Publikationsdatum:
2021-07-02
Beschreibung:
Novel data on the spatial and temporal distribution of fishing effort and population abundance are presented for the market squid fishery (Loligo opalescens) in the SouthernCalifornia Bight, 1992−2000. Fishing effort was measured by the detection of boat lights by the Defense MeteorologicalSatellite Program (DMSP) Operational Linescan System (OLS).Visual confirmation of fishing vessels by nocturnal aerial surveys indicated that lights detected by satellites arereliable indicators of fishing effort. Overall, fishing activity was concentrated off the following Channel Islands: Santa Rosa, Santa Cruz, Anacapa, and Santa Catalina. Fishing activity occurred at depths of 100 m orless. Landings, effort, and squid abundance (measured as landings per unit of effort, LPUE) markedly declinedduring the 1997−98 El Niño; landings and LPUE increased afterwards. Within a fishing season, the location of fishing activity shifted from the northern shores of Santa Rosa and Santa Cruz Islands in October, the typical starting date for squid fishing in the Bight, to the southern shores by March, the typical end of the squidseason. Light detection by satellites offers a source of fine-scale spatial and temporal data on fishing effort forthe market squid fishery off California, and these data can be integrated with environmental data and fishing logbook data in the development of a management plan.
Schlagwort(e):
Fisheries
;
Management
Repository-Name:
AquaDocs
Materialart:
article
,
TRUE
Format:
application/pdf
Format:
application/pdf
Format:
661-670
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