2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/05/2017 | 11:30 AM - 11:45 AM | Growth and Foraging Patterns of Juvenile Chinook and Coho Salmon in Three Geomorphically Distinct Sub-Basins of the Kenai River | 306C
Growth and Foraging Patterns of Juvenile Chinook and Coho Salmon in Three Geomorphically Distinct Sub-Basins of the Kenai River
Changes in air temperature and precipitation from climate warming in south-central Alaska affects juvenile salmon freshwater rearing habitat differently, dependent on local watershed properties. Many south-central Alaskan salmon streams already experience water temperatures above Alaska Department of Environmental Conservation’s maximum thermal criteria of 15°C during summer months. Water temperature and food resources are key controls on juvenile salmon growth; however, the influence of temporal and spatial patterns in these variables is not well characterized. We surveyed (2015-2016) a lowland-to-montane spectrum of catchment types within the Kenai River watershed with differing potential vulnerabilities to warming air temperatures. Temperature, diet, and growth data are being incorporated into bioenergetics models that will allow us to determine the degree to which growth rates of juvenile salmon are limited by consumption rates and water temperature. Preliminary results indicate that low-elevation tributaries appear more influenced by air temperature, and rearing salmon in these environments are expected to be exposed to future temperatures outside physiological optimum more frequently than montane habitats.
- S16 Understanding and mitigating change in freshwater ecosystem services
- S16 Understanding and mitigating change in freshwater ecosystem services
- S10 Understanding and predicting the effects of climate change on lake and stream fishes
Presentation:
This presentation has not yet been uploaded.
Handouts:
Handout is not Available
Transcripts:
CART transcripts are NOT YET available, but will be posted shortly after the conference
Presenters/Authors
Benjamin Meyer
(), University Of Alaska Fairbanks, bemeyer@alaska.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Mark Wipfli
(), University of Alaska Fairbanks, mwipfli@alaska.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Daniel Rinella
(), U.S. Fish and Wildlife Service, daniel_rinella@fws.gov;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Erik Schoen
(), University of Alaska Fairbanks, eschoen@alaska.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -
Jeff Falke
(), University of Alaska Fairbanks, jeffrey.falke@alaska.edu;
ASHA DISCLOSURE:
Financial -
Nonfinancial -