菲律宾Zamboanga City及Basilan附近的石斑鱼资源评估
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- 爱思唯尔——哈佛大学
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摘要
1993年11月至1994年10月,在三宝爱嘉市和巴西兰附近的6个市场(占生物量的96%)和3个渔场(106公斤,4%)的指定渔网共收集了2,643公斤石斑鱼。收集到7属26种,分别是:蛇石斑鱼属、头石斑鱼属、蛇石斑鱼属、石斑鱼属、扁石斑鱼属和天花石斑鱼属。生物量最高的3种为筋膜石斑鱼(26%)、sonnerati头侧石斑鱼(14%)和高坡克米列石斑鱼(13%)。生物量贡献最小的依次为斑纹石斑鱼(0.1%)、斑平纹石斑鱼(0.1%)和斑纹头蜱(0.3%)。石斑鱼生物量从11月到4月下降,从5月到10月上升。用指定的捕鱼器捕到的石斑鱼多为斑纹石斑鱼(占总数的50%)。石斑鱼的最高捕获量为0.8 kg/条。9月,马拉马拉维岛附近底栖鱼类最高捕获量为7公斤/篓。平均而言,石斑鱼占每月捕渔量的不到10%。从市场和渔网收集到的石斑鱼的总长度平均为28厘米-所有的幼鱼。 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.
建议引用
Lasola, n.t., Samson, r.a., & Domingo, P. B.(2007)。菲律宾三宝颜市及巴西兰周围石斑鱼资源评估。T. U. Bagarinao(编),渔业部门项目的研究产出(第2卷)。渔业和水产养殖报告,第105-108页)。菲律宾奎松市:农业部农业研究局。