Earliest record of the invasive Foraminifera Trochammina hadai in San Francisco Bay, California, USA
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Abstract
In 1995, Trochammina hadai, a benthic Foraminifera prevalent in Japanese estuaries, was found in San Francisco Bay, California, USA. Subsequent field investigations determined that the species was also present in nearly all of the major ports and estuaries along the western United States. Because of its widespread colonization, it is of interest to determine when T. hadai first appeared as an invasive in the coastal regions of the North Pacific. In San Francisco Bay, the species was not found in 404 surface samples collected between 1930 and 1981. In 1983, however, a grab sediment sample from one of four sites in the southern portion of the bay contained T. hadai. This site was the most northern of the four and contained 12 specimens of the invasive, comprising 1.5% of the assemblage. This is the earliest appearance on record of T. hadai in San Francisco Bay.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Earliest record of the invasive Foraminifera Trochammina hadai in San Francisco Bay, California, USA |
| Series title | Marine Biodiversity Records |
| DOI | 10.1017/S1755267214000888 |
| Volume | 7 |
| Year Published | 2014 |
| Language | English |
| Publisher | Cambridge University Press |
| Contributing office(s) | Pacific Coastal and Marine Science Center, San Francisco Bay-Delta |
| Description | 7 p.; e94 |
| Country | United States |
| State | California |
| Other Geospatial | San Francisco Bay |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |