North Pacific Anadromous Fish Commission

Technical Report 15

Table of Contents

Variation in Out-migration Timing and Estuary Reliance of “ocean-type” Chinook Salmon in the Fraser River Estuary, BC

Authors:
David C. Scott, Lia Chalifour, Misty MacDuffee, Julia K. Baum, and Scott G. Hinch

Abstract Excerpt:
Estuaries connect freshwater and ocean environments for Pacific salmon, providing important habitats during a crucial transition period for juveniles where feeding opportunities are abundant, and the risk of predation is relatively low. All Pacific salmon migrate through estuaries twice during their lifespan and many will reside for days to months during their downstream migrations (Healey 1982; Weitkamp et al. 2014; Moore et al. 2016). Chinook (Oncorhynchus tshawytscha) and chum salmon (O. keta) migrate downstream in their first year of life as fry are known to rear in estuaries, from a few days up to a few months for some Chinook populations (Levings et al. 1991; Volk et al. 2010; Carr-Harris et al. 2015).

*This is the first paragraph of an extended abstract. Download the full abstract below.

DOI:
https://doi.org/10.23849/npafctr15/25.27.

Citation

Scott, D.C., L. Chalifour, M. MacDuffee, J.K. Baum, and S.G. Hinch.  2019.  Variation in out-migration timing and estuary reliance of “ocean-type” Chinook salmon in the Fraser River estuary, BC.  N. Pac. Anadr. Fish Comm. Tech. Rep. 15: 25–27.  https://doi.org/10.23849/npafctr15/25.27.