Estimation of feeding patterns for piscivorous fish using individual prey data 
from stomach contents

Berg, Casper Willestofte; Temming, Axel

doi:10.1139/F2011-020

Item

ITEM ACTIONSEXPORT

Add to Basket

Local TagsRelease HistoryDetailsSummary

Released

Journal Article

Estimation of feeding patterns for piscivorous fish using individual prey data from stomach contents

MPS-Authors

There are no MPG-Authors in the publication available

External Resource

No external resources are shared

Fulltext (restricted access)

There are currently no full texts shared for your IP range.

Fulltext (public)

There are no public fulltexts stored in PuRe

Supplementary Material (public)

There is no public supplementary material available

Citation

Berg, C. W., & Temming, A. (2011). Estimation of feeding patterns for piscivorous fish using individual prey data from stomach contents. CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES, 68(5), 834-841. doi:10.1139/F2011-020.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-2725-7

Abstract

The problem of estimating temporal feeding patterns using stomach data is considered, where the time of ingestion for each prey item can be predicted through a gastric evacuation model. The arrival of prey is modelled as a nonhomogeneous Poisson process with known periodic intensity. A maximum likelihood approach is used to estimate the intensity, which is assumed to be the same for all predators, incorporating different uncertainties for the arrival time of each prey item. The method is applied to a case where a population of whiting (Merlangius merlangus) is feeding on sandeel (Ammodytes marinus), and peak feeding periods around dusk and dawn are identified.