An annual profile of growth in the otoliths of immature Notothenia coriiceps Richardson in relation to the environment at Signy Island, Antarctica

• Published in: Antarctic Science
• Main Authors: Ashford, Julian R., White, Martin G.
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Cambridge University Press 1995
• Subjects: Signy Island; Antarc*; Antarctic Science; Antarctica
• Online Access: http://nora.nerc.ac.uk/id/eprint/515405/; https://doi.org/10.1017/S0954102095000484

Scanning electron microscope and image analysis techniques were used to construct a profile of otolith growth from June 1987–June 1988 in immature Notothenia coriiceps. Growth was found to fluctuate seasonally with a large decrease between August and late November 1987. Examination of stomach fullness showed that fish continued to feed during winter. Increases in absolute light levels and sea temperature during spring were found to coincide approximately with increasing growth. Conclusive evidence distinguishing between hypotheses for limitation of growth either by seawater temperature or by resource availability was not found