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?
Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
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N: -77.85
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S: -77.85
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E: 166.63
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W: 166.63
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Min Depth:
0
Max Depth:
62
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N: -72.35
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S: -72.35
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E: 170.18
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W: 170.18
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Min Depth:
0
Max Depth:
>100
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N: -74.63
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S: -74.63
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E: 164.2
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W: 164.2
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Min Depth:
0
Max Depth:
50
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N: -77.01
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S: -77.01
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E: 162.88
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W: 162.88
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Min Depth:
0
Max Depth:
50
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N: -77.02
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S: -77.02
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E: 162.89
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W: 162.89
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Min Depth:
0
Max Depth:
50
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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
Data Set Progress
COMPLETE
Data Center
National Snow and Ice Data Center
Data Center URL:
http://nsidc.org
Dataset ID:
GGD353
| Data Center Personnel |
Name:
NSIDC
USER SERVICES
Phone:
+1 (303) 492-6199
Fax:
+1 (303) 492-2468
Email:
nsidc at nsidc.org
Contact Address:
National Snow and Ice Data Center
CIRES, 449 UCB
University of Colorado
City:
Boulder
Province or State:
CO
Postal Code:
80309-0449
Country:
USA
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Distribution
Distribution Media:
FTP
Distribution Size:
865 KB
Distribution Format:
RTF
Personnel
Role:
INVESTIGATOR
Phone:
613-992-2469
Fax:
613-992-0190
Email:
mnixon at nrcan-rncan.gc.ca
Contact Address:
Geological Survey of Canada
191- 601 rue Booth Street
City:
Ottawa
Province or State:
Ontario
Postal Code:
K1A 0E8
Country:
Canada
Role:
INVESTIGATOR
Phone:
604-822-2663
Fax:
604-822-6150
Contact Address:
University of British Columbia
Department of Geography
217-1984 West Mall
City:
Vancouver
Province or State:
BC
Postal Code:
V6T 1Z2
Country:
Canada
Publications/References
Aylsworth, J.M., and P.A. Egginton. 1994. Sensitivity of slopes to climate change. Mackenzie Basin Impact Study, Interim report #2, Proceedings of the sixth biennial AES/DIAND meeting on northern climate & mid study workshop of the Mackenzie basin impact study. Environment Canada. Dyke, L.D., 2000. Stability of permafrost slopes in the Mackenzie Valley; In The Physical Environment of the ... Mackenzie Valley, Northwest Territories: A Base Line for the Assessment of Environmental Change, Dyke LD, Brooks GR (eds). Bulletin 547, Geological Survey of Canada, p. 161–169. Edlund, S.A., B.T. Alt, and K.L. Young. 1989. Interaction of climate, vegetation, and soil hydrology at Hot Weather Creek, Fosheim Peninsula, Ellesmere Island, Northwest Territories. In Current Research 1989-D. Ottawa: Geological Survey of Canada. Hinzman, L.D., and D.L. Kane. 1992. Potential response of an arctic watershed during a period of global warming. Journal of Geophysical Research 97(D3): 2811-2820. Kokelj S.V. and C.R. Burn, 2005. Geochemistry of the active layer and near-surface permafrost, Mackenzie delta region, Northwest Territories, Canada; Canadian Journal of Earth Sciences, 42(1), p. 37-48. Mackay, J.R. 1976. Ice-wedges as indicators of recent climatic change, western Arctic coast. In Current Research 1976-A. Ottawa: Geological Survey of Canada. Mackay, J.R. 1975. The stability of permafrost and recent climatic change in the Mackenzie Valley, N.W.T. In Report of Activities, Part B, Geological Survey of Canada, Paper 75-1B. Ottawa: Geological Survey of Canada. Mackay, J.R. 1973. A frost tube for the determination of freezing in the active layer above permafrost. Canadian Geotechnical Journal 10: 392-396. Nixon, F.M. 2000. Thaw-depth monitoring. In Physical Environment of the Mackenzie Valley, Northwest Territories: a Base Line for the Assessment of Environmental Change, L.D. Dyke and G.R. Brooks, eds. Geological Survey of Canada Bulletin 547: 119-126. Nixon, F.M., and A.E. Taylor. 1998. Regional active layer monitoring across the sporadic, discontinuous and continuous permafrost zones, Mackenzie Valley, northwestern Canada. Proceedings of the 7th International Conference on Permafrost, Yellowknife. Nixon, F.M., A.E. Taylor, V.S. Allen, and F. Wright. 1995. Active layer monitoring in natural environments, lower Mackenzie Valley, Northwest Territories. In Current Research 1995-B. Ottawa: Geological Survey of Canada. Nixon, F.M., and A.E. Taylor. 1994. Active layer monitoring in natural environments, Mackenzie Valley, Northwest Territories. In Current Research 1994-B. Ottawa: Geological Survey of Canada. Nixon, F.M., C. Tarnocai, and L. Kutny. 2003. Long-term active layer monitoring: Mackenzie Valley, northwest Canada. In Permafrost, Vol. 2, M. Philips, S. Springman, and L.U. Arenson, eds. Lisse, The Netherlands: A.A. Balkema Publishers, Swets & Zeitlinger. Smith, S.L., M.M. Burgess, and F.M. Nixon. 2001. Response of active-layer and permafrost temperatures to warming during 1998 in the Mackenzie Delta, Northwest Territories and at Canadian Forces Station Alert and Baker Lake, Nunavut. In Current Research 2001-E5. Ottawa: Geological Survey of Canada. Tarnocai C., F.M. Nixon, and L. Kutny. 2004. Circumpolar Active-Layer Monitoring (CALM) sites in the Mackenzie Valley, northwestern Canada. Permafrost and Periglacial Processes 15(2): 141-153. Quinton WL, Shirazi T, Carey SK, Pomeroy JW., 2005. Soil water storage and active-layer development in a sub-alpine tundra hillslope, southern Yukon Territory, Canada; Permafrost and Periglacial Processes, 16: p. 369–382. Waelbroeck, C., P. Monfray, W.C. Oechel, S. Hastings, and G. Vourlitis. 1997. The impact of permafrost thawing on the carbon dynamics of tundra. Geophysical Research Letters 24: 229-232. Wolfe, S.A., E. Kotler, and F.M. Nixon. 2000. Recent warming impacts in the Mackenzie Delta, Northwest Territories, and northern Yukon Territory coastal areas. In Current Research 2000-B1. Ottawa: Geological Survey of Canada. Document is available online at: http://gsc.nrcan.gc.ca/bookstore/.
Creation and Review Dates
Last DIF Revision Date:
2011-01-24
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