Chemoreception in the blue crab, Callinectes sapidus
Journal Article
·
· Biol. Bull.; (United States)
The aims of the study were to observe the feeding behavior of the blue crab under laboratory conditions and select those components of the feeding repertoire that appeared to be most sensitive to the presence of sapid substances, utilize the selected behavioral components to determine the threshold concentration at which a food extract is detected, and examine the effects of food deprivation upon the detection threshold. Results showed that: (1) An increase in the rate of antennule flicking and gill bailing upon presentation of sea water solutions of a freeze-dried clam extract indicated detection of sapid substances by the blue crab, Callinectes sapidus. (2) The threshold concentration at which crabs detected the sapid solution was 10 (E-15) g/liter. Feeding behaviors were released at higher concentrations, 10 (E-1) to 10 (E-2) g/liter. (3) Food deprivation for six days lowered the threshold for feeding behaviors but did not affect the detection threshold.
- Research Organization:
- National Marine Fisheries Service, Highlands, NJ
- OSTI ID:
- 5207075
- Journal Information:
- Biol. Bull.; (United States), Journal Name: Biol. Bull.; (United States) Vol. 153:2; ISSN BIBUA
- Country of Publication:
- United States
- Language:
- English
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