Response to autotomy in anesthetized freshwater crab, Paratelphusa hydrodromous (Herbst)
Keywords:Paratelphusa hydrodromous, Amputation, Autotomy
To extend the knowledge of amputation and induction of autotomy, the freshwater crab Paratelphusa hydrodromous (Herbst) was chosen as a model system. Amputation of different legs of Paratelphusa hydrodromous (Herbst) was done in two conditions; normal and anesthetized crab. Autotomy of the amputated legs under normal condition was induced autotomy within seconds (1.6 to 37 seconds). However, the amputation conducted in ice cold anesthetized crab showed delayed autotomy in a wide range of time from 10.2 ± 0.83 minutes (cheliped) to 114.8 ± 4.3 minutes (2nd walking leg). The observations suggest that ice cold anesthesia lowers the signaling of pain to the brain and delays autotomy, the voluntary mechanism to escape from the predator/pain or frightened force.
Congdon, J.D., Vitt, L.J. & King, W.W. (1974). Geckos: adaptive significance and energetics of tail autotomy. Science, 184(4144): 1379–1380. https://doi.org/10.1126/science.184.4144.1379.
Kelehear, C. & Webb, J.K. (2006). Effects of Tail Autotomy on Anti-predator Behavior and Locomotor Performance in a Nocturnal Gecko. Copeia, 2006(4): 803–809. https://doi.org/10.1643/0045-8511(2006)6[803:EOTAOA]2.0.CO;2.
Davis, G.E., Baughman, D.S., Chapman, J.D., MacArthur, D. & Pierce, A.C. (1978). Mortality Associated with Declawing Stone Crabs, Menippe mercenaria. South Florida Research Center, Report T-522. 23 pp.
Bliss, D.E. (1960). Autotomy and regeneration. In: T.H. Waterman (Ed.), Physiology of the Crustacea, Vol. 1, Academic Press, New York, pp. 561-589.
Skinner, D.M., Kumari, S.S. & O'Brien, J.J. (1992). Proteins of the Crustacean Exoskeleton. American Zoologist, 32(3): 470–484. https://doi.org/10.1093/icb/32.3.470.
Mykles, D.L. (1992). Getting out of a Tight Squeeze—Enzymatic Regulation of Claw Muscle Atrophy in Molting. American Zoologist, 32(3): 485–494. https://doi.org/10.1093/icb/32.3.485.
Hopkins, P.M. (1993). Regeneration of Walking Legs in the Fiddler Crab Uca pugilator. American Zoologist, 33(3): 348–356.
Wheatly, M.G. (1996). An Overview of Calcium Balance in Crustaceans. Physiol. Zool., 69(2): 351–382. https://doi.org/10.1086/physzool.69.2.30164190.
Raja, P.V., Ravindranath, M.H. & Ramalingam, K. (1976). Studies on Autotomy in Crustaceans. II. Changes in Hemolymph Sugars of Shore Crab Ocypode platytarsis in Response to Autotomy and Bleeding Stress. Physiol. Zool., 49(4): 389-397. https://doi.org/10.1086/physzool.49.4.30155701.
How to Cite
This work is licensed under a Creative Commons Attribution 4.0 International License.