论文部分内容阅读
外荡水域由于水位稳定,水深适度,面积大小适宜,十分适宜渔业生产。天然条件较好,特别是城市郊区的外荡,由于城市居民生活污水给水体中的浮游生物提供了大量的营养,致使鱼(蚌)类生长迅速,渔业高产高效。绍兴的外荡高产荡、精养荡也大量集中在城郊,珍珠蚌养殖也密布于城郊外荡水?
Due to the stability of the water level outside the water area, moderate water depth, size and appropriate, very suitable for fishery production. Natural conditions are better, especially in the outskirts of urban areas. Due to the large amount of nutrition provided by plankton in urban domestic sewage to water bodies, the fish (clams) grow rapidly and the fisheries produce high yield and high efficiency. Shaoxing, the high-yielding swing, intensive care is also concentrated in the suburbs, pearl mussel farming is also densely covered in water outside the city?