Cold water

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 Fiskeriforskning - For a long time, vibriosis was the most serious bacterial disease in farmed cod, but now other diseases also result in significant mortality.

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…

By Jon Weldon and published by North Atlantic Fisheries College - The Atlantic cod (Gadus morhua) has been identified as a species with considerable potential for intensive farming in northern Europe and Canada.

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…

TEXAS - The Gulf Marine Institute of Technology (GMIT), an IRS approved non-profit research institute, has been trying to initiate aquaculture in the Gulf of Mexico since 1995 and has been involved in a "duel with the titans" to convince current Lt. Governor a…

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,…

Increases in atmospheric carbon dioxide drive accompanying changes in the marine carbonate system as carbon dioxide enters seawater and alters ocean pH. As such changes do not occur in isolation, and other environmental factors have the potential to modulate t…

Low oxygen zones in coastal and open ocean ecosystems have expanded in recent decades, a trend that will accelerate with climatic warming. Christopher J. Gobler et al, Stony Brook University, US, experimentally assessed the consequences of hypoxic and acidifie…

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…

Introduction Marine protected areas (MPAs) have received increasing attention as tools in fisheries management and conservation. However, examples of replicated experiments that sampled organismal density before and after establishment of MPAs at sites both in…

A genetic linkage map has been constructed for Atlantic halibut on the basis of 258 microsatellites and 346 AFLPs. Twenty-four linkage groups were identified, consistent with the 24 chromosomes seen in chromosome spreads. The total map distance is 1562.2 cM in…

Aquaculture Outlook Report - October 2005 - By U.S.D.A., Economic Research Service - This article is an extract from the October 2005: Aquaculture Outlook Report, highlighting Global Aquaculture Industry data.

By David Cox, the Fish Vet Group - The Veterinary Health Plan (VHP) has been used for several years as part of good farming practice in many terrestrial animal production systems and forms the basis of several herd and flock health schemes.

By Pete Southgate, the Fish Vet Group - While oxygen and ammonia levels are often viewed, rightly, as critical to fish health and performance, carbon dioxide tends to be ignored and very few aquaculture facilities regularly monitor CO2 levels. This is partly d…

By Alasdair H McVicar, Garien Aquaculture and Fish Health Consultants Ltd - There are serious inadequacies in the paper many of which could be attributable to mathematicians analysing numerical data without adequate attention being given to the reality and com…

By Jeffery A. Foran, Midwest Center for Environmental Science and Public Policy, David O. Carpenter, Institute for Health and the Environment, University at Albany, M. Coreen Hamilton, AXYS Analytical Services Ltd, Barbara A. Knuth, Department of Natural Resou…

Presented by Canadian agencies and organizations currently undertaking aquaculture research in Canada - Commercialization of cod aquaculture in Atlantic Canada has taken a significant step forward with two research projects currently underway in Newfoundland.

By the USDA's National Agricultural Statistics Service - This full-text annual report by NASS contains the number of trout operations, grower sales, and fish losses for selected states during 2004.

By DuPont Animal Health Solutions - Now that salmon and trout eggs are near hatching, farmers will be getting hatching trays and first feeding troughs ready. As this signals a potential increase in the risk of infection, one of the key requirements is to thoro…

By Aquamedia - Welcome to Aquatour, a virtual tour of European fish farming. Aquatour takes you across Europe to see what fish are reared, how and where fish are farmed and to meet the people who work in this dynamic and developing sector. The 5 farms included…

For her doctorate, Dr Janicke Nordgreen has studied nociception and pain in teleost fish. Her conclusion is that it is very likely the fish feel pain, according to the Norwegian School of Veterinary Science.

As the global average temperature increases and CO2 within the ocean begins to reach saturation the ability of the ocean to absorb carbon will alter significantly, writes J. P. Hickey, School of Natural and Built Environs, University of South Australia.

A new report from the Joint Marine Programme (JMP), 'Feeding the Fish', reveals that fish feed manufacturers are using threatened fish stocks to supply the Scottish aquaculture industry with salmon feed. Scotland is responsible for approximately 90% of all UK …

By the National Marine Fisheries Service - This document examines the potential of Atlantic salmon farming in Puget Sound to impose adverse impacts on the Puget Sound chinook salmon (Oncorhynchus tshawytscha) and Hood Canal summer-run chum salmon (O. keta) evo…

By the National Fisheries Institute - This article looks at the facts surrounding the farmed Atlantic Salmon.

By Otto E. Langer R.P. Bio, Director of Marine Conservation, David Suzuki Foundation - Despite early attempts to farm salmon in British Columbias marine environment, the industry did not take hold until some 20 years ago. Many looked upon this new industry as …

CANADA - The latest anti-aquaculture assault by activist Alexandra Morton in a journal article alleging a link between sea lice and salmon farms continues a well-documented pattern of exaggeration and misleading results, says a grass roots group.

By the Environmental Media Services - This report by the Environmental Media Services raises its concerns and opinions on the impact of Salmon Farming in the Environment.

This article looks at the life history and habitat characteristics of the Atlantic halibut. By Luca M. Cargnelli, Sara J. Griesbach, and Wallace W. Morse, National Marine Fisheries Service.

By M A. Preece and P V. Mladenov - Comparisons of growth and mortality were made over 12 months for the New Zealand abalone Haliotis iris Martyn 1784 (blackfoot paua), fed two artificial diets (Coast Biologicals and Makara) and cultured in three offshore grow-…

By Salmon of the Americas - This report by SOTA looks at Flame retardants (PBDEs), how they compare to other environmental contaminants and it also discusses critical questions such as how PBDE's enter the environment; how they move into and behave within biot…

By Salmon of the Americas - Much has been said recently about the need to alter feeds in farmed salmon to reduce contaminant levels. While this has just been "discovered" by some outside our industry, and offfered by them as a "quick fix," it's not news to sal…