The oxygen requirements of three fish species from the German Bight: cod Gadus morhua, plaice Pleuronectes platessa, and dab Limanda limanda
The survival of cod Gadus morhua, plaice Pleuronectes platessa, and dab Limanda limanda was determined in relation to ambient oxygen saturation at 8° C and 35% m salinity. Mortalit rates were observed in fish exposed to constant oxygen levels for 24h. First mortality occurred around 60 % oxygen satu...
| Published in: | Journal of Applied Ichthyology |
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| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
Wiley
1992
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| Subjects: | |
| Online Access: | https://oceanrep.geomar.de/id/eprint/42264/ https://oceanrep.geomar.de/id/eprint/42264/1/Scholz_et_al-1992-Journal_of_Applied_Ichthyology.pdf https://doi.org/10.1111/j.1439-0426.1992.tb00669.x |
| Summary: | The survival of cod Gadus morhua, plaice Pleuronectes platessa, and dab Limanda limanda was determined in relation to ambient oxygen saturation at 8° C and 35% m salinity. Mortalit rates were observed in fish exposed to constant oxygen levels for 24h. First mortality occurred around 60 % oxygen saturation in cod and around 30% oxygen saturation in dab and plaice. Below these thresholds mortality increased linearly with decreasing oxygen levels. If cod were infested with 1 or 2 individuals of Lernaeocera branchialis (Copepoda), their tolerance was significantly lower; under such circumstances the incipient lethal oxygen saturation was 66 %. |
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