The distribution and abundance patterns of meroplankton in the Ross Sea region
Entry ID: K018_2002_2008_NZ_1

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Summary
Abstract: The pelagic community of the Ross Sea consists of a permanent component (=holoplankton) and a temporary component which is primarily made up from the larval stages of benthic marine invertebrates and fish (= the meroplankton). The distribution and abundance pattern of the meroplankton in the Ross Sea was investigated. A combined morphological and molecular approach was used to identify the common larval "types" collected from sites in the Ross Sea along the Victoria Land coast including McMurdo Sound, Granite Harbour, Gerlache Inlet (Terra Nova Bay), and Cape Hallett. Daily samples (where possible) of meroplankton larva were collected in early summer (Nov/Dec) using a 100 micron collapsible plankton net. Plankton samples were sorted fresh, the larvae were quantified and specimens were photographed and preserved for DNA sequence analysis and morphological description. One plankton sample from each site was preserved in a formalin based Steedman's fix and taken to the University of Auckland as a reference samples. A filter bag from the seawater intake to the RO-plant at Scott Base was also analysed. Adult marine invertebrate samples were received from other events sampling efforts and used to form the beginnings of an adult invertebrate database by comparing larval gene sequences with adult sequences. The questions the project specifically addresses are: 1) Is there a latitudinal gradient in meroplankton biodiversity and abundance along the Victoria Land Coast?, and 2) using molecular sequencing, can we quantify the distribution and abundance of common marine invertebrate larvae for a better understanding of the functioning of marine benthic communities in the Ross Sea?

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Geographic Coverage
 N: -77.85 S: -77.85  E: 166.6333  W: 166.6333
 Min Depth: 0  Max Depth: 62
 N: -72.3472 S: -72.3472  E: 170.1833  W: 170.1833
 Min Depth: 0  Max Depth: >100
 N: -74.6333 S: -74.6333  E: 164.2  W: 164.2
 Min Depth: 0  Max Depth: 50
 N: -77.0121 S: -77.0121  E: 162.8841  W: 162.8841
 Min Depth: 0  Max Depth: 50
 N: -77.0156 S: -77.0156  E: 162.8858  W: 162.8858
 Min Depth: 0  Max Depth: 50

Temporal Coverage
Start Date: 2002-11-21
Stop Date: 2002-12-14

Start Date: 2003-11-22
Stop Date: 2003-12-13

Start Date: 2004-11-14
Stop Date: 2004-12-05

Start Date: 2006-11-13
Stop Date: 2006-12-06

Start Date: 2007-11-14
Stop Date: 2007-12-06

Start Date: 2008-11-17
Stop Date: 2008-12-06

Start Date: 2009-11-17
Stop Date: 2009-12-01


Location Keywords
CONTINENT > ANTARCTICA > Terra Nova Bay
CONTINENT > ANTARCTICA > CAPE HALLETT
CONTINENT > ANTARCTICA > GRANITE HARBOUR
CONTINENT > ANTARCTICA > Gerlache Inlet
GEOGRAPHIC REGION > POLAR
OCEAN > SOUTHERN OCEAN > ROSS SEA


Science Keywords
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH    [Definition]
BIOLOGICAL CLASSIFICATION >ANIMALS/INVERTEBRATES    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >PLANKTON >ZOOPLANKTON    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >BENTHIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >PELAGIC HABITAT    [Definition]
BIOSPHERE >AQUATIC ECOSYSTEMS >MARINE HABITAT    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >BIODIVERSITY FUNCTIONS    [Definition]
BIOSPHERE >ECOLOGICAL DYNAMICS >COMMUNITY DYNAMICS >COMMUNITY STRUCTURE    [Definition]


ISO Topic Category
BIOTA


Instrument
PLANKTON NETS    [Information]


Project
LGP >Latitudinal Gradient Project    [Information]
IPY >INTERNATIONAL POLAR YEAR    [Information]
CAML >CENSUS OF ANTARCTIC MARINE LIFE    [Information]
COML >CENSUS OF MARINE LIFE    [Information]
EBA >Evolution and Biodiversity in the Antarctic    [Information]


Keywords
MEROPLANKTON
HOLOPLANKTON


Data Set Progress
COMPLETE


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
MARY SEWELL
Role: INVESTIGATOR
Phone: +64 9 373 7599 ext. 83758
Fax: +64 9 373 7417
Email: m.sewell at auckland.ac.nz
Contact Address:
School of Biological Sciences,
University of Auckland,
Private Bag 92019
City: Auckland
Postal Code: 92019
Country: NEW ZEALAND


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Sewell, M.A. Examination of the meroplankton community in the south-western Ross Sea, Antarctica, using a collapsible plankton net. Polar biology 28: 119-131, 2005.

Sewell, M.A. The meroplankton community of the northern Ross Sea: a preliminary comparison with the McMurdo Sound region. Antarctic science 18(4): 595-602, 2006.

Sewell, M.A., Lavery, S., Baker, C.S. (2006) ‘Whose larvae is that? Molecular identification of planktonic larvae of the Ross Sea’. New Zealand Aquatic Environment and Biodiversity Report No. 3. 57 pp.

Suberg, L. (2008) Diversity, abundance and distribution of coastal meroplankton along the Victoria Land Coast, Antarctica. MSc thesis, University of Auckland, 156 pp.

Creation and Review Dates
DIF Creation Date: 2005-09-22
Last DIF Revision Date: 2010-09-20

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