Analysis on Global Eel Aquaculture Conditions
نویسندگان
چکیده
منابع مشابه
Aquaculture: satisfying the global appetite.
Three thousand years ago, farmers in China began growing fish in freshwater ponds and a thousand years later began cultivating mollusks along coastlines. For centuries, aquaculture—the farming of fish, shellfish, and aquatic plants—remained mostly a small-scale subsistence activity providing relatively low yields. But during the past few decades, aquatic farming has abruptly undergone a startli...
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Aquaculture contributed 43 per cent of aquatic animal food for human consumption in 2007 (e.g. fish, crustaceans and molluscs, but excluding mammals, reptiles and aquatic plants) and is expected to grow further to meet the future demand. It is very diverse and, contrary to many perceptions, dominated by shellfish and herbivorous and omnivorous pond fish either entirely or partly utilizing natur...
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Since the late 1980s, wild salmon catch and abundance have declined dramatically in the North Atlantic and in much of the northeastern Pacific south of Alaska. In these areas, there has been a concomitant increase in the production of farmed salmon. Previous studies have shown negative impacts on wild salmonids, but these results have been difficult to translate into predictions of change in wi...
متن کاملAmerican eel, Anguilla rostrata, growth in fresh and salt water: implications for conservation and aquaculture
Growth of American eels, Anguilla rostrata (Lesueur), sampled in saltwater bays and adjacent freshwater ponds in the southern Gulf of St. Lawrence, Canada, was estimated by otolith annulus back-calculation, and related to salinity of growth habitat as determined using otolith strontium:calcium ratios. Eels resident in salt water grew on average in length 2.2 times faster than freshwater residen...
متن کاملGlobal Stability Conditions on the Plane
The paper considers price adjustment on the plane and derives global stability conditions for such dynamics. First, we examine the well-known Scarf Example, to obtain and analyze a global stability condition for this case. Next, for a general class of excess demand functions, a set of conditions is identified which guarantee not only convergence to some equilibrium but also robustness of these ...
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ژورنال
عنوان ژورنال: International Journal of Marine Science
سال: 2015
ISSN: 1927-6648
DOI: 10.5376/ijms.2015.05.0017