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Cetaceans of the Congo River Estuary, DRC: the first inventory, aided by citizen science

عنوان مقاله: Cetaceans of the Congo River Estuary, DRC: the first inventory, aided by citizen science
شناسه ملی مقاله: JR_JAD-5-3_004
منتشر شده در در سال 1402
مشخصات نویسندگان مقاله:

Samuel Mbungu Ndamba - l'Institut Supérieur de Navigation et de Pêche (ISNP), Muanda, Kongo Central, Democratic Republic of the Congo (DRC); Centre d’Initiatives pour la Conservation de la Biodiversité (CICOBIO), Avenue Lelo Luemba N°۱۰, Q. Ocean, Muanda, DRC
Albert Maba Ngaka - Service National de l'Aquaculture à Nsiamfumu, DRC
Serge Nzinga - Équipe d’observateurs des Cétacés, CICOBIO, Avenue Lelo Luemba N°۱۰, Q. Ocean, Muanda, DRC
Jérémie Sambu Banganga - Agence de Pêche Artisanal (Artisanal Fisheries Agency), Nsiamfumu, DRC
Hong-Yu Lai - Eco Institute, Favor Industrial Centre, ۲-۶ Kin Hong Street, Kwai Chung, N.T., Hong Kong
Koen Van Waerebeek - Peruvian Centre for Cetacean Research/Centro Peruano de Estudios Cetológicos (CEPEC), Museo de Delfines, Pucusana, Lima-۲۰, Peru; Conservation and Research of West African Aquatic Mammals (COREWAM), c/o Faculty of Environment and Conservation, University

خلاصه مقاله:
The first inventory of cetacean diversity in coastal waters of the Congo River Estuary, Democratic Republic of the Congo, was obtained between May ۲۰۲۱ and April ۲۰۲۲, through incidental sightings (n=۱۷) reported mainly by artisanal fishers and direct observations of bycatches at fish landing sites. Confirmed records include five odontocete species: four Delphinidae: Delphinus capensis Gray, Pseudorca crassidens (Owen), Stenella frontalis (G. Cuvier), Tursiops truncatus (Montagu); one Kogiidae: Kogia sima (Owen). There was one mysticete, Balaenopteridae: Megaptera novaeangliae (Borowski). Of six small cetaceans documented landed for use as aquatic bushmeat, four (۶۶.۷%) were T. truncatus. Megaptera novaeangliae was the most frequently sighted cetacean (۴۷.۱% of reported sightings), registered between ۱۷ May–۳ September ۲۰۲۱, with a seasonality (austral winter) consistent with the SE Atlantic breeding stock (‘B-Stock’). All information was collected by locals, the at-sea sightings by trained fishermen in a citizen science framework. The main benefits included a welcome marine conservation educational component, and low-cost, opportunistic fishing boat use. Shortfalls comprised a deficiency in scientific detail and effort quantification, occasional data loss and lack of biological sampling. However, in a remote coastal region like the DRC’s Congo River estuary, where marine mammals have never before been studied, local citizen science methodology proved effective and, after adjustments, should be scaled-up.

کلمات کلیدی:
: Bycatch, Central Africa, Delphinidae, Eastern Tropical Atlantic, humpback whales, Kogia sima, Marine (aquatic) bushmeat, whale shark, citizen science

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1821517/