Search results
-
The survivorship of rays discarded from the South Georgia longline fishery
- sideration. Normally only skates that are alive and undamaged are selected, with animals not being deemed ... hours, with observations being made at 6 and 12 hours to establish the condition of each animal ... in live animals and a pale pink or white in dead animals; (v) when removed from the tank, live animals ... and gill area in live animals. Common reactions observed in live skates: pectorals and tail curl under ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 155–164 : Author(s): Endicott, M. and D.J. Agnew
-
Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
Bayesian model. The models were composed of multistage cluster units (i.e. year, subarea, vessel, cruise ... estimated by the Markov chain Monte Carlo (MCMC) method hardly show difference among years, subareas ... and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal variability ... units (i.e. year, subarea, vessel, cruise and haul) based on a state–space model, separating ... th (m m ) 60 50 40 30 20 (a) Adult size in Subarea 48.1 Overall trend Year E st im ... Year E st im at ed m ea n le ng th (m m ) 60 50 40 30 20 (c) Adult size in Subarea ... 40 30 20 (e) Year Area Y–A Ves. Cruise Haul Ind. Va ria ... . ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 0 10 20 30 40 50 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Author(s): Okuda, T. and M. Kiyota
-
New data on spawning, hatching and growth of Champsocephalus gunnari on the shelf of the Kerguelen Islands
enabled a new cohort of fish to be identified each year. However, annual variations in abundance have been ... observed. During the sampling period the 1988 cohort was dominant on the outer shelf. The three-year cycle ... each year. However, annual variations in abundance have been observed. During the sampling period ... the 1988 cohort was dominant on the outer shelf. The three-year cycle observed previously seems ... 1971/72, yielded annual catches up to 30 000 tonnes in the first years of exploitation (Gerasimchuk ... by bottom trawl (30' duration; 12 to 20 stations, depending on weather and bottom conditions, total 150 ... of 1991/92 (Figure 3) . This group was also r - - - ' , ' i " " " ' " " " ' I " " 0 10 20 30 ... ). l J l l l l l / , , , 3 I " " " " I " " . I ' I ' ' " ' E a 0 10 20 30 2. 0 Total length (cm) 3 5 m 77 Figure3: Monthly LFDs for C. gunnari ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 21–34 : Author(s): Duhamel, G
-
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 ... the austral summers of 1991/92 and 1992/93 are described and compared with information from previous years ... of the previous year's spawn. Substantial proportions of juveniles and krill lengths <30 mm in 1992 (Figures ... ---20---30---40---50---60---70---80---90---~00 ST-3 3 - ST-5 - 0 ST-30 7 ST-4 9 ST-46 ST-61 ST ... (Dlink/Dmax)*100 Variable 1---10---20---30---40---50---60---70---80---90---100 (b) ST-1 - ST-2 ST-48 ... 20 25 30 35 40 45 50 55 6 0 Total Length (mm) Frequency % j 4 1 Frequency ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 7–33 : Author(s): Loeb, V. and V. Siegel
-
Preliminary results of investigations of the Federal Republic of Germany on Notothenia rossii marmorata (Fischer, 1885) in January/February 1985
to rebuild the stock around South Georgia might be successful. Although reported catches in recent years have ... years have been low, N. rossii around South Georgia is still largely affected by the fishery. Stock size ... around South Georgia might be successful. Although reported catches in recent years have been low ... B HHBape-¢eBpane 1985 r. c HHC "BanbTep XepBHr" Cb8MKa ,IJ;OHHhlM TpanoM HCilOJib- 30Banacn ,IJ;JIH cOopa ... with a sr.1211 meshed liner of 20 mm (figs. 1,2). Total length of the spcci.mcn.s wDi:; 1nec1sured to Ll1e ... to Lhe east and southeast of the island where yields varied beLween 2 and 5100 kg/30 min. 'Ihe besL ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/2 (Selected Scientific Papers, SC-CAMLR-SSP/2) : 33-57 : Author(s): Kock, K.-H.
-
The Soviet krill fishery in the Atlantic Sector of the Antarctic from 1977 to 1991: fishing effort distribution and interannual patterns
0 0 0 0 0 0 0 91 7 1. 8 R T M S 92 86 30 4 39 6 20 6 20 2 11 6 89 31 7 49 9 48 4 99 ... fi shery conditions from 1986 to 1990. 0 5 10 15 20 25 30 ... 3–4 4–5 5–6 6–7 7–8 8–9 10–11 11–12 12–13 13–14 14–15 15–16 Krill catches (tonnes/hour) Fr eq ue nc y (% ) 30 25 20 ... in the 15-year period from January 1977 to December 1991, the period during which the Soviet krill fi ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 1–13 : Author(s): Litvinov, F.F., V.A. Sushin, G.A. Chernega and O.A. Berezhinsky
-
Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
of mmolC m–2 or mgC m–2 per unit time (day or year). In this review, the term ‘model’ is reserved ... (euphotic zone depth). Dirr can be accurately calculated based on location and day of year, Copt can ... , the marginal ice zone and open-ocean fronts. Their one-year time series of productivity confirmed that while ... number they calculated (based only on one year of data, 1997/98) was in their combined Weddell– Ross Sea ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Author(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
-
A review of the effectiveness of streamer lines as a seabird by-catch mitigation technique in longline fisheries and CCAMLR streamer line requirements
(m) One streamer line: UW IW-50 Two streamer lines: IW-50+Cannon 10 20 30 ... and competitive interactions of individual species within that assemblage, fi shing location, time of year ... with a control of no deterrent across four experimental cruises over several years. Further, he demonstrated ... over two years in the sablefi sh and Pacifi c cod fi sheries (Melvin et al., 2001). Comparing single ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 189–201 : Author(s): Melvin, E.F., B. Sullivan, G. Robertson and B. Wienecke
-
The role of fish as predators of krill (Euphausia superba) and other pelagic resources in the Southern Ocean (submitted to the 2008 Joint CCAMLR-IWC Workshop)
to be considered when evaluating patterns that have emerged in Southern Ocean ecosystems in the course of the 20 ... emerged in Southern Ocean ecosystems in the course of the 20th century. As a first step towards ... and the large baleen whales in the first 80 years of the 20th century (the so called ‘krill surplus hypothesis ... span of typically 10–20 years (Kock et al., 1985; La Mesa et al., 2000) with the exception of the two ... for the split-years (1 July to 30 June) 1975/76 and 1977/78 (Table 5). Biomass estimates of C. gunnari were ... is by no means a pristine environ- ment. Human exploitation of the Southern Ocean started some 225 years ago ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 115–169 : Author(s): Kock, K.-H., E. Barrera-Oro, M. Belchier, M.A. Collins, G. Duhamel, S. Hanchet, L. Pshenichnov, D. Welsford and R. Williams
-
Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
examined for Adélie penguins over a period of 12 years. Data were collected from 1990/91 to 2001/02 ... while other parameters, such as arrival counts and incubating nest counts, are more stable between years ... and the interrelationships between these parameters were examined for Adélie penguins over a period of 12 years. Data ... , such as arrival counts and incubating nest counts, are more stable between years. The low degree of correlation ... / 19 90 14 / 11 / 19 90 17 / 11 / 19 90 30 / 11 / 19 90 05 / 12 / 19 90 20 ... / 19 92 20 / 11 / 19 92 04 / 12 / 19 92 07 / 12 / 19 92 30 / 12 / 19 92 26 ... / 19 97 14 / 11 / 19 97 16 / 11 / 19 97 30 / 11 / 19 97 03 / 12 / 19 97 20 ... / 20 00 17 / 11 / 20 00 02 / 12 / 20 00 04 / 12 / 20 00 04 / 01 / 20 01 30 ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Author(s): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell