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Biophysical correlates of relative abundances of marine megafauna at Ningaloo Reef, Western Australia

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dc.contributor Australian Inst Marine Sci
dc.contributor Ctr Whale Res Western Australia Inc
dc.contributor Sch Environm Res
dc.contributor Inst Adv Studies
dc.contributor Hubbs Seaworld Res Inst
dc.contributor Charles Darwin University
dc.contributor Australian Institute Of Marine Science
dc.contributor Gis & Remote Sensing Grp
dc.contributor Charles Darwin Univ
dc.contributor Australian Institute Of Marine Science (aims) en BRADSHAW, COREY J. A. SLEEMAN, JAI C. MEEKAN, MARK G. WILSON, STEVEN G. JENNER, CURT K. S. JENNER, MICHELINE N. BOGGS, GUY S. STEINBERG, CRAIG C. 2017-03-21T00:47:00Z 2017-03-21T00:47:00Z 2013-02-28T06:41:13Z 2019-05-09T01:04:02Z 2017-03-21T00:47:00Z 2017-03-21T00:47:00Z 2013-02-28T06:41:13Z 2019-05-09T01:04:02Z 2007-01-01
dc.identifier 7585 en
dc.identifier.citation Sleeman JC, Meekan MG, Wilson SG, Jenner CKS, Jenner MN, Boggs GS, Steinberg CR and Bradshaw CJA (2007) Biophysical correlates of relative abundances of marine megafauna at Ningaloo Reef, Western Australia . Marine and Freshwater Research. 58: 608-623. en
dc.identifier.issn 1323-1650
dc.description Link to abstract/full text - en
dc.description.abstract Changes in the relative abundance of marine megafauna (whales, dolphins, sharks, turtles, manta rays, dugongs) from aerial survey sightings in the waters adjacent to Ningaloo Reef between June 2000 and April 2002 are described. Generalised linear models were used to explore relationships between different trophic guilds of animals (based on animal sighting biomass estimates) and biophysical features of the oceanscape that were likely to indicate foraging habitats (regions of primary/secondary production) including sea surface temperature (SST), SST gradient, chlorophylla (Chl-a), bathymetry (BTH) and bathymetry gradient (BTHg). Relative biomass of krill feeders (i.e. minke whales, whale sharks, manta rays) were related to SST, Chl-a and bathymetry (model [AIC(c)] weig ht = 0.45) and the model combining these variables explained a relatively large amount (32.3%) of the variation in relative biomass. Relative biomass of fish/ cephalopod feeders (dolphins, sharks) were weakly correlated with changes in SST, whereas that of other invertebrate/ macroalgal feeders (turtles, dugong) was weakly correlated with changes in steepness of the shelf (bathymetry gradient). Our results indicate that biophysical variables describe only a small proportion of the variance in the relative abundance and biomass of marine megafauna at Ningaloo reef.
dc.description.uri en
dc.language English
dc.language en en
dc.relation.ispartof Null
dc.relation.ispartof Marine and Freshwater Research - pages: 58: 608-623 en
dc.subject Marine Megafauna
dc.subject Galeocerdo-cuvier
dc.subject Fisheries
dc.subject Ningaloo Reef
dc.subject Grampus-griseus
dc.subject Rissos Dolphin
dc.subject Northern Australia
dc.subject Aerial Surveys
dc.subject Nutrient Dynamics
dc.subject Chlorophyll-a
dc.subject Mediterranean Sea
dc.subject Limnology
dc.subject Marine & Freshwater Biology
dc.subject Oceanography
dc.subject Exmouth Gulf
dc.subject Sea Surface Temperature
dc.subject Reproductive-biology
dc.subject Whale Sharks
dc.subject Leeuwin Current
dc.title Biophysical correlates of relative abundances of marine megafauna at Ningaloo Reef, Western Australia
dc.type journal article en
dc.identifier.doi 10.1071/MF06213
dc.identifier.wos WOS:000248489100003

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