论文部分内容阅读
约氏笛鲷 Lutjanus johnfj(Bloch)属于鲈形目 (Percis)、笛鲷科(Lutjanidae)、笛鲷属(Lutjanus), 广泛分布于非洲东岸、印度、菲律宾、中国、澳大利亚沿海。具有生长快,抗病力强和肉质鲜美等优点,是我国南方海水网箱养殖的优良种类和海水捕捞主要对象之一。由于约氏笛鲷初孵仔鱼个体小,刚开口仔鱼口裂较小,必须提供个体较小的动物性饵料。但是,培养大量个体较小的开口动物性饵料具有一定难度,使约氏笛鲷育苗存在成苗率低的主要问题。为了探索提高约氏笛鲷池塘育苗技术的稳定性,笔者于2003年7～8月在临高县新盈镇的临高海水鱼苗繁殖基地进行约氏笛鲷池塘育苗试验,采用浸沤的鱼汁为肥料,施肥于池塘进行大水体培养轮虫,确保仔鱼饵料的稳定供应,从而较大提高约氏笛鲷育苗的成苗率。在
Lutjanus johnfj (Bloch) belongs to Percis, Lutjanidae and Lutjanus. It is widely distributed on the coasts of East Africa, India, the Philippines, China and Australia. It has the advantages of fast growth, strong resistance to disease and delicious meat. It is one of the finest species of marine cage culture and the main object of sea fishing in southern China. Due to the small hatchlings of Oyster’s snapper, which are small in size and open mouth, the larvae of the newly hatched larvae have a relatively small size and must provide animals with smaller animals. However, cultivating a large number of smaller individual animals has a certain degree of difficulty in opening the mouth, so that there is a major problem of snapper seedling emergence rate is low. In order to explore and improve the stability of the Yedunchi snapper pond nursery technique, the author conducted the experiment of seeding the Yonsei snapper pond in July-August, 2003, at the Lin Gao seawater fry breeding base in Xinying Town, Lingao County, Juice for fertilizers, fertilizers in ponds for large water body culture rotifer, to ensure a stable supply of larval fish feed, so as to greatly enhance the snapper seeding yo’s seeding rate. in