Resultados de la búsqueda
-
AMLR 2009/10 Field Season Report: objectives, accomplishments and conclusions
characterizing the waters around the South Shetland Islands indicate that several water masses converge in the ... ; the results will be recalculated based on updated models from the 2010 CCAMLR WG-ASAM. Net-based ... low, indicating that a weak cohort was produced the previous year. The abundance of Salpa thompsoni ...
Meeting Document : WG-EMM-10/P12 : Autor(es): A. Van Cise (Editor)
-
Factors to consider in developing management measures for krill
Living Resources is given along with an outline of steps for the evolution of management procedures for ... outlined. Some interim management measures are suggested which could be implemented while a more generally ... introduce conservation measures in a timely fashion, with the possibility that stocks may be seriously ... establishing the yield of krill than can be taken while ensuring that depleted resources are able to recover ... . Conservation also involves ensuring that species that are not exploited will be maintained at levels of ... abundance, such that their replacement rate is not seriously diminished. Rational use is defined to be the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 175–187 : Autor(es): de la Mare, W.K.
-
A preliminary assessment of age and growth of eel cod (Muraenolepis sp.) and violet cod (Antimora rostrata) in the Ross Sea, Antarctica
growth parameters for these species. The estimates must be considered preliminary because they are ... depth range, so probably comprise a single species. They are relatively short-lived, with a maximum ... ., 42.8 cm TL; K, 0.408 y-1; t0,-0.1 years. Violet cod are relatively long-lived, with a maximum estimated ...
Meeting Document : WG-FSA-10/19 : Autor(es): P.L. Horn and C.P. Sutton (New Zealand)
-
Distribution and some biological features of icefish (Champsocephalus gunnari) at different life cycle stages in the South Georgia subarea
for the most time and is fished with midwater trawl. Its diurnal migrations pattern is similar to that ... that the life mode changed from pelagic one occurring at early life stages, to near-bottom- pelagic one ... near the bottom where it is fished with bottom gears. The annual cycle of fish is subdivided into 3 ...
Meeting Document : WG-FSA-99/65 : Autor(es): Zh.A. Frolkina (Russia)
-
PROPOSAL FOR AN EXTENSION TO THE MARK–RECAPTURE EXPERIMENT TO ESTIMATE TOOTHFISH POPULATION SIZE IN THE SOUTH OF SUBAREA 48.4
fishing season with the aims of providing the data required for assessments of the population structure ... with discard weights at 19% and 0.8% of toothfish catches, respectively. These rates are similar to ... experiment in the South of Subarea 48.4 in 2009/10 with a combined catch limit of 75 tonnes for Dissostichus ... spp. 6. It is proposed that tagging effort is restricted to D. mawsoni which dominates catches in the ...
Meeting Document : WG-FSA-09/18 : Autor(es): J. Roberts and D.J. Agnew (United Kingdom)
-
DEVELOPING A ‘BEST AVAILABLE SCIENCE’ BATHYMETRIC DATA FRAMEWORK FOR FISHERIES MANAGEMENT IN THE ROSS SEA
sources improve with time through additional data collection and analytical methods. In addition, the ... and also improve with research through time. We report on an effort to define the current “best ... available science” bathymetric data for the Ross Sea region along with a set of spatial tools in the form of ... computer scripts that provide a transparent and citable method to derive standard summary statistics for ...
Meeting Document : WG-FSA-09/38 : Autor(es): S.J. Parker, S.M. Hanchet, B. Wood and A. Dunn (New Zealand)
-
Time series of Antarctic krill estimates around the South Shetland Islands from 2013 to 2019
Subarea 48.1 is submitted with accompanying description of the acoustic survey and data analysis ... data were collected with ship-mounted Simrad EK60 scientific echosounder system. A swarm-based Echoview ... EV template was used for echo-integration, and the areal krill density with coefficient of variance ... (CV) was calculated following Jolly and Hampton (1990). The results suggest that krill distribution ...
Meeting Document : SG-ASAM-2019/04 Rev. 1 : Autor(es): X. Yu, X. Wang, X. Zhao, J. Zhang, G. Fan, Y. Ying and J. Zhu
-
Preliminary assessment of mackerel icefish (Champsocephalus gunnari) for the Heard Island Plateau region (Division 58.5.2) based on a survey in May 2004
using the assessment methods of CCAMLR for SAFAG 21. Author(s): C.R. Davies, T. Lamb, A.J. Constable ...
Meeting Document : WG-FSA-04/77 : Autor(es): C.R. Davies, T. Lamb, A.J. Constable and R. Williams (Australia)
-
Characteristics of water flows in areas for Antarctic krill concentrations near the South Shetland Islands
into South Georgia or the South Orkneys. Author(s): Naganobu, M., Ichii, T. Title: Characteristics of ...
Meeting Document : WG-EMM-95/49 : Autor(es): Naganobu, M., Ichii, T.
-
A note on the chlorophyll measurement by satellite remote sensing in the Antarctic Ocean
images. Author(s): T. Ogishima, M. Naganobu and S. Matsumura (Japan) Title: A note on the chlorophyll ...
Meeting Document : WG-KRILL-93/33 : Autor(es): T. Ogishima, M. Naganobu and S. Matsumura (Japan)