Distribution, Biomass, and Demography of Coastal Pelagic Fishes in the California Current Ecosystem During Summer 2019 Based on Acoustic-Trawl Sampling

Stierhoff, Kevin L.; Zwolinski, Juan P.; Demer, David A. (David Arthur), 1964-

doi:10.25923/nghv-7c40

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Distribution, Biomass, and Demography of Coastal Pelagic Fishes in the California Current Ecosystem During Summer 2019 Based on Acoustic-Trawl Sampling

2020
By Stierhoff, Kevin L. ; Zwolinski, Juan P. ; Demer, David A. (David Arthur), 1964-
Series: NOAA technical memorandum NMFS NOAA-TM-NMFS-SWFSC ; 626

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Personal Author:

Stierhoff, Kevin L. ; Zwolinski, Juan P. ; Demer, David A. (David Arthur), 1964-

Stierhoff, Kevin L. ; Zwolinski, Juan P. ; Demer, David A. (David Arthur), 1964- Less -
Corporate Authors:

United States. National Marine Fisheries Service ; Southwest Fisheries Science Center (U.S.) ; University of California, Santa Cruz

United States. National Marine Fisheries Service ; Southwest Fisheries Science Center (U.S.) ; University of California, Santa Cruz Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) ; CIMEC (Cooperative Institute for Marine Ecosystems and Climate)

OAR (Oceanic and Atmospheric Research) ; NMFS (National Marine Fisheries Service) ; SWFSC (Southwest Fisheries Science Center) ; CIMEC (Cooperative Institute for Marine Ecosystems and Climate) Less -
Description:

This report provides: 1) a detailed description of the acoustic-trawl method (ATM) used by NOAA’s Southwest Fisheries Science Center (SWFSC) for direct assessments of the dominant species of coastal pelagic species (CPS; i.e., Pacifc Sardine Sardinops sagax, Northern Anchovy Engraulis mordax, Pacifc Mackerel Scomber japonicus, Jack Mackerel Trachurus symmetricus, and Pacifc Herring Clupea pallasii) in the California Current Ecosystem (CCE) of ̇ the west coast of North America; and 2) estimates of the biomasses, distributions, and demographies of those CPS in the survey area between 13 June and 9 September 2019. The core survey region spanned most of the continental shelf between the northern tip of Vancouver Island, British Columbia (BC) and San Diego, CA. Throughout the core region, NOAA Ship Reuben Lasker (hereafter, Lasker) sampled along transects oriented approximately perpendicular to the coast, from the shallowest navigable depth (~30 m) to either a distance of 35 nmi or to the 1,000 fathom (~1830 m) isobath, whichever is farthest. To estimate the biomass of CPS in the nearshore region, to ~10 m depth, where sampling by Lasker is unsafe, two fshing vessels (F/Vs Lisa Marie and Long Beach Carnage) and one unmanned surface vehicle (USV) sampled along 5 nmi-long transects spaced 5 nmi-apart along the mainland coast between Cape Flattery, WA and San Diego, CA, and around Santa Cruz and Santa Catalina Island in the Southern CA Bight (SCB).
Keywords:

[+]

Biomass Chub Mackerel Demography Distribution (Economic Theory) Ecosystem Management Jack Mackerel Northern Anchovy Ocean Currents Pacific Herring Pelagic Fishes Sardinops Sagax Surveying
Series:

NOAA technical memorandum NMFS NOAA-TM-NMFS-SWFSC ; 626
DOI:

https://doi.org/10.25923/nghv-7c40
Document Type:

Technical Memorandum
Place as Subject:

Pacific Ocean ; Pacific Coast (America) ; British Columbia ; San Diego (Calif.) ; Flattery, Cape (Wash.) ; ... More +

Pacific Ocean ; Pacific Coast (America) ; British Columbia ; San Diego (Calif.) ; Flattery, Cape (Wash.) ; Santa Cruz (Calif.) ; Santa Catalina Island (Calif.) ; Southern California Bight (Calif. and Mexico) Less -
Rights Information:

Public Domain
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Submitted
Main Document Checksum:

[+]

urn:sha256:82a42a4b98605c61824ee681d48d02bb807afbbc3298fd196bdc57ee7c5c1d8b
Download URL:

https://repository.library.noaa.gov/view/noaa/23076/noaa_23076_DS1.pdf
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Distribution, Biomass, and Demography of Coastal Pelagic Fishes in the California Current Ecosystem During Summer 2019 Based on Acoustic-Trawl Sampling

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