Search
Now showing items 11-20 of 29
Domestic effluents and pollution in Imbang River, Negros Occidental
(Bureau of Agricultural Research, Department of Agriculture, 2007)
Domestic effluents, or waste waters from human settlements, were sampled from eight stations along Imbang River in Negros Occidental from July 1993 to February 1995. Three types of domestic waste waters were produced by ...
Bacterial loads in hatcheries and virulence of Vibrio spp. to larvae of the tiger shrimp Penaeus monodon
(Bureau of Agricultural Research, Department of Agriculture, 2007)
Shrimp hatcheries are high-density systems and are prone to diseases. A small-scale and a large-scale hatchery for the tiger shrimp Penaeus monodon in Iloilo, Philippines were monitored over two months for water quality ...
Households, agriculture, industry, fishing, and fish farming along Imbang River, Negros Occidental
(Bureau of Agricultural Research, Department of Agriculture, 2007)
Interviews were conducted among respondents identified from the households, agriculture farms, sugar mills, and fish farms along the whole stretch of Imbang River, Malisbog River, and Muyao Creek, down to Barangay Balaring ...
Changes in the fish diversity and abundance on a heavily fished fringing reef on Santiago Island, Pangasinan, Philippines
(Bureau of Agricultural Research, Department of Agriculture, 2007)
Fish assemblages on the reef slope, reef flat, and seagrass beds on Santiago Island were sampled over 18 months in 1992-1993 as part of a 6-year reef monitoring project started in 1986. Abundance and species diversity were ...
The tuna fishery off northwestern Luzon: catch of purse seines and hand lines operating around fish-aggregating 'payaw'
(Bureau of Agricultural Research, Department of Agriculture, 2007)
The tuna fishery along northwestern Luzon was studied from March 1994 to April 1995. About 120 units of fish aggregating ‘payaw’ were set 20–100 km offshore and fished by about 350 handline boats and 6 purse seines. The ...
Collection of the mud crab Scylla serrata var paramamosain in Tinagong Dagat and Sapian Bay, northern Panay
(Bureau of Agricultural Research, Department of Agriculture, 2007)
Mud crabs were collected by baited traps from the mangroves and estuaries of Tinagong Dagat Bay and Sapian Bay in Capiz, northern Panay monthly over 18 months. Scylla serrata var paramamosain made up 95.4% of the collection ...
Treatment of shrimp pond effluents by sedimentation and by seaweed and mussel biofiltration
(Bureau of Agricultural Research, Department of Agriculture, 2007)
Tiger shrimp Penaeus monodon were stocked in three 1,000 m<sup>2</sup> ponds at 12,000 juveniles/pond and grown for 141 days. Water quality in the ponds was monitored over the grow-out period, particularly before and after ...
Socioeconomic profile of tuna fishers in northwestern Luzon
(Bureau of Agricultural Research, Department of Agriculture, 2007)
A study of tuna fishers in northwestern Luzon (Region I) was done by means of a questionnaire. The 511 respondents included 178 from Ilocos Sur, 200 from La Union, and 133 from Pangasinan. Most of them were younger than ...
Assessment of grouper resources around Zamboanga City and Basilan, Philippines
(Bureau of Agricultural Research, Department of Agriculture, 2007)
A total of 2,643 kg of groupers were collected from six markets (96% of the biomass) and from prescribed fish traps in three fishing grounds (106 kg, 4%) around Zamboanga City and Basilan from November 1993 to October 1994. ...
Diet and sexual maturity of yellowfin and skipjack tuna taken by hand lines from fish-aggregating 'payaw' off northwestern Luzon
(Bureau of Agricultural Research, Department of Agriculture, 2007)
Skipjack tuna Katsuwonus pelamis and yellowfin or albacore tuna Thunnus albacares taken by hand lines from the 'payaw' off La Union and Ilocos Sur were sampled from April 1994 until August 1995. Skipjack ranged from 28 cm ...