Effects of human activities on intertidal gastropods

This data was collected to investigate the relationship between human activities and size distribution of gastropods on rocky shores. It was predicted that there would be a negative correlation between the level of human activity and the average size of gastropod species such as Cellana tramoserica, Austrocochlea constricta, Turbo undulata, Thais orbita and Nerita atramentosa, which are collected by humans for bait and occasionally for food. Sampling was undertaken in May 1990 and February/March 1991 at 6 locations within the Bunurong Marine Park, Victoria. On each sampling occasion the size of 100 snails of each species was measured at each site.本数据集的采集旨在探究岩岸生境中人类活动与腹足类（gastropods）物种体型分布之间的关联。研究预设，人类活动强度与上述腹足类物种的平均体型呈负相关关系；这些物种包括特拉莫瑟笠贝（Cellana tramoserica）、紧缩截螺（Austrocochlea constricta）、波纹螺（Turbo undulata）、瘤荔枝螺（Thais orbita）以及黑凹螺（Nerita atramentosa），它们常被人类用作饵料，偶作食物。采样工作分别于1990年5月及1991年2月/3月，在维多利亚州布努荣海洋公园（Bunurong Marine Park）内的6个采样位点开展。每次采样期间，各点位均对每个物种的100只螺类个体进行体型测量。