Résultats de la recherche
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APPLYING A TS-PROBE FOR MEASURING ANTARCTIC KRILL (EUPHAUSIA SUPERBA) TARGET STRENGTH IN SITU: PROCEDURES AND DATA ANALYSIS
strength of Antarctic krill in situ at short range. The experimental methods, procedure for data retrieval ... operating at 38, 120 and 200 kHz is installed in the probe, connected to three pressure resistant ... transducers with 7o half power beam opening angles. The orientation of the probe was monitored with sensors ... transducer platform with the purpose of measuring the orientation of the organisms. All system communication ...
Meeting Document : SG-ASAM-09/13 : Auteur(s): G. Skaret, L. Calise and E. Ona (Norway)
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Revised research plan for the exploratory fisheries for Dissostichus spp. in Division 58.4.1 in 2014/15
applied following the procedure recommended at the last WG-FSA meeting. The results of calculations were ... that using the CPUE method in each block. As we proposed at the last WG-SAM meeting, since we have yet ... appropriate catch limit, we propose to continue the current research operation for at least 3 years with the ... same sample size as decided at the last CCAMLR meeting in the current research blocks, in order to ...
Meeting Document : WG-FSA-14/18 : Auteur(s): Delegation of Japan
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Predicting fishing ground accessibility in the Antarctic Weddell Sea
by fishery vessels at a given time, and of (ii) repeated accessibility, i.e. the probability that a ... conditions almost 50% of the entire WSMPA Planning Area is not suitable for fishery vessels at any time of ... Abstract: Sea ice is a major constraint of fishery performance in the Southern Ocean seasonal sea ... establish statistical models of (i) accessibility, i.e. the probability that a particular area is navigable ...
Meeting Document : WG-SAM-18/01 : Auteur(s): H. Pehlke, K. Teschke and T. Brey
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Age-length key for Champsocephalus gunnari from Subarea 48.3; Holmberg survey, February 1995
on the readings of otoliths collected during the R/V Holmberg survey in February 1995. Small and ... medium sized fish (total length 12-34 cm) predominated in the samples at South Georgia, while larger ... specimens (>34 cm) were scarce. Age groups 1-5 and 2-4 were well represented at South Georgia and Shag ... Rocks respectively. At South Georgia, a good agreement between modes in the size distribution and mean ...
Meeting Document : WG-FSA-95/37 : Auteur(s): Casaux, R., Marschoff, E., Barrera-Oro, E.
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Quantifying within- and between-season variability in Adélie penguin fledgling weights: statistical and practical implications for detecting change
Abstract: We develop statistical models of Adélie penguin fledgling weight data collected at ... attempts at incorporating multiple sources of variability rather than final products because a number of ... issues of continuing to measure fledgling weights at Béchervaise Island either by the current or the ... Béchervaise Island and use them in a power analysis as a continuation of the CEMP review. The statistical ...
Meeting Document : WG-EMM-05/20 : Auteur(s): L. Emmerson, C. Southwell and J. Clarke (Australia)
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Light-mantled sooty albatross on Campbell Island, 1995–96: a pilot investigation
Abstract: A pilot census of light-mantled sooty albatross Phoebetria palpebrata nests was ... conducted on western Campbell Island in November 1995. An extrapolation from 292 nests counted on 19 km of ... were at least 1600 nests on the island in 1995-96. Standard vantage points were established for future ... -February. Five nests at Beeman Hill and 12 nests at north-west Lyall ridge were monitored closely, and ...
Meeting Document : SC-CAMLR-XVII/BG/09 : Auteur(s): Delegation of New Zealand
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Norwegian Cruise to Kong Håkons VII Hav 28 February – 10 April 2019
April 2019. Our focus area was the ocean south of 65°S east of 0° meridian and 13.5° E (Fig 1) with a ... . At different depths, we ran ROV transects filming and retrieving samples for later species ... identification. The ROV transects made up the basis of our intensive study areas. Each intensive study area ... . We rad oceanographic sections across and along the Astrid ridge and at 6,2° E. Due to heavy ice we ...
Meeting Document : WG-EMM-2019/48 : Auteur(s): H. Steen
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A SIMULATION STUDY TO DETERMINE THE RELATIONSHIP BETWEEN SAMPLING INTENSITY AND PRECISION WHEN ESTIMATING AVAILABILITY FUNCTIONS FOR BREEDING ADÉLIE PENGUIN COLONIES
frequency of sampling attendance at Adélie penguin breeding colonies would affect models of attendance for ... . Subsampling at periodicities of six days or greater did not adequately recover known simulated model structure ... Abstract: Automated camera systems deployed at Adélie penguin breeding colonies provide daily ... consuming and expensive to process, and it is of interest to determine if such data could be subsampled with ...
Meeting Document : WG-EMM-11/12 : Auteur(s): J. McKinlay and C. Southwell (Australia)
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The Ross Sea region Marine Protected Area Research and Monitoring Plan (WG-EMM 2017)
the Ross Sea region MPA. The RMP is required to be introduced to CCAMLR at the annual meetings of the ... comments described at the end of this document. Author(s): A. Dunn, M. Vacchi and G. Watters Title: The ... Abstract: The Ross Sea region MPA Research and Monitoring Plan Workshop (WS-RMP) was held at the ... Palazzo Farnesina (Ministry of Foreign Affairs and International Cooperation, MAECI) in Rome from 26–28 ...
Meeting Document : WG-EMM-17/43 : Auteur(s): A. Dunn, M. Vacchi and G. Watters
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LENGTH-BASED ASSESSMENT FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
data, yield an estimate of the population numbers-at-length. A length-based population projection is ... -area 48.3 employs the CMIX and GYM packages, deriving population numbers-at-age then projecting these ... identification of cohorts from the survey model, given the differential age structures observed in the population ... at Shag rocks and around South Georgia. In this paper we propose a length-based approach that removes ...
Meeting Document : WG-SAM-09/15 : Auteur(s): R.M. Hillary, D.J. Agnew and R. Mitchell (United Kingdom)