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Climate change cascades: Shifts in oceanography, species' ranges and subtidal marine community dynamics in eastern Tasmania

journal contribution
posted on 2023-05-17, 06:07 authored by Craig JohnsonCraig Johnson, Banks, SC, Neville BarrettNeville Barrett, Cazassus, F, Dunstan, PK, Graham EdgarGraham Edgar, Stewart FrusherStewart Frusher, Caleb GardnerCaleb Gardner, Haddon, M, Helidoniotis, F, Hill, KL, Neil HolbrookNeil Holbrook, Hosie, GW, Last, PR, Scott LingScott Ling, Jessica Melbourne-ThomasJessica Melbourne-Thomas, Miller, K, Gretta PeclGretta Pecl, Richardson, AJ, Ridgway, KR, Rintoul, SR, Ritz, DA, Donald RossDonald Ross, John Sanderson, Shepherd, SA, Slotwinski, A, Kerrie SwadlingKerrie Swadling, Taw, N
Several lines of evidence show that ocean warming off the east coast of Tasmania is the result of intensification of the East Australian Current (EAC). Increases in the strength, duration and frequency of southward incursions of warm, nutrient poor EAC water transports heat and biota to eastern Tasmania. This shift in large scale oceanography is reflected by changes in the structure of nearshore zooplankton communities and other elements of the pelagic system; by a regional decline in dthe extent of dense beds of giant kelp (Mactosystis pyrifera;by marked changes in the distribution of nearshore fishes; and by range expansions of other northern warmer water species to colonise Tasmanian coastal waters. Population-level changes in commercially important invertebrate species may also be associated with the warming trend.

History

Publication title

Journal of Experimental Marine Biology and Ecology

Volume

400

Issue

1-2

Pagination

17-32

ISSN

0022-0981

Department/School

Institute for Marine and Antarctic Studies

Publisher

Elsevier Science Bv

Place of publication

Po Box 211, Amsterdam, Netherlands, 1000 Ae

Rights statement

The definitive version is available at http://www.sciencedirect.com

Repository Status

  • Restricted

Socio-economic Objectives

Expanding knowledge in the environmental sciences

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