NOAAS ''Pisces'' (R 226) is an American fisheries and
oceanographic
Oceanography (), also known as oceanology and ocean science, is the scientific study of the oceans. It is an Earth science, which covers a wide range of topics, including ecosystem dynamics; ocean currents, waves, and geophysical fluid dynamic ...
research vessel
A research vessel (RV or R/V) is a ship or boat designed, modified, or equipped to carry out research at sea. Research vessels carry out a number of roles. Some of these roles can be combined into a single vessel but others require a dedicated ...
in commission in the
National Oceanic and Atmospheric Administration
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 ...
(NOAA) fleet since 2009.
Construction and commissioning
''Pisces'' was built by
VT Halter Marine
VT Halter Marine, Inc. is a shipbuilding company and an American subsidiary of ST Engineering. It is located in Pascagoula, Mississippi. It specializes in ship design and construction and serves both public and private clients, including the Unit ...
Mississippi
Mississippi () is a state in the Southeastern region of the United States, bordered to the north by Tennessee; to the east by Alabama; to the south by the Gulf of Mexico; to the southwest by Louisiana; and to the northwest by Arkansas. Miss ...
, and was launched on 19 December 2007, sponsored by Dr. Annette Nevin Shelby, the wife of
United States Senator
The United States Senate is the upper chamber of the United States Congress, with the House of Representatives being the lower chamber. Together they compose the national bicameral legislature of the United States.
The composition and powe ...
. The ship was commissioned into service as NOAAS ''Pisces'' (R 226) on 6 November 2009.noaa.gov NOAA Ship ''Pisces'' /ref>
To name the ship and promote interest in science, NOAA held a regional contest requiring submission of a proposed name and an accompanying essay supporting the choice of name. The winning entry, submitted by five
seventh grade
Seventh grade (or grade seven) is a year or level of education. The seventh grade is the eighth school year, the second or third year of middle school, and the first year of junior high school. Students are around 13-14 years old in this stage of ...
Capable of conducting multidisciplinary oceanographic operations in support of biological,
chemical
A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent elements by physical separation methods, i.e., w ...
, and physical process studies, ''Pisces'' was commissioned as the third of a class of five of the most advanced fisheries research vessels in the world, with a unique capability to conduct both fishing and oceanographic research. She is a stern trawler with
fishing
Fishing is the activity of trying to catch fish. Fish are often caught as wildlife from the natural environment, but may also be caught from stocked bodies of water such as ponds, canals, park wetlands and reservoirs. Fishing techniques inclu ...
capabilities similar to those of commercial
fishing vessel
A fishing vessel is a boat or ship used to catch fish in the sea, or on a lake or river. Many different kinds of vessels are used in commercial, artisanal and recreational fishing.
The total number of fishing vessels in the world in 2016 was ...
s. She is rigged for
longlining
Longline fishing, or longlining, is a commercial fishing angling technique that uses a long ''main line'' with baited hooks attached at intervals via short branch lines called ''snoods'' or ''gangions''.trap fishing and can conduct
trawling
Trawling is a method of fishing that involves pulling a fishing net through the water behind one or more boats. The net used for trawling is called a trawl. This principle requires netting bags which are towed through water to catch different spec ...
operations to depths of . Her most advanced feature is the incorporation of
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
-type acoustic quieting technology to enable NOAA scientists to monitor fish populations without the ships noise altering the behavior of the fish, including advanced quieting features incorporated into her machinery, equipment, and propeller. Her oceanographic
hydrophone
A hydrophone ( grc, ὕδωρ + φωνή, , water + sound) is a microphone designed to be used underwater for recording or listening to underwater sound. Most hydrophones are based on a piezoelectric transducer that generates an electric potenti ...
s are mounted on a retractable centerboard, or drop
keel
The keel is the bottom-most longitudinal structural element on a vessel. On some sailboats, it may have a hydrodynamic and counterbalancing purpose, as well. As the laying down of the keel is the initial step in the construction of a ship, in Br ...
, that lowers scientific
transducer
A transducer is a device that converts energy from one form to another. Usually a transducer converts a signal in one form of energy to a signal in another.
Transducers are often employed at the boundaries of automation, measurement, and cont ...
s away from the region of hull-generated flow noise, enhancing the quality of the data collected. To take full advantage of these advanced data-gathering capabilities, she has the
Scientific Sonar System
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe.
Science may be as old as the human species, and some of the earliest archeological evidence for ...
, which can accurately measure the biomass of fish in a survey area. She also has an Acoustic Doppler Current Profiler with which to collect data on
ocean current
An ocean current is a continuous, directed movement of sea water generated by a number of forces acting upon the water, including wind, the Coriolis effect, breaking waves, cabbeling, and temperature and salinity differences. Depth contours ...
s and a multibeam
sonar
Sonar (sound navigation and ranging or sonic navigation and ranging) is a technique that uses sound propagation (usually underwater, as in submarine navigation) to navigate, measure distances (ranging), communicate with or detect objects on o ...
system that provides information on the content of the water column and on the type and
topography
Topography is the study of the forms and features of land surfaces. The topography of an area may refer to the land forms and features themselves, or a description or depiction in maps.
Topography is a field of geoscience and planetary sc ...
of the seafloor while she is underway, and she can gather hydrographic data at any speed up to 11 knots (20 km/hr).
''Pisces'' has a traction-type oceanographic
winch
A winch is a mechanical device that is used to pull in (wind up) or let out (wind out) or otherwise adjust the tension of a rope or wire rope (also called "cable" or "wire cable").
In its simplest form, it consists of a spool (or drum) attach ...
which can deploy up to of 17-mm (0.67-inch) wire rope, electromechanical cable, or
fiberoptic
An optical fiber, or optical fibre in Commonwealth English, is a flexible, transparent fiber made by drawing glass (silica) or plastic to a diameter slightly thicker than that of a human hair. Optical fibers are used most often as a means t ...
cable. She also has two hydrographic winches, each of which can deploy of 9.5-mm (3/8-inch) electromechanical cable, two
trawl
Trawling is a method of fishing that involves pulling a fishing net through the water behind one or more boats. The net used for trawling is called a trawl. This principle requires netting bags which are towed through water to catch different speci ...
winches, each of which has a 35- metric-ton pull and can deploy of 28.5-mm (1⅛-inch) warp wire, and a Gilson winch. She has a telescopic boom and an articulated boom, each with a lifting capacity of 8,000 pounds (3,629 kg. She has an
A-frame
An A-frame is a basic structure designed to bear a load in a lightweight economical manner. The simplest form of an A-frame is two similarly sized beams, arranged in an angle of 45 degrees or less, attached at the top, like an uppercase lette ...
on her starboard side and a large A-frame aft. The oceanographic winch and large after A-frame work in conjunction to serve her stern sampling station, while the two hydrographic winches work with the side A-frame to service her side sampling station, and the two hydrographic winches together give ''Pisces'' the capability to have three scientific packages ready for sequential operations. One of her hydrographic winches also can deploy lines and equipment over her stern. In addition to trawling, her sampling stations can deploy smaller sampling nets, longlines, and fish traps, and she has modified
outrigger
An outrigger is a projecting structure on a boat, with specific meaning depending on types of vessel. Outriggers may also refer to legs on a wheeled vehicle that are folded out when it needs stabilization, for example on a crane that lifts ...
s for shrimp trawling and gear testing. The hydrographic winches can deploy CTD instruments to measure the electrical conductivity, temperature, and
chlorophyll fluorescence
Chlorophyll fluorescence is light re-emitted by chlorophyll molecules during return from excited to non-excited states. It is used as an indicator of photosynthetic energy conversion in plants, algae and bacteria
Bacteria (; singular: b ...
of sea water. ''Pisces'' also can deploy specialized gear such as Multiple Opening/Closing Net and Environmental Sensing System (
MOCNESS MOCNESS is the acronym for ''Multiple Opening/Closing Net and Environmental Sensing System'' and is a net system for plankton in the ocean. The system is towed behind a research vessel with a speed of up to 2.5 knots and consists of five to twenty n ...
) frames, towed vehicles,
dredge
Dredging is the excavation of material from a water environment. Possible reasons for dredging include improving existing water features; reshaping land and water features to alter drainage, navigability, and commercial use; constructing da ...
s, and bottom corers, and she can deploy and recover both floating and bottom-moored sensor arrays. While trawling, ''Pisces'' uses wireless and hard-wired systems to monitor the shape of the trawl net and to work in conjunction with an autotrawl system that sets trawl depth and trawl wire tension and adjusts the net configuration.
''Pisces'' has a 56-square-meter (m²) (602-square-foot) (sq. ft.)
wet laboratory A wet lab, or experimental lab, is a type of laboratory where it is necessary to handle various types of chemicals and potential "wet" hazards, so the room has to be carefully designed, constructed, and controlled to avoid spillage and contamination ...
, a 15-m² (156-sq.-ft.) dry
laboratory
A laboratory (; ; colloquially lab) is a facility that provides controlled conditions in which scientific or technological research, experiments, and measurement may be performed. Laboratory services are provided in a variety of settings: physic ...
, a 27-m² (290-sq.-ft.) chemistry laboratory, and a 46-m² (495-sq.-ft.) acoustic and computer laboratory. She also has a 19-m² (204-sq.-ft.) walk-in scientific
freezer
A refrigerator, colloquially fridge, is a commercial and home appliance consisting of a thermally insulated compartment and a heat pump (mechanical, electronic or chemical) that transfers heat from its inside to its external environment so th ...
, a 9-m² (96-sq.-ft.) controlled environment room, and a 5-m² (54-sq.-ft.) preservation alcove. She has 145 m² (1,560 sq. ft.) of open deck space aft for fishing and scientific operations and another 33 m² (355 sq. ft.) of open deck space at the side sampling station on her starboard side. All of her discharge pipes empty off her port side so that fluids discharged will not contaminate samples collected at the station on her starboard side.
In addition to her crew of 21, ''Pisces'' can accommodate up to 17 scientists.
Service history
Operated by NOAAs Office of Marine and Aviation Operations and with
Pascagoula
The Pascagoula (also Pascoboula, Pacha-Ogoula, Pascagola, Pascaboula, Paskaguna) were an indigenous group living in coastal Mississippi on the Pascagoula River.
The name ''Pascagoula'' is a Mobilian Jargon term meaning "bread people". Choctaw ...
, Mississippi, as her home port, ''Pisces'' collects, monitors, and studies data on a wide range of sea life and ocean conditions, primarily in the waters of the
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...
Gulf of Mexico
The Gulf of Mexico ( es, Golfo de México) is an ocean basin and a marginal sea of the Atlantic Ocean, largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United ...
,
Caribbean Sea
The Caribbean Sea ( es, Mar Caribe; french: Mer des Caraïbes; ht, Lanmè Karayib; jam, Kiaribiyan Sii; nl, Caraïbische Zee; pap, Laman Karibe) is a sea of the Atlantic Ocean in the tropics of the Western Hemisphere. It is bounded by Mexico ...
, and
Atlantic Ocean
The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...
as far north as
North Carolina
North Carolina () is a state in the Southeastern region of the United States. The state is the 28th largest and 9th-most populous of the United States. It is bordered by Virginia to the north, the Atlantic Ocean to the east, Georgia and ...
. The ship collects data that scientists use to study variations in ocean conditions and sea life – including shrimp and other
marine invertebrate
Marine invertebrates are the invertebrates that live in marine habitats. Invertebrate is a blanket term that includes all animals apart from the vertebrate members of the chordate phylum. Invertebrates lack a vertebral column, and some hav ...
s,
reef fish
Coral reef fish are fish which live amongst or in close relation to coral reefs. Coral reefs form complex ecosystems with tremendous biodiversity. Among the myriad inhabitants, the fish stand out as colourful and interesting to watch. Hundreds ...
, and
groundfish
Demersal fish, also known as groundfish, live and feed on or near the bottom of seas or lakes (the demersal zone).Walrond Carl . "Coastal fish - Fish of the open sea floor"Te Ara - the Encyclopedia of New Zealand. Updated 2 March 2009 They oc ...
noaa.gov NOAA Deepwater Horizon Archive /ref> – to better understand the sustainability of fisheries, the structure and function of
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 ...
s, fish habitats and habitat restoration,
coral reef
A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups.
C ...
s, and the status of
protected species
An endangered species is a species that is very likely to become extinct in the near future, either worldwide or in a particular political jurisdiction. Endangered species may be at risk due to factors such as habitat loss, poaching and invas ...
. She also makes weather and
sea state
In oceanography, sea state is the general condition of the free surface on a large body of water—with respect to wind waves and swell—at a certain location and moment. A sea state is characterized by statistics, including the wave height, ...
observations, reports on other environmental conditions, conducts habitat assessments, and surveys
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 ...
and
seabird
Seabirds (also known as marine birds) are birds that are adapted to life within the marine environment. While seabirds vary greatly in lifestyle, behaviour and physiology, they often exhibit striking convergent evolution, as the same enviro ...
populations.
During the latter half of 2010, ''Pisces'' conducted several cruises in the Gulf of Mexico to assess the effect of the BP''Deepwater Horizon'' oil spill on marine life there and to monitor the water column in the vicinity of the ''
Deepwater Horizon
''Deepwater Horizon'' was an ultra-deepwater, dynamically positioned, semi-submersible offshore drilling rig owned by Transocean and operated by BP. On 20 April 2010, while drilling at the Macondo Prospect, a blowout caused an explosion ...