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Record #173846:

Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index / S. Kawaguchi, S. Candy, S. Nicol, K. Taki, M. Naganobu.

Title: Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index / S. Kawaguchi, S. Candy, S. Nicol, K. Taki, M. Naganobu.
Author(s): Kawaguchi, S.
Candy, S.
Nicol, S.
Taki, K.
Naganobu, M.
Date: 2005.
In: CCAMLR Science. (2005.), Vol. 12 (2005)
Abstract: Examines utility of commercial fishery logbook catch-per-unit-effort (CPUE) data as index of krill abundance, and examines nature of fishing strategies, based on analysis of haul-by-haul logbook catch and effort data from Japanese krill fishery for 1980-81 to 2003-04 fishing seasons. For some definitions of effort and CPUE, variables were modelled using liner mixed models in order to obtain time series of predicted intra- and interannual trends of standardised fishery indices. Results suggest that krill fishery in South Georgia area is operating at critical level of krill availability which is just enough to maintain best factory performance. Status of fishing in subareas 48.1 (South Shetland Islands) and 48.2 (South Orkney) was not clear. Linear correlation between catch per searching time and catch per day within their lower ranges suggests these may have some value as abundance indices.
Notes:

CCAMLR Science. Vol. 12 :1-28 (2005).

Keywords: 639.2 -- Fisheries.
639.2.001 -- Fisheries research.
639.281.2 -- Krill industry.
595.383.1 -- Euphausiacea.
574.34 -- Population dynamics.
574.36 -- Biomass and energetics of populations.
639.2.058 -- Fisheries, overexploitation.
N -- Renewable resources.
(*7) -- Antarctic regions.
(*723) -- South Georgia and Shag Rocks.
(*725) -- South Orkney Islands.
(*726.1) -- South Shetland Islands.
(*80) -- Southern Ocean.
(*82) -- South Atlantic Ocean.
(*821) -- Drake Passage.
(*824) -- Scotia Sea.
SPRI record no.: 173846

MARCXML

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245 00 ‡aAnalysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index /‡cS. Kawaguchi, S. Candy, S. Nicol, K. Taki, M. Naganobu.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2005.
300 ## ‡ap. 1-28 :‡bdiags., tables, maps.
500 ## ‡aCCAMLR Science. Vol. 12 :1-28 (2005).
520 3# ‡aExamines utility of commercial fishery logbook catch-per-unit-effort (CPUE) data as index of krill abundance, and examines nature of fishing strategies, based on analysis of haul-by-haul logbook catch and effort data from Japanese krill fishery for 1980-81 to 2003-04 fishing seasons. For some definitions of effort and CPUE, variables were modelled using liner mixed models in order to obtain time series of predicted intra- and interannual trends of standardised fishery indices. Results suggest that krill fishery in South Georgia area is operating at critical level of krill availability which is just enough to maintain best factory performance. Status of fishing in subareas 48.1 (South Shetland Islands) and 48.2 (South Orkney) was not clear. Linear correlation between catch per searching time and catch per day within their lower ranges suggests these may have some value as abundance indices.
650 07 ‡a639.2 -- Fisheries.‡2udc
650 07 ‡a639.2.001 -- Fisheries research.‡2udc
650 07 ‡a639.281.2 -- Krill industry.‡2udc
650 07 ‡a595.383.1 -- Euphausiacea.‡2udc
650 07 ‡a574.34 -- Population dynamics.‡2udc
650 07 ‡a574.36 -- Biomass and energetics of populations.‡2udc
650 07 ‡a639.2.058 -- Fisheries, overexploitation.‡2udc
650 07 ‡aN -- Renewable resources.‡2local
651 #7 ‡a(*7) -- Antarctic regions.‡2udc
651 #7 ‡a(*723) -- South Georgia and Shag Rocks.‡2udc
651 #7 ‡a(*725) -- South Orkney Islands.‡2udc
651 #7 ‡a(*726.1) -- South Shetland Islands.‡2udc
651 #7 ‡a(*80) -- Southern Ocean.‡2udc
651 #7 ‡a(*82) -- South Atlantic Ocean.‡2udc
651 #7 ‡a(*821) -- Drake Passage.‡2udc
651 #7 ‡a(*824) -- Scotia Sea.‡2udc
700 1# ‡aKawaguchi, S.
700 1# ‡aCandy, S.
700 1# ‡aNicol, S.
700 1# ‡aTaki, K.
700 1# ‡aNaganobu, M.
773 0# ‡7nnas ‡tCCAMLR Science. ‡gVol. 12 (2005) ‡wSPRI-131147
916 ## ‡a2006/02/21 -- HS
917 ## ‡aUnenhanced record from Muscat, imported 2019
948 3# ‡a20220924 ‡bHS