Northwest Atlantic mackerel population structure evaluated using otolith δ~(18)O composition

Redding S. Gray; Cooper L. W.; Castonguay M.; Wiernicki C.; Secor D. H.

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Northwest Atlantic mackerel population structure evaluated using otolith δ~(18)O composition

机译：西北大西洋鲭鱼群体结构使用偏靠Δ〜（18）O组成评估

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The Northwest Atlantic mackerel (Scomber scombrus) population is comprised of northern and southern contingents, each with distinct natal regions in the United States and Canada. We tested hypotheses on natal origin and contingent mixing by analysing natal otolith delta O-18 values, evaluating the approach through an out-group comparison with the Northeast Atlantic population. Otolith delta O-18 values varied according to expectations between the Northeast (higher) and the Northwest (lower) Atlantic basins, and between contingents within the Northwest Atlantic stock, although contingent differences varied between years. Most adults (age-3+ years) sampled from US waters (1999-2003) represented the northern contingent (Canadian spawning site). The confirmation of the seasonal mixing of older and larger fish between the two contingents provides support and justification for the development of bi-national (United States-Canada) assessment and management of Northwest Atlantic mackerel.

机译：西北大西洋鲭鱼（Scomber Scombrus）人口由北部和南方特遣队组成，每个北方特遣队都包括美国和加拿大不同的纳塔纳地区。我们通过分析NaTal Otolith Delta O-18值，通过分析Natal Otolith Delta O-18值测试了对Natal Origin的假设，通过与东北大西洋人口的out-Group比较来评估方法。奥罗特斯特节O-18值根据东北（高）和西北（下部）大西洋盆地之间的期望而变化，以及西北大西洋股票中的特遣队，尽管年数之间存在不同的差异。来自美国水域（1999-2003）取样的大多数成年人（年龄-3 +岁）代表了北方特遣队（加拿大产卵网站）。两位特遣队之间老年人和较大鱼类季节混合的确认为西北大西洋鲭鱼的双国家（美国 - 加拿大）评估和管理提供了支持和理由。

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《ICES Journal of Marine Science》 |2020年第8期|2582-2589|共8页
作者
Redding S. Gray; Cooper L. W.; Castonguay M.; Wiernicki C.; Secor D. H.;
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作者单位

Univ Maryland Ctr Environm Sci Chesapeake Biol Lab POB 38 Solomons MD 20688 USA|Natl Fish & Wildlife Fdn 1133 15th St NW 1000 Washington DC 20005 USA;

Univ Maryland Ctr Environm Sci Chesapeake Biol Lab POB 38 Solomons MD 20688 USA;

Fisheries & Oceans Canada Maurice Lamontagne Inst 850 Route Mer Mont Joli PQ G5H 3Z4 Canada;

Univ Maryland Ctr Environm Sci Chesapeake Biol Lab POB 38 Solomons MD 20688 USA;

Univ Maryland Ctr Environm Sci Chesapeake Biol Lab POB 38 Solomons MD 20688 USA;

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正文语种 eng
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Atlantic mackerel; otolith stable isotopes; population structure;

机译：大西洋鲭鱼;奥罗思稳定同位素;人口结构;

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2. Otolith shape analysis as a tool to infer the population structure of the blue jack mackerel, Trachurus picturatus, in the NE Atlantic [J] . Moreira C., Froufe E., Vaz-Pires P., Fisheries Research . 2019,第期

机译：otleith形状分析作为推断蓝杰克鲭鱼，格拉鲁勒图麦卢拉特的人口结构的工具，在侄子大西洋
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5. Atlantic Mackerel (Scomber scombrus) Population and Habitat Trends in the Northwest Atlantic [D] . McManus, M. Conor. 2017

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6. Phylogeography and population history of Atlantic mackerel (Scomber scombrus L.): a genealogical approach reveals genetic structuring among the eastern Atlantic stocks. [O] . C L Nesbø, E K Rueness, S A Iversen, 2000

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7. Multi-decadal trends in contingent mixing of Atlantic mackerel (Scomber scombrus) in the Northwest Atlantic from otolith stable isotopes [O] . Kohma Arai, Martin Castonguay, David H. Secor 2021

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8. Effects of Density Dependent Population Mechanisms on Assessment Advice for the Northwest Atlantic Mackerel Stock [R] . Overholtz, W. J. , Murawski, S. A. , Michaels, W. L. , 1988

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Northwest Atlantic mackerel population structure evaluated using otolith δ~(18)O composition

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