SBC LTER: Settlement of urchins and other invertebrates, ongoing since 1990

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. See Methods for more information.