Using cone beam CT scans to reveal headfirst ingestion and possible prey manipulation tactics in sawsharks
| Autor: | Jane E. Williamson, Patrick J. Burke |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
biology 010604 marine biology & hydrobiology digestive oral and skin physiology Foraging Rostrum Zoology Captivity Cone-Beam Computed Tomography Aquatic Science biology.organism_classification 010603 evolutionary biology 01 natural sciences Predation Eating Sawshark Predatory Behavior behavior and behavior mechanisms Animals Ingestion Pristiophorus cirratus Tooth Ecology Evolution Behavior and Systematics Cone beam ct Elasmobranchii |
| Zdroj: | Journal of Fish Biology. 99:271-274 |
| ISSN: | 1095-8649 0022-1112 |
| DOI: | 10.1111/jfb.14692 |
| Popis: | Prey manipulation through headfirst ingestion is a common foraging tactic in predatory taxa. Sawsharks possess a toothed rostrum that is thought to assist in prey capture, but the process from prey contact to ingestion is unknown. This study provides evidence of headfirst ingestion and possible prey orientation in situ through the use of cone beam CT scans in the common sawshark (Pristiophorus cirratus). CT scans provide an efficient method for assessing ingestion and proposing plausible behavioural tactics for food manipulation in a species difficult to observe in the wild or maintain in captivity. |
| Databáze: | OpenAIRE |
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