Biometric variability of New Zealand sea lion (Phocarctos hookeri) pups at the Auckland Islands and utility for predicting demographic rates /

Roberts, Jim (Fishery scientist)

Biometric variability of New Zealand sea lion (Phocarctos hookeri) pups at the Auckland Islands and utility for predicting demographic rates / Pup biometrics Auckland Islands NZ sea lions J.O. Roberts, M.W. Cawthorn, S.J. Childerhouse, K. Clemens-Seely. - Wellington, New Zealand : Fisheries New Zealand, Tini a Tangaroa, 2021. - 1 online resource - New Zealand aquatic environment and biodiversity report, no. 255 1179-5352 ; . - New Zealand aquatic environment and biodiversity report no. 255 .

"April 2021."

This project explored the relationships between pup biometrics and some key demographic rates of New Zealand sea lions at the Auckland Islands. Strong patterns were estimated for pup mass and condition since 1980, indicative of changes in nutritional status. Positive correlations were obtained between pup mass and first-year survival and, more tenuously, between male minus female pup mass and annual pupping rate. Both these relationships may have utility for future population assessment.

9781991003508


FISHERIES
NEW ZEALAND

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