The CCAMLR 2000 krill synoptic survey
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Welcome to the CCAMLR krill synoptic survey web site. This web site
has been created to provide detailed information about the planning, the
conduct and the analysis of the CCAMLR 2000 Synoptic Survey Cruises. After
a brief introduction you will see that the site is divided into 3 main
areas. These relate to:
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planning information used by participants of the survey.
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details of the actual cruises undertaken by the participating ships
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post-cruise data analyses
Information placed on this site may be modified to reflect the latest status
of the analysis process. To help you keep up to date with changes each
page or table shows when it was last modified. A contents
page summarizes all the updates on the site, the navigation bar at
the bottom of the page allows you to quickly move between the major sets
of pages. Contact Jon Watkins , Synoptic
Survey Coordinator (my email), if you require
further information on the synoptic survey or have any comments about this
site.
New Information
Follow the links to find the latest additions to the site
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Introduction
An estimate of krill biomass (BO) and its variance is used in
the CCAMLR krill yield model to estimate the precautionary catch limit
of krill for Area 48. At the present time the estimate of biomass is derived
from the FIBEX (First International BIOMASS Experiment) synoptic survey
which took place in 1980. Over the last 5 years there has been a recognition
that more up to date estimates of krill biomass are required (SC-CAMLR-XII,
paragraphs 2.38 to 2.43). For instance, in 1996 the CCAMLR Scientific Committee
recognized the urgent need for a synoptic survey in Area 48 and noted that
management advice for Area 48 could not be updated until such a survey
had been conducted (SC-CAMLR-XV, paragraph 4.28). Since then plans to carry
out a CCAMLR krill synoptic survey have progressed steadily (SC-CAMLR-XVI,
paragraphs 5.13 to 5.19).
Overview
The synoptic survey took place in January 2000. The survey concentrated
its efforts in Subareas 48.1, 48.2, 48.3 and 48.4. The survey was multi-national
in character, involving the participation of the research vessels RV
Kaiyo Maru (Japan), MV Atlantida (Russia), RRS James Clark
Ross (UK) and MV Yuzhmorgeologiya (USA) plus the participation
of experts from other CCAMLR nations. The main objective was to improve
estimates of BO (pre-exploitation biomass) used in the krill
yield model to estimate sustainable yield for Area 48 (WG-EMM-98, paragraph
9.51).
Much of the survey was planned at a meeting in Cambridge in March 1999
and by using this website. The cruises were carried out to a set of agreed
protocols
to ensure that data from the participating nations is as comparable as
possible. An estimate of and its variance was obtained at an analysis
workshop in La Jolla in May/June 2000.
Following the workshop to estimate krill biomass (BO) procedures
were set in place to analyse the other data sets collected during the survey.
A workshop was held in Cambridge in June 2001. Work is presently continuing
on a set of multinational papers that will be published together in a peer-reviewed
journal. A password protected area (Post-cruise
analyses) provides details of the current status of these analyses.
Follow the main links below to get to key areas of the CCAMLR 2000 Synoptic
Survey Web Site
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MV Yuzhmorgeologiya cruise (USA)
RV Kaiyo Maru cruise (Japan)
MV Atlantida cruise (Russia)
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| Introduction |
Pre-cruise planning |
Cruise details by participating ships |
Post-cruise analyses |
Participants |
Contents |
This site
is hosted by the British Antarctic Survey and is maintained by Jon
Watkins/my email
Page was last updated on 1 October 2001; Site was last updated on 24
January 2003