BONY FISH
"The bony fishes are the most diverse group
of vertebrates. About 25,000 species are known, but scientists
believe thousands more remain to be discovered. Fishes are important
members of food chains in both marine and freshwater ecosystems,
and they have developed an amazing variety of life styles and
body forms. Commercial populations of marine fishes are under severe
threat from over fishing. Thousands of species inhabiting the
world's coral reefs are also endangered because of over fishing
and the use of poisons and explosives such as dynamite. In freshwaters
many species have become extinct because of loss of habitat
or from the introduction of exotic species. Fishes provide humanity
with countless benefits, particularly as a major source of food
for millions of people. It is therefore critical that every
effort be made to protect their habitats and prevent over exploitation."
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| DR. JOEL CRACRAFT, CURATOR, DEPARTMENT OF ORNITHOLOGY |
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KNOWN SPECIES
24,000 to 25,000
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SIZE RANGE
1 centimeter to 4.5 meters
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WHERE THEY LIVE
In fresh waters and oceans
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ECOLOGICAL ROLES AND HUMAN USES
Predators, herbivores • Key members of
aquatic food chains, as predators and recyclers of nutrients
• Used by humans as food, as a source of fertilizer and
animal feed, as pets, and as a source of medicines
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