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Lake
Bato
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Location:
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13°20'N, 123°22'E; at Bato Town, approximately 9 km southwest of Iriga City, Camarines Sur Province, southeastern Luzon. |
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Area:
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2,810 ha. |
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Altitude:
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10m. |
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Biogeographical
Province:
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4.26.12. |
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Wetland
type:
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14 & 21. |
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Description
of site:
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A freshwater lake with extensive marshes and some swamp forest, fed by local run-off and several small streams. The lake drains into a tributary of the Bicol River which enters the sea near Naga City. The average depth is 8m, and the bottom is muddy clay. The pH value is 6.1, the average dissolved oxygen 10 p.p.m., and the total hardness (SBY) 2.4. |
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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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Approximately 20 species of larger aquatic plants have been recorded, including Ipomoea reptans, Hydrilla verticillata and Eichhornia crassipes. |
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Land
tenure:
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No information. |
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Conservation
measures taken:
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None. |
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Conservation
measures proposed:
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Land
use:
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Fishing, especially for carp Cyprinus carpio and the tilapias Tilapia nilotica, T. mossambica. Minor fisheries include freshwater shrimps Macrobrachium sp, catfish Clarias sp and climbing perch Anabas testudineus. |
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Possible
changes in land use:
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| Disturbances and threats: | No information. |
| Economic and social values: | The lake supports an important fishery. |
| Fauna: | The lake has a rich fish fauna including the endemic species Mystichthys luzonensis. |
| Special floral values: | None known. |
| Research and facilities: | Studies of the fisheries have been carried out by the Bicol River Basin Development Program in San Jose, Pill. |
| References: | Bureau of Fisheries and Aquatic Resources (1984-85); Rinconada Integrated Development Area Project Feasibility Study (1979). |
| Criteria for inclusion: | 1b, 2d. |
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Source:
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Haribon Foundation. |