Electrofishing eel, salmon and trout: impact of waveform and frequency on capture-per-unit-effort and spinal damage
| العنوان: | Electrofishing eel, salmon and trout: impact of waveform and frequency on capture-per-unit-effort and spinal damage |
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| المؤلفون: | Gaétan Pottier, Frédéric Marchand, Marie Nevoux |
| المساهمون: | HYDRECO, Laboratoire Environnement de Petit Saut, Écologie et santé des écosystèmes (ESE), AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Unité Expérimentale d'Ecologie et d'Ecotoxicologie Aquatique - U3E (Rennes, France) (U3E ), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), pôle OFB-INRAE- Agrocampus Ouest-UPPA pour la gestion des migrateurs amphihalins dans leur environnement, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Office français de la biodiversité (OFB) |
| المصدر: | Knowledge and Management of Aquatic Ecosystems Knowledge and Management of Aquatic Ecosystems, EDP sciences/ONEMA, 2020, ⟨10.1051/kmae/2020034⟩ Knowledge and Management of Aquatic Ecosystems, Vol 0, Iss 421, p 42 (2020) |
| بيانات النشر: | HAL CCSD, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | 0106 biological sciences, spinal damage, Management, Monitoring, Policy and Law, Aquatic Science, Biology, 010603 evolutionary biology, 01 natural sciences, lcsh:Aquaculture. Fisheries. Angling, Brown trout, Waveform, 14. Life underwater, Nature and Landscape Conservation, Water Science and Technology, Electrofishing, lcsh:SH1-691, current frequency, Ecology, 010604 marine biology & hydrobiology, catch-per-unit-effort, Catch per unit effort, biology.organism_classification, Spinal column, Fishery, Trout, waveform, [SDE]Environmental Sciences, Fish |
| الوصف: | Performing fish survey protocols with different electrofishing equipment and settings can lead to difficulties in comparing the data obtained. In this study, we captured two fish taxa (i.e. the European eel and salmonids: Atlantic salmon and brown trout) in the field using four models of electrofishers that provided different waveforms: direct current (DC), pulsed direct current (PDC) and pulsed exponential current (PEC). This study aimed to assess effects of using different waveforms and frequencies, while considering environmental variables, on i) attraction, represented by occurrence and catch-per-unit-effort (CPUE) of fishes, and ii) spinal damage, based on ultrasound of the spinal column. For all species, DC and PDC yielded equivalent occurrences and CPUEs, regardless of the frequency. In contrast, PEC induced a significant decrease in occurrences and CPUEs of both eels and salmonids. The percentage of injured fishes increased as the frequency or length of the salmonids increased while waveform had no effect. Ultrasound was determined to be a good non-invasive method to detect injuries in fishes. |
| اللغة: | English |
| تدمد: | 1961-9502 |
| DOI: | 10.1051/kmae/2020034⟩ |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2a1da82d36e7f2c6885ba04a76683ccf https://hal.inrae.fr/hal-03028904 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....2a1da82d36e7f2c6885ba04a76683ccf |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19619502 |
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| DOI: | 10.1051/kmae/2020034⟩ |