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Cmfri Library - One of the best experts on this subject based on the ideXlab platform.
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Fisheries institute sets up RAS tank to boost seed production of marine species The Hindu Business Line dated 29th January 2017
The Hindu Business Line, 2017Co-Authors: Cmfri LibraryAbstract:The Central Marine Fisheries Research Institute (CMFRI) has set up a recirculating aquaculture system (RAS) at its Vizhinjam Research Centre to boost the seed production of commercially important marine fishes. RAS, which filters water inside the fish tank helping to reuse the water, will be beneficial to the Brood Stock development of marine fishes. The CMFRI set up the RAS tank with a capacity of 30,000 litres with the aim of popularising sea cage farming to increase the production of marine species
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CMFRI to set up Brood banks of marine fish The Hindu Business Line dated 28th July 2017
The Hindu Business Line, 2017Co-Authors: Cmfri LibraryAbstract:The Central Marine Fisheries Research Institute (CMFRI) has received ₹9 crore from the Centre to set up national Brood banks of marine fish such as cobia and pompano. The Department of Animal Husbandry, Dairying and Fisheries approved CMFRI’s proposal to enhance production of farmed cobia and pompano through the establishment of Brood banks and supply of larvae to all coastal States for seed production. The Brood-bank will be set up at the Mandapam and Vizhinjam regional centres of CMFRI and the regional hatcheries will be established in all maritime States. They will have a quarantine facility, Brood-Stock holding tanks, recirculation aquaculture systems and photothermal control systems
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CMFRI to boost marine fish seed production Economic Times dated 29th January 2017
Economic Times, 2017Co-Authors: Cmfri LibraryAbstract:The Central Marine Fisheries Research Institute's (CMFRI) recirculating aquaculture system (RAS) set up at its Vizhinjam Research Centre here was inaugurated by Union Minister of State for Agriculture and Farmers' Welfare Sudarshan Bhagat on Sunday. This new system will boost the seed production of commercially important marine fishes. The RAS, which filters water inside the fish tank helping to reuse the water, will be beneficial to the Brood Stock development of marine fishes. The CMFRI set up an RAS tank with a capacity of 30,000 litres, with an aim to popularise the sea cage farming to increase the production of marine species. Inaugurating the facility, Bhagat said farmer-friendly technologies should be developed to attract people into fish farming
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Recirculating aqua system set up by CMFRI Times of India dated 29th January 2017
Times of India, 2017Co-Authors: Cmfri LibraryAbstract:() As part of its efforts to boost the seed production of commercially important marine fish, the Central Marine Fisheries Research Institute (CMFRI) has set up a recirculating aquaculture system (RAS) at its Vizhinjam Research Centre. The RAS, which filters water inside the fish tank helping to reuse the water, will be beneficial to the Brood Stock development of marine fishes. The CMFRI set up an RAS tank with a capacity of 30,000 litres, with an aim to popularise the sea cage farming to increase the production of marine species, according to a release from the institute here today. The facility was Inaugurated by Union Minister of State for Agriculture and Farmers' Welfare Sudarshan Bhagat
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CMFRI develops fish seed production tech for 3 species Business Standard dated 26th April 2017
Business Standard, 2017Co-Authors: Cmfri LibraryAbstract:The Central Marine Fisheries Research Institute (CMFRI) here has developed the seed production technology of three species of fish, which is expected to boost the mariculture industry and seafood export as well. The successful development of captive Brood Stock and breeding technology for food fish pink ear emperor, locally known as 'yeri', marine ornamental fish Marcias anthias and ornamental shrimp camel was the first of its kind in the world, CMFRI said in a statement today. A scientific team led by Dr M K Anil, Scientist in charge of the Vizhinjam Research Centre of the CMFRI developed the technology after two years of continuous attempt using the Recirculating Aquaculture System (RAS), it said. The pink ear emperor (Lethrinus lentjan),a high value food fish with superior flesh qualities and hardy nature, is a delicacy in the domestic market and has got a potential demand in global seafood markets to
A Gopalakrishnan - One of the best experts on this subject based on the ideXlab platform.
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captive BroodStock development breeding and seed production of anthid fish family serranidae marcia s anthias pseudanthias marcia in recirculation aquaculture system ras
Aquaculture, 2018Co-Authors: M K Anil, P Gomathi, P K Raheem, B Raju, K K Philipose, A GopalakrishnanAbstract:Abstract Marcia's anthias, Pseudanthias marcia Randall and Hoover, 1993, belonging to the subfamily Anthiinae (family: Serranidae) is a highly sought after marine ornamental fish mainly due to its vibrant pink shade. The present study reports the first successful captive Brood Stock development, spawning, and larval rearing of P. marcia. Brood Stock was developed in a 5-ton recirculation aquaculture system (RAS) using 12 wild caught juveniles. After 6 months of rearing, the fish (8–9.5 cm size) started courtship behavior. Spawning occurred at 1900 to 2100 h. The eggs (mean size - 617.9 ± 14.9 μ) were transparent, pelagic, non-adhesive and with single oil globule. The eggs hatched out after an incubation period of about 14–16 h at a water temperature of 29 °C. Newly hatched larvae measured 1206.6 ± 100.02 μ in total average length and increased to 1852.9 ± 24.68 μ at 48 h post hatch (ph). Mouth opened at 48–50 h post hatch (ph) and measured 76 to 80 μ. Larval rearing trials were conducted using rotifer (L and S type), wild zooplankton, copepod nauplii, artemia nauplii and microparticulate diet. Primordial fin development started by the 10th day post-hatching (dph) (larval size ~2.9 mm) while the opercular and dorsal spines were fully formed by 15 dph (total length of the larva was 4.4 mm). Larvae metamorphosed to miniature adult shape by 32–34 dph and on 50 dph they reached the pink colored juvenile stage (42–43 mm) and at this stage, they were transferred to nursery rearing tank. Four treatments with different feed combination were tried and treatment III with wild copepod gave an average survival of 5.2 ± 1.07% and treatment IV with Parvocalanus crassirostris gave an average survival of 7.3 (±2.51) %.
M K Anil - One of the best experts on this subject based on the ideXlab platform.
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captive BroodStock development breeding and seed production of anthid fish family serranidae marcia s anthias pseudanthias marcia in recirculation aquaculture system ras
Aquaculture, 2018Co-Authors: M K Anil, P Gomathi, P K Raheem, B Raju, K K Philipose, A GopalakrishnanAbstract:Abstract Marcia's anthias, Pseudanthias marcia Randall and Hoover, 1993, belonging to the subfamily Anthiinae (family: Serranidae) is a highly sought after marine ornamental fish mainly due to its vibrant pink shade. The present study reports the first successful captive Brood Stock development, spawning, and larval rearing of P. marcia. Brood Stock was developed in a 5-ton recirculation aquaculture system (RAS) using 12 wild caught juveniles. After 6 months of rearing, the fish (8–9.5 cm size) started courtship behavior. Spawning occurred at 1900 to 2100 h. The eggs (mean size - 617.9 ± 14.9 μ) were transparent, pelagic, non-adhesive and with single oil globule. The eggs hatched out after an incubation period of about 14–16 h at a water temperature of 29 °C. Newly hatched larvae measured 1206.6 ± 100.02 μ in total average length and increased to 1852.9 ± 24.68 μ at 48 h post hatch (ph). Mouth opened at 48–50 h post hatch (ph) and measured 76 to 80 μ. Larval rearing trials were conducted using rotifer (L and S type), wild zooplankton, copepod nauplii, artemia nauplii and microparticulate diet. Primordial fin development started by the 10th day post-hatching (dph) (larval size ~2.9 mm) while the opercular and dorsal spines were fully formed by 15 dph (total length of the larva was 4.4 mm). Larvae metamorphosed to miniature adult shape by 32–34 dph and on 50 dph they reached the pink colored juvenile stage (42–43 mm) and at this stage, they were transferred to nursery rearing tank. Four treatments with different feed combination were tried and treatment III with wild copepod gave an average survival of 5.2 ± 1.07% and treatment IV with Parvocalanus crassirostris gave an average survival of 7.3 (±2.51) %.
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BroodStock development and breeding of black-finned anemone fish
2016Co-Authors: M K Anil, B. Santhosh, B. O. Prasad, Mary GeorgeAbstract:Due to recent advances in saltwater fish-keeping, there is great demand for marine ornamental fishes, especially for those from the tropical coral reef habitats. Exploitation of wild Stock has depleted their availability, thus making it difficult to meet the market demand. This paper describes the development of Brood Stock and a viable technology for commercial production of black-finned anemone fish Amphiprion nigripes. Fecundity of this species ranged from 350-450 per spawning and continuous spawning could be achieved at 12 to 16 days interval. The incubation period was 6 to 7 days. Larvae were successfully fed with rotifer Brachionus plicatilis, Artemia nauplii and particulate feed at appropriate stages of development using green-water system of larval rearing. Juveniles with average size of 15 mm were produced in 40 days with an average survival rate of 72 % and marketable size of 25 mm or more was achieved in less than four months time
Lydersen Espen - One of the best experts on this subject based on the ideXlab platform.
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Brood-Stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus(Linnaeus))
2020Co-Authors: Olk, Tom Robin, Jeuthe Henrik, Wollebæk Jens, Thorarensen Helgi, Lydersen EspenAbstract:Arctic charr (Salvelinus alpinus(Linnaeus)) is a stenothermic cold-water fish, which has been cultured in Northern Europe and North America since the 1980s. The industry has remained relatively small with an annual production between 6000 and 10 000 tonnes, and is still challenged by an unreliable offspring production. This review focuses on offspring production in Arctic charr aquaculture including holding conditions for Brood-Stock, fertilisation and egg rearing until hatch. Brood-Stock requires low temperatures during summer (<12 degrees C) with the optimum still unknown. The temperature maximum for egg incubation lies between 6 and 8 degrees C. The composition of an optimal Brood-Stock diet is debated regarding fatty acids. A demand for a freshwater-based diet rich in omega-6 fatty acids is indicated, but results remain inconclusive. Extensive knowledge has been gained on the timing of spawning and its manipulation through photoperiod, temperature and hormone treatments; spawning can be induced by short-day photoperiod; and temperature drops to 5 degrees C. Eggs are fertilised dry in ovarian fluid. Egg quality is highly variable and positively related to egg size and energy density. Contrary, little information is available on sperm quality and its impact on egg survival. There may also be profound differences between Arctic charr of stationary or anadromous origin regarding requirements for holding conditions of Brood-Stock and their diet. However, these differences have received little attention, and direct comparative studies are in demand
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Brood‐Stock management and early hatchery rearing of Arctic charr (Salvelinus alpinus (Linnaeus))
Wiley, 2019Co-Authors: Olk, Tom Robin, Thorarensen, Helgi Thor, Jeuthe Henrik, Wollebæk Jens, Lydersen EspenAbstract:Arctic charr (Salvelinus alpinus (Linnaeus)) is a stenothermic cold‐water fish, which has been cultured in Northern Europe and North America since the 1980s. The industry has remained relatively small with an annual production between 6000 and 10 000 tonnes, and is still challenged by an unreliable offspring production. This review focuses on offspring production in Arctic charr aquaculture including holding conditions for Brood‐Stock, fertilisation and egg rearing until hatch. Brood‐Stock requires low temperatures during summer (
Patrick Williot - One of the best experts on this subject based on the ideXlab platform.
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restoration of the european sturgeon acipenser sturio in germany
2011Co-Authors: Frank Kirschbaum, Ralph Tiedemann, Patrick Williot, Frank Fredrich, Jörn GessnerAbstract:The onset of practical restoration measures on Acipenser sturio in Germany is represented by the transfer of 40 one-year-old juveniles from the French Cemagref to the German Leibniz-Institute of Freshwater Ecology and Inland Fisheries in 1996 as a result of a bilateral cooperation. Molecular genetic studies revealed that these fish from the Garonne river system represented suitable material for the re-introduction into the tributaries of the North Sea. The fish were used for behavioural, feeding, and rearing experiments to improve the husbandry practice in fresh water. In 2005, a first female developed ripe gonad for the first time but artificial reproduction had not been accomplished to date. Subsequent transfers of juveniles in 2007, 2009, and 2010 allowed the expansion of the German Brood Stock, as well as first experimental releases both with tagged and telemetry transmitters to verify habitat utilization, migration patterns, and – through catch data – growth of the fish in the rivers Elbe, Oste, and Stor.
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building a Brood Stock of acipenser sturio in france
2011Co-Authors: Patrick Williot, T. Rouault, M. Pelard, Rémi Brun, Daniel Mercier, Louis Jacobs, Frank KirschbaumAbstract:The aim of this chapter is to describe the strategy which was applied, the changes needed in the programme, and the results of the Brood Stock building. A five-point process has been set up (when?, how?, which rearing conditions?, which management?, and which rules as reference?). The Stock is described, as well as the delay in resuming food intake for wild-originated fish. The only food accepted on a regular basis is shrimps. Three levels of water salinity (freshwater, brackish water and to a lesser extent sea water) have been tested to simulate some of the species’ natural environment. At present, brackish water is favoured. Resumption of food intake by wild-originated fish might be delayed. Growth is more or less cyclic, related to water temperature and food consumption. Loss of fish is analysed. Growth between 1 year old and 7.5 years old is similar for both genders.
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some ex situ related approaches for assessing the biological variability of acipenser sturio
2011Co-Authors: Patrick WilliotAbstract:Intra-specific biological variability is the core subject of this chapter, the aim being to improve the effectiveness of the long-term restoration programme. This programme is divided into five steps (from Brood-Stock building to post-release monitoring), the first four being more exclusively part of the ex-situ actions. Each step comprises different key tasks. The following two sections of the chapter deal with the known biological variability of the Brood Stock, both genetic and behavioural. With regard to genetic variability, recent approaches based on genomics and proteomics are presented, with a brief analysis of the factors that may impact variability. Next, some proposals are made to meet short-term targets, i.e., those which can potentially be applied immediately, then medium- or long-term proposals which need additional research.
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Artificial reproduction and larval rearing of captive endangered Atlantic sturgeon Acipenser sturio
Endangered Species Research, 2009Co-Authors: Patrick Williot, T. Rouault, M. Pelard, D. Mercier, L. JacobsAbstract:In the early 1990s a functional ex situ Brood Stock of the European Atlantic sturgeon Acipenser sturio was initiated in France as the only means of saving the species from extinction. In late spring 2007, partial and complete oogenesis and complete spermatogenesis were recorded in fish which were born in the wild in 1994 and entered the hatchery in 1995. Here, we report on the 2007 artificial reproduction attempts, which represent a breakthrough in terms of conservation of A. sturio, and possibly some other sturgeon species. From their arrival in the hatchery, fish were held in brackish water (~15). Pre-selected mature fish were transferred to fresh water for 5 wk prior to reproduction attempts. Morpho-physiological observations on testes and ovarian follicles (ovf) determined which fish were the ripest prior to hormonal injection. Three females were tested for in vitro maturation competence (IVMC) by recording the germinal vesicle breakdown (GVBD) in ovf. One of the fish that entered the hatchery in 1995 ovulated; the ovaries were fully developed and exhibited a decisive IVMC (90% GVBD with added hormone and 0% GVBD in control). Two of the 5 hormonally stimulated males provided semen, both of which yielded similar embryological development results. Fertilization rates were 7080%, declining to 3839% of survival at the onset of hatching. Eleven thousand larvae were obtained; these exhibited first feeding at 10 to 11 d post hatch at 18.4°C. Although preliminary, these findings show promise for captive breeding of European Atlantic sturgeon.
