Mangrove expansion and salt marsh decline at
... is now well documented, and Rhizophora stylosa has extended its range southward, while showing strong population growth within estuaries along its southern limits in northern New South Wales. Avicennia marina has extended its range southwards in South Africa. The changes are consistent with the pole ...
... is now well documented, and Rhizophora stylosa has extended its range southward, while showing strong population growth within estuaries along its southern limits in northern New South Wales. Avicennia marina has extended its range southwards in South Africa. The changes are consistent with the pole ...
Marine snow storms: Assessing the - Research Online
... phytoplankton may boost the production of other greenhouse gases such as nitrous oxide neutralising the positive effects of enhanced carbon dioxide draw down. The sinking of phytoplankton blooms into the deep ocean may also reduce oxygen levels at these depths with adverse consequences for fisheries ...
... phytoplankton may boost the production of other greenhouse gases such as nitrous oxide neutralising the positive effects of enhanced carbon dioxide draw down. The sinking of phytoplankton blooms into the deep ocean may also reduce oxygen levels at these depths with adverse consequences for fisheries ...
4.4. Phytoplankton and primary productivity off Northwest Africa The
... daily and seasonal changes in intensity and duration. Sunlight penetrates the semi‐transparent water of the euphotic zone, generally defined as the depth where light reaches 1% of its surface value and where photosynthesis occurs. The depth of the euphotic layer varies from less th ...
... daily and seasonal changes in intensity and duration. Sunlight penetrates the semi‐transparent water of the euphotic zone, generally defined as the depth where light reaches 1% of its surface value and where photosynthesis occurs. The depth of the euphotic layer varies from less th ...
Hydrosphere (water on or near the earth) Shellfish
... This value will be variable across sites, as it depends on local tidal regimes and other environmental conditions such as predation and ambient temperatures. The tidal range in which oysters can survive is therefore best tested at specific locations. Roughly speaking, self-sustaining oyster reefs ca ...
... This value will be variable across sites, as it depends on local tidal regimes and other environmental conditions such as predation and ambient temperatures. The tidal range in which oysters can survive is therefore best tested at specific locations. Roughly speaking, self-sustaining oyster reefs ca ...
Limnol. Oceanogr., 45(2), 2000, 350–361
... biomass of smaller, edible algae but high bacterial production. At the end of the Peridinium bloom, bacterial production was high because of the considerable accumulation of organic matter derived from the dinoflagellates (Cavari et al. 1978; Berman et al. 1979; Zohary et al. 1998). During summer, n ...
... biomass of smaller, edible algae but high bacterial production. At the end of the Peridinium bloom, bacterial production was high because of the considerable accumulation of organic matter derived from the dinoflagellates (Cavari et al. 1978; Berman et al. 1979; Zohary et al. 1998). During summer, n ...
Deep ocean ventilation, carbon isotopes, marine sedimentation and
... implied changes in marine sediment formation. For this purpose, we use the global coarse-resolution 3-D Bern3D+C ocean model (Müller et al., 2006; Tschumi et al., 2008), which is coupled to a spatially-resolved dynamic model for marine sediment formation (Tschumi, 2009). This modelling framework al ...
... implied changes in marine sediment formation. For this purpose, we use the global coarse-resolution 3-D Bern3D+C ocean model (Müller et al., 2006; Tschumi et al., 2008), which is coupled to a spatially-resolved dynamic model for marine sediment formation (Tschumi, 2009). This modelling framework al ...
Session H: Ocean Salinity
... International accepted standard since 1978 NOT traceable to SI PSS-78 is limited to the salinity range 2 to 42 PSS-78 does not account for composition anomalies ...
... International accepted standard since 1978 NOT traceable to SI PSS-78 is limited to the salinity range 2 to 42 PSS-78 does not account for composition anomalies ...
the Central Equatorial Pacific West of the East Pacific Rise
... old boundary is the Mathematicians Ridge and its southward extensions near 112°W. In a comprehensive paper based on bathymetric and magnetic data, Herron (1972) has detailed the. location and history of this old plate boundary in the equatorial and South Pacific. Between 19°N and 15°N, the extinct b ...
... old boundary is the Mathematicians Ridge and its southward extensions near 112°W. In a comprehensive paper based on bathymetric and magnetic data, Herron (1972) has detailed the. location and history of this old plate boundary in the equatorial and South Pacific. Between 19°N and 15°N, the extinct b ...
3. Strategy for an Observational Network for Ocean Acidification
... scales of 10s of seconds for hydration and microseconds for acid base chemistry. Since CO2 is a weak acid, it reacts with seawater to form carbonic acid (H2CO3). A major fraction of the H2CO3 dissociates to form a hydrogen ion (H+) and a bicarbonate ion (HCO3−). A smaller portion of the H+ reacts wi ...
... scales of 10s of seconds for hydration and microseconds for acid base chemistry. Since CO2 is a weak acid, it reacts with seawater to form carbonic acid (H2CO3). A major fraction of the H2CO3 dissociates to form a hydrogen ion (H+) and a bicarbonate ion (HCO3−). A smaller portion of the H+ reacts wi ...
Is Ocean Fertilization a Good Carbon Sequestration Option?
... It is now widely accepted that phytoplankton growth is limited by the availability of iron in parts of the Equatorial Pacific and in the Southern Ocean, in effect limiting the biological assimilation of other nutrients such as nitrogen and phosphorus. However, the limitation by iron does not preclu ...
... It is now widely accepted that phytoplankton growth is limited by the availability of iron in parts of the Equatorial Pacific and in the Southern Ocean, in effect limiting the biological assimilation of other nutrients such as nitrogen and phosphorus. However, the limitation by iron does not preclu ...
Preserving a Balanced Ocean: Regulating Climate Change
... phytoplankton may boost the production of other greenhouse gases such as nitrous oxide neutralising the positive effects of enhanced carbon dioxide draw down. The sinking of phytoplankton blooms into the deep ocean may also reduce oxygen levels at these depths with adverse consequences for fisheries ...
... phytoplankton may boost the production of other greenhouse gases such as nitrous oxide neutralising the positive effects of enhanced carbon dioxide draw down. The sinking of phytoplankton blooms into the deep ocean may also reduce oxygen levels at these depths with adverse consequences for fisheries ...
seagrass syllabus - World Seagrass Association
... It is well acknowledged that the majority of the world’s coral reefs are at risk from anthropogenic (human) activities. Less well acknowledged are the global threats to seagrass meadows. Seagrass meadows are experiencing rates of loss that may be as high as seven per cent of their total global area ...
... It is well acknowledged that the majority of the world’s coral reefs are at risk from anthropogenic (human) activities. Less well acknowledged are the global threats to seagrass meadows. Seagrass meadows are experiencing rates of loss that may be as high as seven per cent of their total global area ...
Full text in pdf format
... heterotrophic component equal to or exceeding the biomass of autotrophic components) in the microbial food web of oligotrophic regions of the open ocean has been a persistent finding of all studies that have addressed this issue (Dortch & Packard 1989, Fuhrman et al. 1989, Cho & Azam 1990, Herndl 19 ...
... heterotrophic component equal to or exceeding the biomass of autotrophic components) in the microbial food web of oligotrophic regions of the open ocean has been a persistent finding of all studies that have addressed this issue (Dortch & Packard 1989, Fuhrman et al. 1989, Cho & Azam 1990, Herndl 19 ...
Chapter 8 - Great Barrier Reef Marine Park Authority
... local environment and hydrodynamic modifiers. Another highly valued ecosystem service is their role in nutrient cycling35. Tropical seagrass meadows have been documented to create habitat complexity compared with unvegetated areas – providing up to 27 times more habitable substrate115 – as well as p ...
... local environment and hydrodynamic modifiers. Another highly valued ecosystem service is their role in nutrient cycling35. Tropical seagrass meadows have been documented to create habitat complexity compared with unvegetated areas – providing up to 27 times more habitable substrate115 – as well as p ...
Third Intergovernmental Review of the Global
... Management Convention (BWM) aimed to prevent, minimize and ultimately eliminate the transfer of harmful aquatic organisms and pathogens through the control and management of ships' Ballast Water and Sediments. In October 2010, MEPC 61 approved both the "Framework for determining when a Basic Approva ...
... Management Convention (BWM) aimed to prevent, minimize and ultimately eliminate the transfer of harmful aquatic organisms and pathogens through the control and management of ships' Ballast Water and Sediments. In October 2010, MEPC 61 approved both the "Framework for determining when a Basic Approva ...
Seasonal cycles in Ningaloo seaweed meadows367.66 KB
... The Ningaloo Marine Park has an extensive network of seaweed meadows that cover up to half the total area of the lagoon. Many visitors to Ningaloo have noticed large amounts of seaweed washing ashore at certain times of the year (often during March-July), which is the result of foliose parts of the ...
... The Ningaloo Marine Park has an extensive network of seaweed meadows that cover up to half the total area of the lagoon. Many visitors to Ningaloo have noticed large amounts of seaweed washing ashore at certain times of the year (often during March-July), which is the result of foliose parts of the ...
The Marine Environment
... depositional coastal landforms, including large barrier islands, are unstable and temporary. Occasionally, major storms sweep away entire sections of barrier islands and redeposit the material elsewhere. Figure 16.11 shows the existence of South Gosier Island, a barrier island off the coast of Louis ...
... depositional coastal landforms, including large barrier islands, are unstable and temporary. Occasionally, major storms sweep away entire sections of barrier islands and redeposit the material elsewhere. Figure 16.11 shows the existence of South Gosier Island, a barrier island off the coast of Louis ...
Sensors for observing ecosystem status
... the cycles of carbon, nutrients and oxygen mediated by biotic and abiotic processes and how our activities modulate these flows. Obviously impact assessments are not limited to anthropogenic impacts, but also cover natural events and the line between these two may be fluid. When are shifting ocean c ...
... the cycles of carbon, nutrients and oxygen mediated by biotic and abiotic processes and how our activities modulate these flows. Obviously impact assessments are not limited to anthropogenic impacts, but also cover natural events and the line between these two may be fluid. When are shifting ocean c ...
The effects of winter moth defoliation on forest growth and
... Northeastern terrestrial forests have been host to many different invasive species. One of these exotic pests, the winter moth (Operophtera brumata), is native to Europe, and was identified in Massachusetts around 2003, however, there is speculation that the winter moth has been present since the 19 ...
... Northeastern terrestrial forests have been host to many different invasive species. One of these exotic pests, the winter moth (Operophtera brumata), is native to Europe, and was identified in Massachusetts around 2003, however, there is speculation that the winter moth has been present since the 19 ...
ocean fertilisation: SCIENCE aNd POLICY ISSuES
... the growth of microscopic marine plants. These plants consume carbon dioxide (CO2) during photosynthesis, so enhancing their growth would increase the ocean’s capacity to draw CO2 out of the atmosphere. Several commercial organisations are promoting ocean fertilisation as a climate mitigation strate ...
... the growth of microscopic marine plants. These plants consume carbon dioxide (CO2) during photosynthesis, so enhancing their growth would increase the ocean’s capacity to draw CO2 out of the atmosphere. Several commercial organisations are promoting ocean fertilisation as a climate mitigation strate ...
Equatorial ocean circulation in an extremely warm climate
... a markedly different seismic signature were deposited below the CCD on top of the carbonate layer. The upper surface of this reflective sediment package is thus thought to represent a facies change that may only approximate a chronostratigraphic horizon. At latitudes where the rain rate of carbonate ...
... a markedly different seismic signature were deposited below the CCD on top of the carbonate layer. The upper surface of this reflective sediment package is thus thought to represent a facies change that may only approximate a chronostratigraphic horizon. At latitudes where the rain rate of carbonate ...
16 - Glencoe
... depositional coastal landforms, including large barrier islands, are unstable and temporary. Occasionally, major storms sweep away entire sections of barrier islands and redeposit the material elsewhere. Figure 16.11 shows the existence of South Gosier Island, a barrier island off the coast of Louis ...
... depositional coastal landforms, including large barrier islands, are unstable and temporary. Occasionally, major storms sweep away entire sections of barrier islands and redeposit the material elsewhere. Figure 16.11 shows the existence of South Gosier Island, a barrier island off the coast of Louis ...
What are Phytoplankton?
... Productivity is expected to drop because as the surface waters warm, the water column becomes increasingly stratified; there is less vertical mixing to recycle nutrients from deep waters back to the surface. Over the past decade, scientists have begun looking for this trend in satellite observation ...
... Productivity is expected to drop because as the surface waters warm, the water column becomes increasingly stratified; there is less vertical mixing to recycle nutrients from deep waters back to the surface. Over the past decade, scientists have begun looking for this trend in satellite observation ...
Introducing-Ecosystems-lesson
... • Biodiversity: Variety of different species in an ecosystem. • Rainforests have the highest biodiversity. • Does our classroom have a high biodiversity? ...
... • Biodiversity: Variety of different species in an ecosystem. • Rainforests have the highest biodiversity. • Does our classroom have a high biodiversity? ...
Coastal Lagoons and Climate Change
... ABSTRACT. Lagoons are highly productive coastal features that provide a range of natural services that society values. Their setting within the coastal landscape leaves them especially vulnerable to profound physical, ecological, and associated societal disturbance from global climate change. Expect ...
... ABSTRACT. Lagoons are highly productive coastal features that provide a range of natural services that society values. Their setting within the coastal landscape leaves them especially vulnerable to profound physical, ecological, and associated societal disturbance from global climate change. Expect ...