Hybrid catfish offer productionadvantages over channel catfish.Trials have shown the greatersurvival and faster growth of thehybrids allows shorter productioncycles. The hybrids alsohave better feed conversion andfillet yield, writes Nagaraj G. Chatakondi, USD…
Having previously looked at the effectiveness and fitting of square mesh panels, Mike Montgomerie,Gear Technologist at Seafish, discusses the use of vertical andhorizontal separator panels, andcoverless trawls.
In the last in a series ofarticles, Mike Montgomerie,Gear Technologist at Seafish, discusses the use of flexibleand rigid grids. With the increasingimportance of social, economicand political factors as a bigpart of the issue Seafish geartrial work over the la…
Low market prices challenge the Chinese tilapia industry as it seeks to become sustainable, writes Dr Liu Liping and Dr Zhang Zongfen from Shanghai Ocean University, and Dr Francis Murray and Dr David Little from the University of Stirling. Taken from the Glob…
This overview report addresses opportunities for the development of the Pacific Islandsmariculture sector in general terms. More specific analysis of opportunity in particularcountries is presented in the five accompanying country reports (Cook Islands, Fiji,P…
At Global Aquaculture Alliances recent GOAL 2011 conference in Santiago, Chile, Executive Director Wally Stevens discussed in his welcoming remarks the five major challenges between us and our objective of responsibly doubling aquaculture production in a decad…
Salmon farmers see record prices in early 2011 drop to money losing levels in no time. 2012 outlook negative from mid year as production is expected to increase by up to 15 per cent, according to Globefish.
Production of trout in the UK is increasing, according to a study by the Levercliff Associates, writes Patrick Smith, Chairman of the British Trout Association.
In the fourth of a series ofarticles for Fishing news,Mike Montgomerie, GearTechnologist at Seafish, continues by examining theoptions for fitting squaremesh panels.
Probiotic bacteria are a sustainable approach to modulate the gut microflora towards a favorable composition, which is of utmost importance since the digestive system of fish and shrimp is an important entrance point for infections.
Daniel Lee, Best Aquaculture PracticesStandards Coordinator with theGlobal Aquaculture Alliance looks at how aquaculture certification helps buyers and builds trust. Taken from the Global Aquaculture Advocate, a Global Aquaculture Alliance publication.
In this third article in the series, MikeMontgomery from Seafish, starts tolook at specific devices,starting with squaremesh panels, to see howeffective they have proved to bein various fisheries.
With the reproductivity of farmed fish a major concern for the aquaculture industry, the Genetics and Reproduction Group at theInstitute of Aquaculture, Stirling, Scotland, has carried out researchto tackle common problems including sexual maturation impacts o…
Research by Thomas Hecht from Rhodes University, South Africa reviews feeds and fertilisers for sustainable aquaculture development in sub-Saharan Africa (SSA). The study highlights the lack of capacity and knowledge to do with feed technology, a need for more…
The pangasius industry in Viet Nam faced difficulties of supply, with increased production costs, disease problems and high interest rates for bank loans. However, imports during the first half of 2011 increased to the US market but declined to the EU, writes …
In the second of aseries of articles,Mike Montgomerie,gear technologist atSeafish, gives hisperspective on theissue of discards andthe work that Seafishand the industryhave been doing tohelp develop newselective technologiesand net-basedfishing activitiesto re…
The economic importance of sandfish to poor rural Asian communitiestriggered a collaborative, multinational research effort to advance breedingand rearing techniques when fish numbers started to decline, writes Catherine Norwood, Australian Centre for Internat…
The Farm Animal Welfare Council (FAWC) is currently working to update a 1996 report which looks at thewelfare of farmed fish generally, andthe welfare of farmed fish at slaughter. The study, of which an outline is set out below, will assess whether the welfare…
In the first of a seriesof articles, MikeMontgomerie, gear technologistat Seafish, giveshis perspective on theissue and the work that Seafish,along with industry, has beendoing to help develop new selectivetechnologies and net-basedfishing activities to reduce…
Sound scientific advice is not available for the majority of demersal fish species caught by Scottish and Shetland fishing vessels. This can have a serious impact on the economies of these stocks when policy making, according to a study by Ian Napier, NAFC Mar…
The recent report by McKinsey and Company 'Design for Sustainable Fisheries' takes some important steps towards meeting the challenge of integrating what we understand about the biology of fished species and the economic behaviour of those who fish. It is vita…
Michael Phillips, from The World Fish Centre and Rohana Subasinghe, from FAO look at trends, future prospects and adaptation of small-scale shrimp farmers in the global markets, to ensure that the continue to provide important economic and social benefits. Tak…
Australia's fisheries are amongst the best managed in the world and they are without doubt sustainable, according to a report by Dr Ray Hilborn, Professor of Aquatic and Fisheries Sciences,University of Washington and Dr Bob Kearney, Emeritus Professor in Fish…
Fish farming in Nigeria is currently a very lucrative business and it is mainly boosted by the continuous rise in the demand for catfish, reports the Nigerian Tribune.
Students, small-business owners and professors convened earlier this month in a Campbell Hall lecture room at the University of Virginia to watch bluefin tuna get hauled into boats on a movie screen as they sampled local trout and sustainable barramundi hors d…
Tilapia breeding is profitable only if it is solely focused on male populations. Hormonal inversion methods currently used to produce these populations have, however, many drawbacks. CIRAD has been investigating a genetic approach for several years and just di…
Aquaculture provides the world with about 53 million tons of fish each year and over seven per cent of the animal protein people consume. It includes carp, Tilapia (a freshwater fish found in Africa), Pangasius (a Mekong Delta catfish), Atlantic Salmon, other …
50 per cent of fishermen would not give up their livelihood in the face of drastically declining catches according to research led by the University of East Anglia (UEA). A new report, published by PLoS ONE, challenges previously held notions about poverty and…
Using effluent from fish farming ponds to feed plants while retreating the water naturally is the basic principle of aquaponics. It is also behind an ambitious project called Apiva. It involves the Lyce de la Canourgue college in Lozre, France, ITAVI, CIRAD in…
Amoebic gill disease (AGD) is a gill disorder found in marine fish, but primarily affecting salmon. At the end of 2011 the disease was recognised in Scotland, after the industry suffered a number of losses. Charlotte Johnston, TheFishSite editor speaks with Fi…
Forthe last three years, the University ofArkansas at Pine has partnered withThe University of Tennessee andTexas A&M University on a projectfunded by the USDAs SouthernRegional Aquaculture Center to developcroakers as an inland, low-salinitymarine baitfis…
With detection of viral hemorrhagic septicemiavirus (VHSV) in the Great Lakes in 2005, the USDAAnimal and Plant Health Inspection Service (APHIS)has been involved in nationwide surveillance for thisdisease, writes Carolyn Gunn, DVM, Assistant State Fish Pathol…
This report presents estimates of the financial and economic performance of two key Commonwealth fisheries: the Northern Prawn Fishery (NPF) and the Bass Strait Central Zone Scallop Fishery (BSCZSF). Research by the Australian Bureau of Agricultural and Resour…
Research at the University of Iowa looks at methods to protect the Pacific white shrimp against white spot syndrome virus (WSSV). Double stranded RNA was synthesized in vitro withsequences corresponding to portions of the WSSV genomeand were injected into shri…
Indoor hatching of fathead minnow eggs may be an option for producers seeking evenaged fry to grow large volumes of relatively uniform minnows, although the economics of this alternative method remain to be determined, writes Nathan Stone, Extension Fisheries …
Todays "locavore" movement with its emphasis on eating more locally-produced food is a natural fit for fruits and vegetables in nearly every region, but few entrepreneurs have dared to apply the concept to fish farming, says aquaculture researcher Andy Danylch…
