Plankton trophodynamics at the subtropical convergence, Southern
... affected by the d15N of primary producers and their physiological status (Minagawa and Wada, 1984). As global climate change has the potential to cause major shifts in the location, strength and physical and biological properties of the STC (Bargagli, 2005), it is important that we determine the pot ...
... affected by the d15N of primary producers and their physiological status (Minagawa and Wada, 1984). As global climate change has the potential to cause major shifts in the location, strength and physical and biological properties of the STC (Bargagli, 2005), it is important that we determine the pot ...
Eddy-mediated transport of warm Circumpolar Deep Water across
... local ice shelf cavities. The observed retreat of the region’s marine-terminating glaciers has been attributed to changes in the thickness or depth of this CDW layer [Jacobs et al., 2011; Schmidtko et al., 2014]. Several recent studies have highlighted that mesoscale eddies could make an important c ...
... local ice shelf cavities. The observed retreat of the region’s marine-terminating glaciers has been attributed to changes in the thickness or depth of this CDW layer [Jacobs et al., 2011; Schmidtko et al., 2014]. Several recent studies have highlighted that mesoscale eddies could make an important c ...
Ocean Climate Indicators Status Report: 2015
... Overview Sea surface salinity values are also used as indicators of upwelling, as high sea surface salinities can be a sign of nutrient inputs from deeper waters. Two climate change-related phenomena have become issues of concern for our coastal oceans: ocean acidification and hypoxia. Rising concen ...
... Overview Sea surface salinity values are also used as indicators of upwelling, as high sea surface salinities can be a sign of nutrient inputs from deeper waters. Two climate change-related phenomena have become issues of concern for our coastal oceans: ocean acidification and hypoxia. Rising concen ...
Rhodoliths and Rhodolith Beds
... branched twigs and fans to spheres. Live individuals may be stacked a few cm deep, often grading below into dead fragments mixed with carbonate and terrigenous sediment (Figure 1). They provide hard habitat for numerous other marine algae that live on their surfaces, and for invertebrates living on ...
... branched twigs and fans to spheres. Live individuals may be stacked a few cm deep, often grading below into dead fragments mixed with carbonate and terrigenous sediment (Figure 1). They provide hard habitat for numerous other marine algae that live on their surfaces, and for invertebrates living on ...
Full-Text PDF - BioPublisher
... Water temperature is the most important environmental parameter, which affects the organisms and chemical and biological reactions in water (Salah and El-Moselhy, 2015). In the present study, the highest seawater temperature 27.5 °C was found at St 11 (Sukhna out port) during summer of 2014, while t ...
... Water temperature is the most important environmental parameter, which affects the organisms and chemical and biological reactions in water (Salah and El-Moselhy, 2015). In the present study, the highest seawater temperature 27.5 °C was found at St 11 (Sukhna out port) during summer of 2014, while t ...
The NOAA Ship Okeanos Explorer To Boldly Go…
... An essential component of NOAA’s Office of Ocean Exploration and Research mission is to enhance understanding of science, technology, engineering, and mathematics used in exploring the ocean, and build interest in careers that support ocean-related work. To help fulfill this mission, the Okeanos Exp ...
... An essential component of NOAA’s Office of Ocean Exploration and Research mission is to enhance understanding of science, technology, engineering, and mathematics used in exploring the ocean, and build interest in careers that support ocean-related work. To help fulfill this mission, the Okeanos Exp ...
Sea-floor sediments and bedforms around Turkey
... systems (Sieck and Self, 1977), which include depth sounder, side-scan sonar, and subhottom profilers (tuned transducers, electromechanical and sparker), have been extensively used in marine geophysical explorations. Dcpth sounder and subbottom profilers are designed to provide data from heneath eac ...
... systems (Sieck and Self, 1977), which include depth sounder, side-scan sonar, and subhottom profilers (tuned transducers, electromechanical and sparker), have been extensively used in marine geophysical explorations. Dcpth sounder and subbottom profilers are designed to provide data from heneath eac ...
Oceanography of the Canadian Shelf of the Beaufort Sea: A Setting
... ABSTRACT. Conservation of marine biodiversity in the Beaufort Sea demands that we understand what individual organisms require of their physical and geochemical environments in order to survive. Specifically, how do the extraordinary spatial and seasonal variations in ice cover, temperature, light, ...
... ABSTRACT. Conservation of marine biodiversity in the Beaufort Sea demands that we understand what individual organisms require of their physical and geochemical environments in order to survive. Specifically, how do the extraordinary spatial and seasonal variations in ice cover, temperature, light, ...
Chapter 2 Estimating virus production rates in aquatic systems
... Gold, DAPI, or YOPRO-1 have been used more often in estimating viral abundance most likely due to its precision, quickness and cheapness (Suttle et al. 1990; Hennes and Suttle 1995b; Noble and Fuhrman 1998a; Weinbauer 2004a; Wen et al. 2004; Sandaa and Larsen 2006). All of these dyes have been used ...
... Gold, DAPI, or YOPRO-1 have been used more often in estimating viral abundance most likely due to its precision, quickness and cheapness (Suttle et al. 1990; Hennes and Suttle 1995b; Noble and Fuhrman 1998a; Weinbauer 2004a; Wen et al. 2004; Sandaa and Larsen 2006). All of these dyes have been used ...
Pacific Islands Regional Ocean Policy
... high biological diversity that has sustained the lives of Pacific Island communities since first settlement. It contains the most extensive coral reefs in the world, globally important fisheries, significant seabed mineral resources and high number of threatened species. These ecosystems may contain ...
... high biological diversity that has sustained the lives of Pacific Island communities since first settlement. It contains the most extensive coral reefs in the world, globally important fisheries, significant seabed mineral resources and high number of threatened species. These ecosystems may contain ...
Amendment of the Water Quality Control Plan Addressing
... California Ocean Plan (Ocean Plan) that addresses marine managed areas, specifically State Water Quality Protection Areas (SWQPAs) and Marine Protected Areas (MPAs). These amendments were initiated in response to State Water Board Resolution 2010-0057 adopted November 16, 2010, and the State Water B ...
... California Ocean Plan (Ocean Plan) that addresses marine managed areas, specifically State Water Quality Protection Areas (SWQPAs) and Marine Protected Areas (MPAs). These amendments were initiated in response to State Water Board Resolution 2010-0057 adopted November 16, 2010, and the State Water B ...
The Antarctic Circumpolar Current The ACC is the world`s only
... greatly exceeded by phytoplankton production in open waters, but their ecological role is significant. They constitute an important environment that provides refuge to cells and spores that will later seed blooms in open water (Lizotte, 2001) and provide food for ice-associated grazers, such as deve ...
... greatly exceeded by phytoplankton production in open waters, but their ecological role is significant. They constitute an important environment that provides refuge to cells and spores that will later seed blooms in open water (Lizotte, 2001) and provide food for ice-associated grazers, such as deve ...
New processes and players in the nitrogen cycle: the microbial
... effectively concealed as denitrification – in other words, an even larger fraction of N loss from anoxic systems may be driven by anammox organisms. In fact, evidence for DNRA has been detected in the Benguela upwelling system (Kartal et al., 2007a), where anammox bacteria actively remove massive am ...
... effectively concealed as denitrification – in other words, an even larger fraction of N loss from anoxic systems may be driven by anammox organisms. In fact, evidence for DNRA has been detected in the Benguela upwelling system (Kartal et al., 2007a), where anammox bacteria actively remove massive am ...
New processes and players in the nitrogen cycle
... effectively concealed as denitrification – in other words, an even larger fraction of N loss from anoxic systems may be driven by anammox organisms. In fact, evidence for DNRA has been detected in the Benguela upwelling system (Kartal et al., 2007a), where anammox bacteria actively remove massive am ...
... effectively concealed as denitrification – in other words, an even larger fraction of N loss from anoxic systems may be driven by anammox organisms. In fact, evidence for DNRA has been detected in the Benguela upwelling system (Kartal et al., 2007a), where anammox bacteria actively remove massive am ...
CCAMLR - Antarctic and Southern Ocean Coalition
... that have remained free from widespread pollution, invasive species, bottom trawling or other large-scale commercial fishing operations6. With few such ecosystems remaining, scientists have a dwindling number of places where they can study how ecosystems function in the absence of large-scale human ...
... that have remained free from widespread pollution, invasive species, bottom trawling or other large-scale commercial fishing operations6. With few such ecosystems remaining, scientists have a dwindling number of places where they can study how ecosystems function in the absence of large-scale human ...
Research Article
... and distribution of meiobenthos communities in the transition zone from oxic to anoxic conditions. Meiobenthos was present at all investigated depths and included 21 taxa. (Sergeeva et al. 2013). Our present study is devoted to the futher description of taxonomic diversity of meiobenthos studied in ...
... and distribution of meiobenthos communities in the transition zone from oxic to anoxic conditions. Meiobenthos was present at all investigated depths and included 21 taxa. (Sergeeva et al. 2013). Our present study is devoted to the futher description of taxonomic diversity of meiobenthos studied in ...
Untitled - International Seabed Authority
... these resources has expanded considerably both in areas within national jurisdiction and in the international area, as a result of scientific discoveries. A significant need has been felt for further information about marine minerals, combined with the understanding of the implications of the new di ...
... these resources has expanded considerably both in areas within national jurisdiction and in the international area, as a result of scientific discoveries. A significant need has been felt for further information about marine minerals, combined with the understanding of the implications of the new di ...
Coastal Ecosystems - World Resources Report
... Earth’s ecosystems and its peoples are bound together in a grand and complex symbiosis. We depend on ecosystems to sustain us, but the continued health of ecosystems depends, in turn, on our use and care. Ecosystems are the productive engines of the planet, providing us with everything from the wate ...
... Earth’s ecosystems and its peoples are bound together in a grand and complex symbiosis. We depend on ecosystems to sustain us, but the continued health of ecosystems depends, in turn, on our use and care. Ecosystems are the productive engines of the planet, providing us with everything from the wate ...
Full text in pdf format
... be added between surface and bottom compartments 1' and i" to maintain conservativity. Modelling biogeochemical cycles. Starting with the preliminary nitrogen model of Hoch et al. (1993), a simple model of combined nitrogen and silicon cycles was set up in order to investigate some general features ...
... be added between surface and bottom compartments 1' and i" to maintain conservativity. Modelling biogeochemical cycles. Starting with the preliminary nitrogen model of Hoch et al. (1993), a simple model of combined nitrogen and silicon cycles was set up in order to investigate some general features ...
Global distribution and climate forcing of marine organic aerosol: 1
... et al., 2011). These organic aerosols have been broadly classified as primary or secondary based on chemical composition (Ceburnis et al., 2008), although this classification has recently been subjected to criticism (Rinaldi et al., 2010). Bubble bursting processes that emit sea-salt aerosols into t ...
... et al., 2011). These organic aerosols have been broadly classified as primary or secondary based on chemical composition (Ceburnis et al., 2008), although this classification has recently been subjected to criticism (Rinaldi et al., 2010). Bubble bursting processes that emit sea-salt aerosols into t ...
Workshop Report w Annexes
... Adaptation to Climate Change project and the Caribbean Large Marine Ecosystem Project, were highlighted as success cases for capacity-building • In some disciplines, such as physical oceanography and remote sensing of the ocean environment, capacity is highly aggregated in a few institutions. In oth ...
... Adaptation to Climate Change project and the Caribbean Large Marine Ecosystem Project, were highlighted as success cases for capacity-building • In some disciplines, such as physical oceanography and remote sensing of the ocean environment, capacity is highly aggregated in a few institutions. In oth ...
Reports and Monographs of the International Ocean
... including the flux upwards across the water surface. The intensity and wavelength of this flux can be measured by radiometers carried on space craft, thus providing the basis for visible spectral radiometry, also known as ocean-colour radiometry (OCR) or simply ocean colour. An important property mo ...
... including the flux upwards across the water surface. The intensity and wavelength of this flux can be measured by radiometers carried on space craft, thus providing the basis for visible spectral radiometry, also known as ocean-colour radiometry (OCR) or simply ocean colour. An important property mo ...
A.B. Roy - Indian Geophysical Union
... waves cannot travel through liquids, compressional (P) waves do. In fact, P waves, which are also generated during an earthquake process, arrive first at any location. A Tsunami is a water wave caused by a huge displacement of water in the ocean. Common examples of causes are earthquakes, landslides ...
... waves cannot travel through liquids, compressional (P) waves do. In fact, P waves, which are also generated during an earthquake process, arrive first at any location. A Tsunami is a water wave caused by a huge displacement of water in the ocean. Common examples of causes are earthquakes, landslides ...
black sea level : past, present, future
... mean global ocean level, considered as the surface of the geoid. This level is not idle and is constantly changing under the action of various forces, diverging from the geoid. The Black Sea level is affected by factors leading to change in the volume of water. The eustatic factors leading to variat ...
... mean global ocean level, considered as the surface of the geoid. This level is not idle and is constantly changing under the action of various forces, diverging from the geoid. The Black Sea level is affected by factors leading to change in the volume of water. The eustatic factors leading to variat ...
Odor tracking in sharks is reduced under future ocean acidification conditions
... Gruber, 2005) in elasmobranchs. Olfaction is considered especially important as a distant sense because chemical signals can become entrained in currents and transported much further in the marine environment than visual, mechanical, or electrical signals (Atema, 2012). This enables elasmobranchs to ...
... Gruber, 2005) in elasmobranchs. Olfaction is considered especially important as a distant sense because chemical signals can become entrained in currents and transported much further in the marine environment than visual, mechanical, or electrical signals (Atema, 2012). This enables elasmobranchs to ...
Marine pollution
Marine pollution occurs when harmful, or potentially harmful, effects result from the entry into the ocean of chemicals, particles, industrial, agricultural and residential waste, noise, or the spread of invasive organisms. Most sources of marine pollution are land based. The pollution often comes from nonpoint sources such as agricultural runoff, wind-blown debris and dust. Nutrient pollution, a form of water pollution, refers to contamination by excessive inputs of nutrients. It is a primary cause of eutrophication of surface waters, in which excess nutrients, usually nitrogen or phosphorus, stimulate algae growth.Many potentially toxic chemicals adhere to tiny particles which are then taken up by plankton and benthos animals, most of which are either deposit or filter feeders. In this way, the toxins are concentrated upward within ocean food chains. Many particles combine chemically in a manner highly depletive of oxygen, causing estuaries to become anoxic.When pesticides are incorporated into the marine ecosystem, they quickly become absorbed into marine food webs. Once in the food webs, these pesticides can cause mutations, as well as diseases, which can be harmful to humans as well as the entire food web.Toxic metals can also be introduced into marine food webs. These can cause a change to tissue matter, biochemistry, behaviour, reproduction, and suppress growth in marine life. Also, many animal feeds have a high fish meal or fish hydrolysate content. In this way, marine toxins can be transferred to land animals, and appear later in meat and dairy products.