Now showing items 1-10 of 1097
High concentrations and turnover rates of DMS, DMSP and DMSO in Antarctic sea ice
(American Geophysical Union, 2011-12-14)
The vast Antarctic sea-ice zone (SIZ) is a potentially significant source of the climate-active gas dimethylsulfide (DMS), yet few data are available on the concentrations and turnover rates of DMS and the related compounds ...
The genome of deep-sea vent chemolithoautotroph Thiomicrospira crunogena XCL-2
(Public Library of Science (PLoS), 2006-11-14)
Presented here is the complete genome sequence of Thiomicrospira crunogena XCL-2, representative of ubiquitous chemolithoautotrophic sulfur-oxidizing bacteria isolated from deep-sea hydrothermal vents. This gammaproteob ...
The nutritional role of endosymbiotic bacteria in animal-bacteria symbioses : Solemya velum, a case study
(Massachusetts Institute of Technology and Woods Hole Oceanographic Institution, 1990-08)
The trophie interactions occurring between endosymbiotic bacteria and the host in animal-bacteria symbioses were investigated using the endosymbiont-containing protobranch clam, Solemya velum, as a general model. C, N, ...
Growth rate and age effects on Mya arenaria shell chemistry: Implications for biogeochemical studies
(Elsevier B.V., 2008-01-30)
The chemical composition of bivalve shells can reflect that of their environment, making them useful indicators of climate, pollution, and ecosystem changes. However, biological factors can also influence chemical properties ...
Modified local sands for the mitigation of harmful algal blooms
A new method was developed for marine harmful algal bloom (HAB) mitigation using local beach sand or silica sand modified with chitosan and polyaluminum chloride (PAC). Untreated sand was ineffective in flocculating algal ...
Culture dependent and independent analyses of 16S rRNA and ATP citrate lyase genes : a comparison of microbial communities from different black smoker chimneys on the Mid-Atlantic Ridge
The bacterial and archaeal communities of three deep-sea hydrothermal vent systems located on the Mid-Atlantic Ridge (MAR; Rainbow, Logatchev and Broken Spur) were investigated using an integrated culture-dependent and ...
Sedation at sea of entangled North Atlantic right whales (Eubalaena glacialis) to enhance disentanglement
(Public Library of Science, 2010-03-09)
The objective of this study was to enhance removal of fishing gear from right whales (Eubalaena glacialis) at sea that evade disentanglement boat approaches. Titrated intra muscular injections to achieve sedation were ...
Fluxes and gas transfer rates of the biogenic trace gas DMS derived from atmospheric gradients
(American Geophysical Union, 2004-06-30)
Gas transfer rates were determined from vertical profile measurements of atmospheric dimethylsulfide (DMS) gradients over the equatorial Pacific Ocean obtained during the GasEx-2001 cruise. A quadratic relationship between ...
Sonar-induced temporary hearing loss in dolphins
There is increasing concern that human-produced ocean noise is adversely affecting marine mammals, as several recent cetacean mass strandings may have been caused by animals’ interactions with naval “mid-frequency” sonar. ...
Deep-sea mining of seafloor massive sulfides
The potential emergence of an ocean mining industry to exploit seafloor massive sulfides could present opportunities for oceanographic science to facilitate seafloor mineral development in ways that lessen environmental harms.