Transport of invasive microorganisms Active
The objectives of his project are to investigate the vectors and timing of microbiological invasions and the subsequent dispersal of these non-native organisms due to sediment transport. We will attempt to confirm the identification of specific invasives encountered with molecular sequencing, monitor the spread of the invading populations through their recent distribution and the historic sedimentologic record, and document the impact of the invasions on native populations. The information we gain in this study will also aid port managers in developing plans for reducing the introduction of invasives in our nation's ports by understanding potential pathways of introductions and the temporal survival capability of these organisms during transport.
This research is part of the project, “Sediment Transport in Coastal Environments.”
Learn about all of the “Sediment Transport in Coastal Environments” research studies by choosing a title below.
Sediment Transport in Coastal Environments
Below are publications associated with this project.
Geologic history of the summit of Axial Seamount, Juan de Fuca Ridge
Anatomy of La Jolla submarine canyon system; offshore southern California
The FOBIMO (FOraminiferal BIo-MOnitoring) initiative—Towards a standardised protocol for soft-bottom benthic foraminiferal monitoring studies
Arrival and expansion of the invasive foraminifera Trochammina hadai Uchio in Padilla Bay, Washington
Paleoceanographic changes on the Farallon Escarpment off central California during the last 16,000 years
Recent introduction of the foraminifer Trochammina hadai Uchio into San Francisco Bay, California, USA
- Overview
The objectives of his project are to investigate the vectors and timing of microbiological invasions and the subsequent dispersal of these non-native organisms due to sediment transport. We will attempt to confirm the identification of specific invasives encountered with molecular sequencing, monitor the spread of the invading populations through their recent distribution and the historic sedimentologic record, and document the impact of the invasions on native populations. The information we gain in this study will also aid port managers in developing plans for reducing the introduction of invasives in our nation's ports by understanding potential pathways of introductions and the temporal survival capability of these organisms during transport.
This research is part of the project, “Sediment Transport in Coastal Environments.”
- Science
Learn about all of the “Sediment Transport in Coastal Environments” research studies by choosing a title below.
Sediment Transport in Coastal Environments
Our research goals are to provide the scientific information, knowledge, and tools required to ensure that decisions about land and resource use, management practices, and future development in the coastal zone and adjacent watersheds can be evaluated with a complete understanding of the probable effects on coastal ecosystems and communities, and a full assessment of their vulnerability to natural... - Data
- Publications
Below are publications associated with this project.
Filter Total Items: 18Geologic history of the summit of Axial Seamount, Juan de Fuca Ridge
Multibeam (1 m resolution) and side scan data collected from an autonomous underwater vehicle, and lava samples, radiocarbon-dated sediment cores, and observations of flow contacts collected by remotely operated vehicle were combined to reconstruct the geologic history and flow emplacement processes on Axial Seamount's summit and upper rift zones. The maps show 52 post-410 CE lava flows and 20 preAuthorsDavid A. Clague, Brian M Dreyer, Jennifer B. Paduan, Julie F Martin, William W Jr Chadwick, David W Caress, Ryan A Portner, Thomas P. Guilderson, Mary McGann, Hans Thomas, David A Butterfield, Robert W EmbleyAnatomy of La Jolla submarine canyon system; offshore southern California
An autonomous underwater vehicle (AUV) carrying a multibeam sonar and a chirp profiler was used to map sections of the seafloor within the La Jolla Canyon, offshore southern California, at sub-meter scales. Close-up observations and sampling were conducted during remotely operated vehicle (ROV) dives. Minisparker seismic-reflection profiles from a surface ship help to define the overall geometry oAuthorsC. K. Paull, D.W. Caress, E. Lundsten, R. Gwiazda, K. Anderson, M. McGann, J. Conrad, B. Edwards, E.J. SumnerThe FOBIMO (FOraminiferal BIo-MOnitoring) initiative—Towards a standardised protocol for soft-bottom benthic foraminiferal monitoring studies
The European Community Marine Strategy Framework Directive (MSFD) was established to provide guidelines for monitoring the quality of marine ecosystems. Monitoring the status of marine environments is traditionally based on macrofauna surveys, for which standardised methods have been established. Benthic foraminifera are also good indicators of environmental status because of their fast turnover rAuthorsJoachim Schoenfeld, Elisabeth Alve, Emmanuelle Geslin, Frans Jorissen, Sergei Korsun, Silva Spezzaferri, Sigal Abramovich, Ahuva Almogi-Labin, Eric Armynot du Chatelet, Christine Barras, Luisa Bergamin, Erica Bicchi, Vincent Bouchet, Alejandro Cearreta, Letizia Di Bella, Noortje Dijkstra, Sibelle Trevisan Disaro, Luciana Ferraro, Fabrizio Frontalini, Giordana Gennari, Elena Golikova, Kristin Haynert, Silvia Hess, Katrine Husum, Virginia Martins, Mary McGann, Shai Oron, Elena Romano, Silvia Mello Sousa, Akira TsujimotoArrival and expansion of the invasive foraminifera Trochammina hadai Uchio in Padilla Bay, Washington
Trochammina hadai Uchio, a benthic foraminifera native to Japanese estuaries, was first identified as an invasive in 1995 in San Francisco Bay and later in 16 other west coast estuaries. To investigate the timing of the arrival and expansion of this invasive species in Padilla Bay, Washington, we analyzed the distribution of foraminifera in two surface samples collected in 1971, in nine surface saAuthorsMary McGann, Eric E. Grossman, Renee K. Takesue, Dan Penttila, John P. Walsh, Reide CorbettPaleoceanographic changes on the Farallon Escarpment off central California during the last 16,000 years
New benthic and planktic foraminiferal assemblage census data and Benthic Foraminiferal Oxygen Index (BFOI) values, previously published marine climate proxy data (stable isotopes and Ca/Cd), and unpublished results of total carbon, organic carbon, and calcium carbonate analyses of sediments recovered off central California on the Farallon Escarpment (1605m water depth; 37??13.4???N, 123??14.6???WAuthorsM. McGannRecent introduction of the foraminifer Trochammina hadai Uchio into San Francisco Bay, California, USA
[No abstract available]AuthorsM. McGann, D. Sloan