Rock(fish) around the clock: depths and activity levels of threatened Puget Sound rockfish

Speaker

Zofia Danielson

Streaming Media

Presentation Abstract

Rock(fish) around the clock: depths and activity levels of threatened Puget Sound rockfish The movement and dispersal of individual organisms and groups of organisms drive many ecological and evolutionary processes and are important considerations for conservation and management. Yelloweye rockfish (Sebastes ruberrimus) in Puget Sound, WA are listed as threatened under the Endangered Species Act (ESA) and have critical habitat designations, however little is known about their fine-scale movements in this area. The objectives of this study were to quantify patterns of vertical movement and activity level for yelloweye rockfish at hourly and seasonal scales and determine whether environmental covariates, such as currents, ocean temperature, and dissolved oxygen (DO) concentration, affect these patterns. We tagged 15 yelloweye rockfish with acoustic transmitters and monitored their movements in three acoustic receiver arrays in Hood Canal, WA from October 2016 to October 2017. Each transmitter was outfitted with a pressure and accelerometer sensor that transmitted the depth (m) and activity level (m/s

Session Title

Groundfish

Conference Track

SSE4: Fish Science and Policy

Conference Name

Salish Sea Ecosystem Conference (2022 : Online)

Document Type

Event

SSEC Identifier

SSE-traditionals-418

Start Date

26-4-2022 1:30 PM

End Date

26-4-2022 3:00 PM

Type of Presentation

Oral

Genre/Form

conference proceedings; presentations (communicative events)

Subjects – Topical (LCSH)

Endangered species--Washington (State)--Puget Sound; Sebastes--Washington (State)--Puget Sound; Fish stock assessment--Washington (State)--Puget Sound; Yelloweye rockfish--Washington (State)--Puget Sound

Geographic Coverage

Puget Sound (Wash.)

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.

Type

Text

Language

English

Format

application/pdf

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Apr 26th, 1:30 PM Apr 26th, 3:00 PM

Rock(fish) around the clock: depths and activity levels of threatened Puget Sound rockfish

Rock(fish) around the clock: depths and activity levels of threatened Puget Sound rockfish The movement and dispersal of individual organisms and groups of organisms drive many ecological and evolutionary processes and are important considerations for conservation and management. Yelloweye rockfish (Sebastes ruberrimus) in Puget Sound, WA are listed as threatened under the Endangered Species Act (ESA) and have critical habitat designations, however little is known about their fine-scale movements in this area. The objectives of this study were to quantify patterns of vertical movement and activity level for yelloweye rockfish at hourly and seasonal scales and determine whether environmental covariates, such as currents, ocean temperature, and dissolved oxygen (DO) concentration, affect these patterns. We tagged 15 yelloweye rockfish with acoustic transmitters and monitored their movements in three acoustic receiver arrays in Hood Canal, WA from October 2016 to October 2017. Each transmitter was outfitted with a pressure and accelerometer sensor that transmitted the depth (m) and activity level (m/s