Marine and continental distribution and dynamic of the early spawning migration of twaite shad (Alosa fallax (Lacépède, 1803)) and allis shad (Alosa alosa (Linnaeus, 1758)) in the north-west of the Iberian Peninsula

D. J. Nachón; M. Moţa; C. Antunes; M. J. Servia; F. Cobo

doi:10.1071/mf14243

journal article Sep 28, 2015

Marine and continental distribution and dynamic of the early spawning migration of twaite shad (Alosa fallax (Lacépède, 1803)) and allis shad (Alosa alosa (Linnaeus, 1758)) in the north-west of the Iberian Peninsula

D. J. Nachón M. Moţa C. Antunes M. J. Servia F. Cobo

Marine and Freshwater Research Vol. 67 No. 8 pp. 1229-1240 · CSIRO Publishing

View at Publisher Save 10.1071/mf14243

Abstract

Knowledge regarding the marine phase of twaite shad (Alosa fallax (Lacépède, 1803)) and allis shad (Alosa alosa (Linnaeus, 1758)) remains limited. To understand the coastal and continental distribution and dynamic of migration of these species, in the present study we collected official data records of marine landings (kg), separated according to species, for all fish markets in Galicia (north-west of the Iberian Peninsula) and undertook freshwater field sampling campaigns. The findings indicate that both species of shad exhibit a coastal distribution near the rivers where they spawn, namely the Minho and Ulla rivers. Catches at sea declined from January, a phenomenon that can be understood as the onset of migration to the rivers. Bycatch reports are important because both A. fallax and A. alosa are listed in the Annex V of the European Union Habitats Directive, which lists animal species whose exploitation and taking in the wild may be subject to management measures. However, for a better management of these species it is necessary to understand the magnitude of displacements and connection of shad populations at sea.

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Published: Sep 28, 2015
Vol/Issue: 67(8)
Pages: 1229-1240
License: View

Authors

D

D. J. Nachón

ADepartamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, Campus Vida, Lope Gómez de Marzoa s/n, E-15782 Santiago de Compostela, Spain.; BEstación de Hidrobioloxía ‘Encoro do Con’, Universidade de Santiago de Compostela, Castroagudín s/n, E-36617 Vilagarcía de Arousa, Pontevedra, Spain.; GCorresponding author. Email: davidjose.nachon@usc.es

M

M. Moţa

CBiomedical Sciences Institute Abel Salazar, University of Porto, Rua de Jorge Viterbo Ferreira 228, PT-4050-313 Porto, Portugal.; DInterdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Rua dos Bragas 289, PT-4050-123 Porto, Portugal.; EMinho River Aquamuseum, Parque do Castelinho, PT-4920-290 Vila Nova de Cerveira, Portugal.

C

C. Antunes

DInterdisciplinary Centre of Marine and Environmental Research (CIIMAR/CIMAR), University of Porto, Rua dos Bragas 289, PT-4050-123 Porto, Portugal.; EMinho River Aquamuseum, Parque do Castelinho, PT-4920-290 Vila Nova de Cerveira, Portugal.

M

M. J. Servia

FDepartment of Animal Biology, Plant Biology and Ecology, Faculty of Sciences, University of A Coruña, Campus da Zapateira s/n, E-15008 A Coruña, Spain.

F

F. Cobo

ADepartamento de Zooloxía e Antropoloxía Física, Facultade de Bioloxía, Universidade de Santiago de Compostela, Campus Vida, Lope Gómez de Marzoa s/n, E-15782 Santiago de Compostela, Spain.; BEstación de Hidrobioloxía ‘Encoro do Con’, Universidade de Santiago de Compostela, Castroagudín s/n, E-36617 Vilagarcía de Arousa, Pontevedra, Spain.

Cite This Article

D. J. Nachón, M. Moţa, C. Antunes, et al. (2015). Marine and continental distribution and dynamic of the early spawning migration of twaite shad (Alosa fallax (Lacépède, 1803)) and allis shad (Alosa alosa (Linnaeus, 1758)) in the north-west of the Iberian Peninsula. Marine and Freshwater Research, 67(8), 1229-1240. https://doi.org/10.1071/mf14243

Marine and continental distribution and dynamic of the early spawning migration of twaite shad (Alosa fallax (Lacépède, 1803)) and allis shad (Alosa alosa (Linnaeus, 1758)) in the north-west of the Iberian Peninsula

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