Physiological stress responses in the edible crab, Cancer pagurus, to the fishery practice of de-clawing

L. Patterson, J.T.A. Dick, Robert Elwood

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

We examined physiological stress responses in the edible crab, Cancer pagurus, subjected to the commercial fishery practice of manual de-clawing. We measured haemolymph glucose and lactate, plus muscular glycogen and glycogen mobilisation, in three experiments where the crabs had one claw removed. In the first, crabs showed physiological stress responses when 'de-clawed' as compared to 'handled only over the short term of 1-10 min. In the second, de-clawing and the presence of a conspecific both increased the physiological stress responses over the longer term of 24 h. In the third, de-clawing was shown to be more stressful than 'induced autotomy' of claws. Further, the former practice caused larger wounds to the body and significantly higher mortality than the latter. Since the fishery practice is to remove both claws, the stress response observed and mortality data reported are conservative.
Original languageEnglish
Pages (from-to)265-272
Number of pages8
JournalMarine Biology
Volume152
Issue number2
DOIs
Publication statusPublished - Aug 2007

ASJC Scopus subject areas

  • Aquatic Science

Fingerprint Dive into the research topics of 'Physiological stress responses in the edible crab, Cancer pagurus, to the fishery practice of de-clawing'. Together they form a unique fingerprint.

  • Cite this