该研究基于Web of Science(WoS)核心数据库,通过文献计量方法,对1995—2019年鳞头犬牙南极鱼(Dissostichus mawsoni)研究现状进行分析。结果表明:涉及鳞头犬牙南极鱼的研究逐年增多,发文期刊集中于少数极地或生物学期刊。共被引文献聚...该研究基于Web of Science(WoS)核心数据库,通过文献计量方法,对1995—2019年鳞头犬牙南极鱼(Dissostichus mawsoni)研究现状进行分析。结果表明:涉及鳞头犬牙南极鱼的研究逐年增多,发文期刊集中于少数极地或生物学期刊。共被引文献聚类分析结果显示鳞头犬牙南极鱼研究共分为8个方面,分别为:生理感光性(photoreceptors),罗斯海海区(Ross Sea),繁殖(reproduction),侧纹南极鱼(silverfish),晶状体(lens),浮力(neutral buoyancy),分布范围(distribution)及渔业生态影响(ecosystem effects of fishing)。主要研究方向可分为:一是鳞头犬牙南极鱼个体基础生物学分析;二是对鳞头犬牙南极鱼生活史的探究;三是外界生态环境对鳞头犬牙南极鱼的影响;四是多年间鳞头犬牙南极鱼的变化趋势。Burst检测结果显示涉及鳞头犬牙南极鱼研究的前沿热点方向为:生物学特征及其差异;生活史过程分析;基于食物网的生态学分析;个体浮力分析;沿时间线数量、个体大小等方面的变化趋势。展开更多
The Patagonian Shelf is a very productive region with dif ferent ecosystem structures. A long history of fishing in the Southwestern Atlantic Ocean combined with a complex hydrographic structure, with a permanent fron...The Patagonian Shelf is a very productive region with dif ferent ecosystem structures. A long history of fishing in the Southwestern Atlantic Ocean combined with a complex hydrographic structure, with a permanent front over the shelf-break and dif ferent coastal frontal regions, and a wide non-frontal area in between have made the food web in this area more complex and have resulted in changes to the spatialtemporal scale. Stable isotopes of carbon and nitrogen were used to determine the trophic structure of the Patagonian shelf break which was previously poorly understood. The results indicated that the average δ^(15)N value of pelagic guild(I llex argentinus) was remarkable lower than those of the other guilds. The δ^(13)C values of almost all species ranged from-17‰ to-18‰, but S tromateus brasiliensis had a significant lower δ^(13)C value. Compared with the southern Patagonian shelf, short food chain length also occurred. The impact of complex oceanographic structures has resulted in food web structure change to the temporal-spatial scale on the Patagonian shelf. The Patagonian shelf break can be considered as a separated ecosystem structure with lower δ^(15)N values.展开更多
文摘该研究基于Web of Science(WoS)核心数据库,通过文献计量方法,对1995—2019年鳞头犬牙南极鱼(Dissostichus mawsoni)研究现状进行分析。结果表明:涉及鳞头犬牙南极鱼的研究逐年增多,发文期刊集中于少数极地或生物学期刊。共被引文献聚类分析结果显示鳞头犬牙南极鱼研究共分为8个方面,分别为:生理感光性(photoreceptors),罗斯海海区(Ross Sea),繁殖(reproduction),侧纹南极鱼(silverfish),晶状体(lens),浮力(neutral buoyancy),分布范围(distribution)及渔业生态影响(ecosystem effects of fishing)。主要研究方向可分为:一是鳞头犬牙南极鱼个体基础生物学分析;二是对鳞头犬牙南极鱼生活史的探究;三是外界生态环境对鳞头犬牙南极鱼的影响;四是多年间鳞头犬牙南极鱼的变化趋势。Burst检测结果显示涉及鳞头犬牙南极鱼研究的前沿热点方向为:生物学特征及其差异;生活史过程分析;基于食物网的生态学分析;个体浮力分析;沿时间线数量、个体大小等方面的变化趋势。
基金Supported by the National Key Technology R&D Program of China(No.2013BAD13B03)the National Natural Science Foundation of China(No.41776185)the Special Fund for Agro-Scientifi c Research in the Public Interest of China(No.201203018)
文摘The Patagonian Shelf is a very productive region with dif ferent ecosystem structures. A long history of fishing in the Southwestern Atlantic Ocean combined with a complex hydrographic structure, with a permanent front over the shelf-break and dif ferent coastal frontal regions, and a wide non-frontal area in between have made the food web in this area more complex and have resulted in changes to the spatialtemporal scale. Stable isotopes of carbon and nitrogen were used to determine the trophic structure of the Patagonian shelf break which was previously poorly understood. The results indicated that the average δ^(15)N value of pelagic guild(I llex argentinus) was remarkable lower than those of the other guilds. The δ^(13)C values of almost all species ranged from-17‰ to-18‰, but S tromateus brasiliensis had a significant lower δ^(13)C value. Compared with the southern Patagonian shelf, short food chain length also occurred. The impact of complex oceanographic structures has resulted in food web structure change to the temporal-spatial scale on the Patagonian shelf. The Patagonian shelf break can be considered as a separated ecosystem structure with lower δ^(15)N values.
