Quantifying the Cenozoic marine diatom
... southern high latitude, with, for the first time in the Cenozoic, a higher abundance in all three sectors of the Southern Ocean (Fig. 4), hinting at a circum-Antarctic accumulation belt. During the early Miocene, diatom abundance in sediments was somewhat lower, with, for the first time, some loci o ...
... southern high latitude, with, for the first time in the Cenozoic, a higher abundance in all three sectors of the Southern Ocean (Fig. 4), hinting at a circum-Antarctic accumulation belt. During the early Miocene, diatom abundance in sediments was somewhat lower, with, for the first time, some loci o ...
Environmental Science & Technology
... Figure 1: March 2003 and June 2004 salinity, nitrate, ammonium and phosphate concentrations across the Waquoit Bay subterranean estuary. During the summer of 2004, the salinity interface was further offshore and the nitrate plume had higher concentrations than in March 2003. The marine groundwater p ...
... Figure 1: March 2003 and June 2004 salinity, nitrate, ammonium and phosphate concentrations across the Waquoit Bay subterranean estuary. During the summer of 2004, the salinity interface was further offshore and the nitrate plume had higher concentrations than in March 2003. The marine groundwater p ...
Ecosystems and Biomes
... Secondary succession is the series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist. ...
... Secondary succession is the series of changes that occur in an area where the ecosystem has been disturbed, but where soil and organisms still exist. ...
Response to EPA Notice of Call for Public Comment on 303(d) Program and Ocean Acidification from the Ocean Carbon and
... provide the datasets needed to assess whether acidification is affecting a particular region (NRC, 2010). Then, information about the diverse biological responses to increased water CO2, decreased pH, CO32-, and the saturation state of aragonite (Ωar), a biologically important calcium carbonate mine ...
... provide the datasets needed to assess whether acidification is affecting a particular region (NRC, 2010). Then, information about the diverse biological responses to increased water CO2, decreased pH, CO32-, and the saturation state of aragonite (Ωar), a biologically important calcium carbonate mine ...
Energy flow of a boreal intertidal ecosystem, the Sylt
... cycles. The cycling network indicated that about 99% of the recycling involves 2 to 3 compartments, with sediment bacteria and particulate organic carbon (POC) participating in most instances. Input/output analyses indicated that phytoplankton production in the Bight does not satisfy the demands of ...
... cycles. The cycling network indicated that about 99% of the recycling involves 2 to 3 compartments, with sediment bacteria and particulate organic carbon (POC) participating in most instances. Input/output analyses indicated that phytoplankton production in the Bight does not satisfy the demands of ...
1. Introduction, Objectives, and Principal Results, Leg 112, Peru
... Both the rapid vertical motion of forearc basins and the influx of biogenic matter from coastal upwelling mixed with terrigenous material generate an extreme range of chemical and sedimentological conditions that affect diagenesis. These conditions are dominated by microbially mediated decomposition ...
... Both the rapid vertical motion of forearc basins and the influx of biogenic matter from coastal upwelling mixed with terrigenous material generate an extreme range of chemical and sedimentological conditions that affect diagenesis. These conditions are dominated by microbially mediated decomposition ...
Towards a framework for assessment and management of
... limited available information. The majority of food web components were most vulnerable to broad-scale irreversible coastal construction, such as ports, except for carnivores and omnivores and high-level predators. Carnivores and omnivores and ...
... limited available information. The majority of food web components were most vulnerable to broad-scale irreversible coastal construction, such as ports, except for carnivores and omnivores and high-level predators. Carnivores and omnivores and ...
BASIN PROGRAM IMPLEMENTATION PLAN OUTLINE
... The challenge of BASIN is to develop the predictive capability necessary to understand the space and time variation of (i) biogeochemical processes determining productivity and carbon fluxes, (ii) broadly distributed and dominant members of the North Atlantic plankton and fish communities, and (iii) ...
... The challenge of BASIN is to develop the predictive capability necessary to understand the space and time variation of (i) biogeochemical processes determining productivity and carbon fluxes, (ii) broadly distributed and dominant members of the North Atlantic plankton and fish communities, and (iii) ...
Chapter 13 Next Generation Sunshine State Standards
... average depth of the oceans is nearly four and a half times this amount—3,729 meters (12,234 feet). The volume of ocean water is so large that if Earth’s solid mass were perfectly smooth (level) and spherical, the oceans would cover Earth’s entire surface to a uniform depth of more than 2,000 meters ...
... average depth of the oceans is nearly four and a half times this amount—3,729 meters (12,234 feet). The volume of ocean water is so large that if Earth’s solid mass were perfectly smooth (level) and spherical, the oceans would cover Earth’s entire surface to a uniform depth of more than 2,000 meters ...
Platinum-group elements (PGE) and rhenium in marine sediments
... Abstract—The nature of Re–platinum-group element (PGE; Pt, Pd, Ir, Os, Ru) transport in the marine environment was investigated by means of marine sediments at and across the Cretaceous–Tertiary boundary (KTB) at two hemipelagic sites in Europe and two pelagic sites in the North and South Pacific. A ...
... Abstract—The nature of Re–platinum-group element (PGE; Pt, Pd, Ir, Os, Ru) transport in the marine environment was investigated by means of marine sediments at and across the Cretaceous–Tertiary boundary (KTB) at two hemipelagic sites in Europe and two pelagic sites in the North and South Pacific. A ...
The Marine Environment and the Role of Fungi
... production take place in the offshore pelagic realm (Fig. 2.3). • About 88% of herbivores depend upon oceanically produced NPP. This amounts to approximately 25.0 106 Pg C consumed by herbivores in the entire marine environment. • Oceanic waters contribute nearly 26.0% of all oceanically produced ...
... production take place in the offshore pelagic realm (Fig. 2.3). • About 88% of herbivores depend upon oceanically produced NPP. This amounts to approximately 25.0 106 Pg C consumed by herbivores in the entire marine environment. • Oceanic waters contribute nearly 26.0% of all oceanically produced ...
Article
... resource distribution, rendering certain zones much more prone to predation than others. In terrestrial ecosystems, for example, many woodland bird assemblages can suffer major declines as forest areas decrease and fragment, exposing birds to predator incursion [48,49]. Similarly, dense patchy fragm ...
... resource distribution, rendering certain zones much more prone to predation than others. In terrestrial ecosystems, for example, many woodland bird assemblages can suffer major declines as forest areas decrease and fragment, exposing birds to predator incursion [48,49]. Similarly, dense patchy fragm ...
Conceptual Ecological Modelling of Shallow Sublittoral Sand
... A model hierarchy was developed based on groups of fauna with similar species traits which aligned with previous sensitivity studies of ecological groups. A general model was produced to indicate the high level drivers, inputs, biological assemblages, ecosystem processes and outputs which occur in s ...
... A model hierarchy was developed based on groups of fauna with similar species traits which aligned with previous sensitivity studies of ecological groups. A general model was produced to indicate the high level drivers, inputs, biological assemblages, ecosystem processes and outputs which occur in s ...
1 Supporting Information for the Dissolved Inorganic Nitrogen Mass
... ammonium. A concentration gradient is set up between surficial benthic sediment and the overlying water column (bottom water), with higher concentrations in the surficial sediment relative to the bottom water. Thus, a benthic flux (BF) is established whereby ammonium is transferred from the benthic ...
... ammonium. A concentration gradient is set up between surficial benthic sediment and the overlying water column (bottom water), with higher concentrations in the surficial sediment relative to the bottom water. Thus, a benthic flux (BF) is established whereby ammonium is transferred from the benthic ...
Chapter B4 - Marine Sediment Quality
... Being located within a heavily urbanised catchment, the system is likely exposed to a range of nutrient and pollutant inputs associated with adjacent and upstream agricultural, residential, commercial and industrial land uses as well as waste water treatment plant inputs. Carter et al. (2002) noted ...
... Being located within a heavily urbanised catchment, the system is likely exposed to a range of nutrient and pollutant inputs associated with adjacent and upstream agricultural, residential, commercial and industrial land uses as well as waste water treatment plant inputs. Carter et al. (2002) noted ...
ODP Greatest Hits
... gas (methane) are frozen within deep-sea marine sediments as gas hydrates and now we’ve discovered that there is enough locked ...
... gas (methane) are frozen within deep-sea marine sediments as gas hydrates and now we’ve discovered that there is enough locked ...
North Atlantic and Arctic Region, Working Group 2
... but a small part in the national economy although fisheries have economic importance in local areas. Fishing activities in this area are not only carried out by coastal countries but also international fleets especially in the high seas. ...
... but a small part in the national economy although fisheries have economic importance in local areas. Fishing activities in this area are not only carried out by coastal countries but also international fleets especially in the high seas. ...
Future of the Ocean and its Seas: a non
... On behalf of the international community of marine researchers represented through our affiliations, we greatly welcome the attention being given by G7 Ministers of Science to ‘the future of the seas and oceans’, arising from their meeting in Berlin, 8-9 October 2015. Such a focus is timely and full ...
... On behalf of the international community of marine researchers represented through our affiliations, we greatly welcome the attention being given by G7 Ministers of Science to ‘the future of the seas and oceans’, arising from their meeting in Berlin, 8-9 October 2015. Such a focus is timely and full ...
Composition and degradation of organic matter in sediments from
... coastal upwelling areas, were major contributors to sedimentary OM. Bacteria could be identified as an important source of sedimentary OM. In sediments off Chile, bacterial specific fatty acids (iso- and anteiso C14-C17) accounted for 12-34% of all identified fatty acids. Highest percentages were ob ...
... coastal upwelling areas, were major contributors to sedimentary OM. Bacteria could be identified as an important source of sedimentary OM. In sediments off Chile, bacterial specific fatty acids (iso- and anteiso C14-C17) accounted for 12-34% of all identified fatty acids. Highest percentages were ob ...
Mapping and classifying the seabed of West Greenland
... Seabed habitats are a crucial part of marine ecosystems. The deep-sea habitats are rich in biodiversity and host many widespread and economically important species (Costello et al. 2010, Rex and Etter 2010). However, deep-sea benthic habitats are still poorly studied with only 5-10% of deep-seabed h ...
... Seabed habitats are a crucial part of marine ecosystems. The deep-sea habitats are rich in biodiversity and host many widespread and economically important species (Costello et al. 2010, Rex and Etter 2010). However, deep-sea benthic habitats are still poorly studied with only 5-10% of deep-seabed h ...
mangrove ecology
... ecosystem through the transfer of food energy from one trophic level to another. The first trophic level (the producer level) is comprised of green plants; the second trophic level (primary consumer level) is comprised of herbivores (plant-eaters); the third trophic level (secondary consumer level) ...
... ecosystem through the transfer of food energy from one trophic level to another. The first trophic level (the producer level) is comprised of green plants; the second trophic level (primary consumer level) is comprised of herbivores (plant-eaters); the third trophic level (secondary consumer level) ...
Second
U.S.
Ocean
Acidification
Principal
Investigators'
Meeting
Gallaudet
University's
Kellogg
Conference
Center,
Washington,
DC
... estimated $1.9 trillion per year. Their high rates of carbon assimilation may reduce local pCO2 levels by >50% during daytime. As a result seagrasses sequester “blue carbon”, storing as much as 19.9 Pg of organic carbon in the form of anaerobic, organic‐rich loams. They are responsible for an ...
... estimated $1.9 trillion per year. Their high rates of carbon assimilation may reduce local pCO2 levels by >50% during daytime. As a result seagrasses sequester “blue carbon”, storing as much as 19.9 Pg of organic carbon in the form of anaerobic, organic‐rich loams. They are responsible for an ...
Services from the deep Steps towards valuation of deep sea goods
... environment. Other frameworks however do make some recognition of abiotic factors, with CICES (Haines-Young et al., 2009a) for example identifying abiotic materials and renewable abiotic energy sources (e.g. wind and wave power), but not including a category for fossil fuels. Swedish EPA (Anon., 200 ...
... environment. Other frameworks however do make some recognition of abiotic factors, with CICES (Haines-Young et al., 2009a) for example identifying abiotic materials and renewable abiotic energy sources (e.g. wind and wave power), but not including a category for fossil fuels. Swedish EPA (Anon., 200 ...
Chapter 5 - The World of the Census
... Continental margin heterogeneity in images: (A) assemblages of mytilids, vesicomyids, and siboglinid tube-worms in a giant pockmark in the Gulf of Guinea (3,200 m depth) (copyright Ifremer, Biozaïre 2 cruise, 2002); (B) authigenic carbonates associated with a hydrocarbon seep are colonized by corals ...
... Continental margin heterogeneity in images: (A) assemblages of mytilids, vesicomyids, and siboglinid tube-worms in a giant pockmark in the Gulf of Guinea (3,200 m depth) (copyright Ifremer, Biozaïre 2 cruise, 2002); (B) authigenic carbonates associated with a hydrocarbon seep are colonized by corals ...
Landscape and smaller-scale effects of lugworm
... answer has usually been “no” for deposit-feeding macrofauna (Bianchi and Levinton, 1981; Kemp, 1987; 1990), and also for meiofauna (Kemp, 1990; Epstein and Shiaris, 1992), and protozoa (Epstein and Shiaris, 1992; Epstein, 1997). Rather, the high diversity (Gray and Herwig, 1996; Scala and Kerkhof, 2 ...
... answer has usually been “no” for deposit-feeding macrofauna (Bianchi and Levinton, 1981; Kemp, 1987; 1990), and also for meiofauna (Kemp, 1990; Epstein and Shiaris, 1992), and protozoa (Epstein and Shiaris, 1992; Epstein, 1997). Rather, the high diversity (Gray and Herwig, 1996; Scala and Kerkhof, 2 ...