Website

Region(s)

NE

Summary

GTM NERR participated in a NERR-wide (four northwestern NERR sites and five southeastern NERR sites) study to collect information on non-indigenous crab species and to monitor native abundance and diversity before, during, and after the non-indigenous crab invasion process.

Parameters

species, sex, carapace width (mm), gravid, parasitized, soft

Notes

Application

Data will enable us to determine the range extent of each non-indigenous crab species and, through time, track the rate of spread while predicting areas soon to be infested.

Publications

NERRS National Meeting, NERR websites, NERR specific outreach, and scientific publications

Start

2002

End

2012

Frequency

Quarterly

Method

Seven habitat trays containing oyster shell were deployed in the vicinity of oyster reefs and were surveyed every three months for predicting non-indigenous crab range & expansion rate. All crabs found in collectors were identified, measured, and counted. The sex and general condition of crabs (reproductive status, molt stage, obvious parasites, etc.) were also noted. All non-indigenous individuals were removed from the natural system upon discovery.

Discontinuity

A few missing sampling events

Data Location

GTM NERR Server

Data Format

.xls
No

Habitats

RCP Program not part of SEACAR analysis

SEACAR Citation

Alternative Citation

indicates priority attributes