Genetic analysis of skates (Amblyraja spp.) caught as by-catch around South Georgia and the South Sandwich Islands

W.P. Goodall-Copestake; S. Pérez-Espona; P. Hollyman; M. Belchier

Genetic analysis of skates (Amblyraja spp.) caught as by-catch around South Georgia and the South Sandwich Islands

W.P. Goodall-Copestake
, S. Pérez-Espona
, P. Hollyman
, M. Belchier

SAMS UHI

科研成果: Other contribution

摘要

Skates are frequently caught as by-catch during commercial longline fishing operations within CCAMLR subareas 48.3 and 48.4. Morphological evaluations of the by-catch in these subareas indicate that up to three species from the skate genus Amblyraja occur: A. georgiana, A. georgiana sp. anon and Amblyraja taaf. In this report, we present results from the first population genetic analysis of these Amblyraja skates to assess if their current morphological classification during by-catch assessment reflects potential genetic discontinuities. Our results reveal that it is sampling location (geography), rather than morphology, that is the major determinant of population differentiation in these Southern Ocean skates.

源语言	English
类型	Scientific Report
输出媒体	Text
出版商	Commission for the Conservation of Antarctic Marine Living Resources
页数	8
卷	WG-FSA-18/73
出版状态	Published - 21 9月 2018

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title = "Genetic analysis of skates (Amblyraja spp.) caught as by-catch around South Georgia and the South Sandwich Islands",

abstract = "Skates are frequently caught as by-catch during commercial longline fishing operations within CCAMLR subareas 48.3 and 48.4. Morphological evaluations of the by-catch in these subareas indicate that up to three species from the skate genus Amblyraja occur: A. georgiana, A. georgiana sp. anon and Amblyraja taaf. In this report, we present results from the first population genetic analysis of these Amblyraja skates to assess if their current morphological classification during by-catch assessment reflects potential genetic discontinuities. Our results reveal that it is sampling location (geography), rather than morphology, that is the major determinant of population differentiation in these Southern Ocean skates.",

author = "W.P. Goodall-Copestake and S. P{\'e}rez-Espona and P. Hollyman and M. Belchier",

note = "Author not affiliated with SAMS at the time of publication",

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language = "English",

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T1 - Genetic analysis of skates (Amblyraja spp.) caught as by-catch around South Georgia and the South Sandwich Islands

AU - Goodall-Copestake, W.P.

AU - Pérez-Espona, S.

AU - Hollyman, P.

AU - Belchier, M.

N1 - Author not affiliated with SAMS at the time of publication

PY - 2018/9/21

Y1 - 2018/9/21

N2 - Skates are frequently caught as by-catch during commercial longline fishing operations within CCAMLR subareas 48.3 and 48.4. Morphological evaluations of the by-catch in these subareas indicate that up to three species from the skate genus Amblyraja occur: A. georgiana, A. georgiana sp. anon and Amblyraja taaf. In this report, we present results from the first population genetic analysis of these Amblyraja skates to assess if their current morphological classification during by-catch assessment reflects potential genetic discontinuities. Our results reveal that it is sampling location (geography), rather than morphology, that is the major determinant of population differentiation in these Southern Ocean skates.

AB - Skates are frequently caught as by-catch during commercial longline fishing operations within CCAMLR subareas 48.3 and 48.4. Morphological evaluations of the by-catch in these subareas indicate that up to three species from the skate genus Amblyraja occur: A. georgiana, A. georgiana sp. anon and Amblyraja taaf. In this report, we present results from the first population genetic analysis of these Amblyraja skates to assess if their current morphological classification during by-catch assessment reflects potential genetic discontinuities. Our results reveal that it is sampling location (geography), rather than morphology, that is the major determinant of population differentiation in these Southern Ocean skates.

M3 - Other contribution

VL - WG-FSA-18/73

PB - Commission for the Conservation of Antarctic Marine Living Resources

ER -

Genetic analysis of skates (Amblyraja spp.) caught as by-catch around South Georgia and the South Sandwich Islands

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