Stable Isotope Methods for the Study of the Nitrogen Cycle
... fine-tuning and careful attention to leaks in order to process samples containing less than a few micromoles of nitrogen. In practice, open ocean samples including suspended particles, small zooplankton, and sinking organic matter are often available only in µmole or sub-µmole quantities. These low ...
... fine-tuning and careful attention to leaks in order to process samples containing less than a few micromoles of nitrogen. In practice, open ocean samples including suspended particles, small zooplankton, and sinking organic matter are often available only in µmole or sub-µmole quantities. These low ...
OFR 89-92
... disposal alternatives and sites. These analyses require knowledge of many factors about an area, such as the geology, hydrogeology, seismic potential, and drainage basin characteristics. Extensive research is underway in the United States and Canada on the best way to design for long term disposal o ...
... disposal alternatives and sites. These analyses require knowledge of many factors about an area, such as the geology, hydrogeology, seismic potential, and drainage basin characteristics. Extensive research is underway in the United States and Canada on the best way to design for long term disposal o ...
Elsevier Editorial System(tm) for Journal of Marine
... glaciers constitute a substantial part of the Hornsund coastline (Błaszczyk et al., 2013). These ...
... glaciers constitute a substantial part of the Hornsund coastline (Błaszczyk et al., 2013). These ...
Scotian Shelf in Context
... volume of water in the ocean and changes caused by the sinking or rising of land. Changes in the volume of water may be due to rising or lowering of temperatures, leading to the thermal expansion or contraction of water, as well as changes in the amount of water stored in polar ice and on land in gl ...
... volume of water in the ocean and changes caused by the sinking or rising of land. Changes in the volume of water may be due to rising or lowering of temperatures, leading to the thermal expansion or contraction of water, as well as changes in the amount of water stored in polar ice and on land in gl ...
MBI1500173_PRF_EB
... components of the structure and dynamics of the oceans and thus sustain the benefits that humans obtain from these aquatic environments. However, some microalgal blooms can cause harm to humans and other organisms. These harmful algal blooms (HABs) have direct impacts on human health and negative infl ...
... components of the structure and dynamics of the oceans and thus sustain the benefits that humans obtain from these aquatic environments. However, some microalgal blooms can cause harm to humans and other organisms. These harmful algal blooms (HABs) have direct impacts on human health and negative infl ...
Initial Assessment Report
... strongly as we take forward transboundary MSP in the Irish Sea area. Without prejudice to the exploration of all these activities it was viewed by some participants that some activities may feature more prominently than others when considered in the context of their influence on other activities and ...
... strongly as we take forward transboundary MSP in the Irish Sea area. Without prejudice to the exploration of all these activities it was viewed by some participants that some activities may feature more prominently than others when considered in the context of their influence on other activities and ...
Report of the Joint OSPAR/ICES Ocean Acidification Study Group
... The meeting consisted of formal presentations and discussions of each ToR documented by a rapporteur and summarized in this report. Summaries of national and international monitoring programmes on ocean acidification (OA) were provided by the membership. It is clear that there are many OA-relevant c ...
... The meeting consisted of formal presentations and discussions of each ToR documented by a rapporteur and summarized in this report. Summaries of national and international monitoring programmes on ocean acidification (OA) were provided by the membership. It is clear that there are many OA-relevant c ...
1994 Annual Report - Woods Hole Oceanographic Institution
... with locally caught decapod shrimp, and at sea on the decks of R/V Oceanus and R/V Endeavor (University of Rhode Island) with animals caught over or near Georges Bank. The experiments were funded by the Office of Naval Research, the National Science Foundation, and the Office of Naval Technology. An ...
... with locally caught decapod shrimp, and at sea on the decks of R/V Oceanus and R/V Endeavor (University of Rhode Island) with animals caught over or near Georges Bank. The experiments were funded by the Office of Naval Research, the National Science Foundation, and the Office of Naval Technology. An ...
Marine Growth Mapping and Monitoring
... quantitative biological datasets relevant to biofouling communities, which will be necessary for both development and validation of any predictive relationships. In response, it is recommended that an industry-specific protocol for collecting information about biofouling be developed, alongside a ce ...
... quantitative biological datasets relevant to biofouling communities, which will be necessary for both development and validation of any predictive relationships. In response, it is recommended that an industry-specific protocol for collecting information about biofouling be developed, alongside a ce ...
Key Drivers of Seasonal Plankton Dynamics in Cyclonic and
... and OSTM/Jason-2), remotely sensed ocean color (GlobColour) and in situ profiles of temperature, salinity and pressure from Argo floats. Using the CE and ACE seasonal climatologies, we assimilate the surface chlorophyll-a data into both a single (WOMBAT), and multi-phytoplankton class (EMS) biogeoch ...
... and OSTM/Jason-2), remotely sensed ocean color (GlobColour) and in situ profiles of temperature, salinity and pressure from Argo floats. Using the CE and ACE seasonal climatologies, we assimilate the surface chlorophyll-a data into both a single (WOMBAT), and multi-phytoplankton class (EMS) biogeoch ...
Nutrient gradients in the western North Atlantic Ocean
... Studies of nitrogen and phosphorus dynamics in the oligotrophic surface waters of the western North Atlantic Ocean have been constrained because ambient concentrations are typically at or below the detection limits of standard colorometric methods, except during periods of deep vertical mixing. Here ...
... Studies of nitrogen and phosphorus dynamics in the oligotrophic surface waters of the western North Atlantic Ocean have been constrained because ambient concentrations are typically at or below the detection limits of standard colorometric methods, except during periods of deep vertical mixing. Here ...
Radiozoa (Acantharia, Phaeodaria and Radiolaria) and Heliozoa
... resistant even than in silicoflagellates and diatoms, although all are susceptible to dissolution because sea water is very undersaturated relative to silica. Below the calcium carbonate compensation depth (usually 3000–5000 m) nearly all CaCO3 enters into solution so that siliceous radiolarian or d ...
... resistant even than in silicoflagellates and diatoms, although all are susceptible to dissolution because sea water is very undersaturated relative to silica. Below the calcium carbonate compensation depth (usually 3000–5000 m) nearly all CaCO3 enters into solution so that siliceous radiolarian or d ...
Distribution of free-living and particle
... Little is known about the distribution and physiology of marine AAP bacteria. Originally it was suggested that they would be abundant in oligotrophic environments, where the capacity to use light might represent a significant ecological advantage (Kolber et al. 2001). Later, AAP bacteria were also f ...
... Little is known about the distribution and physiology of marine AAP bacteria. Originally it was suggested that they would be abundant in oligotrophic environments, where the capacity to use light might represent a significant ecological advantage (Kolber et al. 2001). Later, AAP bacteria were also f ...
Inorganic Carbon-Assimilating Microbial Communities in the Pacific
... Figure 3.3 The highest SUP05 mean 16S rDNA copy number/ml observed during this study are plotted by location and average dissovled oxygen at bottom depth. SUP05 maximums range from 103 to 107 and were mostly observed in summer samples. ......................................................... 84 Fig ...
... Figure 3.3 The highest SUP05 mean 16S rDNA copy number/ml observed during this study are plotted by location and average dissovled oxygen at bottom depth. SUP05 maximums range from 103 to 107 and were mostly observed in summer samples. ......................................................... 84 Fig ...
Nitrogen isotopes in bulk marine sediment: linking seafloor
... therein; second, to use the database in order to evaluate the degree to which downcore sedimentary δ 15 N records reflect the δ 15 N of nearby core-top data, through a spatial comparison with neighbouring observations and a temporal comparison with observations throughout the Late Pleistocene. This ...
... therein; second, to use the database in order to evaluate the degree to which downcore sedimentary δ 15 N records reflect the δ 15 N of nearby core-top data, through a spatial comparison with neighbouring observations and a temporal comparison with observations throughout the Late Pleistocene. This ...
FINAL DRAFT IPCC WGII AR5 Chapter 6 Subject to Final Copyedit 1
... The oceans cover about 71% of Earth’s surface to an average depth of 3,700 m. Their importance for life on Earth, including humans, is vast (FAQ 6.1). Marine habitats display natural variability on various spatial and temporal scales but a dearth of long-term observational data from the vast open oc ...
... The oceans cover about 71% of Earth’s surface to an average depth of 3,700 m. Their importance for life on Earth, including humans, is vast (FAQ 6.1). Marine habitats display natural variability on various spatial and temporal scales but a dearth of long-term observational data from the vast open oc ...
GLOBAL OCEAN ECOSYSTEM DYNAMICS GLOBEC Special
... PREFACE This report describes the current status, in July 2004, of the implementation activities of the Global Ocean Ecosystem Dynamics (GLOBEC) programme element of the International GeosphereBiosphere Programme (IGBP). GLOBEC is co-sponsored by the Scientific Committee on Oceanic Research (SCOR) ...
... PREFACE This report describes the current status, in July 2004, of the implementation activities of the Global Ocean Ecosystem Dynamics (GLOBEC) programme element of the International GeosphereBiosphere Programme (IGBP). GLOBEC is co-sponsored by the Scientific Committee on Oceanic Research (SCOR) ...
Oceanography 1 Workbook Instructor: Katryn Wiese - FOG
... Community – This class is a community. We all have the same objective: to learn. Learning happens more fully when you have to explain the new things you learn with others, when you discuss the new content with others. To make that happen, be sure to engage with your fellow students and bring with yo ...
... Community – This class is a community. We all have the same objective: to learn. Learning happens more fully when you have to explain the new things you learn with others, when you discuss the new content with others. To make that happen, be sure to engage with your fellow students and bring with yo ...
The status of natural resources on the high-seas
... Approximately 50% of the Earth’s surface is occupied by High-Seas areas – open ocean and deepsea environments lying beyond the 200 nautical mile limit of the Exclusive Economic Zones of coastal states. These high-seas areas are open-access common resources, and as such may be particularly susceptibl ...
... Approximately 50% of the Earth’s surface is occupied by High-Seas areas – open ocean and deepsea environments lying beyond the 200 nautical mile limit of the Exclusive Economic Zones of coastal states. These high-seas areas are open-access common resources, and as such may be particularly susceptibl ...
1999 Ecology 80.1157.. - Iowa State University
... Taylor et al. 1995). Although most nutrient-addition experiments in oceans have been directed toward the study of nitrogen (Capone and Carpenter 1982), it is clear that nitrogen is not always limiting in the ocean. Enrichments of phosphorus, iron, and silica have also been shown to induce significan ...
... Taylor et al. 1995). Although most nutrient-addition experiments in oceans have been directed toward the study of nitrogen (Capone and Carpenter 1982), it is clear that nitrogen is not always limiting in the ocean. Enrichments of phosphorus, iron, and silica have also been shown to induce significan ...
Biodiversity Series Background Document for Loggerhead turtle
... during or following periods of stormy weather. Both French and English researchers have noted that, when loggerhead turtles over 30 cm carapace width are stranded, the majority had their swimming ability impaired due to lesions and amputations resulting from either predation or entanglement with dif ...
... during or following periods of stormy weather. Both French and English researchers have noted that, when loggerhead turtles over 30 cm carapace width are stranded, the majority had their swimming ability impaired due to lesions and amputations resulting from either predation or entanglement with dif ...
Ch. 16 Marine and Coastal Systems: Resources, Impacts, and
... dumped trash and untreated sewage along their shores ...
... dumped trash and untreated sewage along their shores ...
briefing note - Save Bantry Bay
... limit in 25% of salmon farms over the last three years. The number of sites with lice levels above the TTL in two-winter salmon farms has risen continually over the last three years from 24% to 40% to 50% in 2011. Recently published large scale Norwegian research study noted that ‘increased interven ...
... limit in 25% of salmon farms over the last three years. The number of sites with lice levels above the TTL in two-winter salmon farms has risen continually over the last three years from 24% to 40% to 50% in 2011. Recently published large scale Norwegian research study noted that ‘increased interven ...
Deep Sea Genetic Resources in the Context of the Convention on
... Unusual symbioses between invertebrates and chemolithautotrophic bacteria are producing concentrations of biomass at hydrothermal vent sites that is similar to the most productive ecosystems on Earth. The existence of chemoautotrophic and hyperthermophilic microbes in the hydrothermal waters has pro ...
... Unusual symbioses between invertebrates and chemolithautotrophic bacteria are producing concentrations of biomass at hydrothermal vent sites that is similar to the most productive ecosystems on Earth. The existence of chemoautotrophic and hyperthermophilic microbes in the hydrothermal waters has pro ...
Marine debris
Marine debris, also known as marine litter, is human-created waste that has deliberately or accidentally been released in a lake, sea, ocean or waterway. Floating oceanic debris tends to accumulate at the centre of gyres and on coastlines, frequently washing aground, when it is known as beach litter or tidewrack. Deliberate disposal of wastes at sea is called ocean dumping. Naturally occurring debris, such as driftwood, are also present.With the increasing use of plastic, human influence has become an issue as many types of plastics do not biodegrade. Waterborne plastic poses a serious threat to fish, seabirds, marine reptiles, and marine mammals, as well as to boats and coasts. Dumping, container spillages, litter washed into storm drains and waterways and wind-blown landfill waste all contribute to this problem.