Effects of salinity and temperature onCorophium volutatorandC. arenarium(Crustacea: Amphipoda), with particular reference to distribution
✍ Scribed by A. Mills; J. D. Fish
- Book ID
- 104755389
- Publisher
- Springer-Verlag
- Year
- 1980
- Tongue
- English
- Weight
- 832 KB
- Volume
- 58
- Category
- Article
- ISSN
- 0025-3162
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✦ Synopsis
The responses of the post-embryonic stages of Corophium volutator (Pallas) and C. arenariurn Crawford to the combined effects of salinity and temperature show that gravid females have a wider tolerance than nongravid adult females which in turn are more tolerant than adult males. C. volutator is more tolerant of low salinity (2 to 10~ than C. arenarium, but the latter is more tolerant of salinities above 45o/o0 . The embryos of C. volutator develop normally and hatch at lower salinities and temperatures than those of C. arenarium, in which successful development was recorded at higher temperatures. Females undergoing a pre-copulatory moult failed to lay eggs below salinities of 3~176 (C. volutator) and 10~ (C. arenarium), but in both species the lowest salinity at which all females moulted and laid eggs was 200/00 . The results are discussed in relation to the distribution of both species.