大麻哈鱼产卵场呼玛河段水域优势水生植物氮、磷吸收率初探  

Study on nitrogen and phosphorus absorption rate of dominant aquatic plants in Huma River section of spawning grounds of Oncorhynchus keta

作　　者：鲁万桥 李培伦[1] 刘伟[1] 唐富江[1] 王继隆[1] LU Wan-qiao;LI Pei-lun;LIU Wei;TANG Fu-jiang;WANG Ji-long(Heilongjiang River Fisheries Research Institute,Chinese Academy of Fishery Sciences/Experimental Station of Fishery Resources and Environment in Heilongjiang River Basin,Ministry of Agriculture and Rural Affairs,Harbin 150070,China)

机构地区：[1]中国水产科学研究院黑龙江水产研究所/农业农村部黑龙江流域渔业资源环境科学观测实验站,哈尔滨150070

出　　处：《湖北农业科学》2023年第4期27-31,共5页Hubei Agricultural Sciences

基　　金：农业农村部财政专项物种资源保护类项目(2130135);农业财政专项项目和中央级公益性科研院所基本科研业务费专项项目(2020TD07)。

摘　　要：由于环境的变迁以及人为的干涉,导致呼玛河段大麻哈鱼(Oncorhynchus keta)产卵场滋生大量不利于其繁殖的沉水性水生植物。为了修复该处产卵场,自2018年10月至2019年1月通过设计室内试验以及数理统计学处理的方式,针对该段水域几种优势水生植物(普生轮藻、柔枝水藓及水绵)的N、P吸收速率进行探究。结果表明,3种植物处在不同N/P营养盐溶液中的N、P最佳吸收速率各有不同。通过探寻3种沉水植物的生长及营养盐吸收机理,为修复呼玛河段大麻哈鱼产卵场提供相关依据及理论基础。Due to environmental changes and human interference,the spawning grounds of Oncorhynchus keta in the Huma River sec⁃tion breeds a large number of submerged aquatic plants that are not conducive to their breeding.In order to repair the spawning grounds,from October 2018 to January 2019,through the design of indoor experiments and mathematical statistics processing,the N and P absorption rate of several dominant aquatic plants in this section of water(Chara vulgaris,Fontinalis hypnoides and Spirogyra communis)were explored.The results showed that the three plants had different optimal absorption rates of N and P in different N/P nu⁃trient salt solutions.The purpose of this study was to provide the relevant basis and theoretical basis for the restoration of Oncorhynchus keta spawning grounds in the Huma River by exploring the growth and nutrient salt absorption mechanisms of three submerged plants.

关 键 词：大麻哈鱼(Oncorhynchus keta) 产卵场修复 沉水性水生植物 氮 磷 吸收速率 

分 类 号：X173[环境科学与工程—环境科学]