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Life history traits of the temperate mini-maximalist Idiosepius notoides, (Cephalopoda: Sepioidea)
Citation
Tracey, S and Steer, MA and Pecl, GT, Life history traits of the temperate mini-maximalist Idiosepius notoides, (Cephalopoda: Sepioidea), Journal of the Marine Biological Association of the United Kingdom, 83, (6) pp. 1297-1300. ISSN 0025-3154 (2003) [Refereed Article]
DOI: doi:10.1017/S0025315403008701
Abstract
Age, growth and maturation of the temperate 'mini-maximalist' Idiosepius notoides from Tasmania is described and compared with those of its tropical congener Idiosepius pygmaeus. Using statolith increment analysis, growth of I. notoides was best described by a power curve with a maximum age of 115 days recorded. Males have a shorter lifespan than females, however growth rates were similar between the sexes. Idiosepius notoides grows to a larger size than its tropical counterpart. Onset of maturity in I. notoides occurred at an age of approximately 68 days for males and 88 days for females compared to 45-60 days for I. pygmaeus. Size at onset of sexual maturity was analogous between the two species, with males mature at approximately 6.5 mm mantle length (ML) and females at 14.0 mm ML. Idiosepius notoides, like I. pygmaeus, is a small short-lived sepioid with significant gender dimorphism and the capacity to spawn multiple times throughout its short life. This research supports the concept of similar cephalopod species living longer and growing larger in cooler environments.
Item Details
Item Type: | Refereed Article |
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Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Population Ecology |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding Knowledge |
Objective Field: | Expanding Knowledge in the Environmental Sciences |
UTAS Author: | Tracey, S (Associate Professor Sean Tracey) |
UTAS Author: | Steer, MA (Dr Michael Steer) |
UTAS Author: | Pecl, GT (Professor Gretta Pecl) |
ID Code: | 28586 |
Year Published: | 2003 |
Web of Science® Times Cited: | 17 |
Deposited By: | TAFI - Marine Research Laboratory |
Deposited On: | 2003-08-01 |
Last Modified: | 2009-09-17 |
Downloads: | 0 |
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