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  • Conservation and Ecological Management of Philippine Lakes in Relation to Fisheries and Aquaculture
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  • Conservation and Ecological Management of Philippine Lakes in Relation to Fisheries and Aquaculture
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Bathymetry and hydrobiology of Lake Mahagnao, Leyte

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cemplrfa_p041-047.pdf (3.284Mb) Open Access
Downloads: 4,634
Date
2001
Author
Francisco, Ruben A.
Pundavela, Menchie R.
Granali, Justerie M.
Tumabiene, Lea A.
Alpino, Julius P.
Elmido, Visitacion V.
Page views
6,779
Subject
bathymetric profiles ASFA
bathymetric surveys ASFA
ecology ASFA
eutrophication ASFA
freshwater lakes ASFA
hydrobiology ASFA
phytoplankton ASFA
plankton surveys ASFA
water depth ASFA
Philippines, Leyte I., Mahagnao L.
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Abstract
Lake Mahagnao in Burauen, Leyte (10° 52.15' N and 124° 51.32' E) lies 26 m above sea level. It is surrounded by a mountain range that includes a dormant twin volcano. A bathymetric survey established 122 sampling stations using Global Positioning System. The stations formed transect lines across the lake. A bathymetric map of Lake Mahagnao was generated with the use of the SURFER software. Lake Mahagnao has a shoreline of 15,590 m and surface area of 15.75 ha. The deepest portion of the lake is 18.75 m. The mean pH of the water is 6.58; water surface temperature, 27oC; and water visibility, 1.64 m. Eighty-one species were identified as primary producers. Station 5, the deepest portion of the lake, had the highest phytoplankton density at 4,716 cells/ml and Station 2 had only 634 cells/ml. Cyanobacteria were the most abundant in all the sampling stations.
URI
http://hdl.handle.net/10862/823
Suggested Citation
Francisco, R. A., Pundavela, M. R., Granali, J. M., Tumabiene, L. A., Alpino, J. P., & Elmido, V. V. (2001). Bathymetry and hydrobiology of Lake Mahagnao, Leyte. In C. B. Santiago, M. L. Cuvin-Aralar, & Z. U. Basiao (Eds.), Conservation and Ecological Management of Philippine Lakes in Relation to Fisheries and Aquaculture (pp. 41-47). Tigbauan, Iloilo, Philippines: Aquaculture Department, Southeast Asian Fisheries Development Center; Los Baños, Laguna, Philippines: Philippine Council for Aquatic and Marine Research and Development (PCAMRD), Department of Science and Technology; Quezon City, Philippines: Bureau of Fisheries and Aquatic Resources (BFAR), Department of Agriculture, Quezon City, Philippines.
Type
Conference paper
ISBN
9718511539
Collections
  • Conservation and Ecological Management of Philippine Lakes in Relation to Fisheries and Aquaculture [27]


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