Features

This factsheet published by the Southern Regional Aquaculture Center (SRAC) gives information on stress and its role in fish disease.

Roy P.E. Yanong, University of Florida IFAS extension, discusses the fish health management in recirculating aquaculture systems. As Part 1 of a three part series, this article gives and introduction to management including biosecurity and water quality.

A six-week feeding trial was conducted to investigate the suitability of animal oils as total replacement for cod liver oil (CO) in rainbow trout juvenile feeds. The effect of animal fats on the growth performance, survival and fatty acid profile was measured.…

After a decade of research, Korea has produced individual glass eels for Japanese eel aquaculture. Although Japan also has this technology, its production of seed is not enough to meet external demand. To aid further development, a series of studies led by Dr …

FSH and LH are two important hormones which regulate the processes of puberty and maturation. These hormones are secreted by the pituitary gland and are transported in the blood to the genitalia, where they regulate maturation.

Previous studies have shown that higher sea temperatures tend to reduce both appetite and growth rates in farmed salmon. A recent NIFES study has demonstrated that salmon grow better at lower temperatures than was previously believed.

Ruth Francis-Floyd, University of Florida IFAS extension looks at successful fish health management. The document provides and introduction to disease, the types of fish diseases and what to do if fish are sick.

A study led by Dong-Fang Deng, Oceanic Institute, Hawaii, USA has investigated the effects of storage temperature and duration on the quality of finished fishmeal fed to juvenile shrimp. Results found that although the fishmeals stored at 30 had less crude pro…

A fundamental challenge in evolutionary biology is the mechanistic integration from genomic variation to fitness of organisms in their natural environment. Using RNA-sequencing, researchers led by Joanna L Kelley, Department of Genetics, Stanford University, C…

Gentle and short-lived crowding and pumping from the sea cage to the processing vessel is best in order to achieve good quality and long shelf life of salmon fillet. This is one of the conclusions of a project carried out at Marine Harvest from 2010-2011 invol…

With aquaculture providing half of seafood eaten and the industry continuing to grow, research done by Emiko Phillips and Lyn Newton, University of West of England Bristol, found that the majority of consumers in the UK know little about aquaculture. The artic…

The use of alternative lipids in tilapia feeds is becoming increasingly commonplace due to the rising cost of fish oil (FO). However, since this practice will reduce the content of heath beneficial long chain polyunsaturated fatty acids (LC-PUFA) in tilapia fi…

The overall objective of the Commission's proposals for a modern and simpler Common Fisheries Policy (CFP) is to make fishing sustainable - environmentally, economically and socially. The new policy will bring fish stocks back to sustainable levels by ending o…

During earlier trials involving wild cod in captivity, scientists at Nofima have experienced problems getting the cod to eat pellet feed. Nofima, in collaboration with the Institute of Marine Research and SINTEF Fisheries and Aquaculture, has now demonstrated …

Researchers from the USDA/ARS National Center for Cool and Cold Water Aquaculture, Leetown, USA have conducted genome scans of rainbow trout families from a single broodstock population to identify the effect quantitative trait loci (QTL) have on stress respon…

A new study, by Villasante S, Morato T, Rodriguez Gonzalez D, et al, reports that fishing depths in the EU have increased, with more deep-sea fish species being harvested. Deep-sea fish populations are often more vulnerable to effects of fishing, and the ecolo…

This factsheet published by the Southern Regional Aquaculture Center (SRAC) gives information on phytoplankton culture for aquaculture feed.

Populations of large pelagic predators have declined recently due to intensified exploitation. Boris Worm and Derek P. Tittensor, Dalhousie University, Canada, look at the range contraction of large marine pelagic predators, specifically tuna and billfish, by …

The potential impact of sea lice infestation on outwardly migrating Atlantic salmon smolts has been investigated, by researchers from the Marine Institute, Ireland, by treating populations of ranched salmon, prior to release, with a prophylactic sea lice treat…

Biologists from the University of Bonn have discovered that the cichlid fish Pelvicachromis taeniatus can see in the near infrared range; this was thought to be unlikely until now. Seeing in the infrared range is apparently helping fish to hunt in shallow Afri…

Recent advances in next-generation sequencing enabled an array of whole genome sequencing or re-sequencing projects in both model and non-model species. Such efforts have produced a wealth of genome resources. However, thorough genome analysis thereafter is es…

This factsheet by the Southern Regional Aquaculture Center (SRAC) gives information on amyloodinium ocellatum, an important parasite of cultured marine fish.

This factsheet by the Southern Regional Aquaculture Center (SRAC) gives information on diseases of concern in molluscan aquaculture.

This factsheet by the Southern Regional Aquaculture Center (SRAC) gives information on disease prevention on fish farms.

Fishmeal is a complex protein source that is commonly used in fish feed. A new article published in Animal Feed Science and Technology shows how fishmeal physical and chemical properties influence both the production of fish feed and the physical feed quality.…

Catfish farmers in Vietnams Mekong River Delta are barely scraping by. They operate on the tightest of profit margins 3% to 5% in a good year and deal with a highly volatile, boom-and-bust export market. For an industry thats already on the brink, could the ad…

The Asian region is a major supplier of fish products to the EU market. Over the period 2005-2010 in particular, the aquaculture sector in some Asian countries became an important producer as well as exporter of whitefish and shrimps. This article provides a s…

The zebrafish is a potential tool for testing one class of unique individual genetic differences found in humans, and may yield information helpful for the emerging field of personalized medicine, according to a team led by Penn State College of Medicine scien…

The Asian region is a major supplier of fish products to the EU market. Over the period 2005-2010 in particular, the aquaculture sector in some Asian countries became an important producer as well as exporter of whitefish and shrimps, according to information …

Tunas and their relatives dominate the worlds largest ecosystemsand sustain some of the most valuable fisheries. The impacts offishing on these species have been debated intensively over thepast decade, giving rise to divergent views on the scale and extentof …

Little attention has been paid to the use of antibiotics in the aquaculture industry and to the spread of bacteria that are resistance to antibiotics. Since the antibiotics that are used in veterinary medicine and aquaculture belong to the same group of antibi…

Irish food and drink exports have passed 9 billion for the first time and the country has seen its food exports to Asia rise by 75 per cent since 2010, according to a new report from Bord Bia, the Irish Food Board.

In line with the Harvest Strategy Standard for New Zealand Fisheries, this document, from the New Zealand Ministry of Primary Industries, summarises the status of New Zealands fish stocks. The report finds that hoki and orange roughy have continued to increase…

The Asian region is a major supplier of fish products to the EU market. Over the period 2005-2010 in particular, the aquaculture sector in some Asian countries became an important producer as well as exporter of whitefish and shrimps. This article provides a s…

This report collates the currently available evidence on marine fisheries and reviews its completeness and robustness using a gap analysis for future decision making and support development of the Marine Management Organisations fisheries evidence programme.

Lethargic Crab Disease (LCD) has caused significant mortalities in the population of Ucides cordatus crabs in the Mucuri estuary in Bahia State, Brazil, and has brought social and economic problems to many crabharvesting communities that depend on this natural…

As part of the Chichester Harbour Oyster Partnership Initiative, this article by Lawrence Eagling and Antony Jensen, University of Southampton, analyses the reproductive success of oysters in Chichester Harbour, UK.

The Asian region is a major supplier of fish products to the EU market. Over the period 2005-2010 in particular, the aquaculture sector in some Asian countries became an important producer as well as exporter of whitefish and shrimps.This article provides a su…

In the present report, Olivier De Schutter, UN Special Rapporteur, identifies the challenges facing global fisheries and examines how the individuals most vulnerable to negative impacts (the residents of developing coastal and island countries, especially low …

Jun Qiang, Chinese Academy of Fishery Sciences, and Hong Yanga look at the interacting effects of water temperature and dietary protein levels on hematological parameters in Nile tilapia juveniles and mortality under Streptococcus iniae infection.