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Responses of hermit crabs to hemolymph from conspecifics and heterospecific crustaceans
Title
Responses of hermit crabs to hemolymph from conspecifics and heterospecific crustaceans.
Creator
Baechler, Patricia Joann., Florida Atlantic University, Brooks, W. Randy
Abstract/Description
Previous studies indicate that hermit crabs may use the blood or hemolymph from dying crabs to locate the soon-to-be-vacated shells. In this study, I determined and characterized the responses of hermit crabs to hemolymph from various crustaceans. Hermit crabs tested included members of the Diogenidae: Dardanus venosus, Clibanarius tricolor, C. antillensis, C. vittatus, and Calcinus tibicen; and Paguridae: Pagurus longicarpus and P. annulipes. Test odor sources included the previously...
Show morePrevious studies indicate that hermit crabs may use the blood or hemolymph from dying crabs to locate the soon-to-be-vacated shells. In this study, I determined and characterized the responses of hermit crabs to hemolymph from various crustaceans. Hermit crabs tested included members of the Diogenidae: Dardanus venosus, Clibanarius tricolor, C. antillensis, C. vittatus, and Calcinus tibicen; and Paguridae: Pagurus longicarpus and P. annulipes. Test odor sources included the previously mentioned hermit crabs plus seven additional odors, including three non-anomuran crustaceans. Most significant responses to hemolymph were to species within the same family. In several cases, the strongest responses were to conspecifics or congenerics. These results show clearly that hermit crabs in general use chemicals from other hermit crabs as cues for finding new shells. These results also show that the shell a crab occupies influences its response to odors, illustrating the role of context in these interactions.
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Date Issued
1996
PURL
http://purl.flvc.org/fcla/dt/15354
Subject Headings
Hermit crabs, Hemolymph, Crustacea
Format
Document (PDF)
A study of steady state and kinetic regulation of chloride ion and osmotic pressure in hemolymph of oysters, Crassostrea virginica, exposed to tri-n-butyltin
Title
A study of steady state and kinetic regulation of chloride ion and osmotic pressure in hemolymph of oysters, Crassostrea virginica, exposed to tri-n-butyltin.
Creator
Bokman, Elizabeth, Laughlin, R. B., Jr., Harbor Branch Oceanographic Institute
Date Issued
1989
PURL
http://purl.flvc.org/FCLA/DT/3333173
Subject Headings
Crassostrea virginica, American oyster, Hemolymph, Trialkyltin Compounds, Osmotic Pressure, Chlorides
Format
Document (PDF)