查询词典 fishery

As crop decrease, fishing obtains the change of breed, the economic benefits of ocean catching line of business is sure be affected, how to fall in crop reductive circumstance, maintain marine fishery economy to grow continuously, this is an a Gordian knot.

随着产量的减少，渔获品种的变化，海洋捕捞业的经济效益必定受到影响，如何在产量减少的情况下，保持海洋渔业经济持续增长，这是一个棘手的问题。

The background survey and tracking survey of artificial reef area in Chenghai Laiwu were carried out before and after reefing in 2003 and 2007, respectively. The results indicated that after the deployment of artificial reefs, the biomass density of fishery resources increased by 25.63 times, which were much higher than before. The resources species was much more abundant; total number increased from 23 to 41, which increased by 0.78 times. The crab resources sharply increased by 1.75 times after artificial reef were deployed. Harpodon nehereus and Portunus sanguinolentus , which did not appeared in background survey, now became the dominant species in tracking survey. There were high diversity indexes in artificial reefs area and control area in tracking survey. In conclusion, the results indicated that the fish-aggregating effect of artificial reef site has improved a lot, and the community structure and the habitat environment have been significantly improved.

摘 要：2003和2007年分别对澄海莱芜人工鱼礁区进行了投礁前的本底调查和投礁后的跟踪调查，结果表明，投礁后礁区海域游泳生物的资源密度明显比投礁前高，增加了25.63倍；礁区海域各类资源种类均比投礁前丰富，总种数由投礁前的23种增加至41种，比投礁前增加了0.78倍，其中，蟹类种数增加最多，增加了1.75倍；在本底调查中没有出现的经济种类龙头鱼 Harpodon nehereus 和红星梭子蟹 Portunus sanguinolentus 在跟踪调查中已成为主要优势种；Shannon-Wienver多样性指数在礁区和对比区均比投礁前有所增加。

Chinese albacore fishery development strategy in the Northern Pacific Ocean;2. This paper give a review on the development of south pacific albacore .

通过回顾南太平洋长鳍金枪鱼渔业的发展情况，特别是中国1999-2001年间在南太平洋捕捞长鳍金枪鱼的状况，指出我国在此项渔业发展中存在的问题，并提出相应对策。

Faulty system of the ship on international already was built old, our country is in 7, 80 time had made allowance for depreciation to state-owned fishery shipping, steel qualitative fisher is annual allowance for depreciation 5, the depreciation of woodiness fisher slaughters the Ruan that it is m .

国际上船舶报废制度已建立多年，我国在七、八十年代对国有渔业船舶制定过折旧率，钢质渔船每年折旧率5呢，木质渔船的折旧宰为m阮。

Perhaps you are beginning to understand that investment is not as simple as in the fishery angling.

也许现在你开始明白，投资并不像在渔场里钓鱼那么简单。

Over the years, corresponding developments have been made in our farming, forestry, animal husbandry and fishery.

这些年来，我国的农业、林业、畜牧业和渔业都得到相应的发展。

The purpose of this course is to study the theory and application of management principles aquaculture and fishery industry.

本课程之目的，在使学生了解水产品业之管理论与实务。

The above results are accorded with the instance of production practice, indicating that Argo data can be used in fishery production and research.

上述结论符合生产实践中获得的情况，表明Argo数据可以应用于渔业生产和科研中。

Discussion on Catastrophe Risks in China from Earthquake and Tsunami in the Indian Ocean ;2. Preliminary study on appropriate environmental parameters for bigeye tuna longline fishery in the Indian Ocean ;3. The "charge/discharge" roles of the basin-wide mode of the Indian Ocean SST anomaly——influence on the South Asian High in summer

印度矿粉由于其高铁低硅，并且价格低廉，因此受到国内多个钢铁厂的青睐，为了充分发挥其优势，从不同品味的印度矿粉出发，得出其各自的烧结特点，找出不同品位印度矿粉对烧结矿的冶金性能的不同影响，并通过对烧结矿的显微结构和矿物组成分析了微观组织结构的变化规律，找出内外部条件的依存关系，有效指导了天钢烧结生产。

In the 1970s, for instance, West Coast trawlers were landing 11,000 tonnes of bocaccio a year. In 2001, just before the fishery was closed, the catch was 214 tonnes.

例如七十年代，在美国西海岸拖网渔船每年捕捞上岸11000吨菖鲉，到2001年，在此渔场被关闭前，捕捞量已降到214吨。

This paper analyzes the compound attractor structure of a new three-dimensional autonomous chaotic system.

分析了一种新的三维自治混沌系统吸引子的复合结构。

ON shut rivals out of their transmission systems and shy away from reinvesting their profits in network improvements.

ON将竞争者挡在了其输送体系之后，并不愿将其收益再投资于网络改建工作。