DOI: 10.1007/s10584-014-1194-0
Scopus记录号: 2-s2.0-84919877630
论文题名: Clues from the recent past to assess recruitment of Mediterranean small pelagic fishes under sea warming scenarios
作者: Maynou F. ; Sabatés A. ; Salat J.
刊名: Climatic Change
ISSN: 0165-0009
EISSN: 1573-1480
出版年: 2014
卷: 126, 期: 2018-01-02 语种: 英语
Scopus关键词: Atmospheric temperature
; Fish
; Oceanography
; Surface waters
; Effect of temperature
; Engraulis encrasicolus
; Environmental factors
; Environmental forcing
; Environmental variables
; Generalized additive model
; Influence of environments
; Sea surface temperature (SST)
; Climate change
英文摘要: Knowledge of the effect of environmental variables on the early life history of fishes is essential to assess the effect of future environmental changes on the recruitment of commercial species. We investigate the effect of sea warming on two small pelagic fishes (Engraulis encrasicolus and Sardinella aurita) in the NW Mediterranean Sea based on the analysis of ichthyoplankton data collected in two surveys of contrasting conditions: the exceptionally warm summer of 2003, which may be indicative of conditions under future climate change scenarios, and the summer of 2004, with temperatures within the climatic average for the period 2000-2012. We use fine-resolution environmental variables measured locally and Generalized Additive Models to assess the influence of environment on these two summer-spawning small pelagic fishes. We show that sea surface temperature is the main environmental factor explaining abundance, but other factors (food availability and water currents) have additional roles tuning the effect of temperature. In the hot summer of 2003 we observed a decline of local egg production of anchovy and an increase of larval advection from the colder Gulf of Lions compared to 2004. Round sardinella spawning was higher in 2003 than in 2004 and extended over a wider area, but larvae viability was compromised by the lower availability of trophic resources. We hypothesize that future changes in environmental forcing on these two co-occurring summer spawning species will determine differential larval survival, with cascading effects on the upper trophic levels which feed on these species, including negative impacts on their fisheries. © 2014, Springer Science+Business Media Dordrecht. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/84802
Appears in Collections: 气候减缓与适应 气候变化事实与影响
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作者单位: Institut de Ciències del Mar, CSIC, Psg. Marítim de la Barceloneta 37-49, Barcelona, Spain
Recommended Citation:
Maynou F.,Sabatés A.,Salat J.. Clues from the recent past to assess recruitment of Mediterranean small pelagic fishes under sea warming scenarios[J]. Climatic Change,2014-01-01,126(2018-01-02)