Search results
-
Fecundity and size at sexual maturity of the bigeye grenadier (Macrourus holotrachys) at South Georgia (CCAMLR Subarea 48.3)
outnumbering males by a ratio of 32:1 which may represent the true ratio of females to males within the ... population or could suggest that females are more susceptible to capture by longlines than males. Author(s ...
Meeting Document : WG-FSA-02/26 : Author(s): T. Mulvey, S.A. Morley, M. Belchier and J. Dickson (United Kingdom)
-
Longline fishing at Tristan da Cunha: impact on seabirds
birds per 1000 hooks). By comparison, the pelagic fishery for tuna, which exceeds demersal fishing ... of observers on board. The gravest threat posed by longline fishing to Tristan’s seabirds comes from ...
Meeting Document : WG-FSA-00/13 : Author(s): N. Glass, I. Lavarello, J.P. Glass and P.G. Ryan (South Africa)
-
CCAMLR spatial management GIS: potential applications for informing the development of a representative system of MPAs
(MPAs), for example by allowing accurate calculation of existing management areas, and management area ... proportion of bioregion areas protected by MPAs. The database also provides a central repository for ...
Meeting Document : WS-MPA-11/20 : Author(s): S.M. Grant, S.L. Hill and P.T. Fretwell (UK)
-
Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
production, in the form of a “windfall ratio”. The DCAC is calculated as the sum of catches divided by the ... uncertainty can be integrated by Monte Carlo exploration of DCAC values. Author(s): A.D. McCall Title ...
Meeting Document : WG-SAM-11/P3 : Author(s): A.D. McCall
-
ANNUAL REPORT FROM SCAR TO CCAMLR
Abstract: This paper reports on the various activities conducted by or involving SCAR that relate ... --Advances in and beyond IPY--". Author(s): Submitted by SCAR Title: ANNUAL REPORT FROM SCAR TO CCAMLR ...
Meeting Document : CCAMLR-XXVIII/BG/34 : Author(s): Submitted by SCAR
-
CIRCULATION IN THE ROSS SEA SECTOR OF THE SOUTHERN OCEAN: REPRESENTATION IN NUMERICAL MODELS
particular, the models sugges a pair of cyclonic gyres separated by shallow bathymetry around 180º E that ... comprise the Antarctic Shelf Front and the Antarctic Coastal Current. To the north the gyres are bounded by ...
Meeting Document : WG-EMM-09/41 : Author(s): G.J. Rickard (New Zealand), M. Roberts (United Kingdom), M.J.M. Williams, A. Dunn, M.H. Smith and M. Pinkerton (New Zealand)
-
ESTIMATING THE SWEPT AREA OF DEMERSAL LONGLINES BASED ON IN-SITU VIDEO FOOTAGE
total time to retrieve the line, we estimate that up to 0.122 km2 of seafloor was swept by the line ... while it was being retrieved. Consequently the area of seafloor affected by demersal longlines is shown ...
Meeting Document : WG-FSA-08/58 : Author(s): D. Welsford and R. Kilpatrick (Australia)
-
Laboratory target strength measurements of free swimming Antarctic krill (Euphausia superba)
than a threshold, determined by the system noise level. Dorsal and ventral target strength estimates ... were calculated indirectly by deconvolution of the cumulative probability function of echo ensembles of ...
Meeting Document : WG-EMM-97/75 : Author(s): Pauly, T., Penrose, J.D.
-
Fish as diet of the blue-eyed shag, Phalacrocorax atriceps bransfieldensis at Half-Moon Island, South Shetland Islands
the diet of the blue-eyed shag Phalacrocorax atriceps bransfieldensis. Fish species were identified by ... by number (37.9%), whereas N. coriiceps prevailed in mass (35.8%). With the exception of G ...
Meeting Document : WG-CEMP-94/32 : Author(s): E.R. Barrera-Oro and R.J. Casaux (Argentina)
-
Some comments on the procedure for testing estimators of krill abundance which utilise survey data
" models of krill distribution are considered. These achieve overall spatial correlation by placing ... by MV SA Agulhas. However, evidence of model misspecification remains. Further work is needed before ...
Meeting Document : WG-KRILL-91/21 : Author(s): D.S. Butterworth, D.L. Borchers and D.G.M. Miller (South Africa)