干旱区生态环境知识资源中心(Arid): Abundance and nutritional status of freshwater turtles to guide delivery of environmental flows in the Murray-Darling Basin, south-eastern Australia

Arid

DOI	10.1002/aqc.3767
	Abundance and nutritional status of freshwater turtles to guide delivery of environmental flows in the Murray-Darling Basin, south-eastern Australia
	Francis, Roxane J.; Brandis, Kate J.; Chessman, Bruce C.; Slavich, Eve; Kingsford, Richard T.
通讯作者	Francis, RJ (corresponding author)，UNSW, Sch Biol Earth & Environm Sci, Ctr Ecosyst Sci, Sydney, NSW 2052, Australia.
来源期刊	AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
ISSN	1052-7613
EISSN	1099-0755
出版年	2022
卷号	32 期号:2 页码:282-293
英文摘要	Almost half of Australian freshwater turtle species are formally listed as threatened, but little is known about the effects of water management and other factors on the abundance and health of freshwater turtles in arid and semi-arid regions. This study investigated how river flows (including the controlled release of water from an upstream storage facility, or 'environmental flow') and water quality might affect the abundance and nutritional status of three freshwater turtle species in three dryland rivers of the Murray-Darling basin in south-eastern Australia. No response in abundance or nutritional status of the broad-shelled turtle, Chelodina expansa, the eastern long-necked turtle, Chelodina longicollis, and the Macquarie turtle, Emydura macquarii, was detected in relation to river flows, possibly because of the small magnitude of the environmental flow. However, for C. expansa, the catch per unit effort (CPUE) was negatively related to increasing macrophyte cover, electrical conductivity (EC, an indicator of salinity), and turbidity. CPUE for C. longicollis was positively related to macrophyte cover and EC, and for E. macquarii it was positively related to macrophyte cover. Haematological measurements suggested that the turtles had healthy nutritional status. Body condition and blood glucose and protein were related significantly to EC, whereas haematological measurements varied significantly among species and between spring and summer. The main conclusion is that water management measures to help the conservation of these turtles should include sufficient environmental flow to produce overbank flooding, thereby creating and maintaining a wide range of habitat suitable for the differing needs of the individual species.
英文关键词	condition dryland rivers freshwater turtles glucose macrophytes packed cell volume protein turbidity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000743329700001
WOS关键词	SNAKE-NECKED TURTLE ; LEVEL FLUCTUATIONS ; BODY CONDITION ; ACTINEMYS-MARMORATA ; FLOODPLAIN WETLANDS ; GRAY TESTUDINES ; FINE SEDIMENT ; RIVER ; DIET ; RESPONSES
WOS类目	Environmental Sciences ; Marine & Freshwater Biology ; Water Resources
WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376546
作者单位	[Francis, Roxane J.; Brandis, Kate J.; Chessman, Bruce C.; Slavich, Eve; Kingsford, Richard T.] Univ New South Wales UNSW, Sch Biol Earth & Environm Sci, Ctr Ecosyst Sci, Sydney, NSW, Australia
推荐引用方式 GB/T 7714	Francis, Roxane J.,Brandis, Kate J.,Chessman, Bruce C.,et al. Abundance and nutritional status of freshwater turtles to guide delivery of environmental flows in the Murray-Darling Basin, south-eastern Australia[J],2022,32(2):282-293.
APA	Francis, Roxane J.,Brandis, Kate J.,Chessman, Bruce C.,Slavich, Eve,&Kingsford, Richard T..(2022).Abundance and nutritional status of freshwater turtles to guide delivery of environmental flows in the Murray-Darling Basin, south-eastern Australia.AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS,32(2),282-293.
MLA	Francis, Roxane J.,et al."Abundance and nutritional status of freshwater turtles to guide delivery of environmental flows in the Murray-Darling Basin, south-eastern Australia".AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS 32.2(2022):282-293.