Resultados de la búsqueda
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Electronic monitoring of seabird interactions with trawl third-wire cables on trawl vessels – a pilot study
sensors, and on-board data storage, were deployed on five fishing vessels for 14 fishing trips during a ... test electronic monitoring (EM) equipment for possible use to examine seabird interactions with trawl ... third-wire cables on trawl vessels. This pilot study involved field testing of EM systems on shoreside ... Economic Zone. EM systems, consisting of two closed circuit television cameras, GPS, hydraulic and winch ...
Meeting Document : WG-FSA-04/23text : Autor(es): H. McElderry, J. Schrader, D. McCullough, J. Illingworth, S. Fitzgerald and S. Davis (USA)
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Diel vertical distribution of Antarctic krill around the South Shetland Islands in February 2019 and its potential effect on biomass estimation
Abstract: To address the potential effect of DVM behavior on krill biomass estimates, diel ... on data collected by the Chinese fishing vessel participating in the international 2019 Area 48 ... , while 16.5 % compared to 5.7 % of the corresponding total NASC value (m 2 n.mile-2) integrated for ... that, when 15m is used for upper integration layer limit, both daytime survey and nighttime survey are ...
Meeting Document : SG-ASAM-2019/05 : Autor(es): X. Wang, X. Yu, J. Zhang and X. Zhao
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Reports on biological information of toothfish with special reference to bycatch, depredation and spawning dynamics in Division 58.4.4 a & b by Shinsei maru No. 3 during 2008–14 seasons
generalized linear model with stepwise process for separating two areas, SSRUs 58.4.4aA & 58.4.4bB and ... weight and number, accounting for 93% and 76% of the total catch, respectively, among total of 16 species ... for the three dominant species/genus was mainly divided into three groups using clustering. The three ... method and grenadier bycatch method by Gasco et al. (2014) using two size levels of unit cell, and ...
Meeting Document : WG-FSA-15/21 : Autor(es): K. Taki and T. Ichii (Japan)
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Diet composition and observations on reproduction of Champsocephalus gunnari in Subarea 48.3 in March/April 1996, Dr Eduardo Holmberg survey
items, known as an important alternative food in years of krill scarcity, were ingested only ... higher than those reported for the 1991 and 1994 years of krill shortage. The analysis of the ovarian ... in the region in levels equivalent to the historical years of high abundance. Author(s): Marschoff ... , E., Barrera-Oro, E., Casaux, R. Title: Diet composition and observations on reproduction of ...
Meeting Document : WG-FSA-96/28 Rev. 1 : Autor(es): Marschoff, E., Barrera-Oro, E., Casaux, R.
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Krill distribution related to water structure and dynamics on the South Georgia shelf in January 2000 (AtlantNIRO-BAS Core Programme 1999/2000)
distribution were carried out in two standard boxes on the shelf and slope northwest and northeast of South ... Abstract: Research on water structure and dynamics, krill biomass assessment, biology and ... • Juvenile krill of 30-36 mm length were observed in the shelf zone and larger specimens, including spawning ... . According to these preliminary results, krill abundance on the South Georgia shelf in January 2000 was lower ...
Meeting Document : WG-EMM-00/51 : Autor(es): V.A. Sushin (Russia), P.P. Chernyshkov (Russia), F.F. Litvinov (Russia), J.L. Watkins (United Kingdom) and A.S. Brierley (United Kingdom)
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Notes on the availability of three important finfish species in offshore waters of the lower South Shetland Islands (Subarea 48.1)
relationships for these three species. In general, these two data sets are complementary, and demonstrate well ... collected from a single year, the sample size and regression range available for length-weight relationships ... can be increased. However, the value of these data as a combined singular data set for one year of ... Abstract: In 1998, an offshore scientific trawl survey of bottom fish sampling within the 50-500 ...
Meeting Document : WG-FSA-99/31 : Autor(es): C.D. Jones (USA), E.R. Barrera-Oro, E.R. Marschoff and R.J. Casaux (Argentina)
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Observation on the interactions between marine mammals and mid-water krill trawl
Abstract: An observation on the interaction between marine mammal and krill midwater trawl was ... carried out onboard the Chinese krill fishing vessel Fu Rong Hai during the 2018/19 fishing season. The ... inner-trawl observation was made using an Underwater IP Camera, while sea surface observation was ... available in reachable shallow depth (less than 50 m), Antarctic fur seal would feed on this krill and ...
Meeting Document : WG-FSA-2019/60 : Autor(es): Y. Ying, G. Fan, X. Zhao, J. Zhang, X. Wang and J. Zhu
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Background papers considered relevant to the WG-EMM discussions on feedback management
populations across the Antarctic Peninsula. The Antarctic Site Inventory data, together with data from other ... sources, has been collated within Mapping Application for Penguin Populations and Projected Dynamics ... (MAPPPD) which is on a publicly available website (Humphries et al. In Press). The data summary and ... analysis together with the methods described within Lynch et al. (2010), provide methods that are of direct ...
Meeting Document : WG-EMM-16/44 : Autor(es): Delegation of the United Kingdom
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PRELIMINARY ASSESSMENT OF MACKEREL ICEFISH, CHAMPSOCEPHALUS GUNNARI, IN THE VICINITY OF HEARD ISLAND AND MCDONALD ISLANDS (DIVISION 58.5.2), BASED ON A SURVEY IN JULY 2008, USING THE GENERALISED YIELD MODEL
58.5.2 in the vicinity of Heard Island in July 2008 to provide the information for an assessment of short ... for the area of Division 58.5.2 to the west of 79o 20’ E using standard CCAMLR methods. The strong ... , CHAMPSOCEPHALUS GUNNARI, IN THE VICINITY OF HEARD ISLAND AND MCDONALD ISLANDS (DIVISION 58.5.2), BASED ON A SURVEY ... year class detected in last year’s survey is now fully recruited as the 2+ cohort, and dominates the ...
Meeting Document : WG-FSA-08/56 : Autor(es): D.C. Welsford (Australia)
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Semi-empirical acoustic estimates of krill biomass derived from simulated commercial fishery data based on single-frequency acoustics
the 3-frequency method using the CCAMLR protocol for the period between 1996 and 2011 in both the ... between these two areas and the 3-frequency biomass showed that models developed using a wide length ... long to average out differences among years. Author(s): A.M. Cossio, G.W. Watters, C.S. Reiss, J ... simulated commercial fishery data based on single-frequency acoustics Approval: Approved ...
Meeting Document : SG-ASAM-12/04 : Autor(es): A.M. Cossio, G.W. Watters, C.S. Reiss, J. Hinke and D. Kinzey (USA)