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Differentiation of independent populations of Antarctic krill
-populations is expected to correspond with the number of quasi-stationary cyclonic water circulations. At ... ) population of E. superba" (Makarov, 1972). In a later paper (Makarov, Maslennikov, 1975) after the ... waters. Biologiya Morya, N 3, P. 37-43. Marr J.W.S. 1962. The natural history and geography of the ... expected to correspond with the number of quasi-stationary cyclonic water circulations. At present, at ... OF THE ANTARCTIC KRILL In recent years, several countries (Poland, Federal Republic of Germany ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Autor(es): USSR
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Scientific Abstracts 1999
‘submitted’ or ‘in press’ with details of the publisher, if known; (iii) scientific papers not intended for ... were submitted. Each abstract is preceded with a unique CCAMLR document number, e.g. SC-CAMLR-XVIII/BG ... in summer and winter is still down by 80 to 90% in comparison to the early 1990s, with summer adult ... began in the late 1960s with exploitation of the marbled rockcod, Notothenia rossii, in the South ... seals have epi- sodic bouts of suckling (1–3 days), alter- nating with foraging trips (3–10 days ... __________________________________________________________________________________________ (p < .001) among 8 consecutive years at Bird Island, South Georgia. Foraging trip duration ...
Document : Site Section: Publications
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Whales: Trophic modelling of the Ross Sea
in the 1960s and early 1970s (Shevchenko 1975; Yukhov et al. 1975). However, these minke whales may ... in the study area for the summer only (3 months of the year). 3.3 Population model We used a ... that Antarctic orca have peak birthing rates in late summer/early autumn but that births occur year ... region for only 3 months of the year (Kasamatsu & Joyce 1995; Knox 2007). Newborn sperm whales are ...
Document : Site Section: Publications
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Has krill fishing the potential to adversely affect recruitment in Antarctic notothenioid fishes?
Abstract: A few years after krill (Euphausia superba) fishing had started in 1972/73, it became ... known that early life stages of Antarctic fish are associated with krill aggregations and are subject to ... 25 years later WG-FSA is still not in the position to estimate the amount of fish by-catch reliably ...
Meeting Document : WG-FSA-14/66 : Autor(es): K.-H. Kock (Germany) and C.D. Jones (USA)
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Scientific Abstracts 2004
’ with details of the publisher, if known; (iii) scientific papers not intended for publication, which ... submitted. Each abstract is preceded with a unique CCAMLR document number, e.g. SC-CAMLR-XXII/BG/11 ... neck collars of man-made debris. Data are compared with results from a parallel study undertaken at ... ). The middle-length and small-length groupings are associated with Weddell Sea waters. An additional ... temperature anomalies at lag periods of approximately three to four years. Crosscorrelation analyses with ... , unpublished). During the 13th year of standardised beach surveys of man-made debris at Bird Island, South ...
Document : Site Section: Publications
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Telemetry monitoring of ecological resources
including paper recorders and data recording using microprocessors with semiconductor memory. Satellite ... with adhesive will be lost during the animals molt and thus have a useful life of a year or less ... 1960s. Monitoring activity has steadily increased since that time with an increase in numbers and ... 3. Church, K.E. (1980). Expanded radio tracking potential in wildlife investigations with the use ... . (1972). Radio-tagging falconiform and strigiform birds. Raptor Research ~(3) : 93-102 12. Siniff ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 495-511 : Autor(es): Kuechle, V.B.
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MULTIPLE TIME SCALES OF VARIABILITY IN THE KRILL POPULATION AT SOUTH GEORGIA
conducted in the early, middle and late period of the summers of 2001 to 2005, together with krill ... abundance was highest during the middle of the summer in 3 years and in the late period in 2 years; in the ... population size structure over the same period from predator diet data, were used with a krill population ... latter there was evidence that krill recruitment was delayed by several months. A model scenario with ...
Meeting Document : WG-EMM-08/48 : Autor(es): K. Reid, J. Watkins, E. Murphy, P. Trathan, S. Fielding and P. Enderlein (United Kingdom)
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Krill population dynamics at South Georgia: implications for ecosystem-based fisheries management
biomass. Krill abundance was highest during the middle of the summer in 3 years and in the late period in ... from surveys conducted in the early, middle and late period of the summers of 2001 to 2005, together ... recruitment in each year showed the greatest correlation with the acoustic series. The results are consistent ... with krill population size structure over the same period from predator diet data, were used with a ...
Meeting Document : WG-EMM-10/P08 : Autor(es): K. Reid, J.L. Watkins, E.J. Murphy, P.N. Trathan, S. Fielding and P. Enderlein
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Scientific Abstracts 2002
‘submitted’ or ‘in press’ with details of the publisher, if known; (iii) scientific papers not intended for ... were submitted. Each abstract is preceded with a unique CCAMLR document number, e.g. SC-CAMLR-XXI/BG/11 ... of entanglements showed an increase from recent years, with 20 entan- glements reported over winter ... man-made debris. Data are compared with results from a parallel study undertaken at Bird Island ... - old (R2) krill differ substantially between years. However, results were in conformity with the ... . Technological information may provide early warnings of developments that could later herald an expansion in ...
Document : Site Section: Publications
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Analysis of haul data from the South Georgia krill fishery
existed between years, with 1995 being a better season than either 1994 or 1996. Aspects of mesoscale ... several hauls were undertaken by each vessel (average 7.9 in 1993,9.9 in 1995, and 7.0 in 1996), with ... hauls producing higher catch rates during the middle of the day. Individual hauls were examined to ... establish the time required for each phase of the fishing operation. The times associated with shooting and ... deviation (SD) and median with first and third quartile. Year 1994 1995 1996 n 2 025 3 035 2 854 ... years, with 1995 being a better season than either 1994 or 1996. Aspects of mesoscale variability are ... . Thus, the total number of vessel fishing days was variable between years, with 255 vessel days in ... ., 1997), however the movement towards the west does not occur in all years (Figure 3). The movement is ...
Science Journal Paper : CCAMLR Science, Volume 5 (CCAMLR Science, Volume 5) : 9–30 : Autor(es): Trathan, P.N., I. Everson, E.J. Murphy and G.B. Parkes