Physiological Responses of the Rock Crab Cancer irroratus (Say) to Environmental Hyperoxia. I. Acid-Base Regulation

1987 ◽  
Vol 60 (4) ◽  
pp. 398-405 ◽  
Author(s):  
Michèle G. Wheatly
1978 ◽  
Vol 35 (10) ◽  
pp. 1385-1388 ◽  
Author(s):  
R. W. Elner ◽  
A. B. Stasko

A pair of rock crabs, Cancer irroratus, in mating embrace an hour after being placed in a laboratory tank, was observed intermittently until ecdysis of the female and copulation of the pair, and then until escape of the female 27 d after ecdysis. When separated from the mating embrace, the hard-shelled female sought out the male. Approach of female ecdysis was indicated by protrusion of a soft spherical bulge at the rear of the epimeral line. Details of the immediate pre- and postcopulatory behavior were observed continuously from 26 min before to 150 min after copulation. The female was first noted separated from the male 7 h after copulation. Periods of separation increased until mating interactions were completely abandoned 5 d after copulation. A second pair subsequently observed confirmed the above. Mating embrace was also observed between a hard-shelled male and a hard-shelled female that already had sperm plugs. Key words: Crustacea, crabs, copulation, molt indicators


1977 ◽  
Vol 34 (5) ◽  
pp. 730-734 ◽  
Author(s):  
L. I. Crawshaw

Teleost fishes possess a central nervous system thermoregulatory mechanism remarkably similar to that of other vertebrates. Inputs from peripheral and anterior brainstem thermosensitive elements are integrated to effect appropriate thermoregulatory responses. The integrated output signal from the thermoregulatory center also appears to provide an input to the respiratory system. Short-term deviations from a given temperature alter respiratory requirements, produce acid–base imbalance, and cause disturbances in fluid–electrolyte regulation. Acclimation to a given temperature involves changes that counteract these disturbances. Key words: fish, temperature change, behavioral responses, physiological responses, temperature regulation


2011 ◽  
Vol 43 (4) ◽  
pp. 509-517 ◽  
Author(s):  
Luc André Comeau ◽  
Rémi Sonier ◽  
John Mark Hanson

2017 ◽  
Vol 13 (2) ◽  
pp. 198-209 ◽  
Author(s):  
Óskar Sindri Gíslason ◽  
Jónas P. Jónasson ◽  
Snæbjörn Pálsson ◽  
Jörundur Svavarsson ◽  
Halldór P. Halldórsson

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