globalchange  > 过去全球变化的重建
DOI: 10.1139/cjfas-2017-0480
WOS ID: WOS:000469204200009
Title:
Source water variability as a driver of rockfish recruitment in the California Current Ecosystem: implications for climate change and fisheries management
Author: Schroeder, Isaac D.1,2,3; Santora, Jarrod A.4; Bograd, Steven J.2; Hazen, Elliott L.2; Sakuma, Keith M.5; Moore, Andrew M.6; Edwards, Christopher A.6; Wells, Brian K.5; Field, John C.5
Corresponding Author: Schroeder, Isaac D.
Source Publication: CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
ISSN: 0706-652X
EISSN: 1205-7533
Publishing Year: 2019
Volume: 76, Issue:6, Pages:950-960
Language: 英语
WOS Keyword: OCEAN MODELING SYSTEM ; NORTHERN CALIFORNIA ; SEBASTES SPP. ; WEST-COAST ; ENVIRONMENTAL-CONDITIONS ; INTERANNUAL VARIATION ; JUVENILE ROCKFISHES ; DEMERSAL FISH ; BIOMASS ; IMPACTS
WOS Category: Fisheries ; Marine & Freshwater Biology
WOS Research Area: Fisheries ; Marine & Freshwater Biology
English Abstract:

Elucidating connections between ocean climate variability and change and recruitment of juvenile fishes to adult populations is critical for understanding variability in stock-recruit dynamics. Recruitment to adult rockfish populations in the California Current Ecosystem (CCE) is highly variable, leading to short-and long-term changes in abundance, productivity, forage availability, and potential fisheries yield. We used regional ocean model output, oceanographic data, and a 34-year time series of pelagic juvenile rockfish to investigate the interaction between changes in CCE source waters, as reflected by physical water mass properties, and recruitment variability. Specifically, variability of "spiciness" on upper water isopycnals explains a substantial fraction of the variation in pelagic juvenile rockfish abundance. High rockfish abundances correspond to cooler, fresher waters with higher dissolved oxygen (i.e., "minty") conditions, indicative of Pacific subarctic water. By contrast, years of low rockfish abundance are associated with warmer, more saline, and more oxygen-deficient (i.e., "spicy") conditions, reflecting waters of subtropical or equatorial origin. Transport and source waters in the CCE are key factors determining density-independent processes and subsequent recruitment to adult populations.


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Document Type: 期刊论文
Identifier: http://119.78.100.158/handle/2HF3EXSE/138795
Appears in Collections:过去全球变化的重建

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Affiliation: 1.Univ Calif Santa Cruz, Inst Marine Sci, 100 McAllister Way, Santa Cruz, CA 95060 USA
2.Natl Marine Fisheries Serv, Environm Res Div, Southwest Fisheries Sci Ctr, NOAA, 99 Pacific St,Suite 225A, Monterey, CA 93940 USA
3.Univ Calif Santa Cruz, CIMEC, 110 McAllister Way, Santa Cruz, CA 95060 USA
4.Univ Calif Santa Cruz, Dept Appl Math & Stat, 1156 High St, Santa Cruz, CA 95060 USA
5.Natl Marine Fisheries Serv, Fisheries Ecol Div, Southwest Fisheries Sci Ctr, NOAA, 110 McAllister Way, Santa Cruz, CA 95060 USA
6.Univ Calif Santa Cruz, Dept Ocean Sci, 1156 High St, Santa Cruz, CA 95065 USA

Recommended Citation:
Schroeder, Isaac D.,Santora, Jarrod A.,Bograd, Steven J.,et al. Source water variability as a driver of rockfish recruitment in the California Current Ecosystem: implications for climate change and fisheries management[J]. CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES,2019-01-01,76(6):950-960
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