HOW WE LOST MOST OF THE ENDEMIC FISHES IN LAKE LANAO AND WHAT WE CAN DO TO SAVE THE REMAINING ONE
There used to be 18 species of endemic fishes (cyprinids) in the lake that contributed much to its fisheries production and the livelihoods of Maranao fisher folk dependent on it. In a recent field survey of Armi Torres, a Ph.D. student of the University of the Philippines Los Banos’ School of Environmental Science and Management, only one species of the endemic carp-like fishes was found and possibly two other species could still be existing.
In a market survey conducted by Domiciano Villaluz in 1963-64, the cyprinids of the Lake Lanao constituted 49.4% of the 991,120 kg of fishes caught followed by the white goby (Glossogobius giurus) and Mozambique tilapia (Tilapia mossambica) with 6.4% (127,750 kg), and 5.5% (109,500 kg), respectively. The tilapia (an exotic fish) was deliberately stocked in the lake for fisheries enhancement while the white goby (a native fish not found in the lake) is believed to have been inadvertently stocked with it in the early 1960s.
Prof. Pete Escudero of the Mindanao State University’s College of Fisheries in Marawi City found the fish landings of the fisher folk in the lake in 1976-77 to consist of 448,207 kg (55.7%) of cyprinids, 73,633 kg (9.1%) of Nile tilapia (Tilapia niloticus), and 90,315 kg (11.2%) of white goby.
Diese Geschichte stammt aus der July 2018-Ausgabe von Agriculture.
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Diese Geschichte stammt aus der July 2018-Ausgabe von Agriculture.
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