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Species Extinction in the Marine Environment: Tasmania as a Regional Example of Overlooked Losses in Biodiversity

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Abstract:  We used Tasmania as a case example to question the consensus that few marine species have recently become extinct or are approaching extinction. Threats to marine and estuarine species—primarily in the form of climate change, invasive species, fishing, and catchment discharges—are accelerating, fully encompass species ranges, and are of sufficient magnitude to cause extinction. Our ignorance of declining biodiversity in the marine environment largely results from an almost complete lack of systematic broad‐scale sampling and an overreliance on physicochemical data to monitor environmental trends. Population declines for marine species approaching extinction will generally go unnoticed because of the hidden nature of their environment and lack of quantitative data.
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Language: English

Document Type: Research Article

Affiliations: 1: School of Zoology, Tasmanian Aquaculture and Fisheries Institute, University of Tasmania, Private Bag 5, Hobart, Tas 7001, Australia, 2: Tasmanian Aquaculture and Fisheries Institute, University of Tasmania, Nubeena Crescent, Taroona Tas 7053, Australia

Publication date: August 1, 2005

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