Résultats de la recherche
-
Biomass of Antarctic krill around South Shetland using 2-dB difference method in April 2016
operated by Norway, Korea, and Japan, etc. Major fishing area is the surroundings of South Sheltland where ... . CCAMLR (Convention for the Conservation of Antarctic Marine Living Resources) is currently implementing a ... utilize Krill resources continuously. This study is aimed to estimate the density and the biomass of Krill ... that inhabit in the surroundings of South Sheltland by using acoustics. An acoustic survey was ...
Meeting Document : WG-EMM-16/60 : Auteur(s): Delegation of the Republic of Korea
-
Joint research proposal for the Dissostichus spp. exploratory fishery in East Antarctica (Divisions 58.4.1 and 58.4.2) by Australia, France, Japan, Republic of Korea and Spain
Australia (commenced 2015/16), France (commencing 2016/17), Japan (commencing 2016/17), Republic of Korea ... plan to be presented by all proponents of research in Divisions 58.4.1 and 58.4.2 to WG-FSA-16 (WG-SAM ... progress an assessment of toothfish stock/s in the area (WG-SAM-16 para. 3.13). We present here an updated ... research proposal including the research plans of Australia (WG-SAM-16/09), France (WG-SAM-16/01 & 16 ...
Meeting Document : WG-FSA-16/29 : Auteur(s): Delegations of Australia, France, Japan, Republic of Korea and Spain
-
Spatio–temporal dynamics in maturation and spawning of Patagonian toothfish Dissostichus eleginoides on the subantarctic Kerguelen Plateau
Abstract: This study investigated maturation and spawning of Patagonian toothfish Dissostichus ... Sector of the Southern Ocean based on gonads and otoliths collected between years 2004–2015, and using ... histological analyses and calibration of macroscopic staging criteria. Dissostichus eleginoides at HIMI spawn ... throughout the late autumn and winter months of May–August, and spawning activity is concentrated on slopes ...
Meeting Document : WG-FSA-17/P04 : Auteur(s): P. Yates, P. Ziegler, D. Welsford, J. McIvor, B. Farmer and E.Woodcock
-
Overview of global trade in toothfish (Dissostichus spp.)
GLOBEFISH unit, an analysis was conducted for the five-year period of 2012–2016 on the global trends of the ... . Captures the global trade of toothfish. The analysis showed that over this five-year period quantity of ... imports globally have seen an increase of 16.08% and exports have seen an increase in 15.54%. The average ... global unit value price of toothfish products has also shown an increase with imports increasing by 19.68 ...
Meeting Document : CCAMLR-XXXVI/BG/05 Rev. 1 : Auteur(s): CCAMLR Secretariat
-
Change in environmental conditions of the Southern Ocean observed by satellites and data-assimilating models between 1981 and 2019
Abstract: We provide a summary of environmental change in the Southern Ocean over the period of ... concentration from merged observation of SeaWiFS and MODIS-Aqua (1987–2019); (2) sea-surface temperature (SST ... ) from the AVHRR series of NOAA satellites (1981–2019); (3) spatial gradient of SST (as an indicator of ... model (VGPM); (6) estimates of mixed layer depth from the data-assimilating US Navy hindcast model HyCOM ...
Meeting Document : WG-EMM-2019/39 : Auteur(s): M. Pinkerton
-
First increment validation of Patagonian toothfish (Dissostichus eleginoides) from Heard Island
one opaque and one translucent increment is formed each year on the sectioned face of sagittal ... routinely ageing D. eleginoides, resulting in differences of ageing data presented. One area that was ... assumed to cause interpretation differences was the position of the first increment that corresponded with ... the end of the first year of growth. While there is a general consensus that the observed increments ...
Meeting Document : WG-FSA-05/61 : Auteur(s): K. Krusic-Golub, C. Green and R. Williams (Australia)
-
Genetic variation among populations of the Antarctic toothfish: evolutionary insights and implications for conservation
with over 70% of the world’s fish stocks being fully exploited and in many cases overexploited. On top ... of this, the Commission for the Conservation of Antarctic Marine Living Resources (CCAMLR) has ... Southern Ocean. The primary target of these new commercial fishing ventures is the large pelagic ... available on the demography, genetics or life history of this large fish. Without such information we have ...
Meeting Document : WG-FSA-01/69 : Auteur(s): R.W. Parker, K.N. Paige and A.L. DeVries (USA)
-
Natural fluctuations in the abundance of krill with due regard to global climate changes in the southern hemisphere: forecasting possibilities
Abstract: The eco systematic studies in biology and hydrology conducted in the Atlantic sector of ... ;success" in the reproduction of krill (Euphausia superba) and salp (Salpa tompsoni) (SC-CAMLR-XVI4 ... ; SC-CAMLR-XVV3). The analysis of multiannual observations (1977-1997) conducted by Siegel (Siegel et ... between the strong year-classes of krill and severe winters when the ice-cover extended itself northwards ...
Meeting Document : WG-EMM-98/52 : Auteur(s): K. Shust (Russia)
-
Estimates of sustainable yield for 50 data-poor stocks in the Pacific coast groundfish fishery management plan
Abstract: The Magnuson-Stevens Fishery Conservation and Management Reauthorization Act of 2006 ... of sustainable yield for many these species were previously based on undocumented, ad-hoc analyses ... . We present estimates of sustainable yield for 50 of these stocks using two recently developed models ... designed to inform management of data-poor stocks. These models rely on recently reconstructed time series ...
Meeting Document : WG-SAM-11/P1 : Auteur(s): E.J. Dick and A.D. McCall
-
Spatial distribution of Champsocephalus gunnari in Subarea 48.3. Some implications for parameter estimation
Abstract: Results of the analysis of three consecutive cruises to subarea 48.3 are analyzed. A ... significant variance component associated with the formation of clusters of stations was found as well as a ... (as in the estimation of the variance of the mean density) might result in a gross underestimation of ... the variance. The spatial pattern of density across years might be applied to construct a model of ...
Meeting Document : WG-FSA-96/30 : Auteur(s): Calcagno, J., Gonzalez, B., Marschoff, E.