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<p><b>New page</b></p><div>[[File:Parapercis_colias_(Blue_cod).jpg|Parapercis colias (Blue cod)|thumb]] '''Blue cod''' (''Parapercis colias'') is a species of fish endemic to [[New Zealand]]. It is a member of the [[Pinguipedidae]] family, commonly known as the sandperch family. Blue cod is an important species both ecologically and economically, particularly in the South Island of New Zealand.<br />
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==Description==<br />
Blue cod are typically blue-green to blue-grey in color, with a pale belly. They can grow up to 60 cm in length and weigh up to 4 kg. Juveniles are often mottled in appearance, which provides camouflage against predators. The species exhibits sexual dimorphism, with males generally being larger and more brightly colored than females.<br />
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==Habitat==<br />
Blue cod are found in coastal waters around New Zealand, particularly around the South Island and the Chatham Islands. They inhabit rocky reefs and areas with sandy bottoms, usually at depths ranging from 1 to 150 meters. They are demersal fish, meaning they live and feed on or near the bottom of the sea.<br />
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==Diet==<br />
Blue cod are carnivorous and feed on a variety of marine organisms. Their diet includes [[crustaceans]], [[molluscs]], and small fish. They are known to be opportunistic feeders, often consuming whatever prey is available in their habitat.<br />
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==Reproduction==<br />
Blue cod have a unique reproductive system known as protogynous hermaphroditism, where individuals start life as females and can later change to males. Spawning occurs during the austral spring and summer months. Females lay eggs in nests made of algae or other materials, which are then fertilized by males.<br />
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==Fishing and Economic Importance==<br />
Blue cod is a popular target for both commercial and recreational fishing in New Zealand. The species is highly valued for its firm, white flesh, which is considered a delicacy. Fishing regulations, including size limits and catch quotas, are in place to ensure sustainable management of blue cod populations.<br />
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==Conservation==<br />
While blue cod populations are generally stable, they are subject to pressures from overfishing and habitat degradation. Conservation measures include marine reserves, fishing regulations, and habitat protection initiatives to ensure the long-term sustainability of the species.<br />
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==Related Pages==<br />
* [[New Zealand]]<br />
* [[Pinguipedidae]]<br />
* [[Crustaceans]]<br />
* [[Molluscs]]<br />
* [[Marine conservation]]<br />
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==Categories==<br />
[[Category:Fish of New Zealand]]<br />
[[Category:Pinguipedidae]]<br />
[[Category:Commercial fish]]<br />
[[Category:Marine fish]]<br />
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