DOI: 10.1111/gcb.12452
论文题名: Increasing ocean temperatures reduce activity patterns of a large commercially important coral reef fish
作者: Johansen J.L. ; Messmer V. ; Coker D.J. ; Hoey A.S. ; Pratchett M.S.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2014
卷: 20, 期: 4 起始页码: 1067
结束页码: 1074
语种: 英语
英文关键词: Climate change
; Conservation
; Coral trout
; Fisheries
; Global warming
; Management
; Plectropomus leopardus
; Reserves
; Resting
; Swimming speeds
Scopus关键词: activity pattern
; barrier reef
; climate change
; coral reef
; fishery management
; foraging behavior
; global warming
; growth
; perciform
; reproduction
; reserve design
; resting stage
; species conservation
; survival
; swimming behavior
; water temperature
; Australia
; Coral Sea
; Great Barrier Reef
; Indian Ocean
; Pacific Ocean
; Pacific Ocean (West)
; Queensland
; Anthozoa
; Plectropomus leopardus
; Salmonidae
; Serranidae
; acclimatization
; animal
; Australia
; coral reef
; fishery
; greenhouse effect
; movement (physiology)
; Perciformes
; physiology
; temperature
; Acclimatization
; Animals
; Australia
; Coral Reefs
; Fisheries
; Global Warming
; Movement
; Perciformes
; Temperature
英文摘要: 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. © 2013 John Wiley & Sons Ltd. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61959
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia
Recommended Citation:
Johansen J.L.,Messmer V.,Coker D.J.,et al. Increasing ocean temperatures reduce activity patterns of a large commercially important coral reef fish[J]. Global Change Biology,2014-01-01,20(4)