Resultados de la búsqueda
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TIMING OF CLUTCH INITIATION IN PYGOSCELIS PENGUINS ON THE ANTARCTIC PENINSULA: TOWARDS AN IMPROVED UNDERSTANDING OF OFF-PEAK CENSUS CORRECTION FACTORS
statistical model for determining the peak of clutch initiation for any given year and site and, along with a ... Abstract: Penguin censuses on the Antarctic Peninsula are often subject to logistical challenges ... that preclude nest censuses being conducted at the peak of egg laying as established by the CCAMLR ... Ecosystem Monitoring Program (CEMP) (Scientific Committee for the Conservation of Antarctic Marine Living ...
Meeting Document : WG-EMM-PSW-08/15 : Autor(es): H.J. Lynch, W.F. Fagan, R. Naveen, S.G. Trivelpiece and W.Z. Trivelpiece (USA)
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Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region
Paper Title: Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross ... vulnerable marine ecosystems (VMEs) requires a specific list of the taxa that are considered vulnerable in ... the fishery being assessed. New Zealand identified an interim list of taxa to monitor in fishery by ... -catch in the Ross Sea as part of its benthic fisheries impact assessment. The rationale for including or ... been identified to genus level. Although no data on the longevity of antipathar- ians in the Southern ... fishery depths, but no soft corals have been observed deeper than 2 000 m. Some of the deep-sea species ... Balleny Islands and northern area seamounts. No samples have been collected from the eastern Ross Sea ... IDENTIFYING TAXONOMIC GROUPS VULNERABLE TO BOTTOM LONGLINE FISHING GEAR IN THE ROSS SEA REGION S.J. Parker ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 105–127 : Autor(es): Parker, S.J. and D.A. Bowden
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Relationship with the Antarctic Treaty System
increasing number of CPs, including States that have no traditional linkages to the Antarctic Treaty (or the ... Antarctic Treaty and CCAMLR. Commission Commission – No action necessary 2.1.1.3 Furthermore, the RP saw ... the Convention Recommendation Responsible body Activities to date Status 2.1.1.1 Given the ... ATS), the RP sees virtue in reinforcing the obligations of Articles III, V (and IV.1). This might be ...
Page : Site Section: The Organisation
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The utilization of seabird censuses for krill monitoring
Paper Title: The utilization of seabird censuses for krill monitoring Abstract / Description ... : The possibility of using bird observations made at sea as a means of monitoring krill in the Antarctic ... Ocean is explored. No variation source directly linked with krill was identified by means of ... krill abundance. A vector close to multi-normality was obtained, thus suggesting that refinements of the ... of analysis I. From the correspondence analysis of the whole set of data, no major axis can be ... the same methods with the following summary of results No krill regression on species is worth ... regression curves. No such method is attempted here, because of the fact that directions to be tested are ... - 393 - THE UTILIZATION OF SEABIRD CENSUSES FOR KRILL ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 393-425 : Autor(es): Marschoff, E.R., J.G. Visbeek and L.R. Fontana
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Some thoughts on precautionary measures for the krill fishery
Paper Title: Some thoughts on precautionary measures for the krill fishery Abstract / Description ... : The concept of precautionary measures for krill is discussed. A precautionary catch limit, based on ... the potential yield model developed by the CCAMLR Scientific Committee's Working Group on Krill ... precautionary catch limit in large areas, such as Statistical Area 48, but the approach requires considerable ... size is derived from field counts which, since the locations of these sites are known, can be ... some sites, such as South Georgia; and (iv) fine-scale catch and effort data from the krill fishery ... potential foraging range of the breeding sites of the dominant land-based predators. The extent of such a ... zone relative to the predator breeding sites would be 125 km at South Georgia (Figure 1). Outside of ...
Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 1–11 : Autor(es): Everson, I. and W.K. de la Mare
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Connectivity and population structure in Pleuragramma antarcticum along the west Antarctic Peninsula
Marguerite Bay, with no mixing between. The presence of a single length mode at Charcot Island and Marguerite ... Bay corresponding to the year class found during GLOBEC 2001 suggested a dominant cohort and no local ... , discrete populations along the Western Antarctic Peninsula (WAP), or whether the shelf circulation leads to ... , reduction in sea-ice along the WAP may lead to extinction of local populations through drastic mortality of ...
Meeting Document : WG-FSA-10/16 : Autor(es): J. Ashford, J. Ferguson, A. Piñones, J. Torres and W. Fraser
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Evidence of Vulnerable Marine Ecosystems documented via submarine in the Antarctic Sound and Gerlache Strait (Subarea 48.1)
cold-water coral taxa not observed at the sites that were triggered as vulnerable by a high abundance ... Abstract: In order to adequately achieve CCAMLR’s conservation objectives and preserve the ... biodiversity of the Southern Ocean, a variety of ecosystems must be protected. This holds especially true for ... the benthic communities of this region that are characteristically mosaic in their distributions. As ...
Meeting Document : WG-EMM-18/35 : Autor(es): S. Lockhart and J. Hocevar
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Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed with mitochondrial and intron DNA markers
digested with the restriction enzymes, but there was no population differentiation among the three sea ... Paper Title: Low genetic diversity in the Antarctic toothfish (Dissostichus mawsoni) observed ... appeared to be characterised by low diversity; no genetic variation was detected with restriction enzyme ... digests of nine sub-regions of the mitochondrial genome. Polymorphisms were found in four of seven introns ... were found in four of seven introns digested with the restriction enzymes, but there was no population ... MtDNA RFLPs No genetic variation was detected with the RFLP method for the nine regions of mtDNA in ... , 14 nt). The D. mawsoni amplicon contained two variable sites in the con- trol region. One SS fi sh ... the 57 available sequences. Analysis of molecular variance (AMOVA) showed no signifi cant dif fer- en ...
Science Journal Paper : CCAMLR Science, Volume 12 (CCAMLR Science, Volume 12) : 43–51 : Autor(es): Smith, P.J. and P.M. Gaffney
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Biological characteristics of Antarctic fish stocks in the southern Scotia Arc region
Islands. Length compositions and the proportion of large (= old) specimens in the populations provided no ... Paper Title: Biological characteristics of Antarctic fish stocks in the southern Scotia Arc ... region Abstract / Description: Commercial exploitation of finfish in the southern Scotia Arc took place ... from 1977/78 to 1989/90, and was in its heyday from 1977/78 to 1981/82. Except for Elephant Island, the ... the populations provided no evidence of illegal fishing since the closure of the region some 10 years ... measurements and cluster linkage methods revealed no significant differences from the results of the methods ... (= old) specimens in the catches suggested that no substantial illegal fishing had taken place since ... maturity stage 5/2 or specimens in stage 3, but no specimens in actual spawning condition (stage 4). The ...
Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 1–41 : Autor(es): Kock, K.-H., C.D. Jones and S. Wilhelms
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Report on the CCAMLR Marine Debris monitoring program: 2018 update
predominantly packaging items and plastics. There is no evidence of an increase in debris at monitored sites ... Abstract: Data from South Africa, the United Kingdom, the United States and France were received ... for the 2018 marine debris monitoring season. Debris items collected during beach surveys remain ... , but it remains ubiquitous in the CCAMLR area. Due to the limited scope of submitted data, as well as ...
Meeting Document : WG-FSA-18/18 : Autor(es): CCAMLR Secretariat