High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines
In spite of being a protected species in the Philippines, the Tridacna crocea or crocus clam, the smallest among eight known giant clam species in the country, is getting rare in most reef areas of Palawan. However, a high density of this species has recently been noted in Rita Island, Ulugan Bay. A total of 44 photos with known dimensions having a total area of 13.26 m2 suitable habitats with clams were analyzed for size structure and density of T. crocea. In total, 215 T. crocea were noted with 84.91 (±25.6) mm average shell length (±sd). The average density (±sd) was 16.22 (±15.75) individual (ind)∙m-2 but the clams had occurred up to 17 individuals in 0.28 m2 or 59.91 ind∙m-2. This high density of T. crocea could be due to suitable environment and the absence of exploitation within the vicinity of the island resort. The importance of other resorts in biodiversity conservation may be investigated.
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Format: | Journal Contribution biblioteca |
Language: | English |
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2020
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Subjects: | abundance, bivalves, giant clams, resort, shell length, ASFA_2015::F::Fisheries resources, ASFA_2015::P::Protected resources, |
Online Access: | http://hdl.handle.net/1834/17896 |
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dig-aquadocs-1834-178962021-05-19T07:02:04Z High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines Daño, Jemima Villanueva, Elmer Dolorosa, Roger abundance, bivalves, giant clams, resort, shell length ASFA_2015::F::Fisheries resources ASFA_2015::P::Protected resources In spite of being a protected species in the Philippines, the Tridacna crocea or crocus clam, the smallest among eight known giant clam species in the country, is getting rare in most reef areas of Palawan. However, a high density of this species has recently been noted in Rita Island, Ulugan Bay. A total of 44 photos with known dimensions having a total area of 13.26 m2 suitable habitats with clams were analyzed for size structure and density of T. crocea. In total, 215 T. crocea were noted with 84.91 (±25.6) mm average shell length (±sd). The average density (±sd) was 16.22 (±15.75) individual (ind)∙m-2 but the clams had occurred up to 17 individuals in 0.28 m2 or 59.91 ind∙m-2. This high density of T. crocea could be due to suitable environment and the absence of exploitation within the vicinity of the island resort. The importance of other resorts in biodiversity conservation may be investigated. Published Refereed 2021-04-08T08:55:07Z 2021-04-08T08:55:07Z 2020 Journal Contribution http://hdl.handle.net/1834/17896 en http://www.palawanscientist.org/research_journals/the_palawanscientist_vol12_july2020/11_Dano%20et%20al.%20Giant%20clams.pdf pp. 159-163 Palawan Philippines |
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abundance, bivalves, giant clams, resort, shell length ASFA_2015::F::Fisheries resources ASFA_2015::P::Protected resources abundance, bivalves, giant clams, resort, shell length ASFA_2015::F::Fisheries resources ASFA_2015::P::Protected resources |
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abundance, bivalves, giant clams, resort, shell length ASFA_2015::F::Fisheries resources ASFA_2015::P::Protected resources abundance, bivalves, giant clams, resort, shell length ASFA_2015::F::Fisheries resources ASFA_2015::P::Protected resources Daño, Jemima Villanueva, Elmer Dolorosa, Roger High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines |
description |
In spite of being a protected species in the Philippines, the Tridacna crocea or crocus clam, the smallest among eight known giant clam species in the country, is getting rare in most reef areas of Palawan. However, a high density of this species has recently been noted in Rita Island, Ulugan Bay. A total of 44 photos with known dimensions having a total area of 13.26 m2 suitable habitats with clams were analyzed for size structure and density of T. crocea. In total, 215 T. crocea were noted with 84.91 (±25.6) mm average shell length (±sd). The average density (±sd) was 16.22 (±15.75) individual (ind)∙m-2 but the clams had occurred up to 17 individuals in 0.28 m2 or 59.91 ind∙m-2. This high density of T. crocea could be due to suitable environment and the absence of exploitation within the vicinity of the island resort. The importance of other resorts in biodiversity conservation may be investigated. |
format |
Journal Contribution |
topic_facet |
abundance, bivalves, giant clams, resort, shell length ASFA_2015::F::Fisheries resources ASFA_2015::P::Protected resources |
author |
Daño, Jemima Villanueva, Elmer Dolorosa, Roger |
author_facet |
Daño, Jemima Villanueva, Elmer Dolorosa, Roger |
author_sort |
Daño, Jemima |
title |
High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines |
title_short |
High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines |
title_full |
High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines |
title_fullStr |
High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines |
title_full_unstemmed |
High density of Tridacna crocea in Rita Island, Puerto Princesa City, Palawan, Philippines |
title_sort |
high density of tridacna crocea in rita island, puerto princesa city, palawan, philippines |
publishDate |
2020 |
url |
http://hdl.handle.net/1834/17896 |
work_keys_str_mv |
AT danojemima highdensityoftridacnacroceainritaislandpuertoprincesacitypalawanphilippines AT villanuevaelmer highdensityoftridacnacroceainritaislandpuertoprincesacitypalawanphilippines AT dolorosaroger highdensityoftridacnacroceainritaislandpuertoprincesacitypalawanphilippines |
_version_ |
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