Vertical and Horizontal Distributions and Size Structures of Four Species of Limpets (Notoacmea) in Amakusa

DOI Web Site

Bibliographic Information

Other Title
  • 天草における Notoacmea 属 4 種の分布とサイズ組成
  • 天草におけるNotoacmea属4種の分布とサイズ組成〔英文〕
  • アマクサ ニ オケル Notoacmeaゾク 4シュ ノ ブンプ ト サイズ

Search this article

Abstract

Distribution and size structure of four Notoacmea limpets were studied in several boulder shores in Amakusa. N. concinna occurred in the upper intertidal zone, followed by N. teramachii and N. nigrans in the middle intertidal zone, and N. schrenckii in the lower intertidal zone. Although vertical distribution of these species overlapped with each other, the peak of density of each species occurred at almost the same tide level. The frequency of N. teramachii decreased from the exposed shore to the sheltered shore, but that of N. nigrans increased. The size structures of N. teramachii and N. nigrans had a clear mode with narrow range, while that of N. concinna and N. schrenckii had unclear modes with wide range. In some shores, the mode sizes of N. nigrans and N. teramachii decreased with decreasing tidal height. Probable factors related to the distributions of these four species and their interactions are discussed.

Journal

Details 詳細情報について

Report a problem

Back to top