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Lake
Danao (Imelda)
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Location:
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11°04'N', 124°42'E'; 10 km northeast of Ormoc City, Leyte Province. |
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Area:
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196.7 ha. |
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Altitude:
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640m. |
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Biogeographical
Province:
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4.26.12. |
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Wetland
type:
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14. |
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Description
of site:
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A small freshwater lake and associated marshes on Mount Danao in the highlands of north-central Leyte. The lake is fed by local run-off; it has a maximum depth of l82m, and the bottom is comprised of sandy, silty and clay sediments. The pH values range from 8.0 to 8.5, and the dissolved oxygen values from 7.0 to 8.0 p.p.m. |
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Climatic
conditions:
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Humid tropical climate with the rainfall more or less evenly distributed throughout the year (Type IV). |
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Principal
vegetation:
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The filamentous alga Cladophora sp is common in the lake; dominant macrophytes include Panicum hemitomon and Hydrilla sp. Humid tropical forest, patches of Imperata cylindrica, rice paddies and fields of sugar cane in surrounding areas. |
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Land
tenure:
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The lake is owned by the Local Authority; a part of the surrounding area is owned by the Local Authority and the remainder is under private ownership. |
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Conservation
measures taken:
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The lake is included in the Lake Danao National Park (1,500 ha), established in 1965 and administered by the Bureau of Forest Development. The lake is also within a Philippine National Oil Company Reservation. |
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Conservation
measures proposed:
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Land
use:
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Sport fishing, boating, swimming and other recreational activities; cultivation of rice and sugar cane in surrounding areas. |
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Possible
changes in land use:
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| Disturbances and threats: | The uncontrolled cutting of timber by slash-and-burn farmers poses a threat to the entire region. |
| Economic and social values: | The lake provides many opportunities for outdoor recreation, and supports a small sport fishery. |
| Fauna: | The rich fish fauna includes Chanos chanos, Clarias sp, Tilapia sp, Cyprinus carpio and Glossogobius giurus. The lake supports a wide variety of waterfowl, notably species of grebes (Podicipedidae), herons and egrets (Ardeidae) and ducks (Anatidae). The forests in the vicinity are important for a number of species of birds endemic to the Philippines. |
| Special floral values: | |
| Research and facilities: | Magsalay carried out a preliminary faunal survey in June 1986. |
| References: | |
| Criteria for inclusion: | 1b. |
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Source:
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Haribon Foundation and Perla M. Magsalay. |