Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines
In 2011, a review of 33 photographs of mantas taken at the Tubbataha Reefs Natural Park (TRNP), Cagayancillo, Palawan, Philippines revealed that most of the mantas photographed were clearly reef manta rays (Manta alfredi) with only one photograph of Manta birostris. Previously identified in surveys within the park as oceanic manta ray M. birostris, the presence of M. alfredi has never been established until now. Using various parameters, the pictures in the Tubbataha Management Office (TMO) database were reviewed and noted. The identification of M. alfredi was more consistently based on the presence of black marks located posterolateral to the last gill slits and between the rows of gill slits. The identification of the species was further validated by experts after viewing three photographs from the said database. This represents a new elasmobranch species record for the TRNP and, technically, for the Philippines as well. Furthermore, the confirmed presence of both globally significant species of manta rays should have a strong bearing on the conservation policies of the park as well as that of the country. Further research on population dynamics, structure and abundance is recommended. Contributing to global efforts to generate better understanding of the species through partnership with international organizations is also recommended.
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Format: | Journal Contribution biblioteca |
Language: | English |
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2015-07-01
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Subjects: | ASFA_2015::M::Marine resources, ASFA_2015::F::Fisheries resources, |
Online Access: | http://hdl.handle.net/1834/17925 |
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dig-aquadocs-1834-179252021-05-19T07:02:00Z Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines Aquino, Ma. Theresa R Songco, Angelique M Alarcon, Rowell C ASFA_2015::M::Marine resources ASFA_2015::F::Fisheries resources In 2011, a review of 33 photographs of mantas taken at the Tubbataha Reefs Natural Park (TRNP), Cagayancillo, Palawan, Philippines revealed that most of the mantas photographed were clearly reef manta rays (Manta alfredi) with only one photograph of Manta birostris. Previously identified in surveys within the park as oceanic manta ray M. birostris, the presence of M. alfredi has never been established until now. Using various parameters, the pictures in the Tubbataha Management Office (TMO) database were reviewed and noted. The identification of M. alfredi was more consistently based on the presence of black marks located posterolateral to the last gill slits and between the rows of gill slits. The identification of the species was further validated by experts after viewing three photographs from the said database. This represents a new elasmobranch species record for the TRNP and, technically, for the Philippines as well. Furthermore, the confirmed presence of both globally significant species of manta rays should have a strong bearing on the conservation policies of the park as well as that of the country. Further research on population dynamics, structure and abundance is recommended. Contributing to global efforts to generate better understanding of the species through partnership with international organizations is also recommended. Published Refereed 2021-04-19T09:01:43Z 2021-04-19T09:01:43Z 2015-07-01 Journal Contribution http://hdl.handle.net/1834/17925 en https://drive.google.com/file/d/0BzOzTYf_v1niN3luMDYwTWk5OWtWOE5pQnN1STMtdncwa2U0/view 1-11 Palawan, Philippines |
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ASFA_2015::M::Marine resources ASFA_2015::F::Fisheries resources ASFA_2015::M::Marine resources ASFA_2015::F::Fisheries resources Aquino, Ma. Theresa R Songco, Angelique M Alarcon, Rowell C Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines |
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In 2011, a review of 33 photographs of mantas taken at the Tubbataha Reefs Natural Park (TRNP), Cagayancillo, Palawan, Philippines revealed that most of the mantas photographed were clearly reef manta rays (Manta alfredi) with only one photograph of Manta birostris. Previously identified in surveys within the park as oceanic manta ray M. birostris, the presence of M. alfredi has never been established until now. Using various parameters, the pictures in the Tubbataha Management Office (TMO) database were reviewed and noted. The identification of M. alfredi was more consistently based on the presence of black marks located posterolateral to the last gill slits and between the rows of gill slits. The identification of the species was further validated by experts after viewing three photographs from the said database. This represents a new elasmobranch species record for the TRNP and, technically, for the Philippines as well. Furthermore, the confirmed presence of both globally significant species of manta rays should have a strong bearing on the conservation policies of the park as well as that of the country. Further research on population dynamics, structure and abundance is recommended. Contributing to global efforts to generate better understanding of the species through partnership with international organizations is also recommended. |
format |
Journal Contribution |
topic_facet |
ASFA_2015::M::Marine resources ASFA_2015::F::Fisheries resources |
author |
Aquino, Ma. Theresa R Songco, Angelique M Alarcon, Rowell C |
author_facet |
Aquino, Ma. Theresa R Songco, Angelique M Alarcon, Rowell C |
author_sort |
Aquino, Ma. Theresa R |
title |
Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines |
title_short |
Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines |
title_full |
Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines |
title_fullStr |
Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines |
title_full_unstemmed |
Notes on the presence of Manta alfredi in the Tubbataha Reefs Natural Park, Cagayancillo, Palawan, Philippines |
title_sort |
notes on the presence of manta alfredi in the tubbataha reefs natural park, cagayancillo, palawan, philippines |
publishDate |
2015-07-01 |
url |
http://hdl.handle.net/1834/17925 |
work_keys_str_mv |
AT aquinomatheresar notesonthepresenceofmantaalfrediinthetubbatahareefsnaturalparkcagayancillopalawanphilippines AT songcoangeliquem notesonthepresenceofmantaalfrediinthetubbatahareefsnaturalparkcagayancillopalawanphilippines AT alarconrowellc notesonthepresenceofmantaalfrediinthetubbatahareefsnaturalparkcagayancillopalawanphilippines |
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1756077024671170560 |