Résultats de la recherche

1. Effect of line sink rate on albatross mortality in the Patagonian toothfish longline fishery

   weights. Asymptotic sink rates (0.1-0.15 m/s) were achieved with 70 m intervals between 6.5 kg weights ... . Sink rates to 4 m depth were greatest with 35 m (0.44 m/s) and 50 m (0.33 m/s) between weights. For ... vessels using bird-scaring lines and setting lines in propeller turbulence, longline sink rates >0.3 m ... /s should greatly reduce the incidental take of albatrosses. For autoline vessels with gear and line ... respectively were required to clear the bird strike zone at 12 m depth. Thus, with weights spaced at 35 m ... m astern - about 35 m beyond the area 'protected' by the bird line used by the CFL Pioneer. With ... Pioneer used 40 m long paired bird-scaring streamer lines, slung 10 m apart from the deck hand rail with ... where seabirds attack baits with greater intensity than observed during the experiments. Therefore ...

   Science Journal Paper : CCAMLR Science, Volume 7 (CCAMLR Science, Volume 7) : 133–150 : Auteur(s): Robertson, G.G

2. Validation of sink rates of longlines measured using two different methods

   / Description:  Sink rates of integrated weight longlines (lines with 50 g.m –1 lead integrated into two strands ... plastic bottles (bottle method). Sink rates measured to 2 m with bottles averaged 0.23 ± 0.07 m.s –1 ... , P = 0.003). Measuring sink rates to 15 m proved difficult with bottles because they were too far ... the FV Janas, a 46.5 m freezer autoliner (New Zealand Longline Ltd) using 9 mm demersal integrated ... member attached a bottle with a 15 m string about one-third into a magazine and a bottle with a 2 m ... with 50 g.m–1 lead integrated into two strands of the ground line – IW-50 lines) were measured during ... with bottles averaged 0.23 ± 0.07 m.s–1 compared to 0.17 ± 0.03 m.s–1 recorded by TDRs. This ...

   Science Journal Paper : CCAMLR Science, Volume 11 (CCAMLR Science, Volume 11) : 179–187 : Auteur(s): Wienecke, B. and G. Robertson

3. Factors affecting the incidental mortality of seabirds in the Dissostichus eleginoides fishery in the southwest Atlantic (Subarea 48.3, 1995 season)

   with the information collected by international scientific observers from each vessel. It was thus ... significantly more birds being taken in comparison with hauls conducted during the new moon quarter (P < 0.03 ... national fishing authority and supplemented with the information collected by international scientific ... scientific with the help of the expertise of WC-FSA information on seabird mortality during fishing members ... D. eleginoides fishery has on board a scientific observer appointed in accordance with the CCAMLR ...

   Science Journal Paper : CCAMLR Science, Volume 3 (CCAMLR Science, Volume 3) : 79–91 : Auteur(s): Moreno, C.A., P.S. Rubilar, E. Marschoff and L. Benzaquen

4. Preliminary study on nesting Adélie penguins disturbance by unmanned aerial vehicles

   , where they are a new tool used in ecological research and monitoring. In this preliminary study ... potential effects of wildlife disturbance by fixed-wing UAVs are investigated. In austral summer 2014/15 ... on each type of behaviour and number of different types of behaviour displayed by one bird during the ... with penguins looking up and around for a few seconds when the UAV was overhead. Similar symptoms of ... incubation period in November 2014, the colony was overflown by two UAVs with different propulsion systems ... such as African large mammals (Vermeulen et al., 2013; Mulero-Pazmany et al., 2014), marine mammals ... - toring programs of bird and pinniped species conducted by the USA (Antarctic Marine Living Resources ... . 2013. New methods and technologies for regional- scale abundance estimation of land-breeding marine ...

   Science Journal Paper : CCAMLR Science, Volume 23 (CCAMLR Science, Volume 23) : 1–16 : Auteur(s): Korczak-Abshire, M., A. Kidawa, A. Zmarz, R. Storvold, S.R. Karlsen, M. Rodzewicz, K. Chwedorzewska and A. Znój

5. Fishing for toothfish using pots: results of trials undertaken around South Georgia, March–May 2000

   (Subarea 48.3). This method has the potential to minimise, or eliminate, incidental bird mortality when ... eliminated bird by-catch. To capitalise on this feature, there is a need to improve the commercial viability ... petrel fed on a crab with a damaged carapace. The most abundant bird species observed in the vicinity ... interactions of marine mammals with fishing operations. No direct interactions were seen. Antarctic fur seals ... eliminate, incidental bird mortality when compared to the standard longline method. This paper describes ... achieved in the longline fishery. Importantly, the use of pots eliminated bird by- catch. To capitalise on ...

   Science Journal Paper : CCAMLR Science, Volume 8 (CCAMLR Science, Volume 8) : 93–105 : Auteur(s): Agnew, D.J., T.M. Daw, G.M. Pilling and M.G. Purves

6. Discrimination of Macrourus whitsoni and M. caml (Gadiformes, Macrouridae) using otolith morphometrics

   , was recognised in 2010 with the identification of a new species, M. caml. Grenadier are the main by ... by the New Zealand Ministry for Primary Industries (project ANT2012-01 Obj 7C) with co-funding ... Research (NIWA) Ltd Private Bag 14901 Kilbirnie, Wellington 6241 New Zealand Email – m.pinkerton ... with the identification of a new species, M. caml. Grenadier are the main by-catch in the toothfish ... of grenadier otoliths from the Ross Sea fishery pres- ently stored at NIWA, Wellington, New Zealand ...

   Science Journal Paper : CCAMLR Science, Volume 22 (CCAMLR Science, Volume 22) : 15–28 : Auteur(s): Pinkerton, M.H., C. Ó Maolagáin, J. Forman and P. Marriott

7. Reproductive performance of seabirds and seals at South Georgia and Signy Island, South Orkney Islands, 1976-1987: implications for Southern Ocean monitoring studies

   wandering albatrosses, gentoo and macaroni penguins and Antarctic fur seals, at Bird Island, South Georgia ... synchronised with those at South Georgia; they correlate best (especially for chinstraps, which suffered badly ... in 1980-81 and 1982-83) with the date of ice break-out in late spring. Numerous parameters of ... Variability. Springer. Berlin, Heidelberg, New York, Tokyo). File:  19-Croxall-et-al.pdf ... Antarctic FUr Seals, at Bird Island, South Georgia and for Adelie and Chinstrap Penguins at Signy Island ... -eating, summer-breeding penguins at Signy Island are not synchronised with those at South Georgia; they ... correlate best (especially for Chinstraps, which suffered badly in 1980-81 and 1982-83) with the date of ... , Heidelberg, New York, Tokyo. 1. British Antarctic Survey, Natural Environment Research Council, Madingley ...

   Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 445-447 : Auteur(s): Croxall, J.P., T.S. McCann, P.A. Prince and P. Rothery

8. A stock assessment model of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region incorporating multi-year mark-recapture data

   hence a multi-year mark-recapture tagging program was initiated by New Zealand fishing vessels in 2001 ... of tagged fish and subsequent multi-year data of recapture of tagged fish in conjunction with fishery ... Institute of Water and Atmospheric Research (NIWA) Ltd. Private Bag 14901, Wellington New Zealand ... (NIWA) Ltd. PO Box 893, Nelson 7040 New Zealand Abstract An exploratory longline fishery for ... mark-recapture tagging program was initiated by New Zealand fishing vessels in 2001, and tagging has ... ). A pilot mark- recapture program was initiated by New Zealand vessels in 2001 and after the ...

   Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 39–62 : Auteur(s): Mormede, S., A. Dunn and S.M. Hanchet

9. Analysis of albatross and petrel distribution within the CCAMLR Convention Area: results from the Global Procellariiform Tracking Database

   , the subareas with the highest proportion of albatross and petrel breeding distribution were Subareas ... petrel breeding ranges extend across the majority of the Convention Area. Subareas with the lowest ... . Distribution of seabirds from New Zealand that overlap with fisheries world- wide. Science for Conservation ... Convention Area. This paper is the product of such an analysis, with the benefit of new data that have been ... (DPIWE), Tasmania. Chatham albatross (New Zealand): C.J.R. Robertson, D.G. Nicholls and M.D. Murray ... Conservation New Zealand, David Bell, Hans Rook. Northern royal albatross (New Zealand): C.J.R. Robertson ...

   Science Journal Paper : CCAMLR Science, Volume 13 (CCAMLR Science, Volume 13) : 143–174 : Auteur(s): BirdLife International (prepared by C. Small and F. Taylor)

10. Spatially explicit population dynamics models for Antarctic toothfish in the Ross Sea region

    dynamics of spatial heterogeneity of the population along with age structure, movement and reproductive ... were consistent with the results of tagging studies and fits to the other observations (age ... Atmospheric Research (NIWA) Ltd Private Bag 14901 Wellington 6241 New Zealand Email – sophie.mormede ... Box 893 Nelson 7040 New Zealand Abstract Population modelling software was developed that captures ... -area stock assess- ment (see Mormede et al., 2014), with catch-at-age process error of 150 (effective ... between the areas is estimated as an area-specific process (e.g. Goethel et al., 2014) or where movement ...

    Science Journal Paper : CCAMLR Science, Volume 21 (CCAMLR Science, Volume 21) : 19–37 : Auteur(s): Mormede, S., A. Dunn, S. Hanchet and S. Parker

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