Resultados de la búsqueda
-
Target strengths of Antarctic krill (Euphausia superba)
is found. Given the general weakness of acoustic scattering by euphausiids, with physical ... desired to derive absolute measures of stock strength by the traditional echo integration method (Forbes ... measurements on E. superba have been reported, and fewer applied, e.g., those by Protaschuk and Lukashova ... (1982) at 120 kHz and those by Nakayama et al. (1986) at 200 kHz. To supplement such measurements ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 265–279 : Autor(es): Everson, I., D.G. Bone, J.L. Watkins and K.G. Foote
-
Australian research on Antarctic bird and seal diets
initially in response to the need identified by the BIOMASS Programme for data on the diets of vertebrate ... preparation) Mean weight of all food: 450g (post-hatching period only) Diet composition (% by weight ... : 574 stomach samples obtained by single water offloading Reference: Puddicombe and Johnstone (1988 ... Diet composition (% by weight): E. crystal/orophias E. superba Fish Amphipods Others Overall ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 231-249 : Autor(es): Williams, R.
-
Brief report of the joint Soviet-Australian expedition of the USSR FRV Professor Mesyatsev to the Australian fishing zone around the territory of Heard and McDonald Islands, May-August, 1987
of ~. gunnari and~. sguamifrons were found here in autumn and spring 1975 and in spring 1976 by ... McDonald Islands by sending to this area the USSR SRV Professor Mesyatsev during the austral winter of ... May until 27 June and the second from 24 July until 2 August. The Soviet Union was represented by 12 ... scientists, and Australia, by one observer. The research program to be conducted in Australian waters was ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 75-103 : Autor(es): Gherasimchook, V.V., V.N. Brodin, A.V. Kljausov, I.B. Russelo, P.V. Tishkov and N.B. Zaremba
-
Krill biomass in Area 48 and Area 58: recalculations of FIBEX data
(Conservation Measure 32/X). These limits were based on calculations undertaken by the Scientific Committee's ... calculate kriU biomass by statistical subareas within Area 48 (West Atlantic) but should also be extended ... out by the BIOMASS Acoustic Working Group in September 1984. The report of that workshop (Anon., 1986 ... , Cambridge, UK. 158 2.1 Data Availability A list of areas surveyed by the 11 vessels concerned is ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 157–181 : Autor(es): Trathan, P.N., D.J. Agnew, D.G.M. Miller, J.L. Watkins, I. Everson, M.R. Thorley, E. Murphy, A.W.A. Murray and C. Goss
-
Choosing distance between acoustic survey tacks
the biomass assessment error was found by simulating 11 density fields and 108 hydroacoustic surveys ... which is determined by the tack frequency. The distance between tacks should therefore be selected so ... field model is an array of 2500 figures making up a matrix of 50 lines by 50 columns. Concentrations ... of fishing species are imitated by patches of irregular shape; density outside the patches is zero ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 153-164 : Autor(es): Kalikhman, I.L., Z.I. Kizner, B.R. Zaripov and W.D. Tesler
-
Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery
Pioneer that had the potential to eliminate bait taking by albatrosses and minimise bait taking by ... describes the autoline and Spanish-system methods, as adopted by the CFL Pioneer and In Sung 66 ... Sung 66 is given in the appendix. The autoline and Spanish systems have also been described by ... locate the fishing gear (often four of the eight floats would be dragged down by the force of the ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Autor(es): Robertson, G.G
-
Archival and satellite-linked data recorders
provided by the ARGOS Satellite system. Use of either type of recorder allows diving behaviour to be ... parameters of the diving animal. Mechanical Raw-data Recorders This type of recorder is typified by the ... film time-depth recorder produced by Meer Instruments (1,2). This instrument records dive profiles ... (250rnrn by 50rnrn dia.) and heavy (700g), and data recovery and analysis are labour intensive ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Autor(es): Hill, R.D.
-
Modelling krill recruitment
variation in the total population older than the recruiting age class. This variance can be found by using ... de la Mare currently used to be replaced by a method whch is based on parameters whch can be ... rate from one age class to the next, which is given by: If M is assumed to be independent of age up ... produced by the model. If ~ ( f ) is replaced by a random observation with the appropriate properties ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 49–54 : Autor(es): W.K. de la Mare
-
A fine-scale model of the overlap between penguin foraging demands and the krill fishery in the South Shetland Islands and Antarctic Peninsula
, found all distances travelled by gentoo, chinstrap and Adklie penguins from Anvers Island to be rather ... Island. However, the foraging ranges for gentoo penguins seem to accord with those found by Croxall et ... overlap more rigorously and at a finer scale than that currently used by the Scientific Committee. A ... by 0.5" latitude) and compares this with catches by fine-scale areas. MODEL DESCRIPTION A model ...
Science Journal Paper : CCAMLR Science, Volume 2 (CCAMLR Science, Volume 2) : 99–110 : Autor(es): Agnew, D.J. and G. Phegan
-
Differentiation of independent populations of Antarctic krill
present, at least six stable cyclonic water circulations can be found and at least two or three of them ... of the Antarctic krill mainly represented by Euphausia superba. Considering the krill resource ... where krill forms commercial concentrations and is represented by an independent population acquires ... vital importance, because in areas where the fishery is intensive, krill may be threatened by ... . One paper (Ayala et al., 1975) reports the study of genetic variability of krill by electrophoresis ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR