Observations on the shoaling behaviour of cod ( Gadus callarias ) in deep water relative to daylight
It is well known that vision is the main physical factor governing the formation and maintenance offish shoals, and that, in general, shoals break up when the light intensity falls below a certain level. Breder (1929, 1942), Newman (1876), Parr (1927, 1931), and others, have shown this by laboratory...
| Published in: | Journal of the Marine Biological Association of the United Kingdom |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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Cambridge University Press (CUP)
1956
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| Online Access: | http://dx.doi.org/10.1017/s0025315400010237 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315400010237 |