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For many fishermen and fish farmers, especially in Africa, smoking fish is one of the most important and efficient ways of preserving fish when refrigeration is not available, writes Lucy Towers, TheFishSite Editor.

A.M. Abdelhamid et al, Egypt, look at the possible effects of feeding Nile tilapia, silver carp, common carp and African catfish with dried treated sewage. Part one focuses on growth performance, feed utilisation and chemical composition.

Half-century-old roads connecting portions of Bahamian islands while fragmenting the tidal waters below leads to rapid and interesting changes in the fish living in those fragmented sections, according to a new study from North Carolina State University.

Little work dealing with the evaluation of aquaculture system sustainability has so far been undertaken on a global and comparative basis. Moreover, such work is mostly based on very unbalanced approaches in terms of the dimensions of sustainable development t…

The purpose of this research by David C. Love et al, Johns Hopkins University, US, was to document the production methods, crop and fish yields, and profitability of commercial aquaponics in the United States (US) and internationally.

Labeo rohita may be able to utilize the non-gelatinized corn starch based diet more efficiently and being economical it spares the protein based cost effective feed, according to research by Mahwish Qamer et al, University Faisalabad, Pakistan.

Organic aquaculture has been implemented in Turkey since 2010. As organic aquaculture represents a new practice area and sufficient promotional efforts and governmental support is not available, satisfactory levels have not been achieved yet in this sector. In…

Growth of hyaline cartilage is achieved either by chondrocyte division interstitial type of growth or by perichondrial cell differentiation of mesenchymal cells to differentiated chondrocytes which deposit successive circumferential layers of cartilage matrix …

Fish meal has historically been the protein source of choice in aquatic feeds, but global supplies have reached a plateau making it less available and more expensive. As a consequence, the use of cheaper proteins made from processed plant proteins, byproducts …

Research conducted by Susan Laramore et al, Harbor Branch Oceanographic Institute at Florida Atlantic University, studied whether fresh U. lactuca harvested weekly from a land-based integrated multi-trophic aquaculture system could be utilized as a nutritional…

Aquatic animals have a much closer relationship to their external environment than terrestrial animals and are thus more susceptible to pathogens in their environment.

The use of blue green algae Spirulina in aquaculture has several potential advantages over the production of fish, writes Nasreen M. Abdulrahman and Hawkar J. Hamad Ameen, University of Sulaimaniya.

Nonnative species that form novel habitats strongly affect ecosystem processes. The effects of these ecosystem engineers can be both positive and negative but the mechanisms behind their effects are not well described. In this study Jeffrey T. Wright et al, Un…

Researchers report that some stickleback fish fathers can have long-term effects on the behavior of their offspring. The most attentive fish dads cause their offspring to behave in a way that makes them less susceptible to predators. These behavioral changes a…

The net movement of individuals from marine reserves to the remaining fishing grounds is known as spillover and is frequently used to promote reserves to fishers on the grounds that it will benefit fisheries. Here Colin D. Buxton et al, University of Tasmania,…

AQUAPLAN 20142019 is Australias third national strategic plan for aquatic animal health. It outlines the priorities to strengthen Australias arrangements for managing aquatic animal health, and to support sustainability, productivity, and market accessand ulti…

Consumer awareness of sustainable aquaculture production has led to increased interest in certification for sustainable aquaculture practices. In contrast to common belief, this certification encompasses a broader scope than just environmental issues. It also …

Proliferative kidney disease is a widespread disease of farmed and wildsalmonid populations in Europe and North America, caused by the myxozoan parasite Tetracapsuloides bryosalmonae. Ahmed Abd-Elfattah et al, University of Veterinary Medicine, Austria, evalua…

Jan G. Davidsen and his graduate students are spies. They use listening stations and special tags they attach to their subjects to track their movements. They follow their subjects winter and summer, day and night.They are in pursuit of secrets and are relentl…

Eyeless Mexican cavefish show no metabolic circadian rhythm in either light and dark or constant dark conditions, according to a study published September 24, 2014 in the open-access journal PLOS ONE by Damian Moran from Lund University, Sweden, and colleagues…

This publication is the annual National Marine Fisheries Service (NMFS) yearbook of fishery statistics for the United States. The report provides data on U.S. recreational catch and commercial fisheries landings and value.

To test whether digestion affected swimming performance in an active forager and whether the possible effects varied with temperature, Jing Peng et al, Chongqing Normal University, investigated the critical swimming speed (Ucrit) and the resting and active met…

Although the effects of fish density on the performance of fish have been widely studied, there has been little work done into the effect of cage size on seabass performance, said Athanasios Samaras speaking at Aquaculture Europe 2014, writes Lucy Towers, TheF…

Due to nitrate accumulation during nitrification and low water-exchange rates in recirculating aquaculture systems (RAS), nitrate levels can build up. Hendrik Monsees has therefore investigated the effect that exposose to high nitrate concentration has on juve…

Fish are not silent creatures. Just like the terrestrial world, theres a veritable symphony of sound echoing under the sea.

Fish is especially rich in essential omega-3 long-chain polyunsaturated fatty acids and micronutrients, including bioavailable calcium, iron and zinc. Fish features prominently in the diet of most, especially poor, Zambians. Despite this, its significance in t…

Pole-and-line fishing is considered to be a sustainable method for catching tuna. However, the reliance on baitfish, which are commonly very variable in their availability, has the potential to introduce unsustainable elements to the fishery, write Arun Padiya…

Ectoparasites are key agents responsible for causing diseases in farmed fish. The Nile tilapia, in particular, has been shown to be susceptible to infestation by trichodinids and monogeneans, write Santiago Benites de Pdua, Aquivet Sade Aqutica, Roney Nogueira…

Salmon lice Lepeophtheirus salmonis Kryer may affect survival and growth ofanadromous salmonids through physiological stress and/or behavioural changes. Using acoustic telemetry tracking, Karl ystein Gjelland et al, Norwegian Institute for Nature Research, inv…

Two real-time reverse transcription polymerase chain reaction (rRT-PCR) assaysunder consideration for deployment to multiple testing laboratories across the USA were evaluated for diagnostic sensitivity and specificity on tissue homogenates obtained from natur…

The International Pole & Line Foundation (IPNLF) and its Indonesian stakeholders are working on improving the management of Indonesian pole-and-line fisheries and the associated bait fisheries.

Knut Wiik Vollset and Bjrn Torgeir Barlaup, Uni Research - Environment, LFI, Norway, report on the first observation of a winter epizootic of salmon lice Lepeophtheirus salmonis Kryer on sea trout Salmo trutta Linnaeus in a Norwegian fjord with intensivesalmon…

In an effort to understand the molecular basis of adaptation in vertebrates, BBSRC-funded researchers have sequenced the genomes and transcriptomes of five species of the African cichlid fish and uncovered a variety of features that enable the fish to thrive i…

In line with the level of investment, changes in concepts with regards to sanitary and health management can ensure stable and efficiency in production. Risk reduction from diseases requires continuous diagnosis of pathogens, adoption of biosecurity measures a…

Eight laboratories worked collectively to evaluate 4 real-time RT-PCR (rRT-PCR) protocols targeting viral hemorrhagic septicemia virus (VHSV) being considered for deployment to a USA laboratory testing network, write Janet V. Warg et al, National Veterinary Se…

The European Commission has published proposals for a regulation of the EuropeanParliament and the Council establishing specific conditions relating to fishing for deep-sea stocks in the North-East Atlantic and provisions for fishing in international waters of…

This report, written by Dr R. Charles Anderson for the International Pole and Line Foundation reviews information on interactions between cetaceans (whales and dolphins) and tuna fisheries in the western and central Indian Ocean.

This FAO technical paper compiles the state of knowledge on seafood safety and quality with the aim to provide a succinct yet comprehensive resource book to seafood quality and safety managers, including topics on emerging issues such as new pathogens, the imp…

Disease problems on shrimp farms may be partly driven by an interaction between management practices that cause inbreeding in small hatcheries and the amplification by inbreeding of susceptibility to disease and environmental stresses, writes Roger W. Doyle, P…

This review focuses on the recent advances in research on genetic relationships between Bonamia isolates, geographical distribution, susceptible host species, diagnostics, epizootiology, host parasite interactions, and disease resistance and control of this gl…