NDLI: Antennule shape and body size of Bosmina: key factors determining its vulnerability to predacious Copepoda

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Antennule shape and body size of Bosmina: key factors determining its vulnerability to predacious Copepoda

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Antennule shape and body size of Bosmina: key factors determining its vulnerability to predacious Copepoda

Content Provider	Springer Nature Link
Author	Sakamoto, Masaki Hanazato, Takayuki
Copyright Year	2008
Abstract	Cyclopoid copepods are common in lakes and ponds, and they have a significant predation impact on the communities of the small zooplankton species. To reduce the predation risk, some cladoceran zooplankters develop protuberant (defensive) morphologies in the presence of the copepods. In the case of the small cladoceran Bosmina, they elongate their appendages (antennule and mucrone) and change the antennule morphotype. However, information about the effectiveness of these defensive devices against copepod predation is still insufficient. In our study, to find the compositive effects of these appendages on the vulnerability of Bosmina, we exposed two bosminid species (B. longirostris and B. fatalis) of different body sizes and with appendages of different lengths and shapes to copepod (Mesocyclops) predation. The experiment revealed that the shape of the antennule is a main factor determining the bosminid’s vulnerability to copepod predation and indicated that the protection of the opened ventral carapace must be a key strategy by which Bosmina avoids copepod predation.
Starting Page	27
Ending Page	34
Page Count	8
File Format	PDF
ISSN	14398621
Journal	Limnology
Volume Number	9
Issue Number	1
e-ISSN	1439863X
Language	English
Publisher	Springer Japan
Publisher Date	2008-02-27
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Bosmina Copepod predation Vulnerability to predation Morphological defense Freshwater & Marine Ecology Environment Ecology
Content Type	Text
Resource Type	Article
Subject	Ecology Aquatic Science Water Science and Technology

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