SBC LTER: Time series of settlement of urchins and other invertebrates

The dataset comprises weekly to biweekly data on invertebrate
settlement on artificial substrates at six sites in Southern
California, and one site in Northern California. The study began in
early 1990 and is ongoing. The study’s main focus is on urchins
(

Strongylocentrotus purpuratus

and

Mesocentrotus franciscanus

), but was expanded to
include selected bivalves, gastropods and crabs during the period
1994-1997.

The purpose of the study is to compare and contrast patterns of
settlement supply across a large geographical gradient to explore the
possible influence of oceanographic features on these patterns. Both
of these goals are facilitated by the long duration of the dataset,
its large geographical range and the high temporal frequency of
collection.

本数据集涵盖美国南加州6个观测点位与北加州1个观测点位的人工基质上无脊椎动物幼体定居情况的周度至双周观测数据。本研究启动于1990年初，目前仍在持续开展。研究的核心关注对象为紫海胆（Strongylocentrotus purpuratus）和红海胆（Mesocentrotus franciscanus），并于1994年至1997年间将研究范围扩展至选定的双壳类、腹足类及甲壳类动物。

本研究旨在对比跨大范围地理梯度的生物定居供应格局，以探索海洋学特征对该格局的潜在影响。数据集具备的长期观测时长、广泛的地理覆盖范围与较高的采样时间频率，为实现上述两项研究目标提供了充分支撑。