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In Bonavista Bay, Newfoundland, juvenile cod (Gadus morhua) (age-group-0 and-1) were found to move into shallow water at night, where they mostly rested near the bottom. This nocturnal inshore migration was not associated with feeding, as stomach contents data suggested that feeding takes place main...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.617.2613 http://journal.nafo.int/J13/keats.pdf |
| Summary: | In Bonavista Bay, Newfoundland, juvenile cod (Gadus morhua) (age-group-0 and-1) were found to move into shallow water at night, where they mostly rested near the bottom. This nocturnal inshore migration was not associated with feeding, as stomach contents data suggested that feeding takes place mainly during the day, with little or no feeding at night. Most prey were planktonic, even in age-group-1 cod. This contrasted with earlier studies in Conception Bay, Newfoundland where age-group-1 cod were mainly obtaining benthic prey. These results suggested that juvenile cod predation on benthic invertebrates was likely to be patchy in space and time. Results are discussed in view of previous knowledge of the dietary and activity patterns of juvenile cod from elsewhere. |
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