Gjøkvatn revisited: repeated visual observations of plankton swarms in a subarctic forest lake
Abstract Distinct swarms of Bosmina longispina (Leydig, 1860) (Crustacea: Cladocera) were visually observed and described in Gjøkvatn, a Norwegian forest lake at 69°N, in 1969 and again in 1996 and 2021. The repeated observations after many years show that Bosmina swarms occur regularly in the lake....
| Published in: | Journal of Crustacean Biology |
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| Main Author: | |
| Format: | Article in Journal/Newspaper |
| Language: | English |
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Oxford University Press (OUP)
2022
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| Online Access: | http://dx.doi.org/10.1093/jcbiol/ruac011 https://academic.oup.com/jcb/article-pdf/42/1/ruac011/42692124/ruac011.pdf |
| Summary: | Abstract Distinct swarms of Bosmina longispina (Leydig, 1860) (Crustacea: Cladocera) were visually observed and described in Gjøkvatn, a Norwegian forest lake at 69°N, in 1969 and again in 1996 and 2021. The repeated observations after many years show that Bosmina swarms occur regularly in the lake. The swarming is likely to be an anti-predation behaviour against the predatory cladoceran Polyphemus pediculus (Linnaeus, 1761). |
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