Features

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 Gregory N. Whitis, Alabama Cooperative Extension System and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service - To be profitable, an aquaculturepond must be sited properly and designed for efficiency. An inac…

By Akvaforsk - Solveig van Nes of AKVAFORSK has found one of the key factors that influences the sexual development of halibut larvae. Since females grow significantly larger than males, farmers can now direct their production toward fewer males and higher pro…

Channel catfish are the most important species of aquatic animal commercially cultured in the United States. In this article – published on the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service – Thomas L. Wellborn from the Univ…

By The Health And Safety Executive - This publication gives advice on the design, construction and safe use of floating fish farm installations including fish pens or cages, walkways, gangways, vehicle ways,land access ways, shelters and associated equipment.

By the USDA, Foreign Agricultural Service - This report gives an overview of the current situation in the EU fishery sector, provides information on the EU's import policy and statistical data on EU fish catches, aquaculture,and imports and exports.

By Robert P. Romaire, W. Ray McClain, Mark G. Shirley and C. Greg Lutz, Louisiana State University and Published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service - Most crawfish produced in the United States is sold to t…

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.

By the European Commission - Concrete measures to improve the protection and welfare of animals over the next five years are outlined in a new Action Plan on the protection and welfare of animals, adopted by the Commission today. The Action Plan aims to ensure…

By Marley Beem, Oklahoma State University and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service - The outlook for aquaculture in this country is bright. Health-conscious consumers are increasing their consumptio…

By C. Greg Lutz, Extension Aquaculture Specialist, Louisiana State University Agricultural Center - A review of aquaculture industry publications over the past decade might suggest that much of the expansion in global production has been attributable to high-p…

Crawfish Production: Harvesting - Robert P. Romaire, W. Ray McClain and C. Greg Lutz and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service - Freshwater crawfish of the genus Procambarus are a valuable aquacultur…

By the Fish Vet Group - The spectre of Foot and Mouth disease (FMD) is still lives with us and it and its ramifications will be around for some considerable time to come- no matter what "officaldom" may (or not) say. It may have left the front pages of newspap…

Louis R. DAbramo, Cortney L. Ohs, Terrill R. Hanson and Jose L. Montanez and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service - Traditional pond culture of crawfish (Procambarus clarkii and P. zonangulus) is ex…

By John A. Hargreaves and Craig S. Tucker, Mississippi State University and published by the Southern Regional Agricultural Center and the Texas Aquaculture Extension Service - Dissolved oxygen concentration(DO) is considered the most important water quality v…

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…

By David Cox, the Fish Vet Group - Fungi are ubiquitous throughout nature and if left untreated many fungal infections in farmed and pet fish can be life threatening.

However Thai shrimp production has been on the decline in recent years. If most of the decline (10%) in 2011 was related to natural disasters like oods, the main culprit in 2012 has been the EMS/AHPND disease outbreak. is new disease resulted in massive mortal…

Louis A. Helfrich, Extension Specialist; Jim Parkhurst, Extension Specialist; and Richard Neves, Extension Specialist; Department of Fisheries and Wildlife Sciences, Virginia Tech - At times landowners may be confronted with serious water losses resulting from…

For more than two decades, fish farms in the Bet Shean Valley of Israel have cultured a local stock of tilapia derived from hybridizing blue tilapia (Oreochromis aureus) and Nile tilapia (O. niloticus), write Reuven Godel, Reshafim Fish Farm, Amitay Geva, Mini…

The majority of global fish stocks lack adequate data to evaluate stock status using conventional stock assessment methods. This poses a challenge for the sustainable management of these stocks, writes Thomas R. Carruthers et al, University of British Columbia…

This is a review by Hans Komen, Wageningen University, Netherlands and Trinh Quoc Trong, Research Institute for Aquaculture, Viet Nam, of the current developmental state of Nile tilapia selective breeding programs, most of which have focused mainly on growth r…

The advent of new legislation in Scotland to protect the marine environment is compelling fish farmers and marine specialists to adopt measures to prevent biofouling and the introduction of non-native species into Scottish waters.

Given the nutritional value and profile (comparability of amino acids, EFA, and micronutrients) of maggot meal (MM), this study, by Emilie Devic et al, University of Stirling, evaluates strategies for the substitution of fish meal (FM) by MM, different method…

All Tilapias are native to Africa, but have been distributed to every continent not covered in ice. The global tilapia farming industry currently produces 3.5 million tons which are worth almost $6 billion, over 80% of which is produced outside of Africa. In A…

NORWAY - A previously un-described granulomatous disease in Atlantic cod (Gadus morhua L) related to the presence of a Gram-negative, facultative intracellular bacterium belonging to the genus Francisella has been identified.

The FAO paper from the 14th session of the Sub-Committee on Fish Trade reviews the role fish plays in human nutrition and looks at the impact fish trade might have on food security and nutrition. Fish is recognized as an excellent source of protein but also pl…

A plentiful supply of yellow perch was once available in the US Great Lakes region, but that changed in the 1990s. Populations of this Midwest fish-fry favorite dropped dramatically due to the invasion of the zebra mussel, overfishing, and other factors.

Tilapia is globally recognized as one of the most important aquaculture species of the 21st century. Tilapia culture has expanded rapidly in a wide range of farming environments from extensive to intensive in both fresh and brackish water in Asia including Ban…

The performance of the aquafeed industry in Egypt is not well understood, as the value chain structure has not yet been mapped. This study aims to assess the status of the fish feed sector in Egypt, with an emphasis on: mapping and understanding fish feed valu…

New findings published by researchers at the New York University Polytechnic School of Engineering are helping to unravel the complex interplay between alcohol and social behavior and may lead to new therapies for mitigating the negative impacts of alcohol use…

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…

This study by Yukinori Mukai, International Islamic University Malaysia, and Leong Seng Lim, University Malaysia Sabah, examined the retinomotor responses and prey ingestion rates of 10-, 15-, 20- and 30-day-old Asian seabass Lates calcarifer under different l…

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…

Introduction Discussion of the current shrimp disease crisis focuses on the microbiology of pathogens and the regulations needed to limit their spread locally and across national boundaries (FAO 2008; Jones 2012; Lightner 2012; Reantaso 2012). In this study I …

BASIC PARAMETERS ON HANDLING OF AQUACULTURAL PONDS WATER REPLACEMENT Amount of oxigen dissolved Evaporation and filtering Water temperature Coloring Salinity Turbidity pH TEMPERATURE Water temperature shall be between 25 and 32°C, being the optimal between 29 …

Omer M. Yousif, Kumar K.M. Krishnankutty and Abdul Fatah Ali, Aquaculture and Marine Studies Center, Abu Al Abyad Island, Department of the President's Affairs, looked at the reproductive performance, growth and survival of wild and pond-reared giant tiger shr…

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,…

One of the most difficult problems in Atlantic salmon aquaculture has been to control sea lice (Lepeophtheirus salmonis and Caligus elongatus in the Northern Hemisphere and Caligus rogercresseyi in Chile), which may cause serious harm to aquaculture reared fis…

By Ccile BrugreFishery Planning Analyst, Food and Agriculture Organization of the United Nations Fisheries Department, Rome, Italy and Neil Ridler, Professor of Economics, University of New Brunswick - New Brunswick, Canada - Aquaculture production is expected…