Bivalves and gastropods of Tubbataha Reefs Natural Park, Philippines

Dolorosa, Roger G.; Picardal, Rafael M.; Conales, Segundo F.

doi:10.15560/11.1.1506

Cited by 13 publications

(7 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Of the eight giant clam species that are known to occur in the Philippines and Palawan in particular(Ecube et al 2019;Dolorosa et al 2015), only three species were noted in this study, suggesting a decline in the population of other species in many areas. A few living individuals of true giant clam Tridacna gigas (Linnaeus 1758) could be found even in shallow waters in well-managed areas (Mecha and Dolorosa 2020).…”

mentioning

confidence: 49%

“…The economic uses of benthic macroinvertebrates from the West Sulu Sea varied across localities. A majority of sea cucumbers, mollusks, and lobsters are consumed locally as food, whereas few are collected for jewelry or souvenir items (Gonzales and Taniguchi 1995;Floren 2003;Jontila et al 2014;Dolorosa et al 2015) 2004). The unregulated heavy collection of baby and gravid lobsters from the wild proliferates in the country resulted in their overexploitation (Gonzales and Taniguchi 1995; Juinio-Meñez and Gotanco 2004).…”

Section: Economic Usesmentioning

confidence: 99%

See 1 more Smart Citation

Economically Important Benthic Macroinvertebrates in the Reefs of West Sulu Sea, Palawan, Philippines

Balisco¹,

Gonzales²,

Dolorosa³

2022

Philipp J Sci

View full text Add to dashboard Cite

Benthic macroinvertebrates are essential components of the marine ecosystem and a source of food and livelihood in many coastal communities. However, a lack of knowledge about their status has resulted in their overexploitation in many areas where they are openly harvested. In this paper, we assessed the species composition, population density, uses, and conservation status of economically important benthic macroinvertebrates in the coral reefs of the West Sulu Sea, Palawan, Philippines. A total of 100 transects from six sites (3–10-m depth) covering a reef area of 25,000 m2 were assessed using scuba diving. There were 15 species belonging to 11 families found in the surveyed sites, with the Crocus giant clam Tridacna crocea Lamarck 1819 encountered in all sites. The mean population density of each species ranged between 0.8–306.4 individuals ha–1. Based on the IUCN Red List, most of the species encountered have “Least Concern” and “Not Evaluated status,” whereas two species are listed as “Lower Risk/ Conservation Dependent.” Mostly, these organisms are harvested as a source of food, souvenirs, decorations, and jewelry. The absence of some high-value and threatened species may indicate over-harvesting of these species. The results of this study can be used as a basis for formulating a long-term management plan for these benthic macroinvertebrates and their coastal habitats.

show abstract

mentioning

confidence: 49%

Section: Economic Usesmentioning

confidence: 99%

Economically Important Benthic Macroinvertebrates in the Reefs of West Sulu Sea, Palawan, Philippines

Balisco¹,

Gonzales²,

Dolorosa³

2022

Philipp J Sci

View full text Add to dashboard Cite

show abstract

“…Briefly, Masagca et al [10] discovered 27 species of gastropods and 30 species of bivalves. There were 89 gastropods and 19 bivalve species recorded in Binunsalian and Turtle Bays, Palawan [11], 50 gastropods and 15 bivalves recorded in Iwahig River-Estuary-Palawan [12], and 69 gastropods and nine bivalves recorded from Kalayaan Islands [9]. There were 43 gastropods and 29 species of bivalves recorded in Ajuy, Iloilo, Western Visayas [20].…”

Section: Species Richness Of Marine Macro Molluscan Bivalves and Gast...mentioning

confidence: 99%

“…Most studies on mollusc species in the Philippines were based on the collections of mollusc species by many foreign researchers, such as Hugh Cummings' collections from 1836 to 1840 [9]. There have been a few studies focusing on the locality of marine macro molluscs, such as the studies conducted on Catanduanes Island by Masagca et al [10], in Binunsalian and Turtle Bays by Picardal and Dolorossa [11], in Iwahig River-Estuary by Dolorossa and Dangan-galon [12], in Tubbataha Reefs Natural Marine Park conducted by Dolorossa et al [13], and in Palawan, and Kalayaan Island Group (KIG) conducted by Batomalaque et al [9]. In addition to these, there are also a few studies conducted in part of Mindanao, such as the survey conducted in Hadji Panglima Tahil, Province of Sulu [14], in Alabel and Maasim, Sarangani Province [15], and in Padada, Davao del Sur [16].…”

Section: Introductionmentioning

confidence: 99%

Diversity of marine macro molluscan bivalves and gastropods in the intertidal areas of Barangay Paniman, Caramoan, Camarines Sur, Philippines

Caril,

Vergara,

Santos

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

There have been very few studies on mollusk diversity in remote areas of the Philippines. The coastal areas of Caramoan, Camarines Sur, are ideal for studying marine molluscs because they have been discovered to be abundant, diverse, and essential to the locals’ livelihood. However, due to the remoteness of the mentioned area, this lack of information remains scientifically lacking. Thus, this study aimed to determine the diversity of marine macro-molluscan bivalves and gastropods in the intertidal areas of Barangay Paniman, Caramoan, Camarines Sur, Philippines. Purposive sampling and transect methods assessed the species composition, abundance, and occurrence of marine macro bivalves and gastropods. The Shannon-Wiener index was used to determine the area’s diversity. A total of 557 individual molluscs were sampled and classified, obtaining 43 species of bivalves from 32 genera and 18 families and 47 species of gastropods from 34 genera and 20 families. The family Veneridae had the highest among the bivalves, and the family Strombidae had the highest species richness among the gastropods. This study provided baseline information on the status of marine macro molluscan bivalves and gastropods in the intertidal area of Barangay Paniman, Caramoan, Camarines Sur, Philippines. As a result, this will provide solid empirical evidence for conservation and sustainability plans.

show abstract

“…Additional information on identification and ecology was derived from Apte (1998), Zuschin and Oliver (2003), Oliver (1992), ZSI, State fauna Series, and NMiTA 1 . The species occurrence of Indo-Malayan Archipelago (south-east Asian biodiversity hotspot) was collected from published literature (Dijkstra, 1991;Dolorosa et al, 2015;Lutaenko, 2016) and compared with the data along the east coast of India from the present study and literature-based occurrence compiled in Sarkar et al (2019).…”

Section: Field Sampling and Identificationmentioning

confidence: 99%

The Distribution Pattern of Marine Bivalve Death Assemblage From the Western Margin of Bay of Bengal and Its Oceanographic Determinants

2021

View full text Add to dashboard Cite

The global pattern of shallow marine biodiversity is constructed primarily using the data from extra-tropical sites. A severe knowledge gap in the shallow benthic diversity exists for the tropical Indian Ocean, especially along the coastline of peninsular India. Latitudinal biodiversity gradient (LBG)—a poleward decrease in diversity, even though accepted as a pervasive global pattern, often differs from regional trends. Although several oceanographic variables are known to influence regional patterns, their relative effect in shaping the shallow benthic community in tropical seas remains unclear. The east coast of India bordering the Bay of Bengal (BoB) presents a 2,500 km stretch (8–22°N) of tropical coastline with a spatial variation in oceanographic parameters including freshwater mixing, primary productivity, temperature, and shelf area. Here, we documented the marine bivalve distribution using spatially-temporally averaged beach samples and evaluated their relationship with the oceanographic variables. Our data reveal the existence of a highly diverse fauna, comparable to other tropical shallow marine sites. Overall species composition reflects a typical assemblage of the Indian Ocean, dominated by Veneridae but shows an uncharacteristically low proportion of Tellinidae and Lucinidae. The latitudinal variation in diversity shows a mid-latitude drop at around 14°N—a pattern inconsistent with the prediction of latitudinal biodiversity gradient (LBG). The functional groups are dominated by infauna (65%), unattached groups (69%), and suspension feeders (87%). There is only a slight difference in species composition between southern and the northern sites pointing to a predominantly continuous circulation and considerable mixing within the BoB. Productivity range, shelf area, and salinity emerge as best predictors of the species richness. All environmental variables together explain the species composition across the latitudinal bins satisfactorily. The species composition of the east coast shows no distinct nature in comparison to the Indo-Malayan biodiversity hotspot; the proximity to this hotspot and biological exchange with it may have contributed to the high diversity of the east coast fauna. Our study highlights the complex interplay between multiple oceanographic variables in determining the distribution and diversity of tropical shallow marine benthos at a regional scale generating biodiversity patterns that are at odds with global trends such as LBG.

show abstract

Bivalves and gastropods of Tubbataha Reefs Natural Park, Philippines

Cited by 13 publications

References 1 publication

Economically Important Benthic Macroinvertebrates in the Reefs of West Sulu Sea, Palawan, Philippines

Economically Important Benthic Macroinvertebrates in the Reefs of West Sulu Sea, Palawan, Philippines

Diversity of marine macro molluscan bivalves and gastropods in the intertidal areas of Barangay Paniman, Caramoan, Camarines Sur, Philippines

The Distribution Pattern of Marine Bivalve Death Assemblage From the Western Margin of Bay of Bengal and Its Oceanographic Determinants

Contact Info

Product

Resources

About