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Richardson, AJ and McKinnon, D and Swadling, KM, Zooplankton, A Marine Climate Change Impacts and Adaptation Report Card for Australia 2009, CSIRO, E.S. Poloczanska, A.J. Hobday and A.J. Richardson (ed), Australia, pp. 2-15. ISBN 978-1-921609-03-9 (2009) [Research Book Chapter]

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Copyright 2009 CSIRO

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Currently, there are no published observed impacts of climate change on zooplankton in Australian waters; rather than evidence of a lack of response, this dearth of knowledge is probably due to the lack of long-term datasets on Australian zooplankton. Anecdotally, there is evidence that some subtropical species are extending their range southwards (polewards) along the east coast of Tasmania as a result of the southwards penetration of the East Australian Current, while typically cold-water species are retracting towards the pole. The three most important aspects of climate change for zooplankton are temperature, acidification and nutrient enrichment, based on knowledge of impacts of climate change on zooplankton from research around the world. In the northern hemisphere, zooplankton distributions are moving north (polewards) as the seas warm, leading to new re-arrangement of plankton communities. The timing of zooplankton peak abundance appears to be responding faster than the timing of biological events of terrestrial animals and plants such as breeding and blossoming. However, in temperate regions, the timing of peaks in abundance of various plankton functional groups does not always respond to ocean warming synchronously, resulting in a mismatch between predators and the availability of their prey. Ocean acidification may mean that calcifying zooplankton such as pteropods, decline first in the Southern Ocean and later from mainland Australian waters. Indirect impacts of climate change on the nutrient enrichment regime could outweigh the direct impacts of temperature change and ocean acidification, particularly in oligotrophic (low nutrient) tropical regions with little seasonality, such as those in Northern Australia. Changes to the zooplankton community in response to changes in temperature, acidification and in particular nutrient enrichment will resonate throughout

Item Details

Item Type:Research Book Chapter
Keywords:climate change, Australia
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and estuarine ecology (incl. marine ichthyology)
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Marine biodiversity
UTAS Author:Swadling, KM (Associate Professor Kerrie Swadling)
ID Code:88996
Year Published:2009
Deposited By:IMAS Research and Education Centre
Deposited On:2014-02-22
Last Modified:2014-08-19

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