Search results
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Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
Paper Title: Calibration of an acoustic echo-integration system in a deep tank, with system gain ... a 120 kHz split-beam transducer in a refrigerated 10 m deep tank. Calibration parameters are studied ... in relation to sphere material (WC and Cu), water temperature (0.5 to 5.5°C), transmitted pulse ... length (0.1, 0.3 and 1.0 ms), target depth (0.8 to 7.5 m), and time (149 days). The total range in TS ... -INTEGRATION SYSTEM IN A DEEP TANK, WITH SYSTEM GAIN COMPARISONS OVER STANDARD SPHERE MATERIAL, WATER ... transducer in a refrigerated 10 m deep tank. Calibration parameters are studied in relation to sphere ... ), target depth (0.8 to 7.5 m), and time (149 days). The total range in TS gain, including the effects of ... between SA gain and TS gain. The total spread in SA gain, including the effects of temperature, standard ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 127–144 : Author(s): Demer, D.A. and R.P. Hewitt
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Trawl bag selectivity in the Champsocephalus gunnari fishery
BbInOJIHeHbI 3KcnepH- * AtIantNIRO, 5 Dimitry Donskoy Street, Kaliningrad 236000, USSR ** VNIRO, 17a ... TpaJIeHHti N=29. BbI4HCJIeHH5.l BbInOJIHeHbl MeTO,llOM CKOJIb35.llIleti cpe,llHeti). CeKIJ;H5.l cO,llep ... Paper Title: Trawl bag selectivity in the Champsocephalus gunnari fishery Abstract / Description ... were carried out in June 1990 in the South Georgia area concurrently with trawl surveys as part of the ... from previous years demonstrates close similarity. A significant increase in modal length (up to 34-35 ... recommended in order to fully understand the mechanism involved. File: 18-Bidenko-and-Istomin.pdf ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 295–312 : Author(s): Bidenko, V.G. and I.G. Istomin
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Patagonian toothfish in international waters of the Southwest Indian Ocean (Statistical Area 51)
Paper Title: Patagonian toothfish in international waters of the Southwest Indian Ocean ... , following commercial fishing procedures, in a restricted area south of Madagascar and north of Prince Edward ... made at depths between 360 and 1 950 m. D. eleginoides was present in all hauls, with catches varying ... located at the edge of the principal area of D. eleginoides concentration, in which a residual recruitment ... (2005): 207–214 207 PATAGONIAN TOOTHFISH IN INTERNATIONAL WATERS OF THE SOUTHWEST INDIAN OCEAN ... , in a restricted area south of Madagascar and north of Prince Edward and Marion Islands and the ... 950 m. D. eleginoides was present in all hauls, with catches varying from 53 to 1 158 kg. The ... area of D. eleginoides concentration, in which a residual recruitment effect persists. The total CPUE ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 207–214 : Author(s): López Abellán, L.J
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Can we satisfactorily estimate variation in krill abundance?
Paper Title: Can we satisfactorily estimate variation in krill abundance? Abstract / Description ... per unit effort (CPUE) has traditionally been used in demersal fisheries assessments as an estimator ... to year variation in krill abundance it is important that this be quantified and separated from ... fishery induced variation. The timescale for such information is discussed in the light of the needs of ... SATISFACTORILY ESTIMATE VARIATION IN KRILL ABUNDANCE?* I. Everson1 (United Kingdom) Abstract Knowledge of ... effort (CPUE) has traditionally been used in demersal fisheries assessments as an estimator of ... variation in hill abundance it is important that this be quantified and separated from fishery induced ... variation. The timescale for such information is discussed in the light of the needs of fishery management ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 375-376 : Author(s): Everson, I.
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Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a krill abundance index
Paper Title: Analysis of trends in Japanese krill fishery CPUE data, and its possible use as a ... definitions of effort and catch-per-unit-effort (CPUE), variables were modelled using linear mixed models in ... . The results strongly suggest that the krill fishery in the South Georgia area is operating at a ... critical level of krill availability which is just enough to maintain the best factory performance. In this ... . 12 (2005): 1–28 ANALYSIS OF TRENDS IN JAPANESE KRILL FISHERY CPUE DATA, AND ITS POSSIBLE USE AS A ... of effort and catch-per-unit-effort (CPUE), variables were modelled using linear mixed models in ... . The results strongly suggest that the krill fi shery in the South Georgia area is operating at a ... critical level of krill availability which is just enough to maintain the best factory performance. In ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 1–28 : Author(s): Kawaguchi, S., S. Candy, S. Nicol, K. Taki and M. Naganobu
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Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by acoustic surveys
Paper Title: Biomass of myctophids in the Atlantic sector of the Southern Ocean as estimated by ... acoustic surveys Abstract / Description: Acoustic surveys carried out in the summer and autumn of 1987 ... -1989 estimated the biomass of myctophids in the Atlantic sector of the Southern Ocean between 48° and ... species, Electrona carlsbergi, were found only in some limited areas. The bulk of the surveyed biomass of ... WG-FSA-90/19 BIOMASS OF MYCTOPHIDS IN THE ATLANTIC ... . Kiseleva* Abstract Acoustic surveys carried out in the summer and autumn of 19g7 -19g9 estimated the ... biomass of myctophids in the Atlantic sector of the Southern Ocean between 4go and 56° and from go to ... carlsbergi, were found only in some limited areas. The bulk of the surveyed biomass of myctophids was found ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 417–431 : Author(s): Filin, A.A., K.V. Gorchinsky and V.M. Kiseleva
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A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea based on data from predators
Paper Title: A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in ... Martialia hyadesi; will be attempted in the future. This squid is an important component of the diet of ... several species of albatross and the southern elephant seal and is probably taken in significant ... predators in the Scotia Sea is 326 098 to 330 642 tonnes, 94% of which is taken by southern elephant seals ... OF THE OMMASTREPHID SQUID MARTIALIA BY ADESI IN THE SCOTIA SEA BASED ON DATA FROM PREDATORS· P.G ... exploitation of the sub-Antarctic ommastrephid species Martialia hyadesi will be attempted in the future. This ... seal and is probably taken in significant quantities by several other Southern Ocean vertebrate ... predators. Estimated annual consumption by known predators in the Scotia Sea is 326 098 to 330642 tonnes ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 479–480 : Author(s): Rodhouse, P.G.
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The sensitivity of multiple output statistics to input parameters in a krill–predator–fishery ecosystem dynamics model
Paper Title: The sensitivity of multiple output statistics to input parameters in a krill ... strategic frameworks for assessing uncertainty in ecosystem dynamics models. Such models have been used ... within CCAMLR to evaluate options for managing the Antarctic krill fishery in the Scotia Sea and southern ... plausible alternative hypotheses in data-poor situations. Apparent sensitivity is a function of both input ... referred to as KPFM, KPFM2 and Foosa in Watters et al. (2005; 2006; 2008a), Hill et al. (2007a, 2007b ... , 2007). Nonetheless, in its simplest form it requires 50 distinct inputs (18 point values, 29 vectors ... and 3 matrices). In the 15 SSMU–four predator configuration developed by Watters et al. (2013), it ... sensitivity of predator reproduction to variations in krill abundance. The alternative scenarios were an ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 97–118 : Author(s): Hill, S.L. and J. Matthews
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Size compositions of males and females in the course of the life cycle of Euphausia superba
BbInOJlH5ITb He TOJlbKO H3MepeHHe nOJlOB03peJlblX oc06eH KPHJl5I, HO H onpe~eJleHHe HX nOJlOBOH npHHa~Jle ... Paper Title: Size compositions of males and females in the course of the life cycle of Euphausia ... superba Abstract / Description: Earlier studies did not pay attention to differences in size composition ... of Euphausia superba populations by sex and its seasonal variability. In this paper variations in ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 3–16 : Author(s): Makarov, R.R.
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Evaluation of the results of trawl selectivity experiments by Poland, Spain and USSR in 1978/79, 1981/82 and 1986/87
in 1978/79, 1981/82 and 1986/87 Abstract / Description: Trawl selectivity for several species of ... selectivity experiments in Statistical Area 48 in 1978/79, 1981/82 and 1986/87 seasons. These data comprise ... commercial fishery in Statistical Area 48. File: 13-Slosarczyk-et-al.pdf ... TRAWL SELECTIVITY EXPERIMENTS BY POLAND, SPAIN AND USSR IN 1978/79, 1981/82 AND 1986/87 W. Slosarczyk ... selectivity experiments in Statistical Area 48 in 1978/79, 1981/82 and 1986/87 seasons. These data comprise ... commercial fishery in Statistical Area 48. Resume La selectivite des chaluts pour plusieurs especes de ... codends on Antarctic fish were evaluated in the light of additional information presented to the CCAMLR ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 163–196 : Author(s): Slosarczyk, W., E. Balguerias, K. Shust and S. Iglesias