Premium
Age and growth of the tiger shark Galeocerdo cuvier off the east coast of Australia
Author(s) -
Holmes B. J.,
Peddemors V. M.,
Gutteridge A. N.,
Geraghty P. T.,
Chan R. W. K.,
Tibbetts I. R.,
Bennett M. B.
Publication year - 2015
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.12732
Subject(s) - biology , east coast , fishery , zoology
Total lengths ( L T ) at age and growth rates for south‐west Pacific Galeocerdo cuvier were estimated from vertebral growth‐band counts of 202 sagitally sectioned centra from 112 females (71–430 cm L T ), 79 males (72–351 cm L T ) and 11 of unknown sex. Captive growth data were also examined to complement vertebral age estimations. The sexes combined modelled growth coefficient ( k = 0·08) was smaller than previously reported for G. cuvier populations elsewhere. Split‐band and narrow banding patterns were identified as potential sources of age underestimation in this species.