Résultats de la recherche
-
A Comparison Between Age Determinations of the Antarctic Fish Notothenia gibberifrons Lönnberg Using Scales and Otoliths
were interpreted 60% of scale readings and 30% separate and simultaneous interpretations. Estimates of ... derived from scales are approximately 30% greater than predictions utilising age data derived from ...
Meeting Document : WG-FSA-89/13 : Auteur(s): R. Coggan (United Kingdom), K. Skora (Poland), A. Murray and M. White (United Kingdom)
-
Book review: Fish and Fish Resources of the Antarctic
work by K.V. Shust (Doctor of Biological Sciences), published in 1998, remains fairly unknown beyond a ... fish species. Moreover its value is enhanced by the author having participated in many fisheries ... research expeditions in Antarctica. The introduction notes that until the 1960s Antarctic waters were still ... began regular, largescale multidisciplinary studies here in the early 1960s. Starting from the first ... knowledge acquired by the author over a period of more than 30 years allowed lum to analyse both the ... , Russia antarctica@vniro.ru Published in Russian by: Russian Federal Research Institute of Fisheries ... I Brief essay of the Antarctic ichthyofauna Chapter I1 Fish distribution in Antarctic waters 1 ... resources Literature Cited This work by K.V. Shust (Doctor of Biological Sciences), published in 1998 ...
Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 165–168 : Auteur(s): Shust, K.V
-
Using carapace measurements to determine the sex of Antarctic krill (Euphausia superba)
derived from mature krill in years following significant recruitment events with large proportions of ... Abstract: Krill carapaces measurements have been used to reconstruct krill length frequencies in ... populations. The equations have been applied to fur seal diet studies in the South Shetlands but until now ... have not been validated using locally sampled krill. This study reports on a three year study ...
Meeting Document : WG-EMM-05/26 : Auteur(s): J.D. Lipsky, M.E. Goebel, C.S. Reiss and V. Loeb (USA)
-
Beach debris survey – Main Bay, Bird Island, South Georgia 2000/01
), but to a lesser extent than in previous years, whilst miscellaneous debris accounted for almost as ... Abstract: During the eleventh year of standardised beach surveys of man-made debris at Bird ... of 408 items recorded in 1999/00 and the lowest levels of summer beach debris (147 items) since the ... 1994/95 season. The difference between the number of items collected in the summer and winter months is ...
Meeting Document : SC-CAMLR-XXI/BG/03 : Auteur(s): Delegation of the United Kingdom
-
ANALYSIS OF ROSS SEA TAGGING AND RECAPTURE RATES
year and recapture year for tags released and recaptured in the same SSRUs on the slope of 88.1 was ... (caught), all in numbers. 2. The overall size of the dataset was 734 combinations of release year ... , recapture year, SSRU, release nation and recapture nation, with 193 recaptures. Despite this size, fishing ... has not been consistent enough between nations to allow the analysis to be definitive. In many cases ...
Meeting Document : WG-SAM-08/07 : Auteur(s): D.J. Agnew (UK)
-
Review of depredation mitigation methods applied within the CCAMLR Statistical Area
growing issue in fisheries around the world. Within the CCAMLR management killer whales and to a lesser ... sound, the physical protection of the catch by nets, hooks or wires or changes in fishing practise such ... of different length. However, deterrents and in particular acoustic deterrents have the potential to ... measures employed in the CCAMLR management area and their potential for disruption both in target and non ...
Meeting Document : WG-SAM-15/28 : Auteur(s): R. Faulkner, N. Edmonds and M. Soeffker (United Kingdom)
-
ECOLOGICAL REPERCUSSIONS OF HISTORICAL FISH EXTRACTION FROM THE SOUTHERN OCEAN
Abstract: A major mid-1980s shift in ecological structure of significant portions of the Southern ... stocks were on average reduced to <50%, and finally (mid-1980s) to <20%, of original size. Despite ... -selected life-history patterns, and before exploitation presumably fluctuated in accordance with infrequent ... strong year classes, as is true of such fish elsewhere. A climate regime, the Southern Annular Mode, once ...
Meeting Document : WG-EMM-08/P07 : Auteur(s): D. Ainley and L. Blight
-
Growth rates of Antarctic fur seals as indices of environmental conditions
mass at age in each year compared to the multi-year mean, that was not dependent on assumptions of ... growth rates in years of low krill availability. Biases reflecting changes in the component of the ... weighing cross-sections of the population were compared with measured/inferred changes in the the ... differences in growth rate can reliably be derived from differences in the slope of a linear relationship ...
Meeting Document : WG-EMM-01/20 : Auteur(s): K. Reid (United Kingdom)
-
Algunos aspectos biologicos relevantes a la explotacion de la merluza negra (Dissostichus eleginoides Smitt, 1898) en la zona economica exclusiva argentina y sector oceanico adyacente
eleginoides) in the Argentine Sea, and atempts some explanation by a trophic analysis of such distribution ... . The distribution of Patagonian toothfish extends between of 36°30'S and 55°S from 80 to 2500 m ... cm, and most of the adult sizes (>80cm) were found in waters at depths greater than 900 meters ... analysed data in different areas including CCAMLR area, longline or trawl operation fishing is recommended ...
Meeting Document : WG-FSA-97/49 : Auteur(s): Almeyda, S.M., Prenski, L.B.
-
Preliminary insights of Antarctic toothfish sub-adults life-history traits from the southern Weddell Sea (Subarea 48.5)
bottom trawling carried out by the RV Polarstern in the southern Weddell Sea (Subarea 48.5) (PS82, ANT ... -Larsen Ice Shelf. In this document we report first data on individual age, gonad stage of maturity and ... were immature, showing an age range of 10-13 years. Main prey consisted of Antarctic silverfish and ...
Meeting Document : WG-FSA-18/06 : Auteur(s): M. La Mesa, F. Donato and E. Riginella