Effects of salinity on the juvenile crab physiology and agonistic interactions between two species of blue crabs, Callinectes sapidus and C. similis from coastal Louisiana

Autor:	William B. Stickle, Thomas H. Dietz, Heather J. Wyler
Rok vydání:	2007
Předmět:	Salinity Callinectes biology Ecology Decapoda Juvenile Carapace Aquatic Science biology.organism_classification Crustacean Ecology Evolution Behavior and Systematics Callinectes similis Predation
Zdroj:	Journal of Experimental Marine Biology and Ecology. 352:361-370
ISSN:	0022-0981
DOI:	10.1016/j.jembe.2007.08.013
Popis:	Callinectes sapidus and Callinectes similis are found in estuaries along the northern Gulf of Mexico. Juvenile C. sapidus are heavier at similar carapace widths than juvenile C. similis. Juvenile C. sapidus and C. similis exhibit similar patterns of hemolymph osmolality, oxygen consumption, lactic acid concentration, and renal filtration and secretory rates along constant and fluctuating salinity gradients. When similar sized juveniles were present, significantly more C. sapidus were preyed upon at 30 PSU but not at 5 PSU. Juvenile C. similis are more vulnerable to predation by adult C. sapidus at low salinity, this increased predation by adult C. sapidus on juvenile C. similis at 5 PSU may contribute to limiting the presence of C. similis to higher salinity water along estuarine gradients.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bd59f00d1e7c36fc54e1ce88c96514f0 https://doi.org/10.1016/j.jembe.2007.08.013 Zobrazit plný text záznamu Full Text from ScienceDirect