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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.12452
|2 doi
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|a pubmed25n0776.xml
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|a (DE-627)NLM23307922X
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|a (NLM)24277276
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Johansen, J L
|e verfasserin
|4 aut
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| 245 |
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|a Increasing ocean temperatures reduce activity patterns of a large commercially important coral reef fish
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|c 2014
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 11.05.2015
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|a Date Revised 03.03.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2013 John Wiley & Sons Ltd.
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|a Large-bodied fish are critical for sustaining coral reef fisheries, but little is known about the vulnerability of these fish to global warming. This study examined the effects of elevated temperatures on the movement and activity patterns of the common coral trout Plectropomus leopardus (Serranidae), which is an important fishery species in tropical Australia and throughout the Indo West-Pacific. Adult fish were collected from two locations on Australia's Great Barrier Reef (23°S and 14°S) and maintained at one of four temperatures (24, 27, 30, 33 °C). Following >4 weeks acclimation, the spontaneous swimming speeds and activity patterns of individuals were recorded over a period of 12 days. At 24-27 °C, spontaneous swimming speeds of common coral trout were 0.43-0.45 body lengths per second (bls(-1)), but dropped sharply to 0.29 bls(-1) at 30 °C and 0.25 bls(-1) at 33 °C. Concurrently, individuals spent 9.3-10.6% of their time resting motionless on the bottom at 24-27 °C, but this behaviour increased to 14.0% at 30 °C and 20.0% of the time at 33 °C (mean ± SE). The impact of temperature was greatest for smaller individuals (<45 cm TL), showing significant changes to swimming speeds across every temperature tested, while medium (45-55 cm TL) and large individuals (>55 cm TL) were first affected by 30 °C and 33 °C, respectively. Importantly, there was some indication that populations can adapt to elevated temperature if presented with adequate time, as the high-latitude population decreased significantly in swimming speeds at both 30 °C and 33 °C, while the low-latitude population only showed significant reductions at 33 °C. Given that movement and activity patterns of large mobile species are directly related to prey encounter rates, ability to capture prey and avoid predators, any reductions in activity patterns are likely to reduce overall foraging and energy intake, limit the energy available for growth and reproduction, and affect the fitness and survival of individuals and populations
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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4 |
|a Coral trout
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| 650 |
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4 |
|a Plectropomus leopardus
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a conservation
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| 650 |
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4 |
|a fisheries
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| 650 |
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4 |
|a global warming
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| 650 |
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4 |
|a management
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| 650 |
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4 |
|a reserves
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| 650 |
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4 |
|a resting
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| 650 |
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4 |
|a swimming speeds
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| 700 |
1 |
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|a Messmer, V
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Coker, D J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hoey, A S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Pratchett, M S
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 20(2014), 4 vom: 25. Apr., Seite 1067-74
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
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|g volume:20
|g year:2014
|g number:4
|g day:25
|g month:04
|g pages:1067-74
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.12452
|3 Volltext
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