publication . Conference object . 2007

Toxicity of heavy metals to fish: an important consideration for sucessful aquaculture

Nnaji, J.C.; Okoye, F.C.;
Open Access English
  • Published: 01 Jan 2007
  • Publisher: Fisheries Society of Nigeria
Abstract
Heavy metals are toxic to man, animals and plants once safe limits are exceeded. Then ability to bio accumulate in plant and animal tissues makes them particularly hazardous. Heavy metals are toxic to all aquatic biota and cause high mortality of fish larva, fry, fingerling and adult fish. They accumulate in the gills, heart, liver, kidneys, brain, bones and muscles of fish. The physico-chemical forms of heavy metals determine their mobility, availability and toxicity to fish. These metals enter aquaculture systems through various means (polluted water, storage facilities, fish feed, atmospheric deposition, etc) and constitute a factor detrimental to successful ...
Subjects
free text keywords: Pollution, Aquaculture
Communities
Fisheries and Aquaculture Management
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Conference object . 2007
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