查询词典 demersal

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。

Thrissakarnrnalensis was the basal pelagic phytoplankton feeder,while Trachurus japouicu was commonly feed in seagrass circumstance.GC/C-IRMS analysis was applied to fish,zooplankton and demersal species.

建立GC/C-IRMS技术测定生物体单分子脂肪酸碳稳定同位素的方法，应用于长江口毗邻海域主要生物种类带鱼、小黄鱼、黄鲫等海洋鱼类，桡足类、箭虫、水母等浮游动物，中国毛虾、周氏新对虾、中华管鞭虾等底栖生物的研究。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。