Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon
The tucuxi (Sotalia fluviatilis) is a small dolphin endemic to the Amazon River basin. Because the abundance and trends are currently unknown for the species, this study aimed to estimate its abundance in a lake system of the Central Amazon. A total of 10 two-day sampling periods were carried out fr...
| Autor principal: | Coimbra, Zulmira H. |
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| Outros Autores: | Assis, Carlos António, Silva, Vera Maria Ferreira da, Santos, Manuel E. dos |
| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Marine Mammal Science
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/17418 |
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oai:repositorio:1-17418 |
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dspace |
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oai:repositorio:1-17418 Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon Coimbra, Zulmira H. Assis, Carlos António Silva, Vera Maria Ferreira da Santos, Manuel E. dos Abundance Estimation Conservation Management Dolphin Endemic Species Lake Ecosystem Mark-recapture Method Photography Amazonas Brasil Mamiraua Sustainable Development Reserve Marajo Varzea Para [brazil] Sotalia Fluviatilis The tucuxi (Sotalia fluviatilis) is a small dolphin endemic to the Amazon River basin. Because the abundance and trends are currently unknown for the species, this study aimed to estimate its abundance in a lake system of the Central Amazon. A total of 10 two-day sampling periods were carried out from March to June of 2013 throughout a 13.5 km2 area in the Mamirauá Reserve. In the 104 encounters with the species, a minimum number of 389 dolphins were sighted and photographed, which allowed the positive identification of 49 individuals. Mark-recapture models were used to estimate an abundance of 119 individuals (95% CI = 105-150) (corrected for the proportion of identifiable individuals). This is the first estimation of S. fluviatilis abundance using mark-recapture analyses and, together with the photo-id catalog made available, provides a useful reference for future studies regarding tucuxi dolphins. © 2016 Society for Marine Mammalogy. 2020-06-15T21:42:28Z 2020-06-15T21:42:28Z 2016 Artigo https://repositorio.inpa.gov.br/handle/1/17418 10.1111/mms.12254 en Volume 32, Número 1, Pags. 241-251 Restrito Marine Mammal Science |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Abundance Estimation Conservation Management Dolphin Endemic Species Lake Ecosystem Mark-recapture Method Photography Amazonas Brasil Mamiraua Sustainable Development Reserve Marajo Varzea Para [brazil] Sotalia Fluviatilis |
| spellingShingle |
Abundance Estimation Conservation Management Dolphin Endemic Species Lake Ecosystem Mark-recapture Method Photography Amazonas Brasil Mamiraua Sustainable Development Reserve Marajo Varzea Para [brazil] Sotalia Fluviatilis Coimbra, Zulmira H. Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon |
| topic_facet |
Abundance Estimation Conservation Management Dolphin Endemic Species Lake Ecosystem Mark-recapture Method Photography Amazonas Brasil Mamiraua Sustainable Development Reserve Marajo Varzea Para [brazil] Sotalia Fluviatilis |
| description |
The tucuxi (Sotalia fluviatilis) is a small dolphin endemic to the Amazon River basin. Because the abundance and trends are currently unknown for the species, this study aimed to estimate its abundance in a lake system of the Central Amazon. A total of 10 two-day sampling periods were carried out from March to June of 2013 throughout a 13.5 km2 area in the Mamirauá Reserve. In the 104 encounters with the species, a minimum number of 389 dolphins were sighted and photographed, which allowed the positive identification of 49 individuals. Mark-recapture models were used to estimate an abundance of 119 individuals (95% CI = 105-150) (corrected for the proportion of identifiable individuals). This is the first estimation of S. fluviatilis abundance using mark-recapture analyses and, together with the photo-id catalog made available, provides a useful reference for future studies regarding tucuxi dolphins. © 2016 Society for Marine Mammalogy. |
| format |
Artigo |
| author |
Coimbra, Zulmira H. |
| author2 |
Assis, Carlos António Silva, Vera Maria Ferreira da Santos, Manuel E. dos |
| author2Str |
Assis, Carlos António Silva, Vera Maria Ferreira da Santos, Manuel E. dos |
| title |
Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon |
| title_short |
Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon |
| title_full |
Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon |
| title_fullStr |
Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon |
| title_full_unstemmed |
Mark-recapture abundance estimate of tucuxi dolphins (Sotalia fluviatilis) in a lake system of the Central Amazon |
| title_sort |
mark-recapture abundance estimate of tucuxi dolphins (sotalia fluviatilis) in a lake system of the central amazon |
| publisher |
Marine Mammal Science |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/17418 |
| _version_ |
1787143557032706048 |
| score |
11.755432 |