Experimental studies into growth and ageing of krill




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Experimental studies into growth and ageing of krill

Entry ID: ASAC_2337

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Summary

Abstract: Metadata record for data from AAS (ASAC) Project 2337.

An excel spreadsheet is available for download from the URL given below. The spreadsheet contains three worksheets:

- a summary of the data
- validated data
- all data

Public
The experimental krill research program is focussed on obtaining life history information of use in managing the krill fishery - the largest Antarctic fishery. In ... particular, the program will concentrate on studies into schooling, growth, aging, behaviour and reproduction of krill as well as into the operation, behaviour and trends of the krill fishery.

Project objectives:
To investigate key aspects of the biology of Antarctic krill and its management utilising the facilities at the Australian Antarctic Division.

Taken from the 2008-2009 Progress Report:
Progress against objectives:
We succeeded to take krill larvae reproduced in-house last year up to adult stage (external maturity) for the first time in our research laboratory (the second facility ever outside Antarctica), which means that last year's larvae reached maturity within a year in our aquarium, compared to 2-3 years in the wild, however spawning from this population is yet to be recorded. We also had successful reproduction this year and currently these animals are at late larval stage. We have now succeeded in reproduction two years in a row and have established the technique. This is a major step forward in closing Antarctic krill's life cycle in our aquarium. This achievement makes us the only research facility outside Antarctica to be able to conduct live krill experiments for the entire life stage and contribute information on biological parameters important for krill management.

Taken from the 2009-2010 Progress Report:
Progress against objectives:
This year for the first time we have succeeded in closing the entire krill life cycle in our research laboratory (the second facility ever outside Antarctica. We also achieved successful reproduction this year and currently these animals are at the late larval stage. We have now succeeded in krill reproduction for three years in a row and have firmly established the technique. This achievement makes us the only research facility outside Antarctica to be able to conduct live krill experiments for the entire life stage and contribute information on biological parameters important for krill management.

Taken from the 2010-2011 Progress Report:
Public summary of the season progress:
Understanding how krill may respond to various environments is the fundamental information to predict the future of krill centric ecosystem under the climate change. The project's current focus is to study impacts of ocean acidification on krill. The AAD aquarium facility for ocean acidification study is continuing to be upgraded to increase its capacity and stability to undertake its experiments at larger scale. Negative impacts of ocean acidification on krill has been investigated and the range of CO2 level fatal to krill embryonic development was broadly identified, and was published for the first time.

Related URL

Link: GET DATA

Description: Download point for the data - excel spreadsheet

Geographic Coverage

(Click for Interactive Map)

Spatial coordinates

N: -50.0

S: -67.0

E: 180.0

W: -180.0

Temporal Coverage

Start Date: 2002-09-30

Stop Date: 2012-03-31

Location Keywords

OCEAN > SOUTHERN OCEAN

CONTINENT > AUSTRALIA/NEW ZEALAND > AUSTRALIA

CONTINENT > ANTARCTICA

GEOGRAPHIC REGION > POLAR

Science Keywords

OCEANS > OCEAN CHEMISTRY > CARBON DIOXIDE

OCEANS > AQUATIC SCIENCES > FISHERIES

ISO Topic Category

BIOTA

ENVIRONMENT

OCEANS

Platform

SHIPS

LABORATORY

R/V AA > R/V Aurora Australis

Instrument

TRAWL

Quality The values provided in temporal and spatial coverage are approximate only.

Taken from the 2008-2009 Progress Report:

Variations to work plan or objectives:
We started conducting experiments to evaluate effects of rising CO2 concentration to krill larval development. This year we also conducted long-term CO2 exposure experiments using post larval krill. This was ...

Access Constraints These data are available for download from the URL given below.

Use Constraints This data set conforms to the PICCCBY Attribution License
(http://creativecommons.org/licenses/by/3.0/).

Please follow instructions listed in the citation reference provided at http://data.aad.gov.au/aadc/metadata/citation.cfm?entry_id=ASAC_2337 when using these data.

This "Experimental studies into growth and ageing of krill" is licensed under a Creative Commons Attribution 3.0 Unported License.

Ancillary Keywords

Krill

growth

ageing

aquarium

Data Set Progress

IN WORK

Data Center

Australian Antarctic Data Centre, Australia

Data Center URL: http://data.aad.gov.au

Data Center Personnel
Name: DATA OFFICER AADC Phone: +61 3 6232 3244 Fax: +61 3 6232 3351 Email: metadata at aad.gov.au Contact Address: Australian Antarctic Division 203 Channel Highway City: Kingston Province or State: Tasmania Postal Code: 7050 Country: Australia

Distribution

Distribution Media: HTTP

Distribution Size: 281 kb

Distribution Format: Excel

Fees: free

Personnel

SO KAWAGUCHI

Role: INVESTIGATOR

Role: TECHNICAL CONTACT

Phone: +61 3 6232 3216

Email: So.Kawaguchi at aad.gov.au

Contact Address:

Australian Antarctic Division,

Channel Highway

City: Kingston

Province or State: Tasmania

Postal Code: 7050

Country: Australia

Publications/References

Tanimura, A., Oka, N., Kawaguchi, S., Nishikawa, J., Takahashi, K.T., Makabe, R., Hosie, G., Odate, T. (2008), Distribution pattern of macrozooplankton along the 140oE meridian in the Southern Ocean during austral summer 2002 and 2003, Nankyoku Shiryo (Antarctic Record), 1, 52, 13555, 1-8, AAS Project 2337

Creation and Review Dates

DIF Creation Date: 2009-04-21

Last DIF Revision Date: 2012-02-06

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