Daniel Edison Husana

Daniel Edison Husana
University of the Philippines Los Baños | UPLB · Institute of Biological Sciences

PhD in Natural Environmental Studies

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16
Publications
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83
Citations

Publications

Publications (16)
Article
Full-text available
Barbodes pyrpholeos, new species, is the first cave-dwelling cyprinid fish reported from the Philippines. It is described from karst systems in Mindanao. It is distinguished from other congeners by having a poorly pigmented body with reddish fins in combination with a smooth dorsal-fin spine without serrations, and several additional morphological...
Article
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Abstract A new species of cave-obligate freshwater crab of the genus Sundathelphusa Bott, 1969 (Gecarcinucidae) from Agusan del Sur, Philippines is described. The new species is morphologically close to S. hades Takeda and Ng, 2001 but distinctly differs in the shape of carapace and gonopods. Although the new species is found close to the type loca...
Article
The taxonomy of the Sundathelphusa philippina (von Martens, 1868) species group (Brachyura; Gecarcinucidae) from the Philippines is revised, and two new species are described. Sundathelphusa philippina sensu stricto is here restricted to the Bicol Peninsula of southern Luzon, and to the islands of Samar and Leyte. It is one of the largest freshwate...
Article
A new species of the eyeless goby genus Caecogobius is described from a cave system on Mindanao Island, the Philippines. Caecogobius personatus sp. nov. is the second cave-obligate fish ever discovered from the Philippine archipelago. The first species, Caecogobius cryptophthalmus Berti and Ercolini 1991 was recorded from Samar Island, an adjacent...
Article
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We determined the stable carbon and nitrogen isotope compositions of foot tissue, conchiolin opercula, and the shell organic matrix from the marine gastropods Cernina fluctuata (Ampullinidae) and Polinices mammilla (Naticidae) collected in March 2006 from a lower tidal flat on Cuyo Island, the Philippines, together with the seagrass Enhalus acoroid...
Article
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Two new, long-legged species of the freshwater crab genus Sundathelphusa Bott, 1969, are described from the island of Negros in the central Philippines. These are Sundathelphusa orsoni, new species, from the forested foothills of Mount Kanlaon in the northern region of the island, and S. niwangtiil, new species, a troglophilic species from the hill...
Article
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Two cave species of Sundathelphusa are described from a karst area in southern Luzon, Philippines. Both species have elongated ambulatory legs but the eyes and carapace pigmentation are well developed, indicating they are not troglobites. Sundathelphusa danae sp. nov. is superficially more similar to S. longipes (Balss, 1937) than to S. holthuisi N...
Article
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Groundwater in karst regions in the Philippines is inhabited by a diverse yet unique aquatic fauna. While this habitat is threatened by anthropogenic disturbances, basic physicochemical information is lacking. Here, we provide the first report of karst groundwater quality based on the characterization and assessment of samples collected from caves....
Article
A new species of potamid freshwater crab Ovitamon Ng & Takeda, 1992, is described from Panay Island, Philippines. Ovitamon agmamba, new species, is the largest known member of the genus, and while its overall appearance is similar to O. tomaculum Ng & Takeda, 1992, also described from Panay, its male first gonopod morphology is closer to that of O....
Article
Full-text available
A new species of hymenosomatid crab of the genus Elamena H. Milne Edwards, 1837, is described from the island of Samal, in the Davao Gulf, Mindanao, southern Philippines. Elamena samalensis sp. nov. belongs to the Elamena truncata species-group and is most similar to E. simplidenta Ng & Chuang, 1996, in the general form of the carapace and in the p...
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Panglao is a small island in the central part of the Philippines and well-known for its world-class beaches and coral reefs. These attract millions of tourists each year thus providing business opportunities and employment, a significant source of revenue for the local economy. Moreover, this island lies in a region with high biodiversity. However,...
Article
A new genus and species of brachyuran crab, Samarplax principe (family Hymenosomatidae) is described from an anchialine cave in Samar Island, Philippines. This cavernicolous species lacks rostrum and has degenerated eyes, possesses two small spines at the lateral margin of the carapace, has a proportionally shorter projected merus of the third maxi...
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Full-text available
Availability of resources influences the opportunistic characters of animals to migrate and colonize a specific habitat while the organism's geographic isolation causes speciation and diversification. Stable isotope signatures (δ13C and δ15N) elucidate the nutrient source of cavernicolous animals. Mitochondrial DNA sequences of the large subunit rR...
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Full-text available
A new cavernicolous crab of the genus Karstarma is described from anchialine caves in Samal and Boracay islands, Philippines. The new species, K. philippinarum, is morphologically most similar to K. ultrapes (Ng, Guinot & Illife, 1994) from the Solomon Islands, but differs in having shorter ambulatory legs and an obtuse external orbital angle. A su...
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Two new troglobitic species of the freshwater crab genus Sundathelphusa (Parathelphusidae), S. waray, n. sp., and S. lobo, n. sp., are described from two caves in Samar, Philippines. This discovery brings the number of cavernicolous species of Sundathelphusa in the Philippines to nine. It is the first record of freshwater and true cavernicolous cra...
Article
Full-text available
The troglobitic freshwater shrimp genus Edoneus Holthuis, 1978, is revised on the basis of a fresh collection from several caves in Luzon, the Philippines, as well as previously studied collections deposited at the National Museum of Natural History, Leiden. The revised genus is characterized by the absence of an arthrobranch on the fi rst pereiopo...

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Project
Our goal is gathering all published information in as many languages as possible on in order to produce an open access database that facilitate future research in subterranean aquatic environments. Data will be gather for all groups of animals. The geographical scope is global, and it covers all types of so-called subterranean habitats ranging from freshwater and marine caves to hyporheic and interstitial environments. The project is part of the MSCA-IF-2016 "ANCAVE: Anchialine caves to understand evolutionary processes" granted to Alejandro Martinez and hosted by Diego Fontaneto (IRSA-CNR, Verbania).