globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.12198
论文题名:
Extreme plasticity in life-history strategy allows a migratory predator (jumbo squid) to cope with a changing climate
作者: Hoving H.-J.T.; Gilly W.F.; Markaida U.; Benoit-Bird K.J.; -Brown Z.W.; Daniel P.; Field J.C.; Parassenti L.; Liu B.; Campos B.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2013
卷: 19, 期:7
起始页码: 2089
结束页码: 2103
语种: 英语
英文关键词: El Nino ; Jumbo squid ; Maturation ; Migration ; Range extension
Scopus关键词: sea water ; adaptation ; biomass ; body shape ; body size ; climate change ; climate effect ; ecological impact ; El Nino ; life history trait ; marine ecosystem ; migratory behavior ; migratory species ; predator ; range expansion ; acclimatization ; aging ; animal ; article ; cephalopod ; climate change ; fertility ; fishery ; growth, development and aging ; morphometrics ; physiology ; population migration ; predation ; United States ; Acclimatization ; Aging ; Animal Migration ; Animals ; Body Weights and Measures ; California ; Climate Change ; Decapodiformes ; Fertility ; Fisheries ; Predatory Behavior ; Seawater ; Gulf of California ; Pacific Ocean ; Animalia ; Cephalopoda ; Dosidicus gigas
英文摘要: Dosidicus gigas (jumbo or Humboldt squid) is a semelparous, major predator of the eastern Pacific that is ecologically and commercially important. In the Gulf of California, these animals mature at large size (>55 cm mantle length) in 1-1.5 years and have supported a major commercial fishery in the Guaymas Basin during the last 20 years. An El Niño event in 2009-2010, was accompanied by a collapse of this fishery, and squid in the region showed major changes in the distribution and life-history strategy. Large squid abandoned seasonal coastal-shelf habitats in 2010 and instead were found in the Salsipuedes Basin to the north, an area buffered from the effects of El Niño by tidal upwelling and a well-mixed water column. The commercial fishery also relocated to this region. Although large squid were not found in the Guaymas Basin from 2010 to 2012, small squid were abundant and matured at an unusually small mantle-length (<30 cm) and young age (approximately 6 months). Juvenile squid thus appeared to respond to El Niño with an alternative life-history trajectory in which gigantism and high fecundity in normally productive coastal-shelf habitats were traded for accelerated reproduction at small size in an offshore environment. Both small and large mature squid, were present in the Salsipuedes Basin during 2011, indicating that both life- history strategies can coexist. Hydro-acoustic data, reveal that squid biomass in this study area nearly doubled between 2010 and 2011, primarily due to a large increase in small squid that were not susceptible to the fishery. Such a climate-driven switch in size-at-maturity may allow D. gigas to rapidly adapt to and cope with El Niño. This ability is likely to be an important factor in conjunction with longerterm climate-change and the potential ecological impacts of this invasive predator on marine ecosystems. © 2013 Blackwell Publishing Ltd.
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被引频次[WOS]:96   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62397
Appears in Collections:影响、适应和脆弱性

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作者单位: Monterey Bay Aquarium Research Institute, 7700 Sandholdt Road, Moss Landing, CA, 95039, United States; Hopkins Marine Station of Stanford University, 120 Oceanview Ave, Pacific Grove, CA, 93950, United States; El Colegio de la Frontera Sur, CONACyT, Ciudad Industrial Lerma, Avenida Rancho, Polígono 2A, Campeche, 24500, Mexico; College of Earth, Ocean, and Atmospheric Sciences, 104 CEOAS Admin Bldg, Corvallis, OR, 97331-5503, United States; Department of Environmental Earth System Science, Stanford University, 473 Via Ortega, Room 140, Stanford, CA, 94305, United States; Fisheries Ecology Division, NOAA Southwest Fisheries Science Center, 110 Shaffer Road, Santa Cruz, CA, 95060, United States; College of Marine Sciences, Shanghai Ocean University, Hucheng Ring Road 999, Lingang New City, Shanghai, China; Universidad de Valparaíso, Casilla 5080 Reñaca, Viña del Mar, Chile

Recommended Citation:
Hoving H.-J.T.,Gilly W.F.,Markaida U.,et al. Extreme plasticity in life-history strategy allows a migratory predator (jumbo squid) to cope with a changing climate[J]. Global Change Biology,2013-01-01,19(7)
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