US pushes fish farming into deep water

Integrated livestock-fish farming systems Integrated livestock-fish farming systems

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Fish in deep-water coral habitats.

DAVID MALAKOFF’S ARTICLE “U.S. ASKED TO act immediately to protect deep-sea corals” (News of the Week, 2 April, p. 31), reporting on a petition to the U.S. government by the advocacy group Oceana, suggests that fish species found among deep-water corals are under threat unless this habitat is protected. Most would agree that the destruction of habitats that are several thousands of years old is...

Carotenoids in ornamental fish farming

      The aquaculture industry has grown dramatically in recent years, with a multimillion-dollar market. There are a variety of freshwater fish, marine fish, mollusks, and ornamental fish cultivated in this industry. The pigment and coloring of ornamental fish are important characteristics for marketing. In edible fish, carotenoids are responsible for the pigmentation of body tissue, while in ...

Sea-cage Fish Farming and Declines of Wild Fish

It has often been observed that after sea-cage fish farming begins in a coastal area, nearby wild fish populations steadily or precipitously decline due to elevated levels of pathogens and parasites. Such declines can be understood using three methods, in increasing level of mathematical difficulty: (1) an intuitive approach based on the inverse-square law of radiation applied to parasite trans...

Precolumbian Fish Farming in the Amazon