Autotomy in Blue Crab (Callinectes sapidus Rathbun) Populations: Geographic, Temporal, and Ontogenetic Variation
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چکیده
منابع مشابه
Autotomy in Blue Crab (Callinectes sapidus Rathbun) Populations: Geographic, Temporal, and Ontogenetic Variation.
Blue crab (Callinectes sapidus Rathbun) populations were examined at four sites in Chesapeake Bay and three additional sites along the southeastern Atlantic coast and Gulf of Mexico; the aims were to assess the incidence of limb autotomy and to determine whether injury patterns varied temporally, geographically, and ontogenetically. These data, which include four years of information from one s...
متن کاملConcurrent Signals and Behavioral Plasticity in Blue Crab (Callinectes sapidus Rathbun) Courtship.
Behavioral flexibility and behavioral regulation through courtship signals may both contribute to mating success. Blue crabs (Callinectes sapidus) form precopulatory pairs after courtship periods that are influenced by female and perhaps male urine-based chemical signals. In this study, male and female crabs were observed in 1.5-m circular outdoor pools for 45 min while the occurrence and seque...
متن کاملMolecular indicators of hypoxia in the blue crab Callinectes sapidus
Occurrence of hypoxia in estuarine waters is increasing, and recovery of impacted estuaries is slow. Detection of early effects of hypoxia is needed for timely remedial action to be taken. Here we examine the use of hypoxia-responsive gene and protein expression profiles in the blue crab Callinectes sapidus as early indicators of impacts of hypoxia. We cloned 23 potential hypoxiaresponsive gene...
متن کاملGILL Na, K-ATPase AS A FUNCTION OF SIZE AND SALINITY IN THE BLUE CRAB, Callinectes sapidus RATHBUN
......................................................................................................................iii ACKNOWLEDGMENTS.................................................................................................. iv DEDICATION .................................................................................................................... v LIST OF FIGURES................
متن کاملSexual Competition Among Male Blue Crab, Callinectes sapidus.
Experiments and field data on blue crab, Callinectes sapidus, from mid-Chesapeake Bay between 1991 and 1994 were used to test whether large males have advantages over small males in accessing females and in sperm competition. In the field, large males were paired more often, especially with large, more fecund females. However, the variance in the relationship between male and female size in mat...
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ژورنال
عنوان ژورنال: The Biological Bulletin
سال: 1991
ISSN: 0006-3185,1939-8697
DOI: 10.2307/1542342