但是，由于作为研究对象的鱼类洄游于上述两个海域之间，于是问题也就产生了：捕鱼活动在部分海域的减少，对鱼类数目的影响究竟有多大。
The fish species in question, however, migrate between these two areas, so the question was how much the reduction of fishing effort in part of their range would affect their Numbers.
这些鱼类分为4个主要生态类型，包括河口性鱼类、近海鱼类、江海洄游型鱼类和淡水鱼类。
These fish could be categorized into four types, including estuarine fishes, marine fishes, diadromous fishes and of freshwater fishes.
但有一点是显而易见的：停止捕鱼活动（即便只持续六年时间）对于洄游鱼类的影响，与对于非洄游鱼类的影响同样大。
But one lesson is clear. Laying off, even for just six years, has as big an effect on migratory fish as it does on sedentary ones.
暗纹东方鱼屯俗称河豚，属江海洄游性鱼类。
Takifugu obscurus, popularly named obscure puffer, is a fish of river to sea migration.
本研究以福建平潭岛周边海域的洄游性海鱼类作为研究材料，分离海洋鱼类共附生的放线菌及真菌。
In this study, we isolated Marine actinomycetes and fungi from migratory Marine fish which were collected from Pingtan sea side in Fujiang province.
本研究以福建平潭岛周边海域的洄游性海鱼类作为研究材料，分离海洋鱼类共附生的放线菌及真菌。
In this study, we isolated Marine actinomycetes and fungi from migratory Marine fish which were collected from Pingtan sea side in Fujiang province.
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