Resultados de la búsqueda
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Using ecosystem monitoring data to detect impacts
average health or performance of individuals within indi- cator populations. Such parameters do not ... ; Constable, 2001). The CCAMLR Ecosystem Monitoring Program (CEMP) is intended to detect fisheries impacts ... the monitored predator (Reid and Croxall, 2001; Barlow et al., 2002; Reid et al., 2005). It has ... could be integrated into the manage- ment of krill fisheries (Constable, 2001, 2002), for example by ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 197–212 : Autor(es): Hill, S.L., J. Forcada, P.N. Trathan and C.M. Waluda
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The use of patent databases to predict trends in the krill fishery
/ Description: The fishery for Antarctic krill (Euphausia superba) caught 210 000 tonnes in 2009/10 with ... Antarctic krill (Euphausia superba) caught 210 000 tonnes in 2009/10 with vessels from six of CCAMLR’s 25 ... Updated information on krill processing, market developments, economic analyses. 2001 SC-CAMLR, 2001 ... , paragraph 2.4 Information on economics of the fishery and market developments. 2001 SC-CAMLR, 2001 ... patents) patents lodged in each of the two previous 10-year periods. There has been a notable increase ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Autor(es): Foster, J., S. Nicol and S. Kawaguchi
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Interactions of Patagonian toothfish fisheries with killer and sperm whales in the Crozet Islands Exclusive Economic Zone: an assessment of depredation levels and insights on possible mitigation strategies
pods were involved in 81.3% of the interactions. Significant variations of interaction rates with ... : Mean interaction rates of killer and sperm whales with longlines between 2003 and 2008. 0 10 20 30 ... the presence of killer whales when the latter started to interact with the lines at least 10 minutes ... pods were involved in 81.3% of the interactions. Significant variations of interaction rates with ... Hofman, 1999). Among such conflicts, depredation, which is defined as an operational interaction and ...
Science Journal Paper : CCAMLR Science, Volume 17 (CCAMLR Science, Volume 17) : 179–195 : Autor(es): Tixier, P., N. Gasco, G. Duhamel, M. Viviant, M. Authier and C. Guinet
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Comparison of two methods to assess fish losses due to depredation by killer whales and sperm whales on demersal longlines
interaction over access to resources, which often includes a combination of socio-economic, ecological and ... conservation issues. However, estimating the amount of resource depredated can be especially challenging when ... addition to providing a methodology that could be used in other areas with depredation issues, these ... elsewhere in the world. For instance, killer and sperm whales were reported to interact with less than 10 ... human–wildlife interaction over access to resources, which often includes a combination of socio ... -economic, ecological and conservation issues. However, estimating the amount of resource depredated can be ... with depredation issues, these findings emphasise the critical importance for fishery managers and ...
Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 1–14 : Autor(es): Gasco, N., P. Tixier, G. Duhamel and C. Guinet
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CCAMLR ecosystem monitoring and a feedback management procedure for krill
. This paper examines some of the issues that need to be addressed by the Scientific Committee in ... kriU at the specified level cause the health of predator populations to decline below an acceptable ... level?". There are two issues that arise from this general question. First, the degree of change ... need to be addressed. In summary, two important issues need to be addressed by WG-CEMP and WG-Krill ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/9 (Selected Scientific Papers, SC-CAMLR-SSP/9) : 345–350 : Autor(es): Constable, A.J.
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Identifying taxonomic groups vulnerable to bottom longline fishing gear in the Ross Sea region
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 ... 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 ... of issues of taxonomic level, organism abundance, or local biodiversity as potential criteria for ... described by Rogers et al. (2008), but they neces- sarily still leave many implementation issues to RFMOs ...
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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Fishing ground selection in the Antarctic krill fishery: trends in patterns across years, seasons and nations
remained relatively constant in Subareas 48.2 (March–May) and 48.3 (June–August). In 25 years of krill ... 2001/02, some catch was reported from APBSE and APBSW during the June–August period (mid-winter ... , operational timing has remained relatively constant in Subareas 48.2 (March–May) and 48.3 (June–August). In ... the minimum requirement was 10 n miles x 10 n miles x 10 days or finer, whereas in earlier years it ... CCAMLR database at a resolution of 10 n miles x 10 n miles x 10 days), but are based on the original ...
Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 117–141 : Autor(es): Kawaguchi, S., S. Nicol, K. Taki and M. Naganobu
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
last one as recent as 24 August 2001. On the fi rst aerial survey in September 1996, illegal ... , Australia: 10 pp. Leslie, R.W. and B.P. Watkins. 2001. Trawl survey of the Patagonian toothfi sh ... , which was limited to the period from 30 October 1996 to 31 August 1997. Fishery Development The ... August 1997 to 1 April 1998) and from 31 August 1998 onwards to provide for year- round access. The ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 11–32 : Autor(es): Brandão, A., D.S. Butterworth, B.P. Watkins and D.G.M. Miller
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Analysis of variability of krill size and fish by-catch in the Japanese krill fishery based on scientific observer data
, subareas and vessels. The potent interaction effect between year and subarea suggests large spatio–temporal ... to 10% haul coverage. These results suggest that data collection by scientific observers on board ... nc e 20 15 10 5 0 (f) 1995 1997 1999 2001 2003 2005 2007 1995 ... hardly show difference among years, subareas and vessels. The potent interaction effect between year and ... affects CV for only krill length data up to 10% haul coverage. These results suggest that data collection ... interaction effect on the variation of krill length as follows: ij i j ijY µ α β γ= + + + (1) ( )~ N 0,10 ...
Science Journal Paper : CCAMLR Science, Volume 19 (CCAMLR Science, Volume 19) : 31–47 : Autor(es): Okuda, T. and M. Kiyota
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Modelling catch and effort data using generalised linear models, the Tweedie distribution, random vessel effects and random stratum-by-year effects
. Further, the inclusion of an area stratum by fishing year interaction as an additional random effect in ... the GLMM is investigated. Fitting the stratum-by-year interaction as a fixed effect is problematic ... may be difficult. Fitting the stratum-by-year interaction as a random effect avoids this difficulty ... , and diagnostic methods to evaluate the validity of considering this interaction as random are ... most extreme SxY_re esti- mate in Figure 10(b) and 12 of –0.844 corresponds in Figure 9 to year 2001 ... -classifi cation. Further, the inclusion of an area stratum by fi shing year interaction as an additional ... random effect in the GLMM is investigated. Fitting the stratum-by-year interaction as a fi xed effect is ... estimates may be diffi cult. Fitting the stratum-by-year interaction as a random effect avoids this diffi ...
Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 59–80 : Autor(es): Candy, S.G