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Evaluating Methods for Setting Catch Limits in Data-limited Fisheries
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...
Evaluation of Using Some Probiotics in Diets of African Catfish
During the last three decades, a great attention was paid towards aquaculture as an attempt to fulfill the gap between the increased population and their demands from animal protein, write A.M. Abdelhamid,Al-Mansoura University, Mohamed H. Ahmed and...
Reducing Cannibalism Among Newly Hatched African Catfish Fry by Grading
Research by A. M. Abdelhamid and Ahmed Ismail Mehrim, Al-Mansoura University and I.A.Radwan and A.F.Abdelhamid, Al-Hamoul Fish Hatchery looks at the possibility of reducing cannibalism among newly hatched catfish (Clarias gariepinus) fry by grading....
Eight Proposals to Help Advance High Seas Recovery
The Global Oceans Commission sets out eight proposals to help advance high seas recovery in its latest report 'From Decline to Recovery A Rescue Package for the Global Ocean'....
Conservation, Economic Growth and the use of Genetically Improved Tilapia in Africa
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....
On-Farm Selection for Improved Tilapia Growth: Reshafim Fish Farm Case Study
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,...
White Feces Syndrome of Shrimp Arises from Transformation, Sloughing and Aggregation of Hepatopancreatic Microvilli into Vermiform Bodies Superficially Resembling Gregarines
Accompanying acute hepatopancreatic necrosis disease (AHPND) in cultivated Asian shrimp has been an increasing prevalence of vermiform, gregarine-like bodies within the shrimp hepatopancreas (HP) and midgut. In high quantity they result in white fecal...
Bacterial languages: Communication and Coordination?
Several decades ago bacteria were primarily considered as separate entities of unicellular organisms that do not interact with each other. However, this view has changed and many bacterial species are now known to coordinate behaviour at a multicellular...
Meeting Biofouling and Biosecurity Challenges in Aquaculture
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....
Probiotics: An Essential Tool in Intensive Shrimp Aquaculture
As aquaculture develops, the industry faces several challenges related to its environmental impact. The application of beneficial bacteria (probiotics) is not only associated with gut health (feed probiotics), but also with bioremediation that improves...
A Sheltered Start Breeds Evolutionary Success: Why the Urge to Find ‘Nemo’ has Helped Fish Diversify
New species are more likely to evolve if parents guard their offspring than if they allow them to drift away on ocean currents to make it on their own in the big deep blue....
Effects of Two Environmental Best Management Practices on Pond Water, Effluent Quality and Growth of Nile Tilapia
The trajectory of aquaculture growth in sub-Saharan Africa has necessitated closer attention to the use of environmental best management practices (BMPs). Two BMPs in particular, water reuse and floating feeds, are being promoted for adoption by pond...
Biomin Supporting the Thai Shrimp Industry
Since the last decade Thailand has been the world’s leading shrimp exporter with annual foreign exchange earnings of more than US$3 billion. In 2010, Thailand produced 600,000 tonnes of marine shrimp. The strong growth observed in the industry in the...
Minimising and Managing the Impact of Fisheries on Marine Food Webs
Ecosystem-based fishery management (EBFM), also referred to as the ecosystem approach to fisheries (EAF), considers all the living and non-living components of a marine community when managing fisheries, reports the Sustainable Fisheries Partnership (SFP)....
Water Quality Monitoring and Management for Catfish Ponds
Any fish farmer that wants to record a high survival of fish and better growth in record time in their ponds must endeavour to pay good attention to pond water quality, writes Lanre Ogunsina....
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