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An analysis of the growth based on the size and age distributions of the hawksbill sea turtle inhabiting Cuban waters

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Please use this identifier to cite or link to this item:http://doi.org/10.14943/jjvr.48.2-3.129

Title: An analysis of the growth based on the size and age distributions of the hawksbill sea turtle inhabiting Cuban waters
Authors: KOBAYASHI, Mari Browse this author
Keywords: age distribution
Cuba
growth
hawksbill turtle
size distribution
Issue Date: 30-Nov-2000
Publisher: The Graduate School of Veterinary Medicine
Journal Title: Japanese Journal of Veterinary Research
Volume: 48
Issue: 2-3
Start Page: 129
End Page: 135
Abstract: The first costal scute (C1) collected from 2,749 hawksbill turtle (Eretmochelys imbricata ) captured in Cuban waters in 1993 and 1994 were analyzed to determine their body size and age distributions. The C1 width (C1W) was converted to the straight carapace length (SCL) using a formula, SCL=4.3527 (C1W)^<0.8484>, to examine its body size distribution. The SCL ranged from 51.3 to 96.1 cm with 68.8 cm of mean and 68.6 cm of median. Ages of captured turtles estimated from the C1 surface patterns were ranged from 3. 3 to 61. 5 years old with 15.8 years of mean and 14.5 years of median. A growth function of van Bertalanffy, M(t)=A (1-Be^<-kt>), was applied to determine the relationship between the age and body size (SCL). A formula, SCL=80.4 (1-0.663e^<-0.118(Age)>), was derived and indicated a slowdown in the growth after about 14 years old. The maturation age and the rate of sexually matured Cuban hawksbill turtles were also discussed based on these results.
Type: bulletin (article)
URI: http://hdl.handle.net/2115/2853
Appears in Collections:Japanese Journal of Veterinary Research > Volume 48, Number 2-3

Submitter: 獣医学部図書室

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