Podrobná bibliografie
| Název: |
Rapid prey switching of juvenile snapper (Chrysophrys auratus) in response to fluctuating visibility. |
| Autoři: |
Campbell, Jessica L.1 (AUTHOR) jessica.campbell04@gmail.com, Taylor, Richard B.1 (AUTHOR) |
| Zdroj: |
New Zealand Journal of Marine & Freshwater Research. Dec2025, Vol. 59 Issue 5, p1041-1051. 11p. |
| Témata: |
*ANIMAL feeding behavior, *FORAGING behavior, *MARINE fishes, *WATER quality, *BENTHIC animals, *PAGRUS auratus, *ECOLOGICAL impact |
| Geografický termín: |
NEW Zealand |
| Abstrakt: |
This study investigates the feeding behaviour of juvenile (0+) snapper (Chrysophrys auratus) in an estuarine nursery habitat. Underwater video footage recorded across a range of tidal states and times of day revealed a shift in foraging mode that was strongly related to water clarity. Fish exclusively ate benthic prey when horizontal water visibility was <4 m, but plankton dominated their diet in clearer water. The percentage of plankton in the diet also decreased later in the day, and on the outgoing tide. To our knowledge, this is the first documented evidence of daily prey-switching behaviour in wild juvenile snapper in New Zealand. Our findings highlight the adaptive foraging strategies of juvenile snapper as well as the potential ecological impacts resulting from anthropogenic alterations in water quality, which likely affect many marine species. [ABSTRACT FROM AUTHOR] |
| Databáze: |
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