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The larvae that hatch from eggs laid in fresh water that is not landlocked go to sea for three to four months and then returns to lakes. The larvae are planktonic and feed on zooplankton. | The larvae that hatch from eggs laid in fresh water that is not landlocked go to sea for three to four months and then returns to lakes. The larvae are planktonic and feed on zooplankton. | ||
[ | [[File:Gobiomorphus cotidianus Common bully.JPG|frameless|upright 2.25]] | ||
[[File:Gobiomorphus cotidianus Common bully-004.JPG|frameless|upright 2.25]] | |||
A bully photographed in the upper shallows of Lake Kaniere, Westland.<br /> | A bully photographed in the upper shallows of Lake Kaniere, Westland.<br /> | ||
[ | [[File:Bully.JPG|frameless|upright 2.25]] | ||
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/ | Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/ | ||
Latest revision as of 11:40, 24 September 2019
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Eleotridae
Genus: Gobiomorphus
Species: G. cotidianus
Binomial name: Gobiomorphus cotidianus
Common name: Common bully
Gobiomorphus cotidianus is one of the most widespread and well-known native fish. It is a species of sleeper goby endemic to New Zealand. Being amphidromous they can be found in marine, fresh and brackish waters. This species can reach a length of 15 centimetres. It feeds on a wide variety of benthic invertebrates.
Sea-going populations occur in river and streams near the coast, and land-locked populations have become established in many of our lakes where they are an important prey species for trout and eels. In rivers, they mainly inhabit still or slow-flowing waters and thus are probably one of the most likely bullies to be seen.
Eggs are laid on the undersides of hard substrates (wood, rock) in both lakes and rivers and the egg patches are defended by a male.
The larvae that hatch from eggs laid in fresh water that is not landlocked go to sea for three to four months and then returns to lakes. The larvae are planktonic and feed on zooplankton.
A bully photographed in the upper shallows of Lake Kaniere, Westland.
Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/
