LIFE HISTORIES OF INFAUNAL AMPHIPODS FROM SUBTIDAL SANDS OF MONTEREY BAY, CALIFORNIA

Members of the amphipod families Phoxocephalidae and Haustoriidae are small, mobile, efficient sand-burrowers. Three species are particularly dominant in the crustacean zone on subtidal sands of Monterey Bay. Life history traits of two phoxocephalids and one haustoriid characterize them as annual, u...

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Bibliographic Details
Published in:Journal of crustacean biology 1985-01, Vol.5 (4), p.635-649
Main Author: Slattery, Peter N
Format: Article
Language:English
Subjects:
Amphipoda
Biological and medical sciences
Biology
Crustacea
Crustaceans
Ecological life histories
Eggs
Female animals
Fundamental and applied biological sciences. Psychology
Haustoriidae
Instars
Invertebrates
Malacostraca
Male animals
Marine
Mating behavior
Phoxocephalidae
Physiology. Development
Sex ratio
Species
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Summary:Members of the amphipod families Phoxocephalidae and Haustoriidae are small, mobile, efficient sand-burrowers. Three species are particularly dominant in the crustacean zone on subtidal sands of Monterey Bay. Life history traits of two phoxocephalids and one haustoriid characterize them as annual, univoltine, and producing a few, large eggs. However, the two families differ in several significant ways: time of year that they reproduce, sex ratios, swimming behavior, and diet. These contrasts reflect greater specialization, including method of reproduction, in the haustoriids. These differences suggest that the phoxocephalids retain typical gammaridean amphipod reproductive methods which compromise their burrowing life-style through disadvantageous morphological and behavioral characteristics.
ISSN:0278-0372
1937-240X
DOI:10.1163/1937240X85X00443