Growth of red gurnard (Teleostei: Triglidae) from Pegasus bay,Canterbury, New Zealand |
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| Authors: | D J Staples |
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| Institution: | 1. Department of Zoology , University of Canterbury , New Zealand;2. Tokyo University of Fisheries , Konan 4–5‐7, Minato‐ku, Tokyo, Japan |
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| Abstract: | Growth of the red gurnard, Chelidonichthys kumu (Lesson and Garnot), from Pegasus Bay, Canterbury, was measured during 1966–67. Otoliths were used as an indicator of fish growth; mean length‐at‐age data were obtained from back‐calculated fish lengths at the time of formation of successive annual rings in the otoliths. Growth in length was found to be adequately expressed by the von Bertalanffy growth equation : lt = 52.0 1 ‐ e‐0.406 (t‐o.291)] (where lt is the fork length in cm at age t). The length: weight relationship was: w = 78.56 × 10‐4 l 3.072 (where w is the weight in grams). From this relationship, growth in weight was described by the equation: wt = 1469 1 ‐ e‐0.406 (t‐0.291)]3. |
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| Keywords: | feeding interspecific relationships hoki Macruronus novaezelandiae southern blue whiting Micromesistius australis javelin fish Lepidorhynchus denticulatus ling Genypterus blacodes smooth rattail Coelorinchus aspercephalus silverside Argentina elongata small‐scaled notothenid Notothenia microlepidota predation competition resource partitioning Campbell Plateau |
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