| Title | A doubled down invasion of the northeast Pacific by the Asian mud shrimp, Upogebia major, and its coevolved bopyrid isopod parasite, Orthione griffenis |
| Publication Type | Journal Article |
| Year of Publication | 2021 |
| Authors | Chapman, John W., Jingchun Li, Michael F. McGowan, Ralph A. Breitenstein, Ralph Appy, Kathryn A. Hieb, Christina N. Piotrowski, and Leanne E. Elder |
| Secondary Title | Aquatic Invasions |
| Volume | 16 |
| Number | 4 |
| Pagination | p.721–749 |
| Date Published | 2021 |
| Call Number | OSU Libraries: Digital Open Access |
| Keywords | Alsea Bay, Asian mud shrimp Upogebia major, bioturbation, community ecology, Coos Bay, depleted populations, Griffen’s isopod = Orthione griffensis, introduced species, Mud shrimp = Upogebia pugettensis, natural resource management, Nestucca Bay, Netarts Bay, Upogebia macginitieorum, Yaquina Bay |
| Notes | The blue mud shrimp, Upogebia pugettensis, is known to be an ecosystem engineer, turning over and re-suspending, and aerating sediments (bioturbation), burrowing, and deposit feeding. The mud shrimp affects organic structure, nutrients, and the grain size of sediments in mudflats. Some of this activity creates difficulties for oyster growers, causing the application of pesticides in oyster growing areas in the 1950s. It may be that the changes in the ecosystem caused by introduced oysters and pesticides opened the doors for subsequent invasions. In 1999, a parasitic isopod was discovered to be infecting the native mud shrimp, and effectively sterilizing the shrimp. A related species, the Asian mud shrimp. Upogebia major, is less susceptible to the parasite, and has begun to fill in spaces formerly occupied by the blue mud shrimp. While this article is concerned with mud shrimp populations in California, the dynamics discussed are relevant to Oregon estuaries. If the ways our estuaries are engineered changes thanks to the double invasion, the way we manage our estuaries will also have to change. This is an open-access article, and it has also been re-printed as no.21-021 in the ORESU-R series. |
| URL | https://ir.library.oregonstate.edu/concern/articles/k643b826b |
| DOI | 10.3391/ai.2021.16.4.09 |
| Series Title | Aquatic invasions |
