欢迎访问《中国农学通报》,

中国农学通报 ›› 2017, Vol. 33 ›› Issue (14): 138-142.doi: 10.11924/j.issn.1000-6850.casb16090087

所属专题: 资源与环境 农业生态

• 水产 渔业 • 上一篇    下一篇

黑莓鲈苗种土池生态培育及人工驯食技术研究

钟全福   

  1. 福建省淡水水产研究所 福州350002
  • 收稿日期:2016-09-19 修回日期:2016-11-23 接受日期:2016-12-01 出版日期:2017-05-25 发布日期:2017-05-25
  • 通讯作者: 钟全福
  • 基金资助:
    福建省渔业“五新”科技推广项目[闽海渔五新合同(2012) 007 号]。

Ecological Breeding of Pomoxis nigromaculatus Larvae in Earth Pond and Bait Domestication of Juvenile

  • Received:2016-09-19 Revised:2016-11-23 Accepted:2016-12-01 Online:2017-05-25 Published:2017-05-25

摘要: 为探讨黑莓鲈生态育苗技术,采用了仔稚鱼土池生态培育与室内水泥室人工配合饲料驯饵转料相结合的育苗方式,进行了黑莓鲈人工育苗试验。结果显示,土池通过肥水培养饵料生物,添加外源饵料生物系列,放养黑莓鲈仔鱼5.1万尾/667m2,经过50天的培育,共培育出平均全长3.37 cm的鱼苗31.4万尾,平均成活率为62.36%,仔鱼开口饵料以轮虫、枝角类为主,其体长(LT)与日龄(T)的回归方程为:LT=0.006T2 0.251T 2.875(R2=0.995);幼鱼全长30 mm时开始驯食,以水蚯蚓作为驯食先导饵料,配合饲料驯食成功率达99%~100%,平均驯食成活率93.87%。土池生态育苗,水质稳定,饵料生物种群数量丰富,可以提高黑莓鲈育苗成活率,获得稳定的育苗效果。

关键词: 高粱, 高粱, GIS, 气候因子, 气候区划指标

Abstract: To explore the ecological breeding methods ofPomoxis nigromaculatus , larvae were bred in earth pond and bait domestication of juvenile was adopted in indoor concrete pond. The results showed that when using natural baits cultured in earth ponds by organic fertilizer and adding external biological baits, and the density was 76.5×104 larvae/hm2, we harvested 31.4×104 fry after 50 day’s cultivation. The average body length of fry was 3.37 cm, and the survival rate was 62.36%. The baits of larvae mainly consisted of rotifer and cladoceran. The regression equation of body length (LT ) and daily age (T ) wasLT =0.006T2 0.251T 2.875 (R2 = 0.995). Bait domestication was conducted when body length of juvenile fish was 30 mm. Water earthworm was used as pilot bait. Success rate of bait domestication with compound feed was 99%-100% and the average survival rate was 93.87% after domestication. Water quality was stable and baits were rich in earth pond, thus ecological breeding in earth pond could improve survival rate of larvae and keep stable breeding efficacy.

中图分类号: