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Zooplankton Growth, Respiration and Grazing on the Australian Margins of the Tropical Indian and Pacific Oceans

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dc.contributor Australian Institute Of Marine Science
dc.contributor Western Australian Marine Sci Inst
dc.contributor Sch Marine & Trop Biol
dc.contributor James Cook Univ
dc.contributor James Cook University
dc.contributor Australian Inst Marine Sci BRINKMAN, RICHARD MCKINNON, A. DAVID DOYLE, JASON DUGGAN, SAMANTHA LOGAN, MURRAY LONBORG, CHRISTIAN 2017-03-21T01:02:20Z 2015-12-03T01:04:17Z 2015-12-03T01:04:17Z 2018-11-01T03:19:22Z 2015-12-03T01:04:17Z 2017-03-21T01:02:20Z 2017-03-21T01:02:20Z 2018-11-01T03:19:22Z 2015-10-15
dc.identifier.citation McKinnon AD, Doyle J, Duggan S, Logan M, Lønborg C, Brinkman R (2015) Zooplankton growth, respiration and grazing on the Australian margins of the tropical Indian and Pacific Oceans. PLoS ONE 10(10): e0140012 en_US
dc.identifier.issn 1932-6203
dc.description.abstract The specific activity of aminoacyl-tRNA synthetases (spAARS), an index of growth rate, and of the electron transport system (spETS), an index of respiration, was measured in three size fractions (73-150 mu m, > 150 mu m and > 350 mu m) of zooplankton during five cruises to tropical coastal waters of the Kimberley coast (North West Australia) and four cruises to waters of the Great Barrier Reef (GBR; North East Australia). The N-specific biomass of plankton was 3-4-fold higher in the Kimberley than on the GBR in all 3 size classes: Kimberley 1.27, 3.63, 1.94 mg m(-3); GBR 0.36, 0.88 and 0.58 mg m-3 in the 73-150 mu m, > 150 mu m and > 350 mu m size classes, respectively. Similarly, spAARS activity in the Kimberley was greater than that of the GBR: 88.4, 132.2, and 147.6 nmol PPi hr(-1) mg protein(-1) in the Kimberley compared with 71.7, 82.0 and 83.8 nmol PPi hr(-1) mg protein(-1) in the GBR, for the 73-150 mu m, > 150 mu m and > 350 mu m size classes, respectively. Specific ETS activity showed similar differences in scale between the two coasts: 184.6, 148.8 and 92.2 mu L O-2 hr(-1) mg protein-1 in the Kimberley, against 86.5, 88.3 and 71.3 mu L O2 hr(-1) mg protein(-1) in the GBR. On the basis of these measurements, we calculated that > 150 mu m zooplankton grazing accounted for 7% of primary production in the Kimberley and 8% in GBR waters. Area-specific respiration by > 73 mu m zooplankton was 7-fold higher in the Kimberley than on the GBR and production by > 150 mu m zooplankton was of the order of 278 mg C m(-2) d(-1) in the Kimberley and 42 mg C m(-2) d(-1) on the GBR. We hypothesize that the much stronger physical forcing on the North West shelf is the principal driver of higher rates in the west than in the east of the continent.
dc.description.sponsorship Core funding for this project was provided by the Australian Institute of Marine Science (AIMS). The Kimberley component was enabled by collaboration and opportunities developed by AIMS' partnership in the Western Australian Marine Science Institution. The 2011 Kimberley cruises were partially supported by Australian Research Council grant DP1095294 to Greg Ivey (University of Western Australia). The GBR component of this project received support from eReefs, a collaboration between the Great Barrier Reef Foundation, Bureau of Meteorology, Commonwealth Scientific and Industrial Research Organization, AIMS and the Queensland Government, supported by funding from the Australian and Queensland Governments, the BHP Billiton Mitsubishi Alliance and the Science and Industry Endowment Fund. en_US
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher PLoS en_US
dc.relation.ispartof Null
dc.rights Attribution 3.0 Australia *
dc.rights.uri *
dc.subject Great-barrier-reef
dc.subject Coastal Waters
dc.subject Science & Technology - Other Topics
dc.subject Community Structure
dc.subject Transfer-rna-synthetases
dc.subject Copepod Egg-production
dc.subject Multidisciplinary Sciences
dc.subject North-west-cape
dc.subject Developmental-stages
dc.subject Transport-system Activity
dc.subject Subtropical Waters Adjacent
dc.subject Marine Ecosystems
dc.title Zooplankton Growth, Respiration and Grazing on the Australian Margins of the Tropical Indian and Pacific Oceans
dc.type journal article en_US
dc.identifier.doi 10.1371/journal.pone.0140012
dc.identifier.wos WOS:000363184600025

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