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首页> 外文期刊>Indian Journal of Fisheries >Seasonal abundance of commercially important finfish and shellfish seed resources in Shambhavi Estuary, Karnataka
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Seasonal abundance of commercially important finfish and shellfish seed resources in Shambhavi Estuary, Karnataka

机译：卡纳塔克邦香巴拉河口商业上重要的有鳍鱼类和贝类种子资源的季节性丰富

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摘要

Year round availability of commercially important fin and shellfish seed is one of the essential requirements for capture based aquaculture (CBA). The present study was undertaken to ascertain the availability of finfish and shellfish seed resources in the Shambhavi Estuary, Mulki, Karnataka. Six species of commercially important seed resources were recorded viz., Mugil spp., Etroplus suratensis, Lutjanus argentimaculatus, Lutjanus russelli, Fenneropenaeus indicus and Penaeus monodon. The distribution and relative abundance of the above seeds were studied in different seasons for a period of 12 months from March, 2011 to February, 2012 in relation with the important environmental parameters such as rainfall, temperature, dissolved oxygen, salinity and pH. All the above parameters studied showed significant variation with the seasonal abundance of the fish and shellfish seeds. Among the finfish seeds, Mugil spp. and E. suratensis dominated and contributed to 56.4% and 25.6% respectively in the month of June. However, these two species were available in small quantities during rest of the study period. The occurance of P. argentimaculatus and L. russelli was to the tune of 1.5% (November) and 3.2% (May) respectively. Among shrimp seeds, F. indicus showed distinct seasonal variation with their peak abundance in the early pre-mansoon (January/February) months and late post-mansoon months (November/January). Whereas, P. monodon was predominant during early post-monsoon season (November/December). The outcome of this study would be useful for planning of capture based-aquaculture of commercially important finfish and shellfish species in coastal Karnataka
机译：具有重要商业意义的鳍和贝类种子的全年可用性是基于捕捞的水产养殖（CBA）的基本要求之一。进行本研究是为了确定卡纳塔克邦穆尔基的香巴拉河口有鳍鱼和贝类种子资源的可用性。记录了六种具有重要商业价值的种子资源，分别是Mugil spp。，Etroplus suratensis，Lutjanus argentimaculatus，Lutjanus russelli，Fenneropenaeus indicus和Penaeus monodon。在2011年3月至2012年2月的12个月内，根据降雨，温度，溶解氧，盐度和pH等重要环境参数研究了上述种子在不同季节的分布和相对丰度。上述所有研究参数均显示出鱼类和贝类种子的季节变化显着。在有鳍鱼种子中，Mugil spp。六月份，E。suratensis和E. suratensis分别占56.4％和25.6％。但是，在研究的剩余时间内，这两种物种的数量很少。 argentimaculatus和L. russelli的发生率分别为1.5％（11月）和3.2％（5月）。在虾种中，印度扁桃表现出明显的季节性变化，在季风前期（1月/ 2月）和季风后后期（11月/ 1月）达到峰值。而在季风后早期（11月/ 12月），斑节对虾占主导地位。这项研究的结果将有助于规划卡纳塔克邦沿海重要商业有鳍鱼类和贝类的捕捞为基础的水产养殖

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