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Hydrobiology is the science of life and life processes in water. Much of modern hydrobiology can be viewed as a sub-discipline of
ecology Ecology () is the study of the relationships between living organisms, including humans, and their physical environment. Ecology considers organisms at the individual, population, community, ecosystem, and biosphere level. Ecology overl ...
but the sphere of hydrobiology includes
taxonomy Taxonomy is the practice and science of categorization or classification. A taxonomy (or taxonomical classification) is a scheme of classification, especially a hierarchical classification, in which things are organized into groups or types. ...
, economic and industrial biology,
morphology Morphology, from the Greek and meaning "study of shape", may refer to: Disciplines * Morphology (archaeology), study of the shapes or forms of artifacts * Morphology (astronomy), study of the shape of astronomical objects such as nebulae, galaxies ...
, and physiology. The one distinguishing aspect is that all fields relate to aquatic organisms. Most work is related to
limnology Limnology ( ; from Greek λίμνη, ''limne'', "lake" and λόγος, ''logos'', "knowledge") is the study of inland aquatic ecosystems. The study of limnology includes aspects of the biological, chemical, physical, and geological characteris ...
and can be divided into lotic system ecology (flowing waters) and lentic system ecology (still waters). One of the significant areas of current research is
eutrophication Eutrophication is the process by which an entire body of water, or parts of it, becomes progressively enriched with minerals and nutrients, particularly nitrogen and phosphorus. It has also been defined as "nutrient-induced increase in phytopla ...
. Special attention is paid to biotic interactions in
plankton Plankton are the diverse collection of organisms found in water (or air) that are unable to propel themselves against a current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucia ...
assemblage including the
microbial loop The microbial loop describes a trophic pathway where, in aquatic systems, dissolved organic carbon (DOC) is returned to higher trophic levels via its incorporation into bacterial biomass, and then coupled with the classic food chain formed by phy ...
, the mechanism of influencing
algal bloom An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in freshwater or marine water systems. It is often recognized by the discoloration in the water from the algae's pigments. The term ''algae'' encompass ...
s, phosphorus load, and lake turnover. Another subject of research is the acidification of mountain lakes. Long-term studies are carried out on changes in the ionic composition of the water of rivers, lakes and reservoirs in connection with acid rain and
fertilization Fertilisation or fertilization (see spelling differences), also known as generative fertilisation, syngamy and impregnation, is the fusion of gametes to give rise to a new individual organism or offspring and initiate its development. Proce ...
. One goal of current research is elucidation of the basic environmental functions of the ecosystem in reservoirs, which are important for water quality management and water supply. Much of the early work of hydrobiologists concentrated on the biological processes utilized in sewage treatment and
water purification Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Most water is purified and disinfected for hu ...
especially slow sand filters. Other historically important work sought to provide biotic indices for classifying waters according to the biotic communities that they supported. This work continues to this day in Europe in the development of classification tools for assessing water bodies for the EU water framework directive. A hydrobiologist technician conducts field analysis for hydrobiology. They identify plants and living species, locate their habitat, and count them. They also identify pollutants and nuisances that can affect the aquatic fauna and flora. They take the samples and write reports of their observations for publications. A hydrobiologist engineer intervenes more in the process of the study. They define the intervention protocols and what samples should be taken. They plan and program the study campaigns, and then summarize their results. In the event of pollution, they propose solutions to improve the biological quality of water within the framework of the regulations in force. In the case of complex programs, hydrobiologists can work in a multidisciplinary team with botanists and zoologists. The hydrobiologist works on behalf of large public institutions of a scientific and technological nature (CNRS, INRA, IRD, CIRAD, IRSTEA ...), public institutions (Water Agencies, Regional Directorates environment, Higher Council of Fisheries, CEMAGREF ...), companies (EDF, Veolia environment, Suez environment, Saur, ...), local authorities, research departments, and associations (Federations of fishing, Permanent Centers for Environmental Initiatives ...).


Training and studies

The biologist technician usually has a training level bac +2 or bac +3: - DUT biological engineering options biological and biochemical analyzes (ABB), environmental engineering, - BTSA water professions - BTS GEMEAU - water management and control - BTS and regional controls - BTSA Agricultural, Biological and Biotechnological Analyzes (ANABIOTEC) - DEUST analysis of biological media - Bachelor's degree in biology The engineer in hydrobiology has a training level bac +5: - engineering school diploma: INA, ENSA, Polytech Montpellier sciences and water technologies - master's degree in environmental sciences or biology (training examples) environmental management and coastal ecology (University of La Rochelle) biology of organisms and populations (University of Burgundy) continental and coastal environments sciences Environment, Soils, Waters and Biodiversity (University of Rouen) operation and restoration of continental aquatic environments (University of Clermont Ferrand), etc.


Field of research interests

The following are the research interests of Hydrobiologists: ** Acidification impact on lake and reservoir ecosystems **
Ocean acidification Ocean acidification is the reduction in the pH value of the Earth’s ocean. Between 1751 and 2021, the average pH value of the ocean surface has decreased from approximately 8.25 to 8.14. The root cause of ocean acidification is carbon dioxid ...
**
Paleolimnology Paleolimnology (from Greek: παλαιός, ''palaios'', "ancient", λίμνη, ''limne'', "lake", and λόγος, ''logos'', "study") is a scientific sub-discipline closely related to both limnology and paleoecology. Paleolimnological studies fo ...
of remote mountain lakes ** Molecular ecology,
phylogeography Phylogeography is the study of the historical processes that may be responsible for the past to present geographic distributions of genealogical lineages. This is accomplished by considering the geographic distribution of individuals in light of ge ...
and taxonomy of Cladocera ** Chemical communication in
plankton Plankton are the diverse collection of organisms found in water (or air) that are unable to propel themselves against a current (or wind). The individual organisms constituting plankton are called plankters. In the ocean, they provide a crucia ...
(prey-predator interaction) ** Biomanipulation of water reservoirs ** Phosphorus and nitrogen nutrient cycles


Organizations


American Society of Limnology and Oceanography (ASLO)International Association of Theoretical and Applied Limnology (SIL)American Fisheries SocietyFreshwater Biological Association, EnglandMarine Biological Laboratory (USA)Australian Society for Fish BiologyFisheries and Marine Institute of Memorial University of NewfoundlandDepartment of Hydrobiology (Charles University, Prague)Water Research Institute T.G.M.
* ttps://web.archive.org/web/19990420134453/http://www.jcu.cz/~vurh/welcome_gb.html Research Institute of Fish Culture and Hydrobiologybr>Department of Hydrobiology, Slovak Academy of Science, Bratislava, SlovakiaMax-Planck-Institut fur Limnologie in Ploen, GermanyInstitute of Hydrobiology, Chinese Academy of SciencesHydrobiology Pty Ltd
Brisbane, Australia based private consulting company

University of Tartu, Estonia
Department of Hydrobiology
Bulgarian Academy of Sciences
Department of General and Applied Hydrobiology
Faculty of Biology, Sofia University "Sveti Kliment Ohridski", Bulgaria


Journals


Fundamental and Applied LimnologyInternational Review of HydrobiologyIndian HydrobiologyHydrobiologiaThe African Journal of Tropical Hydrobiology and Fisheries

Review of Hydrobiology

The Biological Bulletin


Notable researchers

* Jacques Cousteau * Jane Lubchenco


See also

*
Aquatic ecosystem An aquatic ecosystem is an ecosystem formed by surrounding a body of water, in contrast to land-based terrestrial ecosystems. Aquatic ecosystems contain communities of organisms that are dependent on each other and on their environment. The t ...
*
Aquatic toxicology Aquatic toxicology is the study of the effects of manufactured chemicals and other anthropogenic and natural materials and activities on aquatic organisms at various levels of organization, from subcellular through individual organisms to communit ...
* Freshwater biology * Marine biology * Marine life


References

*E.P.H. Best (Editor), Jan P. Bakker (Editor) ''Netherlands-Wetlands'' (Developments in Hydrobiology series) (Kluwer Academic Publishers, Dordrecht, 1993, 328 pp) *R.I. Jones (Editor), V. Ilmavirta (Editor) ''Flagellates in Freshwater Ecosystems'' (Developments in Hydrobiology series) (Kluwer Academic Publishers, Dordrecht, 1992, 498pp.) *Jürgen Schwoerbel ''Methods of hydrobiology (freshwater biology)'' (Pergamon Press; st English ed.edition, 1970, 200pp.) *Hydrobiologist by Josée Lesparre © CIDJ - 09/2019


Citations

* Kopáček, Jiří; Kaňa, Jiří; Bičárová, Svetlana; Brahney, Janice; Navrátil, Tomáš; Norton, Stephen A.; Porcal, Petr; Stuchlík, Evžen (2019-09-06). "Climate change accelerates recovery of the Tatra Mountain lakes from acidification and increases their nutrient and chlorophyll a concentrations". ''Aquatic Sciences''. * Beamish, Richard J.; Harvey, Harold H. (2011-04-13). "Acidification of the La Cloche Mountain Lakes, Ontario, and Resulting Fish Mortalities". ''Journal of the Fisheries Board of Canada''. * Qu, Bin; Zhang, Yulan; Kang, Shichang; Sillanpää, Mika (2019-02-01). "Water quality in the Tibetan Plateau: Major ions and trace elements in rivers of the "Water Tower of Asia"". ''Science of the Total Environment''. * Galizia Tundisi, José (2018-08-01). "Reservoirs: New challenges for ecosystem studies and environmental management". ''Water Security''. * "Introduction to the EU Water Framework Directive  - Environment - European Commission". ''ec.europa.eu''. Retrieved 2022-03-01 * Doney, Scott C.; Busch, D. Shallin; Cooley, Sarah R.; Kroeker, Kristy J. (2020-10-17). "The Impacts of Ocean Acidification on Marine Ecosystems and Reliant Human Communities". ''Annual Review of Environment and Resources''. * Moser, Katrina A.; Hundey, Elizabeth J.; Sia, Maria E.; Doyle, Rebecca M.; Dunne, Holly; Longstaffe, Fred J. (2020-05-01). "Factors Leading to Increased Algal Production in Mountain Lakes: A Paleolimnological Perspective from the Uinta Mountains, Utah, USA": * Bekker, Eugeniya I.; Karabanov, Dmitry P.; Galimov, Yan R.; Haag, Christoph R.; Neretina, Tatiana V.; Kotov, Alexey A. (2018-03-15). "Phylogeography of Daphnia magna Straus (Crustacea: Cladocera) in Northern Eurasia: Evidence for a deep longitudinal split between mitochondrial lineages". * Shemi, Adva; Alcolombri, Uria; Schatz, Daniella; Farstey, Viviana; Vincent, Flora; Rotkopf, Ron; Ben-Dor, Shifra; Frada, Miguel J.; Tawfik, Dan S.; Vardi, Assaf (2021-11). "Dimethyl sulfide mediates microbial predator–prey interactions between zooplankton and algae in the ocean". ''Nature Microbiology'' * Jůza, Tomáš; Duras, Jindřich; Blabolil, Petr; Sajdlová, Zuzana; Hess, Josef; Chocholoušková, Zdeňka; Kubečka, Jan (2019-10-01). "Recovery of the Velky Bolevecky pond (Plzen, Czech Republic) via biomanipulation – Key study for management". ''Ecological Engineering'' * Hecky, R. E.; Bootsma, H. A.; Mugidde, R. M.; Bugenyi, F. W. B. (1996), "Phosphorus Pumps, Nitrogen Sinks, and Silicon Drains: Plumbing Nutrients in the African Great Lakes", ''The Limnology, Climatology and Paleoclimatology of the East African Lakes'', Routledge


External links


Hydrobiology website
Website for Hydrobiology, Aquacultures, Ichthyology, Water purification and Biological Oceanology - Bulgaria.
The International Congress on the Biology of FishAnnual Larval Fish ConferenceAnnual Northeast Fish and Wildlife Conference


Prints proceedings for international conferences on Hydrobiology {{Authority control Aquatic biomes Aquatic ecology Branches of biology