horizontal temperature gradient

Because the statistical unit of catch production is fishing grid whose size is 30 ×30 or 10 ×10 in marine fishery, the horizontal temperature gradient of fishing grid need to be calculated in order to analyze fishing ground environment by scientists.

在海洋渔业GIS应用中,用现有GIS直接计算渔区温度水平梯度时,由实际距离问题引起的相对误差达26％、绝对误差达0。

In other words, although coastal states enjoy preferential rights in their exclusive fishing zones or oth.

在20世纪80年代以前,经过国际社会的长期讨论与实践,传统捕鱼权得到了多数沿海国的认可与尊重,即沿海国在其专属渔区或管辖范围内拥有优先权,而其他国家在其国民长期以来惯常捕鱼的区域享有继续捕鱼的权利。