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Elevated CO2 Affects Embryonic Development and Larval Phototaxis in a Temperate Marine Fish
As an effect of anthropogenic CO2 emissions, the chemistry of the world’s oceans is changing. Understanding how this will affect marine organisms and ecosystems are critical in predicting the impacts of this ongoing ocean acidi?cation, write Elisabet...
Salt Stratification Determines the Fate of Fish Stocks in the Baltic Sea
In the Baltic Sea, two cod stocks evolve independently. Also the juveniles of two economically important flatfish species, flounder and plaice, live there within limited space. This is possibly due to the irregular distribution of water masses of different...
Effect of Different Sources and Levels of Some Dietary Biological Additives on:III- Body Composition of Nile Tilapia Fish
In part three of three, A.M. Abdelhamid, Mansoura University, Egypt, aims to investigate the effect of dietary graded levels of Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on the chemical composition and histology of all-males mono-sex...
Developing Ultraviolet Illumination of Gillnets as a Method to Reduce Sea Turtle Bycatch
Fisheries bycatch of marine animals has been linked to population declines of multiple species, including many sea turtles. John Wang et al, University of Hawaii, examined the effectiveness of illuminating gillnets with ultraviolet (UV) light-emitting...
Early Exposure of Bay Scallops to High CO2 Causes a Decrease in Larval Shell Growth
Ocean acidification has a variable impact on the growth and survival of marine invertebrates. Larval stages are thought to be particularly vulnerable to environmental stressors, and negative impacts of ocean acidification have been seen on fertilization...
Gambia Fisheries Sector: Trade, Value Addition and Social Inclusiveness - with a Focus on Women
This report from the United Nations conference on trade and development looks at trade, value addition and social inclusiveness in the Gambian fisheries sector, with a focus on women....
Effect of Different Sources and Levels of Some Dietary Biological Additives on: II- Feed Utilization by Nile Tilapia Fish
In part two of three, A.M. Abdelhamid, Mansoura University, Egypt, aims to investigate the effect of dietary graded levels of Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on feed utilization by Nile tilapia fish for 16 weeks. ...
Strategic Review of African Aquaculture Feeds
Sub-Saharan Africa (SSA) aquaculture production needs to grow by 270 per cent to satiate fish demand. In order to meet this demand, many factors have to be considered. This paper, written by Lee Cocker and commissioned by NEPAD through the University...
Influence of Food Supply on the Response of Olympia Oyster Larvae to Ocean Acidification
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...
Adjusting Water Discharge Can Boost Salmon Productivity
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...
Biosecurity on the Farm – Guidelines & Resources for Developing a Biosecurity Plan
Aquatic farmers face enormous pressure from native and exotic disease-causing organisms, or pathogens. Infection and disease can invade from multiple sources–water, wild fish or shellfish, newly-introduced farmed fish or shellfish, contaminated equipment,...
Risk Factors Associated with Increased Mortality of Farmed Pacific Oysters in Ireland during 2011
The Pacific oyster, Crassostrea gigas, plays a significant role in the aquaculture industry in Ireland. Episodes of increased mortality in C. gigas have been described in many countries, and in Ireland since 2008, write Tracy A. Clegg et al, UCD Centre...
Current Fishery Statistics of the United States 2012
This publication, released in 2013, is a preliminary report for 2012 on commercial and a final report for recreational fisheries of the United States with landings from the US territorial seas, the US Exclusive Economic Zone (EEZ), and on the high seas....
Effect of Different Sources and Levels of some Dietary Biological Additives on Growth Performance and Production Economy of Nile Tilapia
In part one of three, A.M. Abdelhamid, Mansoura University, Egypt, aims to investigate the effect of dietary graded levels of Aqua Superzyme, Garlen Allicin, and Diamond V (Original XPC) on the growth performance and economic production of Nile tilapia...
Ocean Acidification and Responses to Predators: Can Sensory Redundancy Reduce the Apparent Impacts of Elevated CO2 on Fish?
Previous studies have documented that exposure to elevated Carbon dioxide (CO2) causes impaired antipredator behavior by coral reef fish in response to chemical cues associated with predation. However, whether ocean acidification will impair visual recognition...
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