Salmonids

By Jane Jordan, TheFishSite Editor. With reports of a significant escape of farmed salmon in Scotland's West Loch, Roag, hitting the headlines recently, the debate about the potential damage that escaped farmed fish can do to wild stocks has returned with veng…

By Nicky Holmyard, FAO Globefish. Peruvian trout producers are set to benefit from a new FAO-funded project that will introduce a management and policy alignment tool to help rationalise and develop the entire aquaculture sector.

By Dave Cox, Fish Vet Group - Malachite green was something of a cure all for farmed fish. Used successfully for preventing and treating fungal infections and ectoparasites, such as those causing white spot disease, it was also effective in controlling interna…

By Gunnar Knapp, Cathy A. Roheim, James L. Anderson and extracted from The Great Salmon Run: Competition Between Wild and Farmed Salmon, released by TRAFFIC

By Peter A. Bisson, Research Fish Biologist, Forestry Sciences Laboratory, USA and published by the U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station.

By the USDA's National Agricultural Statistics Service - This full-text annual report contains the number of trout operations, grower sales, and fish losses for selected states; includes number, weight, and value produced by type (foodsize, stocker, fingerling…

By Gunnar Knapp, Cathy A. Roheim, James L. Anderson and extracted from The Great Salmon Run: Competition Between Wild and Farmed Salmon, released by TRAFFIC

By Prof Alan Teale, University of Stirling; Prof Chris Secombes, University of Aberdeen and Dr Glen Sweeney, Cardiff University and published by the Biotechnology and Biological Sciences Research Council (BBSRC) - Research carried out under BBSRC's ExploitingG…

By Martin Krkosek, Mark A. Lewis, Alexandra Morton, L. Neil Frazer, and John P. Volpe - The continuing decline of ocean fisheries and rise of global fish consumption has driven aquaculture growth by 10% annually over the last decade.

By David Cox, the Fish Vet Group - "You don't want to eat that - it's farmed!! How often have we heard that phrase? So-called discerning gourmets pontificating on the relative demerits, rarely (if ever) merits of farmed salmon versus the real thing.

Extensive economic losses may be experienced in aquaculture as a consequence of disease outbreaks, according to scientists from Fiskeriforskning.

By Trine Ytrestyl, AKVAFORSK - This thesis focuses on factors that influence the bioavailability of carotenoids primarily in salmonid fishes. Atlantic cod (Gadus morhua) was used in one experiment to study uptake in a white-fleshed species.

By Fiskeriforskning - Winter ulcer causes great economic loss to salmon farmers, especially in North Norway. Fish with sores have less appetite and at slaughter, sores or scars reduce quality. The disease is likely the result of both production and a bacterial…

By Intervet - SRS (a.k.a. Salmon Rickettsial Syndrome or Piscirickettsiosis or Coho salmon septicaemia or Huito disease) is considered to be the most important disease problem in the Chilean salmon farming industry, with economic losses of over US$100 million …

By Fiskeriforskning - Blue whiting (Micromesistius poutassou) is a small, lean cod fish of high importance as rawmaterial for fish meal production in Norway. Fish meal produced from blue whiting generates lower growth and feed efficiency in salmon, halibut and…

Safely transporting fish from the hatchery to the pond and then on to the market is a very important part of aquaculture, says the University of Auburn.

By Dave Cockerill, the Fish Vet Group - In recent years spinal deformity has become an increasingly important condition for salmon producers and especially processors. Some populations are virtually unaffected, but the incidence of deformity can be above 30%, …

From The USDA's APHIS - These guidelines apply to the following farmed species of fish: salmonids and cyprinids. The guidelines may also apply to other fish species. The length of time fish spend on a transport should be as short as possible.

In a new book, The Benefits of Fish Meal in Aquaculture Diets, RD Miles and FA Chapman, from the University of Florida, explain the value of fishmeal in feeds for fish and shrimp.

Michael McGee and Charles Cichra review some of the most important considerations relating to fingerling purchasing, transporting, and stocking.

By Katheleen F. Ladewig and Michelle Morat and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service - The rainbow trout has always been known as a great sport fish. But, in recent times, along with its sport connot…

By Jeffrey M. Hinshaw and Skipper L. Thompson, North Carolina State University and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service.

By Jeffrey M. Hinshaw, Lindsay E. Rogers and James E. Easley, North Carolina State University and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service.

By Jeffrey M. Hinshaw, North Carolina State University and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service.

By Jeffrey M. Hinshaw, North Carolina State University and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service.

By Arild Kollevaag, Commercial Operations Dept., Intervet Norbio AS - In recent years, between 160 and 170 million salmon and rainbow trout have been vaccinated each year in Norway. The vast majority of these were vaccinated by injection (intraperitoneal) with…

By Pete Southgate, the Fish Vet Group - In the summer of 2005 many UK trout farmers experienced serious outbreaks of eye fluke infestation which resulted in severe pathology in affected fish and consequent losses. The eye fluke - frequently Diplostomum spathac…

NORWAY - Harald Takle, research fellow at AKVAFORSK, has identified several genes that are active when deformities occur at the egg stage in farmed salmon. He recently presented his findings in his doctoral dissertation at the Norwegian University of Life Scie…

Positioning of sea cages at sites with high water current velocities expose the fish to a largely unknown environmental challenge. In this study David Johansson et al, Institute of Marine Research, Norway, observed the swimming behaviour of Atlantic salmon (Sa…

Several indices were examined to assess the physical condition of wrasse stocked on Atlantic salmon, Salmo salar, farms as cleaner fish, and included examination of eye condition, snout erosion, skin hemorrhaging, and erosion and splitting of dorsal, pectoral,…

By adjusting water discharges in ways designed to boost salmon productivity, officials at a dam in central Washington were able to more than triple the numbers of juvenile salmon downstream of the dam over a 30-year period, according to a study published in th…

Collection and Submission of Samples for Fish-Kill Investigation and Toxic-Substance Analysis - By Robert A. Pierce, Extension Fish and Wildlife Specialist; Thomas W. May, National Biological Survey, National Fisheries Contaminant Research Center and V. Charle…

By Janet Raloff and published by Science News Online - Aquaculture - farming fish for our dinner tables - is a big and growing international industry. Because many of the tastiest and most-profitable farmed fish are carnivores, their prepared diets usually inc…

By the USDA, Foreign Agricultural Service - The European Commission (EC) has published a proposal concerning the animal welfare of farmed fish to be adopted at the November 2005 meeting of the Standing Committee of the European Convention for the Protection of…