Colony size and diet composition of piscivorous waterbirds on the lower Columbia River: implications for losses of juvenile salmonids to avian predation.

Author(s)

Collis, K., Roby, D.D., Craig, D.P., Adamany, S., Adkins, J.Y. and Lyons, D.E.

Volume

131

Issue

Start Page Number

537

Final Page

550

Datapoints

Displaying 1 - 2 of 2 datapoints.

Species: Double-crested Cormorant (Phalacrocorax auritus)
Exposure Endpoint Type	Endpoint Description	Endpoint Value	Sample Size	Units	Life Cycle Stage	Specific Location	Countries	Type
Dietary Composition	Percent by mass from adult foregut and chick regurgitation samples	Herring, shad: 0.6, Peamouth/Pikeminnow: 24.0, Sucker: 5.8, Smelt: 0.3, Salmonid: 45.5, Stickleback: 5.0, Sculpin: 8.0, Surfperch: 0.3, Flounder: 8.5, Other: 1.8	206	%	Both Adults and Juveniles	Rice Island/Channel Markers	USA	Exposure Factor Datasets
Dietary Composition	Percent by mass from adult foregut and chick regurgitation samples	Herring, shad: 27.8, Peamouth/Pikeminnow: 0.7, Sucker: 4.7, Smelt: 7.6, Salmonid: 15.9, Stickleback: 2.1, Sculpin: 9.2, Surfperch: 7.3, Flounder: Pacific sand lance: 1.8, Flounder: 9.8 Other: 1.3	128	%	Both Adults and Juveniles	East Sand Island	USA	Exposure Factor Datasets

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