Resultados de la búsqueda
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Solutions to seabird by-catch in Alaska’s demersal longline fisheries
we saw orders of magnitude variation in bycatch across years and in the case of the sablefish fishery ... Abstract: This research program compared seabird bycatch mitigation strategies over 2 years (1999 ... and 2000) in 2 major Alaska demersal longline fisheries: the Gulf of Alaska /Aleutian Island ... fishery for Pacific cod. We conducted tests over two years to account for inter-annual variation and allow ...
Meeting Document : WG-FSA-01/35 : Autor(es): E.F. Melvin, J.K. Parrish, K.S. Dietrich and O.S. Hamel (USA)
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Integrated models for Antarctic krill (Euphausia superba) using survey data from 1981–2014 in Subarea 48.1
data. Plans for extending the models and data in the upcoming year include modifying the code to make ... of Antarctic krill in Subarea 48.1 based on different aggregations of the data are described to ... transects from 1996 to 2011) and Peru (IKMT sampling in 2014) are organized into different temporal ... , and hydroacoustic data arranged in different temporal groupings (annual, summer-winter, monthly). The ...
Meeting Document : WG-SAM-14/20 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss (USA)
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Population identity, site-fidelity, movement ranges and preliminary estimates of abundance of southern right whales in the Antarctic Indian sector inferred from genetic markers
return to the same location in the Antarctic Indian sector in subsequent years. The average longitudinal ... the same sector and similar period. However differences were observed in some years, which suggest ... identity as well the individual identity of southern right whales distributed in summer in the Antarctic ... abundance based on ‘mark-recapture’ methods in the Antarctic Indian sector (i.e., between 80°-135°E and ...
Meeting Document : WG-EMM-18/18 : Autor(es): L.A Pastene, M. Goto, P. Acuña, M. Taguchi, T. Hakamada and K. Matsuoka
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Longterm monitoring of krill recruitment and abundance indices in the Elephant Island area (Antarctic Peninsula)
the representativeness of the study area (60°- 62°30'S and 53°- 57°30 'W) for the ... . Statistically significant fluctuations in krill density over the period 1977 to 1994 are also confirmed by this ... , V. Title: Longterm monitoring of krill recruitment and abundance indices in the Elephant Island ... confirmed by the present analysis. Results are compared for one (R1) and two year old (R2) age classes ...
Meeting Document : WG-EMM-96/45 : Autor(es): de la Mare, W., Loeb, V., Siegel, V.
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Demersal fishing interactions with marine benthos in the Southern Ocean: an assessment of the vulnerability of benthic habitats to impact by demersal gears
Dissostichus spp. with marine benthos in the Australian EEZ of the Southern Ocean. Key outcomes of this project ... will include: • Compact camera systems which will be able deployed by scientific observers in the ... shelf • An assessment of the vulnerability of benthic habitats to impact by demersal gears in the Sub ... capture data to quantify interactions between demersal gears and the benthos in CCAMRL fisheries. Author(s ...
Meeting Document : SC-CAMLR-XXVI/BG/30 : Autor(es): Delegation of Australia
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Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models
in recent years. The trends in biomass dynamic estimated by DPM are very similar with trends from ... in subarea 48.3. This type of the models differ from the models currently used by CCAMLR Working ... mortality, age selectivity, recruitment estimates, mean weight at age) In the calculations with DPM (with ... Schaefer and Fox production functions) were used: total yield for a series of years and abundance index ...
Meeting Document : WG-FSA-02/78 : Autor(es): P.S. Gasiukov and R.S. Dorovskich (Russia)
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Characterisation of skate catches in the Ross Sea region
of collecting large amounts of data in specific years rather than small amounts of data in many years ... in the Ross Sea Region, including the data collected in the two “Year of the Skate” fishing seasons ... Abstract: The toothfish fishery in the Ross Sea region (CCAMLR Subareas 881 and 882) has been ... less). In this paper we summarise the current available fisheries and biological information for skates ...
Meeting Document : WG-FSA-10/25 : Autor(es): S. Mormede and A. Dunn (New Zealand)
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Preliminary results of oceanological research of Ukrainian vessels in the CCAMLR area for the season 2017/18
Abstract: In the fishing season of 2018, three Ukrainian fishing vessels collected oceanographic ... research of Ukrainian vessels in the CCAMLR area for the season 2017/18 Approval: Approved Secretariat ...
Meeting Document : WG-SAM-18/27 : Autor(es): V. Paramonov
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Depletion-corrected average catch: a simple formula for estimating sustainable yields in data-poor situations
sum of the number of years in the catch series and this windfall ratio. Input information includes the ... sum of catches and associated number of years, the relative reduction in biomass during that period ... yield component and an unsustainable “windfall” component associated with a one-time reduction in stock ... biomass. The size of the windfall is expressed as being equivalent to a number of years of sustainable ...
Meeting Document : WG-SAM-11/P3 : Autor(es): A.D. McCall
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Preliminary studies on age and growth of Dissostichus eleginoides in the Ob-Lena Bank
Abstract: Preliminary studies on the age and growth of Dissostichus eleginoides sampled in the ... 2007/08 season in the Ob-Lena Bank were carried out. The ages of 214 of 3,013 fish sampled by Observers ... were estimated. The estimated ages ranged from 5 to 46 years for males and from 5 to 50 years for ... females. Five to eighteen years gave large contribution to the total age groups for both sexes. Females ...
Meeting Document : WG-FSA-10/48 : Autor(es): K. Taki, M. Kiyota and T. Ichii (Japan)