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Title

POSTER: Monitoring temperature and chlorophyll a to explore the survival potential of Pacific herring larvae in Puget Sound

 
Publication number Date Published
19-03-007May 2019
VIEW NOW: POSTER: Monitoring temperature and chlorophyll a to explore the survival potential of Pacific herring larvae in Puget Sound (Number of pages: 1) (Publication Size: 1279KB)




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Author(s) Holly Young, Christopher Krembs, Adam Lindquist, Skip Albertson, Allison Brownlee, Julia Bos, Laura Hermanson, and Mya Keyzers
Description Climate change will affect the distribution and abundance of Pacific herring in Puget Sound. Long-term monitoring of marine water quality can provide valuable environmental context to observed biological patterns, including herring survival and stock recruitment. Ocean temperature is a critical factor influencing growth and survival of herring during their early life stages. Warmer temperatures can accelerate early growth and development. This potentially increases their survival, because larvae would spend less time in life stages associated with high mortality. The Washington State Department of Ecology’s Marine Waters Program has routinely monitored water quality throughout the Puget Sound since 1973. This study examines temperature and chlorophyll a data collected near documented spawning grounds to describe when and where conditions were potentially favorable for herring larvae. We hypothesize that when high temperatures and chlorophyll a coincide, sufficient food availability supports accelerated growth and larval survival rate increases. In the context of climatic uncertainty, understanding how water quality conditions influence early life stages provides insight into the causality of Pacific herring inter-annual fluctuations.
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Keywords marine water monitoring, Long-term, Pacific herring, Salmon Recovery Conference, climate impacts, marine water quality, marine waters, temperature, Puget Sound, climate change, long-term monitoring
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