Echo sounding or depth sounding is the use of sonar for ranging, normally to determine the depth of water (bathymetry). It involves transmitting acoustic waves into water and recording the time interval between emission and return of a pulse; the resulting time of flight, along with knowledge of the speed of sound in water, allows determining the distance between sonar and target. This information is then typically used for navigation purposes or in order to obtain depths for charting purposes.
A research vessel 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 vessel. Due to the demanding nature of the work, research vessels may be constructed around an icebreaker hull, allowing them to operate in polar waters.
The National Institute of Oceanography, founded on 1 January 1966 as one of 38 constituent laboratories of the CSIR, is a self-governing research organisation in India that conducts scientific research and studies on the unique oceanographic features of the northern Indian Ocean. It is headquartered in Goa and has regional offices in Kochi, Mumbai, and Visakhapatnam.
The National Oceanography Centre Southampton (NOCS) is a centre for research, teaching, and technology development in Ocean and Earth science. NOCS was created in 1995, jointly between the University of Southampton and the UK Natural Environment Research Council and is located within the port of Southampton at a purpose-built dockside campus with modern facilities. In 2010 the university and NERC components demerged, and the NERC-managed component became the National Oceanography Centre. The two components of NOCS continue close collaboration through the jointly run Graduate School, shared research facilities and laboratories, complementary research groups, and many joint research grants and publications. The university component “Ocean and Earth Science, National Oceanography Centre Southampton” (OES) is part of the Faculty of Environmental and Life Sciences, (FELS). It was ranked 46th in the world for Earth and Marine Sciences by the QS World University Rankings in 2019.
The Institut Français de Recherche pour l'Exploitation de la Mer or Ifremer is an oceanographic institution in Brest, France. A state-run and funded scientific organization, it is France’s national integrated marine science research institute.
The riserless research vessel JOIDES Resolution, often referred to as the JR, was one of the scientific drilling ships used by the International Ocean Discovery Program (IODP), an international, multi-drilling platform research program. JOIDES Resolution was previously the main research ship used during the Ocean Drilling Program (ODP) and was used along with the Japanese drilling vessel Chikyu and other mission-specific drilling platforms throughout the Integrated Ocean Drilling Program. She is the successor of Glomar Challenger.
CalCOFI is a multi-agency partnership formed in 1949 to investigate the collapse of the sardine population off California. The organization's members are from NOAA Fisheries Service, Scripps Institution of Oceanography, and California Department of Fish and Wildlife. The scope of this research has evolved into the study of marine ecosystems off California and the management of its fisheries resources. In 2004, the CalCOFI survey area became one of 26 Long Term Ecological Research Network (LTER) research sites. This time-series of oceanographic and fisheries data allows scientists to assess the human impact and effects of climate change on the coastal ocean ecosystem. CalCOFI hydrographic and biological data, publications, and web information are distributed for use without restriction under the terms of the GNU Free Documentation License.
Fishing in India is a major sector within the economy of India contributing 1.07% of its total GDP. The fishing sector in India supports the livelihood of over 28 million people in the country, especially within the marginalized and vulnerable communities. India is the third largest fish producing country in the world accounting for 7.96% of the global production and second largest producer of fish through aquaculture, after China. The total fish production during the FY 2020-21 is estimated at 14.73 million metric tonnes. According to the National Fisheries Development Board the Fisheries Industry generates an export earnings of Rs 334.41 billion. Centrally sponsored schemes will increase exports by Rs 1 lakh crore in FY25. 65,000 fishermen have been trained under these schemes from 2017 to 2020. Freshwater fishing consists of 55% of total fish production.
The Marine Institute is a state agency in Ireland that provides government, public agencies and the maritime industry with scientific, advisory and economic development services, aiming to inform policy-making, regulation and the sustainable management and growth of the country's marine resources. Founded in 1991 on foot of a 1974 report, the institute undertakes and promotes marine research and development. The agency's staff and operations are governed by a ministerially-appointed board. Based at its headquarters near Galway, it has an office in Dublin and two research vessels.
The Kerala University of Fisheries and Ocean Studies (KUFOS) is a university established by the Government of Kerala devoted to studies in fisheries and ocean sciences. The bill seeking to establish the university was passed by the Kerala Legislative Assembly on 30 December 2010. KUFOS has its headquarters in the premises of the College of Fisheries, Panangad, near Madavana Junction along the Kochi Bypass. The College of Fisheries, established in 1979, was a constituent college of the Kerala Agricultural University. KUFOS is the first university in India exclusively dedicated to studies in fisheries and allied disciplines. The university was inaugurated and dedicated to the nation in a function held at the campus of the College of Fisheries, Panangad, on 20 February 2011.
Ichthyoplankton are the eggs and larvae of fish. They are mostly found in the sunlit zone of the water column, less than 200 metres deep, which is sometimes called the epipelagic or photic zone. Ichthyoplankton are planktonic, meaning they cannot swim effectively under their own power, but must drift with the ocean currents. Fish eggs cannot swim at all, and are unambiguously planktonic. Early stage larvae swim poorly, but later stage larvae swim better and cease to be planktonic as they grow into juveniles. Fish larvae are part of the zooplankton that eat smaller plankton, while fish eggs carry their own food supply. Both eggs and larvae are themselves eaten by larger animals.
EVNautilus is a 68-meter (223 ft) research vessel owned by the Ocean Exploration Trust under the direction of Robert Ballard, the researcher known for finding the wreck of the Titanic and the German battleship Bismarck. The vessel's home port is at the AltaSea facility in San Pedro in the Port of Los Angeles, California. Nautilus is equipped with a team of remotely operated vehicles (ROVs), Hercules, Argus, Little Hercules, and Atalanta, a multibeam mapping system, and mapping tools Diana and Echo, allowing it to conduct deep sea exploration of the ocean to a depth of 4,000 meters (13,000 ft).
The Centre for Marine Living Resources & Ecology (CMLRE) is a research institute in Kochi, Kerala under the Ministry of Earth Sciences, Government of India with a mandate to study the marine living resources. Today, apart from implementing various research projects of the ministry, the institute also manages and operates the Fishery Oceanographic Research Vessel (FORV) Sagar Sampada.
NOAAS David Starr Jordan (R444) was an American fisheries research vessel in commission in the National Oceanic and Atmospheric Administration (NOAA) from 1970 to 2010. She previously was in the United States Fish and Wildlife Service's Bureau of Commercial Fisheries fleet from 1966 to 1970 as US FWS David Starr Jordan.
The Ninfe class of survey vessels consists of two catamaran hulls operated by the Marina Militare Italiana.
CSIRO Oceans and Atmosphere (O&A) (2014–2022) was one of the then 8 Business Units of the Commonwealth Scientific and Industrial Research Organisation (CSIRO), Australia's largest government-supported science research agency. In December 2022 it was merged with CSIRO Land and Water to form a single, larger Business Unit called simply, "CSIRO Environment".
NOAAS George B. Kelez, previously NOAAS George B. Kelez, was an American research vessel in commission in the National Oceanic and Atmospheric Administration (NOAA) fleet from 1972 to 1980. Prior to her NOAA career, she operated under the United States Fish and Wildlife Service′s Bureau of Commercial Fisheries from 1962 to 1970 as US FWS George B. Kelez and the National Marine Fisheries Service from 1970 to 1972 as NOAAS George B. Kelez.
NOAAS Murre II, previously NOAAS Murre II, was an American research vessel in commission in the National Oceanic and Atmospheric Administration (NOAA) fleet from 1970 to 1989. Prior to her NOAA career, she operated under the United States Department of the Interior′s Fish and Wildlife Service from 1949 to 1956 and under the United States Fish and Wildlife Service′s Bureau of Commercial Fisheries from 1956 to 1970 as US FWS Murre II.
MV Brown Bear was an American research vessel in commission in the fleet of the United States Department of Agriculture′s Bureau of Biological Survey and Alaska Game Commission from 1934 to 1940 and in the fleet of the United States Department of the Interior′s Fish and Wildlife Service from 1940 to 1942 and from 1946 to 1951, under the control of the University of Washington from 1952 to 1965, and in commission in the fleet of the United States Fish and Wildlife Service from 1965 to 1970 and of the National Oceanic and Atmospheric Administration′s National Marine Fisheries Service (NMFS) from 1970 to 1972.
US FWS Hugh M. Smith was an American fisheries science research vessel in commission from 1949 to 1959 in the fleet of the United States Department of the Interior's Fish and Wildlife Service. She was among the first U.S. fisheries science vessels to explore the central Pacific Ocean in search of commercially valuable populations of fish.
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