The optimum fishing effort of fixed net is 12912 nets.
定置网的最适捕捞力量估算为12912张。
We must intensify the management of the fish resources, and take powerful measures to control the fishing effort and catches.
必须加强对该渔场鱼类资源的管理，采取有力措施控制捕捞力量的投入和渔获量的产出，以防鱼类资源进一步恶化。
The management of autumn shrimp fishery mainly involves determining the open date, managing fishing effort, and allocating resource reasonably.
秋汛对虾渔业管理主要是开捕期与捕捞力量的管理和合理分配资源问题。
In the previous study of trawl fishery resources of East China sea and Huanghai sea, the number of hauls is usually taken as the unit of fishing effort.
在以往的东、黄海底拖网渔业资源研究中，投网次数常作为渔捞努力量的度量单位。
The regression catch model incorporating fishing effort and selected environmental variables has a correlation coefficient of 0.97 and a level of confidence of 99%.
包含捕捞努力量和环境变量的渔获量模型的回归系数为0·97，其置信水平达到99%以上。
In trawl fishery, there are many factors affecting the fishing effort of which, the vessel size, actual catching time and the improvement of trawl net are the main factors.
在底拖网渔业中有很多影响渔捞努力量的因素，其中船型大小、实际捕捞时间的长短以及网具改进是主要因素。
The monitoring survey indicated that Chondrichthyes in the Nansha Islands waters could be captured all the year round, and the yield was mainly related with the fishing effort.
监测调查表明南沙珊瑚礁水域的软骨鱼类在全年均可捕获，产量的变动主要与捕捞努力量相关。
The incentive mechanism of taxes and fees is one of the popular method which use the economic way to control the fishing effort and protect the fishery resource in the world wild.
税费激励是近年来国际上流行的用经济手段控制捕捞力量和保护渔业资源的盛行方法之一。
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.
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。
Stock assessment is not only to forecast the static optimum fishing effort and sustainable yield, but also to assess the reactions of fish and fishermen to management choices and other changes.
资源评估是应用各种统计和数学方法量化地研究鱼类种群形态对渔业管理选择的反应。
Stock assessment is not only to forecast the static optimum fishing effort and sustainable yield, but also to assess the reactions of fish and fishermen to management choices and other changes.
资源评估不仅仅是预测静止的最佳捕捞努力量和持续产量，而是评估鱼类和渔民对管理决策和其它变化的动态反应。
Fewer people were spending less effort catching more or less precisely the right number of fish to maximize the long-term value of Iceland's fishing grounds.
越来越少的人们花更少的精力去捕捞可以将冰岛渔场长期价值最大化数量的鱼。
Compared with select model, this model was found to be more general than the select model because of the usage of selection equation and the separation of fishing power and catch effort.
通过与SELECT模型比较，认为模型使用选择性方程并区分渔获能力和捕捞努力量使得模型更具普遍性。
The purpose of the drawer is to warn people that we should spare no effort in protecting our resource in the sea by well managing the developing of fishing industry.
画家的目的是警醒人们应该通过对捕鱼工业良好的管理，不遗余力地保护我们的海上资源。
At present, the most import ant thing is to control the catching effort and limit the increasing unmbers of fishing boats.
当前最关键的是要控制捕捞强度，限制渔船增长。
And how much time and effort we've been giving to their lessons, and they want to get into this 8 fly-fishing, and it's just the perfect situation?
我们花了多少时间与精力给他们上课，而且他们想去钓鱼，现在正是最好不过的时机？
And how much time and effort we've been giving to their lessons, and they want to get into this 8 fly-fishing, and it's just the perfect situation?
我们花了多少时间与精力给他们上课，而且他们想去钓鱼，现在正是最好不过的时机？
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