Search results
-
Quantification of Southern Ocean phytoplankton biomass and primary productivity via satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop)
from a bloom trailing east off the north- ern tip of the Antarctic Peninsula. The Prydz Bay Table ... , starts to contract. The Prydz Bay bloom is larger and more intense. Other coastal blooms are now closer ... of the Weddell Sea contracts, as does the trailing peninsu- la bloom. The Prydz Bay and other coastal blooms ... and the Weddell Sea blooms are much reduced as new sea- ice forms. The Prydz Bay bloom contracts further ... satellite observations and biogeochemical models (submitted to the 2008 Joint CCAMLR-IWC Workshop) Abstract ... / Description: This paper reviews Southern Ocean primary productivity within the framework of satellite remote ... sensing and the development of food-web models. The satellite ocean colour (chlorophyll) data record is ... described, from the Coastal Zone Colour Scanner (CZCS) in the late 1970s through to the Ocean Colour and ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 247–265 : Author(s): P.G. Strutton, N.S. Lovenduski, M. Mongin and R. Matear
-
Fish stock assessment survey in Subarea 48.3
and 12 at Shag Rocks. Due to time constraints and also because some intended sites were unsuitable ... for fishing not all sites were fished. A total of 66 sites was fished at South Georgia and 12 at Shag Rocks ... . The locations of the sites actually sampled are shown in Figure 1 and the positions given in Table 1. The mean ... Each trawling site was monitored acoustically during the course of the haul, no indications were seen ... reduction. No commercial fishing on Champsocephalus gunnari has been reported from the area. It is suggested ... fish survey in the vicinity of South Georgia, CCAMLR Subarea 48.3, is described. Details are given of ... positions of hauls, catch rates and size composition of catches. The standing stock of one of the most ... important commercial species in the area, Champsocephalus gunnari, is shown to have undergone a major ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/8 (Selected Scientific Papers, SC-CAMLR-SSP/8) : 25–67 : Author(s): Everson, I., G. Parkes, K.-H. Kock, S. Campbell, Z. Cielniaszek and J. Szlakowski
-
Characteristics of krill aggregations in the South Sandwich Islands subarea in January–February 2000
características de las distribuciones así como las características físicas de unas 2 400 concentraciones de kril ... forms did not exceed 0.02 g m-3. Krill swarms were recorded in the upper 80 m depth layer. Sites ... Paper Title: Characteristics of krill aggregations in the South Sandwich Islands subarea in ... January–February 2000 Abstract / Description: During the survey of Subarea 48.4 from 17 January to 1 ... characteristics of some 2 400 krill swarms detected in the study area were sized acoustically and are described in ... this paper. Results of comparisons of swarm parameters by area and season are given. The effect of ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 145–164 : Author(s): Kasatkina, S.M., A.P. Malyshko, V.N. Shnar and O.A. Berezhinsky
-
Patagonian toothfish in international waters of the Southwest Indian Ocean (Statistical Area 51)
el 28 de junio y el 27 de julio de 2003 se realizó una campaña de pesca experimental, teniendo como ... y especialmente con la capa intermedia de masas de agua sub- antártica, que actúa como vehículo de dispersión. El ... Dissostichus eleginoides de este estudio (AR51) y de otros bancos, tales como, Meteor, Ob y Lena. Figura ... Paper Title: Patagonian toothfish in international waters of the Southwest Indian Ocean ... and Marion Islands and the Crozet Islands, outside EEZs and CCAMLR waters. A total of 57 hauls was ... from 53 to 1 158 kg. The northward distribution of D. eleginoides is closely related to the extension ... of the Sub-Antarctic Front, and especially the intermediate layer of sub-Antarctic water masses ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 207–214 : Author(s): López Abellán, L.J
-
Selectivity parameters for Notothenia gibberifrons Lönnberg, 1905 and Champsocephalus gunnari Lönnberg, 1905 obtained during “8611 ANTARCTICA [ANTARTIDA]” expedition
, lIevaron a fijarlos como uno de los objetivos prioritarios de la campana "ANTARTIDA 8611 ". Durante la ... quedase un espacio de dos metros entre sus extremos terminales y una holgura lateral suficiente como para ... del 25% y del 75% estimado en Orcadas del Sur, deben tomarse como puramente teoricos, al haber sido ... / Description: Mesh selectivity experiments for several finfish species were conducted during the Spanish ... Antarctic cruise “ANTARTIDA 8611” using the covered codend technique. This paper presents the results ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part II) : 87-105 : Author(s): Balguerías, E.
-
Defining smaller-scale management units to further develop the ecosystem approach in managing large-scale pelagic krill fisheries in Antarctica
cientemente independientes como para sostener la pesca en esa unidad sin que los depredadores estudiados en ... alcanzar el límite de captura si se necesita aplicar restricciones locales en la explotación, así como los ... prédateurs dans l’unité d’exploitation de l’Atlantique Sud (zone 48) fondé sur nos connaissances des ... población local (extremo superior izquierdo) que actúa principalmente como una población fuente con fl ujo ... Paper Title: Defining smaller-scale management units to further develop the ecosystem approach in ... the principles and approach required for developing small-scale management units to take account of ... predators’ needs when managing the fishery for Antarctic krill. It provides a theoretical foundation for ... considering the scales of management units involving the integration of local populations of harvested species ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 117–131 : Author(s): Constable, A.J. and S. Nicol
-
A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
calcula R1 como la proporcion de animales de l+ aiios en la poblacion total en el aiio despuks del desove ... , R2 como la proporcion de animales de 2+ aiios en la poblacion 2 2+ en el segundo aiio despues del ... JR17 (1996/97) donde la densidad de tallas completa se calcula como (a) densidad de tallas ponderada ... se calcula como una distribucion talla-densidad ponderada acusticamente. ... Paper Title: A composite recruitment index to describe interannual changes in the population ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... net hauls. Therefore, when the number of station net hauls is limited, bias is likely to be reduced if ... target net haul data can be included by using the composite recruitment index. This index is used to ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Author(s): Watkins, J.L
-
The use of analysis of penguin stomach contents in simultaneous study of prey and predator parameters
se propone como el correcto enfoque para analisis, porque la falta de separaci6n entre los ... como metodos alternativos, la reproducci6n de muestras de un mismo pingOino 0 estudiando porciones del ... Paper Title: The use of analysis of penguin stomach contents in simultaneous study of prey and ... sensitive to the statistical assumptions made during the analysis of data. The nested ANOVA method is ... proposed as being the correct approach for analysis because lack of independence between krill specimens ... found in the stomach of a given penguin prevents the pooling of krill lengths from different samples ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/6 (Selected Scientific Papers, SC-CAMLR-SSP/6) : 367–375 : Author(s): Marschoff, E. and B. González
-
Intra-annual variability in the density of Antarctic krill (Euphausia superba) at South Georgia, 2002–2005: within-year variation provides a new framework for interpreting previous ‘annual’ estimates of krill density
during a calibration exercise conducted in Stromness Bay, South Georgia. Mooring data analysis Mean ... y con tiempo como variable independiente dio cuenta del 64% de la variación observada de una semana ... to the presence of large icebergs at the site, and no data were obtained between 29 April and 12 November 2003 ... Paper Title: Intra-annual variability in the density of Antarctic krill (Euphausia superba) at ... profilers (300 kHz) and echo sounders (125 kHz) were deployed on moorings on- and off-shelf to the northwest ... = 64.2). A sinusoidal regression model (period = 52 weeks) with time as the independent variable ... explained 64% of the observed week-to-week variation. Estimates of krill density from moored instruments ...
Science Journal Paper : CCAMLR Science, Volume 14 (CCAMLR Science, Volume 14) : 27–41 : Author(s): Saunders, R.A., A.S. Brierley, J.L. Watkins, K. Reid, E.J. Murphy, P. Enderlein and D.G. Bone
-
Indices of prey availability near the Seal Island CEMP site: 1990 to 1996
Paper Title: Indices of prey availability near the Seal Island CEMP site: 1990 to 1996 Abstract ... of the Seal Island CEMP site during the austral summers of 1990 to 1996. The indices are measures of average ... Indices of prey availability near the Seal Island CEMP site: 1990 to 1996 ... Island CEMP site during the austral summers of 1990 to 1996. The indices are measures of average prey ... AVAILABILITY NEAR THE SEAL ISLAND CEMP SITE: 1990 TO 1996 R.P. Hewitt, G. Watters and D.A. Demer Southwest ... availability are calculated from surveys conducted in the vicinity of the Seal Island CEMP site during ... alentours du site CEMP de l'ile Seal pendant les 6tks austraux de 1990 a 1996. Ces indices sont des mesures ... . Table 2: Annual indices of prey availability near the Seal Island CEMP site. Blank cells indicate ...
Science Journal Paper : CCAMLR Science, Volume 4 (CCAMLR Science, Volume 4) : 37–45 : Author(s): Hewitt, R.P., G. Watters and D.A. Demer