Unusual Climbing Behavior By Callinectes Sapidus Rathbun (Decapoda, Brachyura)

Unusual Climbing Behavior By Callinectes Sapidus Rathbun (Decapoda, Brachyura) 128 REFERENCES CITED BERNARD, H. M., 1905. Porites of the Indo-Pacific region. Catalogue of the madreporarian corals in the British Museum (Natural History), 5 (2) (1): i-vii, 1-303, pls. 1-35. DANCE, S. P., 1966. Shell collecting, an illustrated history: 1-344, textfigs. 1-31, pls. 1-35. (Faber and Faber, London). DARWIN, C., 1854. Balanidae, Verrucidae. A monograph on the sub-class Cirripedia: i-viii, 1-684. pls. 1-30. (Ray Soc., London). Ross, A., 1962. The littoral balanomorph Cirripedia. Results of the Puritan-American Museum of Natural History Expedition to Western Mexico, 15. Amer. Mus. Novitates, 2084: 1-44, figs. 1-24. ZULLO, V., 1961. A new subgenus and species of coral-inhabiting barnacle from the Gulf of California. Veliger, 4 (2): 71-75, text figs. 1, 2, pl. 17. Received for publication 29 November 1966. UNUSUAL CLIMBING BEHAVIOR BY CALLINECTES SAPIDUS RATHBUN (DECAPODA, BRACHYURA) BY WALTER ABBOTT Gulf Coast Research Laboratory, Ocean Springs, Mississippi, U.S.A. The blue crab, Callinecte.r saPidus Rathbun, is one of the commonest large crustaceans along the Gulf Coast of the United States. Determinate-type behavior by this crab has been recorded previously by Gunter (1954). I wish to report an instance of deliberate climbing behavior by a mature male crab. On July 19, 1966, while supervising construction of some levees in an estuary and salt marsh adjacent to the campus of Gulf Coast Research Laboratory, I observed the crab in question methodically ascending a clump of salt grass (Spar- tina sp. ) . The large chelipeds were employed to grasp bundles of grass blades in a "hand-over-hand" fashion, insofar as this is anatomically possible for Callinectes. The animal climbed 35 to 40 cm above water level, and might have ascended higher, had not the sudden arrival of a levee-worker apparently startled it so that it released its grip and fell back into the water. The levee-worker, who spends considerable time in the marsh and bayou areas, reports having observed this climbing activity on several occasions. x REFERENCE GUNTER, G., 1954. Sagacity of a crab. Science, 120 (3109): 188-189. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Unusual Climbing Behavior By Callinectes Sapidus Rathbun (Decapoda, Brachyura)

Crustaceana , Volume 13 (1): 128 – Jan 1, 1967
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Publisher
BRILL
Copyright
© 1967 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216x
eISSN
1568-5403
D.O.I.
10.1163/156854067X00170
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Abstract

128 REFERENCES CITED BERNARD, H. M., 1905. Porites of the Indo-Pacific region. Catalogue of the madreporarian corals in the British Museum (Natural History), 5 (2) (1): i-vii, 1-303, pls. 1-35. DANCE, S. P., 1966. Shell collecting, an illustrated history: 1-344, textfigs. 1-31, pls. 1-35. (Faber and Faber, London). DARWIN, C., 1854. Balanidae, Verrucidae. A monograph on the sub-class Cirripedia: i-viii, 1-684. pls. 1-30. (Ray Soc., London). Ross, A., 1962. The littoral balanomorph Cirripedia. Results of the Puritan-American Museum of Natural History Expedition to Western Mexico, 15. Amer. Mus. Novitates, 2084: 1-44, figs. 1-24. ZULLO, V., 1961. A new subgenus and species of coral-inhabiting barnacle from the Gulf of California. Veliger, 4 (2): 71-75, text figs. 1, 2, pl. 17. Received for publication 29 November 1966. UNUSUAL CLIMBING BEHAVIOR BY CALLINECTES SAPIDUS RATHBUN (DECAPODA, BRACHYURA) BY WALTER ABBOTT Gulf Coast Research Laboratory, Ocean Springs, Mississippi, U.S.A. The blue crab, Callinecte.r saPidus Rathbun, is one of the commonest large crustaceans along the Gulf Coast of the United States. Determinate-type behavior by this crab has been recorded previously by Gunter (1954). I wish to report an instance of deliberate climbing behavior by a mature male crab. On July 19, 1966, while supervising construction of some levees in an estuary and salt marsh adjacent to the campus of Gulf Coast Research Laboratory, I observed the crab in question methodically ascending a clump of salt grass (Spar- tina sp. ) . The large chelipeds were employed to grasp bundles of grass blades in a "hand-over-hand" fashion, insofar as this is anatomically possible for Callinectes. The animal climbed 35 to 40 cm above water level, and might have ascended higher, had not the sudden arrival of a levee-worker apparently startled it so that it released its grip and fell back into the water. The levee-worker, who spends considerable time in the marsh and bayou areas, reports having observed this climbing activity on several occasions. x REFERENCE GUNTER, G., 1954. Sagacity of a crab. Science, 120 (3109): 188-189.

Journal

CrustaceanaBrill

Published: Jan 1, 1967

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