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spawning stock
Vertaling van "spawning stock" in Chinees
产卵鱼群
产卵群
They further agreed that there was an urgent need for scientific research aimed at establishing the appropriate levels of spawning stock biomass.
他们还认为迫切需要进行科学研究，以期产卵鱼群生物量达到适当数量。
In the discussion of areas of poor performance it was noted that estimates of the depletion of the spawning stock biomass suggested that CCSBT had not been successful in managing southern bluefin tuna.
讨论业绩差的领域时注意到，对产卵鱼群生物量枯竭方面的估计显示，南部金枪鱼养护委在管理南方蓝鳍金枪鱼方面不成功。
The objectives of management are to ensure that the fish mortality rates and the size of the spawning stock biomass are maintained at or above desired levels.
管理目标是确保鱼类死亡率和产卵群生物量规模保持在或者超过预期水平。
In practice, the precautionary approach entails the setting of reference points that signal objectives for management and threshold levels for spawning stock size and fish mortality.
在实践中采用预防性做法需要设定参考点，借此来标示管理目标和产卵群规模和鱼类死亡率的临界值。
Should the spawning stock biomass fall below Bpa, this fishing mortality rate shall be adapted in the light of scientific estimates of the conditions then prevailing.
如果产卵群生物量降至生物量临界值以下时，应根据对当时情况的科学评估结果来调整这一渔捞死亡率。
The Commission endorsed the recommendations of the Subcommittee that the subsequent escapement target for an enhanced early warning system should be 90,000 to 95,000 tons of the spawning stock biomass present in the fishery in the last week of April, the midpoint of the period of maximum reproduction.
委员会赞成小组委员会的建议，预警系统改进后的逃逸量应是在4月最后一星期，繁殖最多期间的中点时产卵鱼群生物量达90000-95000吨。
The Commission agreed to recommend to their Governments that every effort be made to ensure a level of 40,000 metric tonnes of Illex spawning stock biomass at the end of the 1998 season.
委员会同意建议两国政府竭尽所能，确保在1998年底产卵群生物量达到40000公吨的水平。
The Commission agreed to recommend to both Governments that, until such time as agreement is reached on any increased escapement target, every effort be made to maintain the level of Illex spawning stock biomass at the end of the fishing season above the previously agreed level, in order to ensure stock sustainability.
委员会商定建议两国政府，在就增加任何逃逸量指标达成协议以前，应尽一切努力在捕捞季节结束时保持Illex产卵鱼群生物量达到商定数量，以保证该种群持续生存。
It is significantly more precautionary compared to the target of 40,000 tons for the spawning stock biomass at the end of the season, including a much higher level of spawning stock biomass during the period of peak reproductive activity of the stock.
这个指标与捕渔季节结束时产卵鱼群生物量为4万吨的指标和在繁殖活动达到高峰期间产卵鱼群生物量远为高得多的指标比较就低很多。
One critical issue is how threshold levels should be set for spawning stock sizes and rates of decline.
关键问题是如何设定产卵群规模和下降率（鱼类死亡率）。
The management procedure was selected and constructed to promote the rebuilding of the stock and to ensure that there is a 50 per cent chance that the spawning stock biomass will be above the 2004 level by 2014.
选取和构建的管理程序是为了促进种群的恢复，确保到2014年产卵群生物量超过2004年水平的可能性达到50％。
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