The goal of fisheries management is to produce
sustainable
Specific definitions of sustainability are difficult to agree on and have varied in the literature and over time. The concept of sustainability can be used to guide decisions at the global, national, and individual levels (e.g. sustainable livin ...
biological, environmental and socioeconomic benefits from renewable aquatic resources.
Wild fisheries
A wild fishery is a natural body of water with a sizeable free-ranging fish or other aquatic animal (crustaceans and molluscs) population that can be harvested for its commercial value. Wild fisheries can be marine (saltwater) or lacustrine/ri ...
are classified as renewable when the organisms of interest (e.g.,
fish
Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Approximately 95% of li ...
,
shellfish
Shellfish is a colloquial and fisheries term for exoskeleton-bearing aquatic invertebrates used as food, including various species of molluscs, crustaceans, and echinoderms. Although most kinds of shellfish are harvested from saltwater envir ...
,
amphibian
Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terres ...
s,
reptile
Reptiles, as most commonly defined are the animals in the class Reptilia ( ), a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates (lizards and snakes) and rhynchocephalians ( ...
s and
marine mammal
Marine mammals are aquatic mammals that rely on the ocean and other marine ecosystems for their existence. They include animals such as seals, whales, manatees, sea otters and polar bears. They are an informal group, unified only by their reli ...
s) produce an annual biological surplus that with judicious management can be harvested without
reducing future productivity. Fishery management employs activities that protect fishery resources so
sustainable exploitation is possible, drawing on
fisheries science
Fisheries science is the academic discipline of managing and understanding fisheries. It is a multidisciplinary science, which draws on the disciplines of limnology, oceanography, freshwater biology, marine biology, meteorology, conservation, eco ...
and possibly including the
precautionary principle
The precautionary principle (or precautionary approach) is a broad epistemological, philosophical and legal approach to innovations with potential for causing harm when extensive scientific knowledge on the matter is lacking. It emphasizes caut ...
.
Modern fisheries management is often referred to as a governmental system of appropriate
environmental management
Environmental resource management is the management of the interaction and impact of human societies on the environment. It is not, as the phrase might suggest, the management of the environment itself. Environmental resources management aims ...
rules based on defined objectives and a mix of management means to implement the rules, which are put in place by a system of
monitoring control and surveillance Monitoring, control and surveillance (MCS), in the context of fisheries, is defined by the Food and Agriculture Organization (FAO) of the United Nations as a broadening of traditional enforcing national rules over fishing, to the support of the broa ...
. A popular approach is the ecosystem approach to fisheries management. According to the
Food and Agriculture Organization of the United Nations
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
(FAO), there are "no clear and generally accepted definitions of fisheries management".
[FAO (1997]
Fisheries Management
Section 1.2, Technical Guidelines for Responsible Fisheries. FAO, Rome. However, the working definition used by the FAO and much cited elsewhere is:
The integrated process of information gathering
Intelligence assessment, or simply intel, is the development of behavior forecasts or recommended courses of action to the leadership of an organisation, based on wide ranges of available overt and covert information (intelligence). Assessments d ...
, analysis, planning, consultation, decision-making, allocation of resources and formulation and implementation, with necessary law enforcement
Law enforcement is the activity of some members of government who act in an organized manner to enforce the law by discovering, deterring, rehabilitating, or punishing people who violate the rules and norms governing that society. The term en ...
to ensure environmental compliance
Environmental compliance means conforming to environmental laws, regulations, standards and other requirements such as site permits to operate. In recent years, environmental concerns have led to a significant increase in the number and scope o ...
, of regulations or rules which govern fisheries activities in order to ensure the continued productivity of the resources and the accomplishment of other fisheries objectives.
Objectives
Political
According to the
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
, fisheries management should be based explicitly on political objectives, ideally with transparent priorities.
Political goals can also be a weak part of fisheries management, since the objectives can conflict with each other.
Typical political objectives when exploiting a commercially important fish resource are to:
*
maximize sustainable biomass yield
*
maximize sustainable economic yield
* secure and increase employment
* secure protein production and food supplies
* increase export income
For the most recent several decades, the political goals in fisheries management of commercially important species have been rapidly evolving, primarily driven by (1) a recognition of the response of fish and other target animals to changing climate, (2) new technologies for fishing particularly on the high seas, (3) development of competing policy priorities for aquatic environments leading to a more ecosystem-based approach to fisheries management, and (4) new scientific insights about the processes affecting fish population size and recruitment.
The political objectives operative in recreational fisheries management are often substantially different from those prevalent in commercial fisheries management. For example, catch-and-release regulations are common in some types of recreational fisheries. Thus, biological yield is of less important.
International objectives
Fisheries objectives need to be expressed in concrete management rules. In most countries fisheries management rules should be based on the internationally agreed, though non-binding, Code of Conduct for Responsible Fisheries, agreed at a meeting of the U.N.'s Food and Agriculture Organization
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
session in 1995. The
precautionary approach
The precautionary principle (or precautionary approach) is a broad epistemological, philosophical and legal approach to innovations with potential for causing harm when extensive scientific knowledge on the matter is lacking. It emphasizes cauti ...
it prescribes is typically implemented in concrete management rules as minimum
spawning
Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, ''to spawn'' refers to the process of releasing the eggs and sperm, and the act of both sexes is called spawning. Most aquatic animals, except for aquati ...
biomass
Biomass is plant-based material used as a fuel for heat or electricity production. It can be in the form of wood, wood residues, energy crops, agricultural residues, and waste from industry, farms, and households. Some people use the terms bi ...
, maximum fishing mortality rates, etc. In 2005 the
UBC Fisheries Centre
The UBC Institute for the Oceans and Fisheries (IOF) is a research unit at the University of British Columbia (UBC) that was formed in 2015 by incorporating members from the former UBC Fisheries Centre
The UBC Institute for the Oceans and Fisher ...
at the
University of British Columbia
The University of British Columbia (UBC) is a public university, public research university with campuses near Vancouver and in Kelowna, British Columbia. Established in 1908, it is British Columbia's oldest university. The university ranks a ...
comprehensively reviewed the performance of the world's major fishing nations against the Code.
Management mechanisms
Many countries have set up Ministries/Government Departments, named "
Ministry of Fisheries
An agriculture ministry (also called an) agriculture department, agriculture board, agriculture council, or agriculture agency, or ministry of rural development) is a ministry charged with agriculture. The ministry is often headed by a minister f ...
" or similar, controlling aspects of fisheries within their
exclusive economic zones.
Four categories of management means have been devised, regulating either input/investment, or output, and operating either directly or indirectly:
Technical means may include:
* prohibiting devices such as bows and arrows, and spears, or firearms
* prohibiting nets
* setting minimum mesh sizes
* limiting the average potential catch of a vessel in the fleet (vessel and crew size, gear, electronic gear and other physical "inputs".
* prohibiting bait
* snagging
* limits on fish traps
* limiting the number of poles or lines per fisherman
* restricting the number of simultaneous fishing vessels
* limiting a vessel's average operational intensity per unit time at sea
* limiting average time at sea
Catch quotas
Systems that use ''individual transferable quotas'' (ITQ), also called individual fishing quota limit the total catch and allocate shares of that quota among the fishers who work that fishery. Fishers can buy/sell/trade shares as they choose.
A large scale study in 2008 provided strong evidence that ITQ's can help to prevent fishery collapse and even restore fisheries that appear to be in decline.
Other studies have shown negative socio-economic consequences of ITQs, especially on small-sclale fisheries. These consequences include concentration of quota in that hands of few fishers; increased number of inactive fishers leasing their quotas to others (a phenomenon known as armchair fishermen); and detrimental effects on coastal communities.
Elderly maternal fish
Traditional management practices aim to reduce the number of old, slow-growing fish, leaving more room and resources for younger, faster-growing fish. Most marine fish produce huge numbers of eggs. The assumption was that younger spawners would produce plenty of viable
larvae
A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle.
The ...
.
[ AAAS (2005]
''New Science Sheds Light on Rebuilding Fisheries''
However, 2005 research on
rockfish
Rockfish is a common term for several species of fish, referring to their tendency to hide among rocks.
The name rockfish is used for many kinds of fish used for food. This common name belongs to several groups that are not closely related, and ca ...
shows that large, elderly females are far more important than younger fish in maintaining productive fisheries. The larvae produced by these older maternal fish grow faster, survive starvation better, and are much more likely to survive than the offspring of younger fish. Failure to account for the role of older fish may help explain recent collapses of some major US West Coast fisheries. Recovery of some stocks is expected to take decades. One way to prevent such collapses is to establish marine reserves, where fishing is not allowed and fish populations age naturally.
Precautionary principle
''A Fishery Manager's Guidebook'' issued in 2002 by the
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
advises that a set of working principles should be applied to "highlight the underlying key issues" of fisheries management."
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
(2002
A Fishery Manager's Guidebook - Management Measures and Their Application
Rome. . There are 8 principles that should be considered as a whole in order to best manage a fishery. The first principle focuses on the finite nature of fish stocks and how potential yields must be estimated based on the biological constraints of the population.
In a paper published in 2007, Shertzer and Prager suggested that there can be significant benefits to
stock biomass and fishery yield if management is stricter and more prompt. This is supported by recent work on the management of North Sea fisheries in accordance with ranges of acceptable fishing, where fishing at the top of the "acceptable" ranges is many times more risky than fishing near the bottom, but delivers only 20% more yield.
In addition there is growing evidence - and growing recognition by both fishery scientists and small-scale fishermen - that coastal marine protected areas do favour the biodiversity and resilience of ecosystems nearby, significantly enhancing the density, biomass and size of commercially exploited species in local waters.
Human factors
Managing fisheries is about managing people and businesses, and not about managing fish. Fish populations are managed by regulating the actions of people. If fisheries management is to be successful, then associated human factors, such as the reactions of fishermen, are of key importance, and need to be understood.
Management regulations must also consider the implications for stakeholders. Commercial fishermen rely on catches to provide for their families just as farmers rely on crops. Commercial fishing can be a traditional trade passed down from generation to generation. Most commercial fishing is based in towns built around the fishing industry; regulation changes can impact an entire town's economy. Cuts in harvest quotas can have adverse effects on the ability of fishermen to compete with the tourism industry.
Effective management of fisheries includes involving all stakeholders in the fishery. To do this successfully, stakeholders need to feel empowered enough to make meaningful contributions to the management process.
Empowerment has a wide application but in this context it refers to a tool that gives people within the fishing communities an opportunity to shape their own future in order to cope with the impacts from large-scale commercial fishing, competition of resources, and other threats that impact fishing communities.
However, there are limits to empowerment in the fisheries management process. Empowerment maintains an involvement on the part of the state in fisheries management and no matter how empowered the other stakeholders are, the success of fisheries isn't possible without the legislative powers, financial resources, educational support, and research the government provides.
This concept is not accepted by all, as some communities and individuals argue that the state should withdraw completely and let the local communities handle their own fishery management based on cultural traditions and established practices.
Additionally, others have argued that co-management only empowers the wealthy and powerful which in turn solidifies and validates the already existing inequalities of fisheries management.
Empowerment working as a function of co-management, carried out correctly, will not only enable but it will authorize individuals and communities to make meaningful contributions to fisheries management. It is a mechanism that works in a loop, where an individual gains empowerment and encouragement from being a part of the group and the collective action is only successful because of its empowered individuals.
In order to effectively and successfully use empowerment as co-management, it is imperative that study programs, guidelines, reading materials, manuals, and checklists are developed and incorporated into all fisheries management.
Corruption
Fisheries mismanagement is due, in part, to corruption. Corruption and bribery influence the number of fishing licenses that are distributed and to whom, as well as the negotiation of fishing acccess agreements. There is evidence of industrial fisheries corruption among the
Small Island Developing States
Small Island Developing States (SIDS) are a group of developing countries that are small island countries which tend to share similar sustainable development challenges. These include small but growing populations, limited resources, remoteness, ...
of the Pacific Ocean as well as the fisheries off the coast of West Africa. In small-scale fisheries, inspectors who are charged with regulating catch are bribed to give advance notice of surprise inspections and to relax enforcement standards. Some standards are not enforced at all due to bribery, while other infractions may result in smaller fines than mandated. Fishing gear seized during an investigation can also be returned in exchange for a bribe. Corruption of small-scale fisheries has been documented in South Africa and
Lake Victoria
Lake Victoria is one of the African Great Lakes. With a surface area of approximately , Lake Victoria is Africa's largest lake by area, the world's largest tropical lake, and the world's second-largest fresh water lake by surface area after ...
.
Data quality
According to fisheries scientist Milo Adkison, the primary limitation in fisheries management decisions is the absence of quality data. Fisheries management decisions are often based on population models, but the models need quality data to be effective. He asserts that scientists and fishery managers would be better served with simpler models and improved data.
The most reliable source for summary statistics is the
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
Fisheries Department.
Fisheries law
Fisheries law
Fisheries law is an emerging and specialized area of law. Fisheries law is the study and analysis of different fisheries management approaches such as catch shares e.g. Individual Transferable Quotas; TURFs; and others. The study of fisheries law ...
is an emerging and specialized area of law which includes the study and analysis of different fisheries management approaches, including seafood safety regulations and aquaculture regulations. Despite its importance, this area is rarely taught at law schools around the world, which leaves a vacuum of advocacy and research.
Fisheries legislation on a national level differs greatly between countries
Fisheries may also be managed on an international level. One of the first laws enacted was the "
United Nations Convention on the Law of the Sea
The United Nations Convention on the Law of the Sea (UNCLOS), also called the Law of the Sea Convention or the Law of the Sea Treaty, is an international agreement that establishes a legal framework for all marine and maritime activities. , 167 c ...
of 10 December 1982 (LOS Convention)", which entered into force in 1994.
This law set the foundation for all international agreements related to oceans that followed.
Effects of climate change
In the past, changing
climate
Climate is the long-term weather pattern in an area, typically averaged over 30 years. More rigorously, it is the mean and variability of meteorological variables over a time spanning from months to millions of years. Some of the meteorologic ...
has affected inland and offshore fisheries and such changes are likely to continue. From a fisheries perspective, the specific driving factors of climate change include rising water temperature, alterations in the
hydrologic cycle
The water cycle, also known as the hydrologic cycle or the hydrological cycle, is a biogeochemical cycle that describes the continuous movement of water on, above and below the surface of the Earth. The mass of water on Earth remains fairly const ...
, changes in nutrient fluxes, and relocation of
spawning
Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, ''to spawn'' refers to the process of releasing the eggs and sperm, and the act of both sexes is called spawning. Most aquatic animals, except for aquati ...
and nursery habitat. Further, changes in such factors would affect resources at all levels of biological organization, including the genetic, organism, population, and
ecosystem
An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syste ...
levels. Understanding how these factors affect fisheries at a more nuanced level stand as challenges that
fisheries scientists
Fisheries science is the academic discipline of managing and understanding fisheries. It is a multidisciplinary science, which draws on the disciplines of limnology, oceanography, freshwater biology, marine biology, meteorology, conservation, e ...
, across multiple fields, still need to face.
Population dynamics
Population dynamics
Population dynamics is the type of mathematics used to model and study the size and age composition of populations as dynamical systems.
History
Population dynamics has traditionally been the dominant branch of mathematical biology, which has ...
describes the growth and decline of a given fishery
stock
In finance, stock (also capital stock) consists of all the shares by which ownership of a corporation or company is divided.Longman Business English Dictionary: "stock - ''especially AmE'' one of the shares into which ownership of a company ...
over time, as controlled by birth, death and migration. It is the basis for understanding changing fishery patterns and issues such as habitat destruction, predation and optimal harvesting rates. The population dynamics of fisheries has been traditionally used by
fisheries scientists
Fisheries science is the academic discipline of managing and understanding fisheries. It is a multidisciplinary science, which draws on the disciplines of limnology, oceanography, freshwater biology, marine biology, meteorology, conservation, e ...
to determine
sustainable yields.
The basic accounting relation for population dynamics is the
BIDE model:
: ''N''
1 = ''N''
0 + ''B'' − ''D'' + ''I'' − ''E''
where ''N''
1 is the number of individuals at time 1, ''N''
0 is the number of individuals at time 0, ''B'' is the number of individuals born, ''D'' the number that died, ''I'' the number that immigrated, and ''E'' the number that emigrated between time 0 and time 1. While immigration and emigration can be present in
wild fisheries
A wild fishery is a natural body of water with a sizeable free-ranging fish or other aquatic animal (crustaceans and molluscs) population that can be harvested for its commercial value. Wild fisheries can be marine (saltwater) or lacustrine/ri ...
, they are usually not measured.
Care is needed when applying population dynamics to real world fisheries. In the past, over-simplistic modelling, such as ignoring the size, age and reproductive status of the fish, focusing solely on a single species, ignoring
bycatch
Bycatch (or by-catch), in the fishing industry, is a fish or other marine species that is caught unintentionally while fishing for specific species or sizes of wildlife. Bycatch is either the wrong species, the wrong sex, or is undersized or juve ...
and
physical damage to the ecosystem, has accelerated the collapse of key
stocks
Stocks are feet restraining devices that were used as a form of corporal punishment and public humiliation. The use of stocks is seen as early as Ancient Greece, where they are described as being in use in Solon's law code. The law describing ...
.
[ ]
Environmental impact of fishing
The environmental impact of fishing includes issues such as the availability of fish, overfishing, fisheries, and fisheries management; as well as the impact of industrial fishing on other elements of the environment, such as bycatch. These issues are part of marine conservation, and are addressed in fisheries science programs.
Fisheries also have an evolutionary impact on species, especially related to the implementation of
minimum landing size
The minimum landing size (MLS) is the smallest fish measurement at which it is legal to keep or sell a fish. The MLS depends on the species of fish. Sizes also vary around the world, as they are legal definitions which are defined by the local regu ...
s.
Ecosystem based fisheries
According to
marine ecologist Chris Frid, the
fishing industry
The fishing industry includes any industry or activity concerned with taking, culturing, processing, preserving, storing, transporting, marketing or selling fish or fish products. It is defined by the Food and Agriculture Organization as including ...
points to pollution and global warming as the causes of unprecedentedly low fish stocks in recent years, writing, "Everybody would like to see the rebuilding of fish stocks and this can only be achieved if we understand all of the influences, human and natural, on fish dynamics."
Overfishing
Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in th ...
has also had an effect. Frid adds, “Fish communities can be altered in a number of ways, for example they can decrease if particular sized individuals of a species are targeted, as this affects
predator and prey dynamics. Fishing, however, is not the sole perpetrator of changes to marine life -
pollution
Pollution is the introduction of contaminants into the natural environment that cause adverse change. Pollution can take the form of any substance (solid, liquid, or gas) or energy (such as radioactivity, heat, sound, or light). Pollutants, the ...
is another example
..No one factor operates in isolation and components of the ecosystem respond differently to each individual factor."
In contrast to the traditional approach of focusing on a single species, the
ecosystem-based approach is organized in terms of
ecosystem services
Ecosystem services are the many and varied benefits to humans provided by the natural environment and healthy ecosystems. Such ecosystems include, for example, agroecosystems, forest ecosystem, grassland ecosystems, and aquatic ecosystems. Th ...
. Ecosystem-based fishery concepts have been implemented in some regions. In 2007 a group of scientists offered the following "ten commandments":
* Report to Congress (2009)
The State of Science to Support an Ecosystem Approach to Regional Fishery ManagementNational Marine Fisheries Service, NOAA Technical Memorandum NMFS-F/SPO-96.
Ecosystem modelling software
Ecopath
Ecopath with Ecosim (EwE) is a free and open source ecosystem modelling software suite, initially started at NOAA by Jeffrey Polovina, but has since primarily been developed at the formerly UBC Fisheries Centre of the University of British Columbi ...
, with
Ecosim (EwE), is an
ecosystem
An ecosystem (or ecological system) consists of all the organisms and the physical environment with which they interact. These biotic and abiotic components are linked together through nutrient cycles and energy flows. Energy enters the syste ...
modelling
software suite
A software suite (also known as an application suite) is a collection of computer programs (application software, or programming software) of related functionality, sharing a similar user interface and the ability to easily exchange data with each ...
. It was initially a
NOAA
The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
initiative led by
Jeffrey Polovina
Jeffrey Polovina is an American marine scientist. He is known for creating the marine ecosystem model Ecopath.
Early life
Jeffrey Joseph Polovina was born on September 30, 1948 in Troy, New York. He graduated from Carnegie Mellon University with ...
, later primarily developed at the
UBC Fisheries Centre
The UBC Institute for the Oceans and Fisheries (IOF) is a research unit at the University of British Columbia (UBC) that was formed in 2015 by incorporating members from the former UBC Fisheries Centre
The UBC Institute for the Oceans and Fisher ...
of the
University of British Columbia
The University of British Columbia (UBC) is a public university, public research university with campuses near Vancouver and in Kelowna, British Columbia. Established in 1908, it is British Columbia's oldest university. The university ranks a ...
. In 2007, it was named as one of the ten biggest scientific breakthroughs in NOAA's 200-year history. The citation states that Ecopath "revolutionized scientists’ ability worldwide to understand complex marine ecosystems". Behind this lies two decades of development work by
Villy Christensen
Villy Christensen is an ecosystem modeller with a background in fisheries science. He is known for his work as a project leader and core developer of Ecopath, an ecosystem modelling software system widely used in fisheries management. Ecopath was ...
,
Carl Walters
Carl Walters (born 1944) is an American-born Canadian biologist known for his work involving fisheries stock assessments, the adaptive management concept, and ecosystem modeling. Walters has been a professor of Zoology and Fisheries at the Unive ...
,
Daniel Pauly
Daniel Pauly is a French-born marine biologist, well known for his work in studying human impacts on global fisheries and in 2020 was the most cited fisheries scientist in the world. He is a professor and the project leader of the Sea Around Us ...
, and other
fisheries scientist
Fisheries science is the academic discipline of managing and understanding fisheries. It is a multidisciplinary science, which draws on the disciplines of limnology, oceanography, freshwater biology, marine biology, meteorology, conservation, ...
s. As of 2010 there are 6000 registered users in 155 countries. Ecopath is widely used in fisheries management as a tool for modelling and visualising the complex relationships that exist in real world marine ecosystems.
Performance
The
biomass
Biomass is plant-based material used as a fuel for heat or electricity production. It can be in the form of wood, wood residues, energy crops, agricultural residues, and waste from industry, farms, and households. Some people use the terms bi ...
of certain global
fish stock Fish stock or stock fish may also refer to:
*Fish stocks are subpopulations of a particular species of fish.
* Fish stock (food), liquid made by boiling fish bones with vegetables, used as a base for fish soups and sauces
* Fish stocking, the practi ...
s have been allowed to run down. The biomass of many species have now diminished to the point where it is no longer possible to
sustainably
Specific definitions of sustainability are difficult to agree on and have varied in the literature and over time. The concept of sustainability can be used to guide decisions at the global, national, and individual levels (e.g. sustainable livi ...
catch the amount of fish that could be caught. According to a 2008 UN report, titled ''
The Sunken Billions: The Economic Justification for Fisheries Reform'', the world's
fishing fleet
A fishing fleet is an aggregate of commercial fishing vessels. The term may be used of all vessels operating out of a particular port, all vessels engaged in a particular type of fishing (as in the "tuna fishing fleet"), or all fishing vessels of ...
s incur a "$US 50 billion annual economic loss" through depleted stocks and poor fisheries management. The report, produced jointly by the
World Bank
The World Bank is an international financial institution that provides loans and grants to the governments of low- and middle-income countries for the purpose of pursuing capital projects. The World Bank is the collective name for the Interna ...
and the UN
Food and Agriculture Organization
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
(FAO), asserts that half the world's
fishing fleet
A fishing fleet is an aggregate of commercial fishing vessels. The term may be used of all vessels operating out of a particular port, all vessels engaged in a particular type of fishing (as in the "tuna fishing fleet"), or all fishing vessels of ...
could be scrapped with no change in catch.
"By improving governance of marine fisheries, society could capture a substantial part of this $50 billion annual economic loss. Through comprehensive reform, the fisheries sector could become a basis for economic growth and the creation of alternative livelihoods in many countries. At the same time, a nation’s natural capital in the form of fish stocks could be greatly increased and the negative impacts of the fisheries on the marine environment reduced."
The most prominent failure of fisheries management in recent times has perhaps been the events that lead to the
collapse of the Atlantic northwest cod fishery
In 1992, Northern Cod populations fell to 1% of historical levels, due in large part to decades of overfishing. The Canadian Federal Minister of Fisheries and Oceans, John Crosbie, declared a moratorium on the Northern Cod fishery, which f ...
. More recently, the
International Consortium of Investigative Journalists
The International Consortium of Investigative Journalists, Inc. (ICIJ), is an independent global network of 280 investigative journalists and over 140 media organizations spanning more than 100 countries. It is based in Washington, D.C. with pe ...
produced a series of journalistic investigations called ''
Looting the seas''. These detail investigations into the black market for
bluefin tuna Bluefin tuna is a common name used to refer to several species of tuna of the genus ''Thunnus
''Thunnus'' is a genus of ocean-dwelling, ray-finned bony fish from the mackerel family, Scombridae. More specifically, ''Thunnus'' is one of five ...
, the subsidies propping up the Spanish fishing industry, and the overfishing of the
Chilean jack mackerel
The Chilean jack mackerel (''Trachurus murphyi''), sometimes called the Inca scad or Peruvian jack mackerel, is a species of jack mackerel in the genus ''Trachurus'' of the family Carangidae. Since the 1970s, it has become one of the world's mor ...
.
History
Fisheries have been explicitly managed in some places for hundreds of years. More than 80 percent of the world's commercial exploitation of fish and shellfish are harvested from natural occurring populations in the oceans and freshwater areas. For example, the
Māori people
The Māori (, ) are the indigenous Polynesian people of mainland New Zealand (). Māori originated with settlers from East Polynesia, who arrived in New Zealand in several waves of canoe voyages between roughly 1320 and 1350. Over several ce ...
, New Zealand residents for about 700 years, had prohibitions against taking more than what could be eaten and about giving back the first fish caught as an offering to sea god
Tangaroa
Tangaroa (Takaroa in the South Island) is the great of the sea, lakes, rivers, and creatures that live within them, especially fish, in Māori mythology. As Tangaroa-whakamau-tai he exercises control over the tides. He is sometimes depicted as ...
. Starting in the 18th century attempts were made to regulate fishing in the
North Norwegian fishery. This resulted in the enactment of a law in 1816 on the
Lofoten
Lofoten () is an archipelago and a traditional district in the county of Nordland, Norway. Lofoten has distinctive scenery with dramatic mountains and peaks, open sea and sheltered bays, beaches and untouched lands. There are two towns, Svolvær ...
fishery, which established in some measure what has come to be known as territorial use rights.
"The fishing banks were divided into areas belonging to the nearest fishing base on land and further subdivided into fields where the boats were allowed to fish. The allocation of the fishing fields was in the hands of local governing committees, usually headed by the owner of the onshore facilities which the fishermen had to rent for accommodation and for drying the fish."
In Europe, governmental resource protection-based fisheries management is a relatively new idea, first developed for North European fisheries after the first
Overfishing
Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in th ...
Conference held in London in 1936. In 1957 British fisheries researchers
Ray Beverton
Raymond (Ray) John Heaphy Beverton CBE FRS (29 August 1922 – 23 July 1995) was an important founder of fisheries science. He is best known for the book ''On the Dynamics of Exploited Fish Populations''Beverton, R. J. H., and Holt, S. J. 1957. ...
and
Sidney Holt
Sidney J. Holt (28 February 1926 – 22 December 2019) was a British biologist who was a founder of fisheries science. He was best known for the book ''On the Dynamics of Exploited Fish Populations'' which he published with Ray Beverton in 1957.Be ...
published a seminal work on
North Sea
The North Sea lies between Great Britain, Norway, Denmark, Germany, the Netherlands and Belgium. An epeiric sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian S ...
commercial fisheries dynamics.
In the 1960s the work became the theoretical platform for North European management schemes. In North America, both commercial and recreational fisheries have been actively managed for over 150 years. All U.S. states and Canadian provinces have fisheries agencies and their employees implement state, provincial, and federal laws using a broad suite of tools and procedures for both freshwater and marine fisheries.
After some years away from the field of fisheries management, Beverton criticized his earlier work in a paper given at the first World Fisheries Congress in Athens in 1992. "The Dynamics of Exploited Fish Populations" expressed his concerns, including the way his and Sidney Holt's work had been misinterpreted and misused by fishery biologists and managers during the previous 30 years.
Nevertheless, the institutional foundation for modern fishery management had been laid.
In 1996, the
Marine Stewardship Council
The Marine Stewardship Council (MSC) is a non-profit organization which aims to set standards for sustainable fishing. Fisheries that wish to demonstrate they are well-managed and sustainable compared to the MSC's standards are assessed by a te ...
was founded to set standards for
sustainable fishing
A conventional idea of a sustainable fishery is that it is one that is harvested at a sustainable rate, where the fish population does not decline over time because of fishing practices. Sustainability in fisheries combines theoretical discipl ...
. In 2010, the
Aquaculture Stewardship Council
The Aquaculture Stewardship Council (ASC) is an independent non-profit organisation and labelling organization that establishes protocol on farmed seafood while ensuring sustainable aquaculture. The ASC provides producers with a certification of e ...
was created to do the same for
aquaculture
Aquaculture (less commonly spelled aquiculture), also known as aquafarming, is the controlled cultivation ("farming") of aquatic organisms such as fish, crustaceans, mollusks, algae and other organisms of value such as aquatic plants (e.g. lot ...
.
A report by
Prince Charles
Charles III (Charles Philip Arthur George; born 14 November 1948) is King of the United Kingdom and the 14 other Commonwealth realms. He was the longest-serving heir apparent and Prince of Wales and, at age 73, became the oldest person to ...
' International Sustainability Unit, the New York-based
Environmental Defense Fund
Environmental Defense Fund or EDF (formerly known as Environmental Defense) is a United States-based nonprofit environmental advocacy group. The group is known for its work on issues including global warming, ecosystem restoration, oceans, and hu ...
and 50in10 published in July 2014 estimated global fisheries were adding $270 billion a year to global GDP, but by full implementation of sustainable fishing, that figure could rise by an extra amount of as much as $50 billion.
See also
*
Age class structure
Age class structure in fisheries and wildlife management is a part of population assessment. Age class structures can be used to model many populations including trees and fish. This method can be used to predict the occurrence of forest fires wit ...
* ''
All the Fish in the Sea: Maximum Sustainable Yield and the Failure of Fisheries Management''
*
Beverton–Holt model
The Beverton–Holt model is a classic discrete-time population model which gives the expected number ''n'' ''t''+1 (or density) of individuals in generation ''t'' + 1 as a function of the number of individuals in the previous gen ...
*
Community supported fishery
*
Directorate general for Maritime affairs, Fisheries and Aquaculture - France
*
Fisheries Law Centre
The Fisheries Law Centre (FLC) is a grassroots non-profit research centre headquartered in Vancouver, British Columbia, Canada. Although FLC is based in Canada, its outreach is global with researchers located in many countries around the world. FL ...
- Canada
*
Fisheries and Marine Ecosystem Model Intercomparison Project
*
Illegal, unreported and unregulated fishing
Illegal, unreported and unregulated fishing (IUU) is an issue around the world. Fishing industry observers believe IUU occurs in most fisheries, and accounts for up to 30% of total catches in some important fisheries.
Illegal fishing takes pl ...
*
International inspection pennant
*
List of harvested aquatic animals by weight
This is a list of aquatic animals that are Commercial fishing, harvested commercially in the greatest amounts, listed in order of tonnage per year (2012) by the Food and Agriculture Organization. Species listed here have an annual tonnage in exces ...
*
Marine conservation
Marine conservation, also known as ocean conservation, is the protection and preservation of ecosystems in oceans and seas through planned management in order to prevent the over-exploitation of these marine resources. Marine conservation is in ...
*
Marine Protected Area
Marine protected areas (MPA) are protected areas of seas, oceans, estuaries or in the US, the Great Lakes. These marine areas can come in many forms ranging from wildlife refuges to research facilities. MPAs restrict human activity for a conserv ...
*
Maximum sustainable yield In population ecology and economics, maximum sustainable yield (MSY) is theoretically, the largest yield (or catch) that can be taken from a species' stock over an indefinite period. Fundamental to the notion of sustainable harvest, the concept of ...
*
North Pacific Fishery Management Council The North Pacific Fishery Management Council (NPFMC) is one of eight regional councils established by the Magnuson–Stevens Fishery Conservation and Management Act in 1976 to manage the fisheries of the United States. With jurisdiction over the E ...
*
Regional Fisheries Management Organisation A regional fishery body (RFB) is a type of international organization that is dedicated to the sustainability of fishery resources in a particular region, or of highly migratory species. An RFB is classified as one of the following two types:
* reg ...
*
Sustainable fisheries
A conventional idea of a sustainable fishery is that it is one that is harvested at a sustainable rate, where the fish population does not decline over time because of fishing practices. Sustainability in fisheries combines theoretical discipl ...
*
The Sunken Billions
''The Sunken Billions'' is a study jointly published in 2008 by the World Bank and by the Food and Agriculture Organization of the United Nations (FAO). The report shows that the difference between the potential and actual net economic benefits f ...
*
The End of the Line – documentary
*
U.S. Regional Fishery Management Councils
The eight U.S. regional fishery management councils are the primary forums for developing conservation and management measures for U.S. marine fisheries. The regional councils recommend management measures for fisheries in the Exclusive Economic ...
- USA
*
Western Pacific Regional Fishery Management Council
The Western Pacific Regional Fishery Management Council (WPRFMC) is one of eight regional councils established under the Magnuson-Stevens Fishery Conservation and Management Act (MSA) in 1976 to manage offshore fisheries. The WPRFMC's jurisdiction ...
- USA
References
Book sources
*
*
*
* Caddy JF and Mahon R (1995
"Reference points for fisheries management"FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
Fisheries technical paper 347, Rome.
* Duffy, J. Emmett (2008
Marine biodiversity and food security''Encyclopedia of Earth''. Updated 25 July 2008.
*
* Ferguson-Cradler, Gregory. "Fisheries’ collapse and the making of a global event, 1950s–1970s." ''Journal of Global History'' 13.3 (2018): 399-424
online* Froese, R and K Kesner-Reyes (200
''Impact of Fishing on the Abundance of Marine Species''International Council for the Exploration of the Sea
The International Council for the Exploration of the Sea (ICES; french: Conseil International de l'Exploration de la Mer, ''CIEM'') is a regional fishery advisory body and the world's oldest intergovernmental science organization. ICES is headqu ...
, ICES CM 2002/L:12.
*
*
*
*
Lackey, Robert T. 2005. Fisheries: history, science, and management. pp. 121–129.In: ''Water Encyclopedia: Surface and Agricultural Water'', Jay H. Lehr and Jack Keeley, editors, John Wiley and Sons, Inc., Publishers, New York, 781 pp.
* McGoodwin JR (2001
FAO Fisheries, Technical Paper 401. .
* Morgan, Gary; Staples, Derek and Funge-Smith, Simon (2007
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
RAP Publication. 2007/17.
* Pitcher T, D Pauly and P Hart (1999) ''Reinventing Fisheries Management'', Kluwer Academic Publishers.
*
* Townsend, R; Shotton, Ross and Uchida, H (2008
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
Fisheries Technical Paper. No 504.
* Voigtlander, C. W. (Ed.) 1994. ''The State of the World's Fisheries Resources. Proceedings of the World Fisheries Congress (Athens, 1992), Plenary Sessions.'' (Oxford & IBH Publishing Co. Pvt. Ltd., 66 Janpath, N.Delhi 110 001, INDIA). 204 p.
* <
* UNEP (2007).
Procedure for Establishing a Regional System of Fisheries Refugia in the South China Sea and Gulf of Thailand in the context of the UNEP/GEF project entitled: “Reversing Environmental Degradation Trends in the South China Sea and Gulf of Thailand”'. South China Sea Knowledge Document No. 4. UNEP/GEF/SCS/Inf.4
Evolution of Views of Fishery ManagementIn: ''Sustaining Marine Fisheries'' (1999) Commission on Geosciences, Environment and Resources: Ocean Studies Board.
FAO Code of Conduct for Responsible Fisheries*
FAO
The Food and Agriculture Organization of the United Nations (FAO)french: link=no, Organisation des Nations unies pour l'alimentation et l'agriculture; it, Organizzazione delle Nazioni Unite per l'Alimentazione e l'Agricoltura is an intern ...
Index of Fisheries and Aquaculture Technical PapersRome.
{{DEFAULTSORT:Fisheries Management
Fisheries science
Fisheries law
Sustainable fishery
Natural resource management