Search results
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Analysis of krill trawling positions north of the South Shetland Islands (Antarctic Peninsula area), 1980/81–1999/2000
operations concentrated on the outer shelf in the early 1980s, along the shelf slope in the mid to late 1980s ... , and from the shelf across to the outer shelf in the early to late 1990s. Intra-annually, trawling positions ... generally started from the outer shelf and proceeded towards the shelf later in the season. Trawling ... and environmental factors. Commercial fishing operations concentrated on the outer shelf in the early 1980s, along ... operations concentrated on the outer shelf in the early 1980s, along the shelf slope in the mid to late ... 1980s, and from the shelf across to the outer shelf in the early to late 1990s. Intra-annually ... , trawling positions generally started from the outer shelf and proceeded towards the shelf later ... with a gradual decrease in the early 1980s. Mean STP for November 1983 was exceptionally large, indicating ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 25–36 : Author(s): Kawaguchi, S. and K. Segawa
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An impact assessment framework for bottom fishing methods in the CAMLR Convention Area
Introduction Background In 2007 CCAMLR adopted Conservation Measure 22-06 requiring Member countries ... the ‘likelihood-consequence’ approach, most appropriately addresses the need to man- age risks arising from rare ... of a the local benthic community over years, and ‘negligible’ at the scale of the entire ecosystem over decades ... Member countries can manage their activities to reduce risk even in the face of considerable uncer ...
Science Journal Paper : CCAMLR Science, Volume 16 (CCAMLR Science, Volume 16) : 195–210 : Author(s): Sharp, B.R., S.J. Parker and N. Smith
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CPUEs, body length and greenness of Antarctic krill during 1987/88 season in the fishing ground north of Livingston Island
for the Japanese krill fishery in the 1987/88 season. Fishing operations in this area were conducted from early ... and greenness of krill were examined for each 10-day period from early January to late March as a case study ... early February to mid-March, fishing efforts were concentrated in the waters northwest of Livingston ... . There was no significant difference in both catch/tow and catch/towing time among 10-day periods from early January ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 323–338 : Author(s): Endo, Y. and T. Ichii
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Status of the krill stock around Elephant Island in 1991/92 and 1992/93
the austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... distributions and maturity stage composition reflected relatively good year class success from the 1990/91 ... spawning season but poor success from 1991/92. Year class success from these and other years appears ... to be associated with female maturity development and spawning during the early summer months. The overall ... that if the status of female maturity development during early summer is an important factor influencing year class ... are described and compared with information from previous years. The general distribution of krill length ... composition reflected relatively good year class success from the 1990/91 spawning season but poor success ... from 1991/92. Year class success from these and other years appears to be associated with female ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Author(s): Loeb, V. and V. Siegel
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Annual changes in species composition and abundance of myctophid fish in the north of South Georgia (Subarea 48.3), Antarctica, during austral winters from 2002 to 2008
and abundance of myctophid fish in South Georgia. Since the dis- tribution patterns of myctophid fish ... north of South Georgia. Its unimodal size dis- tribution suggests that this species may migrate south ... off the Kerguelen Islands. In: di Prisco, G., E. Pisano and A. Clarke (Eds). Fishes of Antarctica ... or absent in early summer but more important later and the dominant prey for king penguins at South ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 155–163 : Author(s): Iwami, T., M. Naganobu, K. Taki and M. Kiyota
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Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region
- able for Antarctic species are mostly limited to dis- tribution and population density, but recruitment ... man- agement organisation or agreement (RFMO/A) needs to tailor its definition to be applicable ... VME taxa in the Ross Sea region Table 1 illustrates that each year New Zealand vessels have ... at either extreme, but in the middle, categorising some species as vulnerable or not will ultimately ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Author(s): Parker, S.J. and D.A. Bowden
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Distribution and size–age composition of Antarctic krill (Euphausia superba) in the South Orkney Islands region (CCAMLR Subarea 48.2).
of E. superba range from 3 to 8 years (Marr, 1962; Makarov, 1983; Aseev, 1984; Ikeda, 1984; Candy ... the size–age structure of pop- ulations based on length-frequency distributions (Marr, 1962; Makarov, 1983 ... 25–30 mm) and 2-year-old krill (age 2+; modal length 40–45 mm); the 3-, 4- and 5-year-old krill age ... Sologub and Remeslo 124 in 2009 and 2010. In both years, fishing opera- tions were conducted within ... distribution of size–age groups in association with particular water masses indicated that age 2+ krill ... dominated in cold Weddell Sea waters in the southern parts of the fishing area, while older age classes (3 ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 123–134 : Author(s): Sologub, D.O. and A.V. Remeslo
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Estimates of fish stock biomass around South Georgia in January/February 1985
is dependant on the abundance of the recruiting year class. Conservation measures adopted by CCAMLR in 1984 ... on the abundance of the recruiting year class. Conservation measures adopted by CCAMLR in 1984 are discussed ... Pseudochaenichthys georgianus n = 1525 10 20 JO 4o so length (cm) fie;, 12: Length f'requency dis tribution ... is dependant on the abundance of the recruiting year class. Conservation measures adopted by CCAMLR in 1984 ... in the southeast (fig. 5).The length composition (fig.6) indicates that with the exception of the early juve ... l f with some larger concentrations in Royal Bay and the station on the eastern shelf where C. gunnari ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 1-32 : Author(s): Kock, K.-H.
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A preliminary assessment of age and growth of Antarctic silverfish (Pleuragramma antarcticum) in the Ross Sea, Antarctica
-growing with a moderate longevity; the maximum estimated age was 14.3 years. Von Bertalanffy parameters ... derived for both sexes combined are: L ∞ 22.1 cm SL; K 0.167 y –1; t 0 –0.4 years. Parameter estimates ... –11.0 and 15.1–15.5 cm. Mean lengths of 4.9 and 7.3 cm (at ages 1.3 and 2.3 years respectively ... 6 to 9 years. File: 05sutton-horn.pdf ... were 2.5–4.7 cm SL. Similar- ly, Kellerman (1986) studied lengthfrequency dis- tributions of Antarctic ... the 0+, 1+ and 2+ year classes. Hubold (1985) examined silverfish occurring in the eastern and southern Weddell Sea ... ) studied the early lifehistory of Antarctic silverfish occurring in the eastern and southern Weddell Sea ... is relatively slowgrowing with a moderate longevity; the maximum estimated age was 14.3 years. Von Bertalanffy ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 75–86 : Author(s): Sutton, C.P. and P.L. Horn
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
2). Figure 1: The distribution of Euphausia superba derived from di itising Figure 135, p. 394 in Marr (1962 ... information on krill over much of its range (Marr, 1962; Mackintosh, 1973), and historical large surveys ... of the species and an understanding of the typical density values within that range. In recent years there has ... , 1962; Mackintosh, 1973) support modern ideas of where krill are to be found and where the major ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Author(s): Nicol, S., A.J. Constable and T. Pauly