Published June 15, 2023 | Version v1
Journal article Open

First documentation of the capture and release of a manatee in the Rogolié River wetland (Ntoum, Gabon)

Authors/Creators

  • 1. Aquatic Species ONG, Libreville, Gabon

Contributors

  • 1. Centre d'Études Biologiques de Chizé (CEBC), Université LaRochelle, La Rochelle, France
  • 2. Laboratoire de Géomatique, de Recherche Appliquée et de Conseil (LAGRAC), Université Omar Bongo, Libreville, Gabon
  • 3. Aquatic Species ONG, Libreville, Gabon
  • 4. Institut de Recherche en Ecologie Tropicale (IRET), Libreville, Gabon

Description

A large number of marine mammals are seriously threatened by fisheries. Although the issue of by-catches in fisheries is a major threat to marine mammals, it has not yet been tackled in a concrete way in Gabon. Artisanal fishing accounts for 95% of fishing activity. Their impact on vulnerable megafauna can therefore be significant, either as bycatch or as target species. However, detailed information on the composition of fisheries catches is limited because of a lack of monitoring and reporting due to limited financial and logistical capacity. The aim of this paper is to document a rare phenomenon of the release of an African manatee (Trichechus senegalensis) caught in fishing nets at the mouth of the Rogolié River in the Gabon estuary.

published by the  Journal of Biodiversity and Environmental Sciences (JBES)

 

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https://innspub.net/first-documentation-of-the-capture-and-release-of-a-manatee-in-the-rogolie-river-wetland-ntoum-gabon/

Dates

Available
2023-06-15
article published

References

  • Auil N. 1998. Belize manatee recovery plan. UNDP/GEF Coastal Zone Management Project, Belize (BZE/92/G31). 67 pp
  • Beal WP. 1939. The manatee as a food animal. Nigerian. Field 8, 124-126.
  • Blancou L. 1960. Destruction and Protection of the fauna of French Equatorial and of French West Africa. African Wildlife 14, 241-244.
  • Cadenat J. 1957. Observations de cétacés, siréniens, cheloniens et sauriens en 1955-1956. Bulletin IFAN 19(A), 1358-1383.
  • Dodman T, Angola In, Dodman T, Diop MD, Sarr K. 2008a. Conservation strategy for the West African Manatee, UNEP, Nairobi, Kenya and Wetlands International Africa, Dakar, Senegal.
  • Domning DP, Marsh H, O'Shea TJ, Reynolds III JE. 2011. Ecology and Conservation of the Sirenia: Dugongs and Manatees. Cambridge University Press, Cambridge, United Kingdom, 536 pp. Series : Conservation Biology No. 18. ISBN-978-0-521-88828-8. Journal of Mammalogy 93(5), 1405‑1406. https://doi.org/10.1644/12-mamm-r-126.1
  • Grigionemm. 1996. Observations on the status and distribution of the West African manatee in Cameroon. African Journal of Ecology 34(2), 189‑195. https://doi.org/10.1111/j.1365-2028.1996.tb
  • Husar SL. 1978. Trichechus senegalensis, Mammalian Species 89, 1-3.
  • Keith L, Collins T. 2007. Report on West African Manatee (Trichechus senegalensis) survey activities in Gabon 2007, Wildlife Trust in association with Tim Collins, WCS-Marine Program p. 14
  • Keith-Diagne L. 2015. Trichechus senegalensis. The IUCN Red List of Threatened Species 2015: e.T22104A97168578. http://dx.doi.org/10.2305/IU CN. UK.2015-4.RLTS.T22104A81904980.en
  • Marsh H, Lefebvre LW. 1994. Sirenian status and conservation efforts. Aquatic Mammals 20, 155-170
  • Mbina C. 2001. Evaluation and statut of manatees (Trichechus senegalensis) of Ogooue Bassin in Gabon in Sirenews, 9 p. http://www.sirenian.org/mbinapr elimreport.pdf
  • Nishiwaki M, Yamaguchi M, Shokita S, Uchida S, Kataoka T. 1982. Recent survey on the distribution of the African manatee. Scientific Reports of the Whales Research Institute 34, 137-147.
  • Nkollo CA. 2016. Étude des interactions potentielles entre la pêche et le lamantin (Trichechus Senegalensis) dans la Lagune Ndougou (Gabon)-Période de Décembre 2015- Avril 2016, 2016, Rapport Technique WWF EFN.
  • Nkollo CA. 2022. Distribution et Conservation du lamantin africain (Trichechus senegalensis) dans les sites Ramsar de Petit Loango et de Setté Cama (Gabon), Thèse de doctorat Thèse de doctorat en Géographie option Biogéographie, Université Omar Bongo 274p.
  • Okanga-Guay M, Ondo Assoumou E, Akendengue Aken I, Mpie Simba C, Mombo JB, Obiang Ebanega M, Mbadinga M, Rogombe L, Mouketou-Tarazewicz D. 2019. Suivi des changements spatiaux et environnementaux dans les mangroves de la province de l'Estuaire du Gabon, Actes de la Conférence: Des images satellites pour la gestion durable des territoires en Afrique, Mertens, B. Orekan, V. Eds, Mars, Cotonou, Bénin pp. 313-339.
  • Okanga-Guay M, Rogombe LG, Ondo Assoumou E, Lembe Bekale A, Akendengue Aken I, Mombo JB. 2022. Les moteurs de la déforestation des mangroves urbaines du Grand Libreville (Gabon), VertigO- la revue électronique en sciences de l'environnement [En ligne], Volume 22 numéro
  • Perrin WF. 2001. Conservation Status of the West African Manatee Sirenews (36): 6-11 Conservation Status of the West African Manatee. Sirenews 36, 6-11
  • Powell JA. 1996. The distribution and biology of the West African manatee (Trichechus senegalensis Link, 1795). Nairobi, Kenya: United Nations Environmental Program, Regional Seas Program, Ocean and Coastal Areas.
  • Robinson PT. 1971. Wildlife Trends in Liberia and Sierra Leone. Oryx 11, 117-122.