拖网
- 与 拖网 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
The demersal fishery resources in all areas of the northern South China Sea have been over-exploited, and more severe overfishing occurred in the inshore and offshore waters than in the out shelf.
南海北部海域底拖网渔业资源均处于过度开发状态,沿岸和近海过度开发较严重,外海过度开发的强度相对较轻。
-
On the basis of the bottom trawl fishery resource investigation in the offshore water of south Zhejiang in May, August, November 2006 and February 2007, this paper estimated the abundance and allowable catch of demersal species.
2006年5月、8月、11月和2007年2月,对浙江南部外海渔场使用底拖网进行渔业资源调查。据其资料,使用扫海面积法估算浙江南部外海底层渔业资源量以及可捕量。
-
By R type analysis, the results show that there are 4 species, Raja kanojei, Coilia mystus, Muraenesox cinereus and Collichthys niveatus, which are correlated closely in spring;and 5 species, Engraulis japonicas, Pseudosciaena polyatis, Lophius litulon, Chelidonichthys kumu and Saurida elongate, in summer; and 5 species, Trichiurus haumela, Pampus nozawae, Erisphex potti, Pneumatophorus japonicas and Pseudosciaena polyatis, in autumn; and 3 species, Trichiurus haumela, Champsodon capensis and Acropoma japonicum, in winter.
根据2000年春(4月)、夏(6月)、秋(9月)、冬(12月)四季东海、黄海底拖网鱼类资源调查资料,使用因子分析的方法分析了该海域鱼类数量分布的季节变化特征。R型分析发现,春季关系最密切的鱼种有4种:斑鳐、凤鲚、海鳗和黑鳃梅童鱼;夏季有5种:鳀、小黄鱼、黄鮟鱇、绿鳍鱼和长蛇鲻;秋季也有5种:带鱼、灰鲳、虻鲉、日本鲭和小黄鱼;冬季有3种:带鱼、鳄齿鱼和发光鲷。
-
V require tow time restrictions on try nets with headrope lengths of 12 feet or less.
要求在拖网限定的时间堥洏峈曮蚻12英尺或者12英尺以下的网绳。
-
The use of incandescent lamps is the important way to improve the catch in which more than half of the total catch were taken from 3a.m. to 5a.m., and the catch was 0.565t/h and 1.044t/h before and after applying the light, respectively. The method of using 1.6mm×3- row squid jigging machine with each jigging line equipped with 6 to 8 jiggers is applied to effectively reduce the dropping hook rate to only 12 percent.
我国拖网渔船也曾在也门沿岸海域兼捕到一些鸢乌贼[3]。2003年9~11月我国首次利用鱿钓船对印度洋西北海域鸢乌贼进行调查,并对钓捕技术、渔场形成等进行专题试验[4],取得了初步成果。2004年9月~2005年1月又一次对印度洋西北海域鸢乌贼资源进行调
-
Based on the bottom trawl surveys conducted in the central and southern Yellow Sea in autumn during 2000-2002, the food consumption by 23 fish predators such as Trichiurus lepturus, Pseudosciaena polyactis, Lophius litulon, Liparis tanakae etc. was estimated by Egger's model. The results suggest that the total food consumption by these predators during autumn was over 3.09 million tons.
研究鱼类与饵料生物之间食物定量关系进而为多鱼种资源评估提供依据,2000~2002年秋季(10~11月)在黄海中南部海域进行了定点底拖网调查,应用Egger、模型,计算了带鱼、小黄鱼、黄鮟鱇、细纹狮子鱼等23种鱼类在秋季对饵料生物的摄食量。
-
Climate change could lead to mismatches between the reproductive cycles of marine organisms and their planktonic food.
这些虾一般被看作是其它类型的养殖或在较温暖水域中拖网捕捞的虾的一种更有持续性的替代品种。
-
The aim of this study is attempted to analyze the sergestid shrimp fishery in Tongkang area, southwestern Taiwan in order to construct the complete procedure of co-management system and provide the features of institution design as reference for other countries.
而本文旨在分析台湾东港地区中层虾拖网之樱虾渔业在历经十余年由内部控制与外部控制,构筑共同管理制度的全部过程,并提出制度设计的特色,期能供各国沿近海渔业在建构或改善共同管理制度时之参考。
-
My husband's trawlboat was caught in a storm but he came to no harm.
我丈夫的拖网渔船遇上了暴风雨,但他平安无事。
-
On the basis of taxonomy of genus Trichiurus and length-frequency data collected by trawl survey in the northern South China Sea, growth and mortality parameters for three species of Trichiurus were estimated. For T. haumela, T.
根据我国近海带鱼分种研究结果,利用南海北部底拖网调查收集的带鱼属3鱼种的生物学资料,运用长度频率法估算了3鱼种的生长和死亡参数。
- 推荐网络例句
-
The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
-
This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
-
The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力