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Sampling methods for amphipods of Posidonia oceanica meadows: a comparative study

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[Efficient sampling of amphipod crustaceans associated with Posidonia oceanica (L.) Delile meadows is difficult, due to their complex community structure and to the heterogeneity of the meadows. Here we compare three sampling techniques: the hand-towed net, the air-lift, and light traps.

Each of the methods shows specific advantages and disadvantages, hence the most important feature to consider in the choice of the method would be its adequacy with regard to the study purpose. Moreover, the most accurate way to sample amphipods from P. oceanica meadows could be to combine several methods, keeping in mind their respective strengths and weaknesses, and to adapt the sampling protocol to the aims of the study at issue. Il est difficile d'échantillonner les crustacés amphipodes associés aux herbiers à Posidonia oceanica (L.) Delile de manière efficace, en raison de la structure complexe de leur communauté et l'hétérogénéité des herbiers. Dans le cadre de cet article, nous comparons trois méthodes de prélèvement: le filet fauchoir, la suceuse à air comprimé et les pièges à lumière.

Chaque méthode montre des avantages et des inconvénients spécifiques, ce qui implique que l'élément le plus important à prendre en compte dans le choix d'une méthode est l'adéquation avec le but de l'étude. De plus, la manière la plus précise d'échantillonner les amphipodes des herbiers à P. oceanica pourrait être de combiner plusieurs méthodes, en gardant à l'esprit leurs forces et leurs faiblesses respectives, et d'adapter l'échantillonnage aux buts de l'étude.
, Efficient sampling of amphipod crustaceans associated with Posidonia oceanica (L.) Delile meadows is difficult, due to their complex community structure and to the heterogeneity of the meadows. Here we compare three sampling techniques: the hand-towed net, the air-lift, and light traps.

Each of the methods shows specific advantages and disadvantages, hence the most important feature to consider in the choice of the method would be its adequacy with regard to the study purpose. Moreover, the most accurate way to sample amphipods from P. oceanica meadows could be to combine several methods, keeping in mind their respective strengths and weaknesses, and to adapt the sampling protocol to the aims of the study at issue. Il est difficile d'échantillonner les crustacés amphipodes associés aux herbiers à Posidonia oceanica (L.) Delile de manière efficace, en raison de la structure complexe de leur communauté et l'hétérogénéité des herbiers. Dans le cadre de cet article, nous comparons trois méthodes de prélèvement: le filet fauchoir, la suceuse à air comprimé et les pièges à lumière.

Chaque méthode montre des avantages et des inconvénients spécifiques, ce qui implique que l'élément le plus important à prendre en compte dans le choix d'une méthode est l'adéquation avec le but de l'étude. De plus, la manière la plus précise d'échantillonner les amphipodes des herbiers à P. oceanica pourrait être de combiner plusieurs méthodes, en gardant à l'esprit leurs forces et leurs faiblesses respectives, et d'adapter l'échantillonnage aux buts de l'étude.
]

Affiliations: 1: Laboratory of Systematics and Animal Diversity, MARE Centre, University of Liège, Allée du 6 Août 13, B-4000 Liège, Belgium; 2: Laboratory of Oceanology, MARE Centre, University of Liège, Allée du 6 Août 13, B-4000 Liège, Belgium

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/content/journals/10.1163/156854009x454630
2010-01-01
2016-12-05

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