Reproduction of the round goby (Neogobius melanostomus) under controlled conditions
Journal Title: Biuletyn Instytutu Morskiego - Year 2018, Vol 33, Issue 1
Abstract
Learning mechanisms determining fish reproduction are particularly beneficial in the case of experimental work on juvenile forms of fish making research independent of the season of the year. This paper describes the reproduction method of the round goby, Neogobius melanostomus, under controlled conditions. This species is not native to the ichthyofauna of the Gulf of Gdańsk and was discovered here for the first time in 1990. In the case of pre-seasonal reproduction of the round goby, the first spawning took place 5 weeks after the beginning of thermal stimulation. On the other hand, artificial reproduction of the fish caught in the spring was possible after only a week of being kept in a temperature of 17-19°C. The spawn incubation period ranged from 17 to 22 days, depending on the temperature. For natural spawning, the period from spawning to hatching was 18-19 days, at a constant temperature of 20°C.<br/><br/>
Authors and Affiliations
Tomasz Kuczyński
Keywords
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- EP ID EP412037
- DOI 10.5604/01.3001.0012.7455
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