Distribution patters of planktivorous reef fish along the coast of northeastern New Zealand
Distribution patters of planktivorous reef fish along the coast of northeastern New Zealand
复制标题
新西兰东北部海岸食浮游生物礁鱼的分布模式
DOI：
10.3354/meps054013
复制
发表时间：
1989
期刊：
影响因子：
--
通讯作者：
M. Kingsford
中科院分区：
文献类型：
--
作者：
M. Kingsford
A B S T M T：利用视觉计数法描述了新西兰北国海岸100公里范围内食鱼性珊瑚鱼的大规模分布格局：包括在大陆架各岛屿上取样。还研究了丰度的时间变化。条带横切和快速视觉计数（RVC）之间的比较表明，RVC的是最适合的大规模调查。13种食鱼性鱼类的丰度分布格局各不相同。一些物种在整个大陆架上表现出显着的差异（例如，Chornis dispilus和Scorpis aequipinnis）。其他物种（如鳞翅目Casioperca lepidoptera和齿伪鲹Pseudocaranx dentex）没有发现跨大陆架差异。2种的丰度沿沿着轴分布。物种的比例代表性在研究区域内各不相同。C. dispilus在研究区的大部分地区占主导地位。西南地区S. aequipinnis和/或Trachurus novaezelanopsis。在5年以上的组成，在外架和内架位置的鱼类保持相似。两组食鱼的鱼类被确定，那些与一个密切的协会（如C dispilus）和那些temporrg协会与珊瑚礁（如Trachurus novaezealanterus）。第一组在15个月内在两个地点的丰度变化不大，而另一组则表现出相当大的时间变化。在一天中的不同时间，没有发现任何一组的丰度有规律的变化。水文学可能会影响浮游动物的组成和丰度，这可能会影响定居礁鱼的生存和鱼类在礁上的摄食。需要调查可能决定食鱼性鱼类分布模式的亲盐因素。
A B S T M T : Broad-scale distribution patterns of planktivorous reef fish were described using visual counts daag 100 km of the coast of Northland, New Zealand: including sampling at islands across the continental shelf. Temporal variation in abundance was examined also. Comparisons between strip transecb and rapid visual counts (RVC's) indicated that RVC's were most appropriate for a broad-scale survey. Different abundance patterns were found for 13 species of planktivorous fish. Some species exhibited significant differences across the shelf (e.g. Chrornis dispilus and Scorpis aequipinnis). No cross-shelf differences were detected for others (e.g. Casioperca lepidoptera and Pseudocaranx dentex). Abundanxe of 2 species differed along a north-south axis. The proportional representation of species varied uGlhin the study area. C. dispilus dominated over a large part of the study area. The southwestern region had a high proportion of S. aequipinnis and/or Trachurus novaezelandiae. Over 5yr the composition of fish at an outer-shelf and inner-shelf location remained similar Two groups of planktivorous fish were identified, those with a close association (e.g. C dispilus) and those which a tempomrg association with reefs (e.g. Trachurus novaezealandiae). The first group showed llttle variation in abundance at 2 sites over 15 mo, while the other exhibited considerable temporal variation. Regular variation in abundance at different times of the day was not found for either group. It is suggestad that hydrology may influence the composition and abundance of zooplankton which may influence survivorship of presettlement reef fish and the feeding of fish on reefs. Investigation of pro-ale factors which may determine the distribution patterns of planktivorous fish is required.
Okawara,Y.et al：生命科学进展。
DOI：
--
发表时间：
--
期刊：
影响因子：
--
作者：
通讯作者：
--