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DOI | 10.1016/j.ecolind.2018.09.022 |
Effects of temperature on larval American lobster (Homarus americanus): Is there a trade-off between growth rate and developmental stability? | |
Harrington, Amalia M.1,2; Tudor, M. Scarlett2,3; Reese, Helen R.1; Bouchard, Deborah A.2,3; Hamlin, Heather J.1,2 | |
发表日期 | 2019 |
ISSN | 1470-160X |
EISSN | 1872-7034 |
卷号 | 96页码:404-411 |
英文摘要 | The American lobster supports the most economically valuable fishery in the Gulf of Maine and Atlantic Canada. Across much of its range, ocean temperatures have increased at rates faster than almost anywhere in the world. Studies of warming effects on larvae have largely focused on survival and development, but rarely have examined sub-lethal effects that could influence settlement and subsequent recruitment to the fishery. We explored how warming influences rate of development, survival, stress, and developmental stability of larval lobsters reared under four nominal temperatures: 14, 16, 18, and 22 degrees C. Our study is the first to evaluate the use of fluctuating asymmetry as a biomarker for developmental instability in larval American lobster. We also recorded total hemocyte counts in postlarvae as an indicator of stress, a novel technique for work in larval lobster. Development proceeded significantly faster as temperature increased, and cumulative survival was significantly positively correlated with temperature. However, postlarvae reared under temperature extremes exhibited elevated hemocyte counts and had significantly lower levels of variance in midline asymmetry compared to intermediate temperature groups. Together, this suggests that warmer temperatures may facilitate faster growth at the expense of increased physiological stress and a loss of genetic diversity, potentially affecting the species' ability to adapt to changing environmental conditions. Fluctuating asymmetry could prove to be a useful bioindicator for population resilience. |
WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
来源期刊 | ECOLOGICAL INDICATORS
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文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/90774 |
作者单位 | 1.Univ Maine, Sch Marine Sci, 5751 Murray Hall, Orono, ME 04469 USA; 2.Univ Maine, Aquaculture Res Inst, Orono, ME 04469 USA; 3.Univ Maine, Cooperat Extens, 5735 Hitchner Hall, Orono, ME 04469 USA |
推荐引用方式 GB/T 7714 | Harrington, Amalia M.,Tudor, M. Scarlett,Reese, Helen R.,et al. Effects of temperature on larval American lobster (Homarus americanus): Is there a trade-off between growth rate and developmental stability?[J],2019,96:404-411. |
APA | Harrington, Amalia M.,Tudor, M. Scarlett,Reese, Helen R.,Bouchard, Deborah A.,&Hamlin, Heather J..(2019).Effects of temperature on larval American lobster (Homarus americanus): Is there a trade-off between growth rate and developmental stability?.ECOLOGICAL INDICATORS,96,404-411. |
MLA | Harrington, Amalia M.,et al."Effects of temperature on larval American lobster (Homarus americanus): Is there a trade-off between growth rate and developmental stability?".ECOLOGICAL INDICATORS 96(2019):404-411. |
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