渔业部门计划的研究产出:第2卷。渔业和水产养殖报告 http://hdl.handle.net/10862/3258 2021 - 07 - 10 - t16:25:29z 吕宋岛西北部金枪鱼渔民的社会经济概况 http://hdl.handle.net/10862/3262 V. R. R.R的金枪鱼渔民社会经济剖面。LEDDA,N.L.Bagarinao,Teodora,U.通过调查问卷完成了吕宋岛(地区I)的金枪鱼渔民。511名受访者包括178名从Ilocos Sur,200来自La Union,133名来自Pangasinan。他们中的大多数年龄小于50岁,有基本的教育,已婚与3-9名儿童的大家庭,拥有他们住在的房屋,年度收入低约P35,000。钓鱼是他们几乎所有受访者的唯一的生计手段,除了一些农业为捕鱼收入的一些人。大多数每晚都在工作,每天36%钓鱼每隔一天或一天​​钓鱼,每周13%钓鱼五次。大多数渔民晚上出去海洋。完全52%的渔民距离岸边有不到50公里;38%钓鱼在51-100公里范围内,而其他人则超过100公里甚至200公里。La Union Fishers最靠近岸边(平均38公里)和Pangasinan Fishers最远(平均92公里)。 More than 90% of all fishers used motorized bancas, which made it possible for them to fish farther out to sea. Only 36% of the fishers owned the boats and fishing gears they used, and most did not. In all three provinces, the capital for the fishing enterprise came mainly from savings. The average cost of motorized boats was P31,200; non-motorized boats, P1,200. Longlining was the most preferred fishing method in the region. Hand lining was the second most preferred in Ilocos Sur and Pangasinan. Gillnetting and other methods (rabuk, kawil, pana, and bira-bira) were ranked third and fourth, and trawling was the least preferred. Drift gill nets used for tunas cost on average P680; tuna long lines, about P600; tuna hand lines, P345; and troll lines, P750. The main species caught by the fishers were skipjack tuna, yellowfin tuna, frigate tuna, Spanish mackerel, rainbow runner, dolphinfish, sailfish, blue marlin, and threadfins. In Ilocos Sur, most fishers reported catches of 11-20 kg in one trip, and a few fishers caught 50 kg. Spanish mackerel and sailfish gave the fishers better incomes than the other species. Fish catches and prices and fisher incomes in La Union were lower than in Ilocos Sur. Threadfins were more abundant in La Union. Fishers in Pangasinan did not catch sailfin, marlin, or threadfins, but caught higher volumes (20–60 kg/trip) of the other species. 2007-01-01T00:00:00Z 豆粕和米糠在石斑鱼配方饲粮中的应用 http://hdl.handle.net/10862/3278 大豆粕和米糠在斑石斑鱼饲粮中的应用Miag-ao, s . l .;分别配制8-14%的豆粕和9-18%的米糠,34-40%的鱼粉,4-5%的蚌粉,7-8%的Acetes虾粉和11-13%的鱼肝油。采用豆粕和米糠按4:1的比例组合,分别替代12.5%和25%的动物蛋白源。分别配制干D和湿M两种饲粮。4种试验饲粮D12.5、M12.5、D25和M25的蛋白质含量为40 ~ 42%,总能为4000 kcal/g。对照组饲粮为干性饲粮,粗蛋白质含量为44%,热量为4260千卡/克,由30%的秘鲁鱼粉、8%的鱿鱼粉、22%的Acetes虾粉、8%的鱼肝油、8%的大豆油组成,没有植物蛋白来源。在室内400 L混凝土鱼缸(每个鱼缸10尾鱼)中,5种饲料分别饲喂平均体重为1.63±0.47 ~ 2.41±0.91 g的石斑鱼幼鱼。试验饲粮饲喂10周后,石斑鱼幼鱼的生长、采食量、饲料系数(1.2 ~ 2.2)、存活率(60 ~ 80%)与对照组无显著差异。不同饲粮对收获石斑鱼胴体组成的影响不显著。 Protein utilization was best among the fish fed the test diet D12.5. This study showed that soybean meal and rice bran at 4:1 ratio can be included in formulated diets for grouper to replace 12.5% to 25% of the animal protein sources. However, the results for the test diets may also have been due to other factors - the high fish meal content, inclusion of mussel meal, and increase in cod liver oil. 2007-01-01T00:00:00Z 沉淀和海藻和贻贝生物滤膜治疗虾塘流出物 http://hdl.handle.net/10862/3276. 用沉淀法和海藻和贻贝生物过滤法处理虾池废水;斑节对虾(Penaeus monodon) Corre Jr., Valeriano L. Bagarinao, Teodora Tiger shrimp monodon)在3个1000 m2池塘中养殖12000只幼虾,生长141天。在生长期间,特别是每次水质变化前后,对池塘的水质进行监测。随着生物量和饲料投入的增加,出水BOD、叶绿素a和总溶解固形物在生长期均有所增加。无机氮、活性磷、总悬浮物和硫化氢的变化趋势相似。排水和再注水后,浓度下降。土壤样品中有机质、速效磷、碳、氮含量也随生育期增加而增加。半集约对虾池的污水排入8个处理池(每个200 m2),其中3个沉淀池,3个江兰贮20 kg/池,2个贻贝贮10 kg/ m2。分别在添加出水后、1周和2周后以及排水前测定处理池水体的pH、氨氮、亚硝酸盐、硝酸盐、活性磷、生化需氧量、叶绿素a、总悬浮物和总溶解物。土壤pH值、有机质和磷也每两周进行一次分析。 The changes in these variables were similar among the three treatments in the eight ponds. In this study, water quality of effluents improved after one week in the treatment ponds. 2007-01-01T00:00:00Z 菲律宾三宝颜市及巴西兰周围石斑鱼资源评估 http://hdl.handle.net/10862/3275 评估Zamboanga City and Basilan,菲律宾Lasola,N.T .;Samson,R.A .;Domingo, P. B. Bagarinao, Teodora 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. The collection included 26 species in seven genera: Aethaloperca, Cephalopholis, Cromileptis, Epinephelus, Niphon, Plectropomus, and Variola. The three species of highest biomass were Epinephelus fasciatus (26%), Cephalopholis sonnerati (14%) and Cromileptis altivelis (13%). The least biomass was contributed by Epinephelus sexfasciatus (0.1%), Plectropomus areolatus (0.1%), and Cephalopholis sexmaculatus (0.3%). Grouper biomass was lower from November to April and greater from May to October. Groupers caught by the prescribed fish traps were mostly Epinephelus merra (50% of the total). The highest catch of grouper was 0.8 kg/fish trap around Sta. Cruz Island in July, and the highest catch of all demersal fishes was 7 kg/trap around Malamawi Island in September. On average, groupers made up less than 10% of the monthly catch of fish traps. The groupers collected from the markets and from the fish traps averaged 28 cm in total length— all young juveniles. Cromileptes altivelis (average 38 cm) were the largest individuals and Plectropomus spp. (36 cm) similarly so. The largest C. altivelis (1.5 kg) was caught in December and the smallest (0.8 kg) in April and August. The various Cephalopholis species averaged 31 cm, and the various Epinephelus species were smallest at 26 cm. Groupers were largest in December and smallest between January and May. Length-weight equations were derived for seven grouper species. Of the 78 grouper stomachs that were dissected, 52 were empty and 26 contained food, mainly crabs, anchovies, hermit crabs, soldierfish, squids, and shrimps. Groupers with mature and ripe varies had from 3,000 to 11,000 eggs per gram ovary. 2007-01-01T00:00:00Z