WG-ASAM-2022/01 Mostrar menos información |
Report of the Chair of the Scientific Committee on the CCAMLR Scientific Committee Symposium Chair of the Scientific Committee |
5.1 |
WG-ASAM-2022/02 Mostrar menos información |
Strata creation and area calculation – a template CCAMLR Secretariat
Resumen:
We provide R code to aid in the creation of CCAMLR management strata and the computation of their areas, using the boundaries that were proposed in 2021 for the management of the krill fishery in Subarea 48.1 as an example.
Presentado por:
Dr Stéphane Thanassekos (Secretaría de la CCRVMA)
Aprobado por:
Dr David Agnew (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
2 |
WG-ASAM-2022/03 Rev. 1 Mostrar menos información |
Monitoring krill in the Ross Sea MPA A. De Felice, G. Canduci, I. Biagiotti, G. Giuliani, I. Costantini and I. Leonori
Resumen:
The ROSSKRILL project gave the opportunity to perform a large-scale acoustic survey in western Ross Sea, after a time gap of many years lasting since 2004. In the meanwhile, this area saw the establishment of the largest MPA in the world, and it will be very interesting to compare recent results with the past ones. The survey was performed in January 2022 on board R/V Laura Bassi, and during Read More
Presentado por:
Dr Andrea De Felice
Aprobado por:
Dr Marino Vacchi (Italia)
Solicitar acceso a documento de reunión
|
4.2 |
WG-ASAM-2022/04 Mostrar menos información |
Krill biomass and flux in Subarea 48.1 near Cape Shirreff during four austral summers G. Cutter, C. Reiss and G. Watters |
3.1.2 |
WG-ASAM-2022/05 Mostrar menos información |
Proposal to conduct a local acoustic-trawl survey of the Champsocephalus gunnari in the Statistical Subarea 48.2 Delegation of Ukraine
Resumen:
Mackerel icefish (Champsocephalus gunnari) is one of the most common and widespread species of Antarctic fish. Ukraine proposes to conduct a local acoustic-trawl survey of Champsocephalus gunnari in the statistical Subarea 48.2. The main objective of the research is to determine the distribution and the abundance of Read More
Presentado por:
Dr Kostiantyn Demianenko (Ucrania)
Aprobado por:
Dr Kostiantyn Demianenko (Ucrania)
Solicitar acceso a documento de reunión
|
3.1 |
WG-ASAM-2022/06 Mostrar menos información |
Acoustic transects survey undertaken by a Chinese krill fishing vessel in Subarea 48.3 in June and August 2021 X. Wang, J. Zhu, Y. Ying and X. Zhao
Resumen:
With the aim to provide information on krill dynamics, SG-ASAM has agreed on several nominated transects with higher priority for collecting acoustic data by fishing vessels across Subarea 48.1 to 48.3. Here we provide information on the acoustic surveys on the nominated transects in Subarea 48.3 undertook by the Chinese krill Read More
Presentado por:
Dr Xinliang Wang (China)
Aprobado por:
Dr Xianyong Zhao (China)
Solicitar acceso a documento de reunión
|
4.1 |
WG-ASAM-2022/07 Mostrar menos información |
Proposals to standardise the collection and processing of krill acoustic survey data S. Kasatkina and A. Abramov
Resumen:
The implementation of the Scientific Committee recommendations to develop the standardized methods for processing and reporting future acoustic survey results requires clarity on some methodological aspects of acoustic survey. Furthermore, it is important to streamline the system of krill acoustic surveys carried out in the CCAMLR area.
In view of Read More
Presentado por:
Dr Svetlana Kasatkina (Federación de Rusia)
Aprobado por:
Dr Svetlana Kasatkina (Federación de Rusia)
Solicitar acceso a documento de reunión
|
2 |
WG-ASAM-2022/08 Mostrar menos información |
Comparison analysis of krill length compositions from catches obtained by research and commercial gears S. Kasatkina and S. Sergeev
Resumen:
In this paper, the authors consider inter-vessel variability in the length composition of krill in catches from research and commercial catches in the context of gear designs and the efficiency of observer sampling design in krill fishery. Analysis was provided using data obtained in the local fishing ground within several days to exclude any Read More
Presentado por:
Dr Svetlana Kasatkina (Federación de Rusia)
Aprobado por:
Dr Svetlana Kasatkina (Federación de Rusia)
Solicitar acceso a documento de reunión
|
2, 4.1 |
WG-ASAM-2022/09 Mostrar menos información |
Preliminary results from the Antarctic krill surveys around the South Shetland Islands conducted by the Chinese fishing vessels during May to June 2021 and April 2022 X. Wang, G. Fan, B. Yuan and X. Zhao
Resumen:
The Chinese krill fishing vessels have been conducting annual acoustic survey on Antarctic krill in Subarea 48.1 since the 2013/2014 fishing season. Krill biomass estimates from these surveys provided important information for understanding the variation of krill stock in summer seasons. Here the preliminary results on krill distribution from the acoustic survey in Subarea 48 Read More
Presentado por:
Dr Xinliang Wang (China)
Aprobado por:
Dr Xianyong Zhao (China)
Solicitar acceso a documento de reunión
|
3.1.2 |
WG-ASAM-2022/10 Mostrar menos información |
The effect of the krill length to wetmass relationship on the scaling of acoustic data M.J. Cox and S. Wotherspoon
Resumen:
Here we examine the variability in the conversion factor, C, that scales Nautical Area Scattering Coefficient (NASC) values of krill echoes to krill areal biomass density. Specifically, we Read More
Presentado por:
Dr Martin Cox (Australia)
Aprobado por:
Dr Philippe Ziegler (Australia)
Solicitar acceso a documento de reunión
|
2 |
WG-ASAM-2022/11 Rev. 1 Mostrar menos información |
Repository of acoustic data collected by fishing vessels along CCAMLR nominated transects CCAMLR Secretariat
Resumen:
The Scientific Committee endorsed the recommendation by WG-ASAM to have the Secretariat create a central repository for acoustic data collected by fishing vessels along nominated transects (SC-CAMLR-40 paragraph 2.10). We provide an overview of the raw acoustic data collected by fishing vessels currently available from the Secretariat and describe how these data are stored. Following the Read More
Presentado por:
Mr Daphnis De Pooter (Secretaría de la CCRVMA)
Aprobado por:
Dr David Agnew (Secretaría de la CCRVMA)
Solicitar acceso a documento de reunión
|
5.2 |
WG-ASAM-2022/12 Rev. 1 Mostrar menos información |
CCAMLR nominated acoustic transects undertaken by fishing vessels at South Georgia in 2021 S. Fielding and J. Arata
Resumen:
In 2021 four krill fishing vessels undertook nominated CCAMLR transects T9, T10 and T11 on the northeast shelf (ECB), and T6 and T8 at the northwest shelf (WCB) of South Georgia. Transects from the ECB were undertaken in June and August, whilst those within the WCB only in August. Guidelines were provided with two tasks (1) a bottom calibration area for inter-vessel Read More
Presentado por:
Dr Sophie Fielding (Reino Unido)
Aprobado por:
Dr Chris Darby
Solicitar acceso a documento de reunión
|
4.1 |
WG-ASAM-2022/13 Mostrar menos información |
Proposal for standardised methods for processing and reporting krill acoustic survey results G. Macaulay
Resumen:
Standardised methods for processing and reporting kill acoustic survey results to CCAMLR are proposed.
Presentado por:
Dr Gavin Macaulay
Aprobado por:
Dr Bjørn Krafft (Noruega)
Solicitar acceso a documento de reunión
|
2 |
WG-ASAM-2022/14 Mostrar menos información |
Distribution and abundance of Antarctic krill off South Orkney Islands, February 2022 S. Menze, B. Krafft and G. Macaulay
Resumen:
During February 2022 the Cargo Vessel “Antarctic Provider” was used to conduct the annual Norwegian Institute of Marine Research survey covering 5 north/south transects off South Orkney Islands. This survey represents the eleventh survey carried out since 2011, using the same type of method design and timing. It Read More
Presentado por:
Dr Gavin Macaulay
Aprobado por:
Dr Bjørn Krafft (Noruega)
Solicitar acceso a documento de reunión
|
3.1.2 |
WG-ASAM-2022/15 Mostrar menos información |
Review of the Rules for Access and Use of CCAMLR Data Chair of the Data Services Advisory Group (DSAG)
Resumen:
The Scientific Committee requested DSAG to review the Rules for access and use of CCAMLR Data, which was presented for consideration at the Scientific Committee symposium. This document describes the implementation of the Rules for Access and use of CCAMLR Data into the CCAMLR Data Request procedure and the procedure for Read More
Presentado por:
Dr Anton Van de Putte (Bélgica)
Aprobado por:
Dr Anton Van de Putte (Bélgica)
Solicitar acceso a documento de reunión
|
5.3 |
WG-ASAM-2022/P01 Mostrar menos información |
Antarctic krill biomass and flux measured using wideband echosounders and acoustic doppler current profilers on submerged moorings G. Cutter, C. Reiss, S. Nylund and G. Watters
Resumen:
During austral summer 2018/2019, we deployed an array of six submerged moorings equipped with Nortek Signature100 integrated wideband echosounder and acoustic Doppler current profilers (ADCPs) on the continental shelf of the northern Antarctic Peninsula. Acoustic data from these instruments were used to classify targets, estimate water flow and the biomass of Antarctic krill (Euphausia superba Read More
Presentado por:
Dr George Cutter (Estados Unidos de América)
Aprobado por:
Dr George Watters (Estados Unidos de América)
Publicación:
Front. Mar. Sci., 9 (2022): 784469, doi: 10.3389/fmars.2022.784469
Solicitar acceso a documento de reunión
|
4.2 |
WG-ASAM-2022/P02 Mostrar menos información |
Estimating the average distribution of Antarctic krill Euphausia superba at the northern Antarctic Peninsula during austral summer and winter V. Warwick-Evans, S. Fielding, C.S. Reiss, G.M. Watters and P.N. Trathan
Resumen:
This study was performed to aid the management of the fishery for Antarctic krill Euphausia superba. Krill are an important component of the Antarctic marine ecosystem, providing a key food source for many marine predators. Additionally, krill are the target of the largest commercial fishery in the Southern Ocean, for which annual catches have been increasing and concentrating in Read More
Presentado por:
Dr Sophie Fielding (Reino Unido)
Aprobado por:
Dr Chris Darby
Publicación:
Polar Biol., 45 (2022): 857–871
Solicitar acceso a documento de reunión
|
3.1.1 |