Resultados de la búsqueda
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Preliminary report of sound-speed contrast and density of krill measured on board RV Kaiyo Maru
characteristics of the TS. For the calculation by the acoustical scattering model, the information of size ... , morphology, orientation, and material properties of krill are required. There are two important material ... ) and the other is the ratio of the sound speed in animal to that in the surrounding water (sound-speed ... contrast.). Although these parameters are inevitable for the model calculation, the reports of them are ...
Meeting Document : WG-EMM-05/36 : Autor(es): Y. Takao, H. Yasuma, R. Matsukura and M. Naganobu (Japan)
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Conservation Measure Conservation Measure 41-01 (2008)
1). Región UIPE Límite geográfico 48.6 A De 50°S 20°W, derecho al este hasta 1°30'E, derecho al sur ... a lo largo de la costa hasta 10°E, derecho al norte hasta 60°S. F De 60°S 20°E, derecho al este hasta 30 ... hasta el 31 de agosto de 2009 se presentarán a la CCRVMA antes del 30 de septiembre de 2009 de manera ... mortalidad incidental de estos animales. 3. De las pesquerías de palangre se recopilarán ... General measures for exploratory fisheries for Dissostichus spp. in the Convention Area in the ... Subarea 88.1 Subarea 88.2 Species: Dissostichus spp. Limitations: Except for waters adjacent to the ... Kerguelen and Crozet Islands Except for waters adjacent to the Prince Edward Islands Adopted at Meeting ...
Conservation Measure : 41-01 (2008)
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Conservation Measure Conservation Measure 41-01 (2009)
1). Región UIPE Límite geográfico 48.6 A De 50°S 20°W, derecho al este hasta 1°30'E, derecho al sur ... a lo largo de la costa hasta 10°E, derecho al norte hasta 60°S. F De 60°S 20°E, derecho al este hasta 30 ... hasta el 31 de agosto de 2010 se presentarán a la CCRVMA antes del 30 de septiembre de 2010 de manera ... de cualquier mortalidad incidental de estos animales. 3. De las pesquerías de palangre se recopilarán ... General measures for exploratory fisheries for Dissostichus spp. in the Convention Area in the ... Subarea 88.1 Subarea 88.2 Species: Dissostichus spp. Limitations: Except for waters adjacent to the ... Kerguelen and Crozet Islands Except for waters adjacent to the Prince Edward Islands Adopted at Meeting ...
Conservation Measure : 41-01 (2009)
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Preliminary report on biological observations and exploratory fishing data collected in the South Georgia area during the 1985/86 cruise of MT Carina
Paper Title: Preliminary report on biological observations and exploratory fishing data collected ... survey in South Georgia waters was undertaken from November 1985 to January 1986 as a part of the on ... -going fish stock monitoring program conducted by the Sea Fisheries Institute, Gdynia. Codends of two ... fish samples were taken for biological analysis. Random length measurements and detailed biological ... fed on benthic organisms. In the case of N. rossii only two samples were taken for biological ... + Age groups (years) O~~==~,==~==~,===;~~,==~==~,==~~ Figure 8 20 30 40 ~ Total length (cm ... stomach fullness on a 5-grade scale (0-4). Scales and otoliths were collected for later ageing of fish ... nototheniids. The length distribution of P. georgianus, especially in the last two years, did not undergo ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 65-97 : Autor(es): Kreft, K. and J. Szynaka
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
Paper Title: Evaluating the impact of multi-year research catch limits on overfished toothfish ... additional fisheries removals for research purposes needs to be evaluated against the risk that such catches ... assessed in this study indicate that, where a stock has been depleted to at or below 20% of the median ... should be avoided to ensure that research does not significantly impact on the recovery of depleted ... 30 tonnes per year for 5 years) to assumptions about selectivity (scenarios 7 to 9), size-at ... ch 1.0 0.9 0.8 0.7 0.6 Figure 2: Impact of a 5-year research fishery on recovery 20 years after ... an approximately linear response between stock status 20 years after historical over- fishing ceased ... is greater than 20 years are shaded light grey and those where recovery is greater than 30 years are ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 47–55 : Autor(es): Welsford, D.C
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Managing fisheries to conserve the Antarctic marine ecosystem: practical implementation of the Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR)
decimated in the first two years of the fishery following catches of about 500,000t. Two other species have ... problems in developing a program to monitor for the effects of fishing and the recent discussions on how to ... deep longlining for toothfish (Dissostichus eleginoides and D. mawsoni) has caused a resurgence of ... Antarctic arose primarily from concern over potential effects of a fishery for the very abundant Antarctic ...
Meeting Document : SC-CAMLR-XVIII/BG/26
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Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the Southern Ocean Atlantic sector
Peninsula and the South Shetland Islands, the data indicate a two-layered pattern based on standardised ... Paper Title: Biogeographic patterns of benthic invertebrate megafauna on shelf areas within the ... shelf communities ideally incorporates a range of data on physical, environmental and biological ... sector, from scientific survey trawl catches, reveals distributional patterns. For the northern Antarctic ... averaged 17.9 m and 9.1 m respectively. The target time for a gear deployment was 30 min on the bottom ... target time for a gear deployment was 30 min on the bottom. Time on the bottom was measured by means of ... Islands, the data indicate a two-layered pattern based on standardised total biomass data and the ... communities for com- parative purposes, with an ultimate aim of identi- fying and understanding broader-scale ...
Science Journal Paper : CCAMLR Science, Volume 15 (CCAMLR Science, Volume 15) : 167–192 : Autor(es): Lockhart, S.J. and C.D. Jones
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Temporal variability and the interrelationships between CEMP parameters collected on Adélie penguins at Béchervaise Island
examined for Adélie penguins over a period of 12 years. Data were collected from 1990/91 to 2001/02 at ... Paper Title: Temporal variability and the interrelationships between CEMP parameters collected on ... chicks when two-thirds were crèched and fully crèched chick counts) display large temporal variability ... while other parameters, such as arrival counts and incubating nest counts, are more stable between years ... movement between the sea and the colony is obtained on Béchervaise Island from an Automated Penguin ... Monitoring System (APMS) (see Kerry et al. (1993) for details on the APMS). Penguin weights for the ... presented in this paper are for Adélie penguins on Béchervaise Island (67º35’S 62º49’E), for the 1990/91 ... (Kerry et al., 2000). For consistency, a similar subset of years was exam- ined in the correlation ...
Science Journal Paper : CCAMLR Science, Volume 10 (CCAMLR Science, Volume 10) : 75–90 : Autor(es): Emmerson, L.M., J. Clarke, K.R. Kerry and C. Southwell
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Estimates of circumpolar abundance of Antarctic krill based on recent acoustic density measurements
Paper Title: Estimates of circumpolar abundance of Antarctic krill based on recent acoustic ... historical information on the overall range of krill. The biomass estimates fall between 60 and 155 million ... estimates and others can be explained by a number of factors such as: an underestimation of the range or the ... of the demand for krill by predators. Even if these low krill biomass estimates are correct, regional ... conducted regularly in some areas for nearly 20 years, and there is now a good appreciation of the range ... catch limit (1.5 million tonnes per year) for Area 48, based on surveys in Subareas 48.1,48.2 and 48.3 ... krill depend on a definition of the range of the species and an understanding of the typical density ... uses recent regional estimates of krill density together with historical information on overall krill ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 87–99 : Autor(es): Nicol, S., A.J. Constable and T. Pauly
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Conservation Measure Conservation Measure 41-01 (2010)
UIPE Límite geográfico 48.6 A De 50°S 20°O, derecho al este hasta 1°30'E, derecho al sur hasta 60 ... a lo largo de la costa hasta 10°E, derecho al norte hasta 60°S. F De 60°S 20°E, derecho al este hasta 30 ... de recopilación de datos y de investigación, se presentarán a la CCRVMA antes del 30 de septiembre de 2011 ... mortalidad incidental de estos animales. 3. De las pesquerías de palangre se recopilarán los siguientes ... General measures for exploratory fisheries for Dissostichus spp. in the Convention Area in the ... Subarea 88.1 Subarea 88.2 Species: Dissostichus spp. Limitations: Except for waters adjacent to the ... Kerguelen and Crozet Islands Except for waters adjacent to the Prince Edward Islands Adopted at Meeting ...
Conservation Measure : 41-01 (2010)