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Full-Text Articles in Life Sciences
Metal Reduction At Cold Temperatures By Shewanella Isolates From Various Marine Environments, Raymond D. Stapleton Jr., Zakee L. Sabree, Anthony V. Palumbo, Craig L. Moyer, Allan H. Devol, Yul Roh, Jizhong Z. Zhou
Metal Reduction At Cold Temperatures By Shewanella Isolates From Various Marine Environments, Raymond D. Stapleton Jr., Zakee L. Sabree, Anthony V. Palumbo, Craig L. Moyer, Allan H. Devol, Yul Roh, Jizhong Z. Zhou
Biology Faculty and Staff Publications
Members of the genus Shewanella capable of reducing metals and forming minerals under cold-temperature conditions were isolated from 3 distinct marine habitats (the coast of Wash- ington State, the Puget Sound, and an iron-rich microbial mat off Hawaii). Cultures of microorgan- isms were isolated at 8°C on nutrient agar medium prepared in artificial seawater. Isolates in this study could use a wide variety of electron acceptors such as oxygen, nitrate, and metals, and reduce various metals coupled to the oxidation of several organic acids, glucose or hydrogen at temperatures down to 0°C. Akaganeite was reduced to either magnetite or siderite, …
Social Interactions Between Tucuxis And Bottlenose Dolphins In Gandoca-Manzanillo, Costa Rica, Alejandro Acevedo-Gutiérrez, Ann Diberardinis, Shawn Larkin, Katrina Larkin, Paul Forestell
Social Interactions Between Tucuxis And Bottlenose Dolphins In Gandoca-Manzanillo, Costa Rica, Alejandro Acevedo-Gutiérrez, Ann Diberardinis, Shawn Larkin, Katrina Larkin, Paul Forestell
Biology Faculty and Staff Publications
Studies measuring the extent of interspecific interactions between dolphin species are rare. We observed free-ranging tucuxis (Sotalia fluviatilis) and bottlenose dolphins (Tursiops truncatus) to document the frequency of occurrence of interspecific interactions relative to group size and behavioral state. We conducted opportunistic surveys in Gandoca- Manzanillo (9º36’N, 82º35’W), Costa Rica. Of the 71 groups analyzed, 46.5% were comprised only of tucuxis, 21.1% of bottlenose dolphins, and 32.4% of the two species. Social behavior was more frequent in mixed-species groups and in groups larger than four dolphins; foraging was more frequent in single-species groups and in groups smaller than five dolphins. …