MaRine HabitatS and CoMMunitieS
... by gear type. There are also many different types and sizes of fishing vessels, from small vessels used in coastal lobster fisheries to very large vessels used in offshore scallop and groundfish fisheries (DFO 2005a). Fishing has direct and indirect effects on habitat and on the diversity, structure ...
... by gear type. There are also many different types and sizes of fishing vessels, from small vessels used in coastal lobster fisheries to very large vessels used in offshore scallop and groundfish fisheries (DFO 2005a). Fishing has direct and indirect effects on habitat and on the diversity, structure ...
SCRS/2014/176
... Gulf of Mexico, or the Florida Straits, and advected northward by the Gulf Stream. They also note that the current circulation east and north of the Bahamas is complicated, and could act to retain larvae as does the western Gulf of Mexico. This survey was limited in the area of the Bahamas and did ...
... Gulf of Mexico, or the Florida Straits, and advected northward by the Gulf Stream. They also note that the current circulation east and north of the Bahamas is complicated, and could act to retain larvae as does the western Gulf of Mexico. This survey was limited in the area of the Bahamas and did ...
Patterns of life on the southern Mid-Atlantic Ridge
... Novel biological data have been produced from the recently discovered MAR hydrothermal vent sites 3–7° south of the equator, the hottest reported to date, with temperatures up to 407°C (Devey et al., 2005; Koschinsky et al., 2006; German et al., 2008). A detailed taxonomic description of most groups ...
... Novel biological data have been produced from the recently discovered MAR hydrothermal vent sites 3–7° south of the equator, the hottest reported to date, with temperatures up to 407°C (Devey et al., 2005; Koschinsky et al., 2006; German et al., 2008). A detailed taxonomic description of most groups ...
The status of natural resources on the high-seas
... has a greater biodiversity than any other environment, of all the Earth’s currently known animal species (ca. 2 million), less than one quarter come from the ocean. A detailed study of animals on the deep-sea floor off the eastern United States (xi) led to predictions that the global deep-sea floor ...
... has a greater biodiversity than any other environment, of all the Earth’s currently known animal species (ca. 2 million), less than one quarter come from the ocean. A detailed study of animals on the deep-sea floor off the eastern United States (xi) led to predictions that the global deep-sea floor ...
Three-year investigations into sperm whale
... Problem The first discovery of a whale-fall in situ occurred in 1987 in the Santa Catalina Basin, California at a depth of 1240 m (Smith et al. 1989). A large chemosynthetic assemblage was reported around the whale carcasses (Smith et al. 1989), with similarities to hydrothermal vent and cold-seep c ...
... Problem The first discovery of a whale-fall in situ occurred in 1987 in the Santa Catalina Basin, California at a depth of 1240 m (Smith et al. 1989). A large chemosynthetic assemblage was reported around the whale carcasses (Smith et al. 1989), with similarities to hydrothermal vent and cold-seep c ...
Deep Water Corals - Department of Geology UPRM
... these areas. In addition, the Lophelia of the Darwin Mounds are growing on sand rather than hard substrate, an unusual condition unique to this area. Usually, coral larvae almost always settle and grow on hard substrates, such as dead coral skeletons or rock. Lophelia corals exist in Irish waters as ...
... these areas. In addition, the Lophelia of the Darwin Mounds are growing on sand rather than hard substrate, an unusual condition unique to this area. Usually, coral larvae almost always settle and grow on hard substrates, such as dead coral skeletons or rock. Lophelia corals exist in Irish waters as ...
DEEP SEA CORALS
... Lophelia is a reef-forming coral that provides a highly complex habitat supporting as diverse an array of life as some shallow water reef communities.5 It is found in every ocean except in the Polar Regions. Most Lophelia reefs are found at depths of 650-3,300 feet, though the deepest so far discove ...
... Lophelia is a reef-forming coral that provides a highly complex habitat supporting as diverse an array of life as some shallow water reef communities.5 It is found in every ocean except in the Polar Regions. Most Lophelia reefs are found at depths of 650-3,300 feet, though the deepest so far discove ...
Fast and slow spreading ridges - Archimer
... Different parts of the world ridge system have quite different morphologies, which reflect different constructional processes. It appears that hydrothermal circulation at all spreading centers is an important exchange process between the ocean and the newly formed oceanic crust. This hydrothermal ci ...
... Different parts of the world ridge system have quite different morphologies, which reflect different constructional processes. It appears that hydrothermal circulation at all spreading centers is an important exchange process between the ocean and the newly formed oceanic crust. This hydrothermal ci ...
CAGE Annual Report 2014 - Centre for Arctic Gas Hydrate
... Sea over the last 50 years. The hydrate stability zone thickness is highly sensitive to the gas composition and the geothermal gradient, and show very high local variability. Ocean warming primarily affects hydrate stability most likely only in the upper few tens of meters of sediments. Our results ...
... Sea over the last 50 years. The hydrate stability zone thickness is highly sensitive to the gas composition and the geothermal gradient, and show very high local variability. Ocean warming primarily affects hydrate stability most likely only in the upper few tens of meters of sediments. Our results ...
Bagby CV website - Valentine Lab - University of California, Santa
... was awarded (to SC Bagby) but could not be accepted in conjunction with the HHMI fellowship. 2000–2002 BA(Hons), Physiological Sciences Corpus Christi College, Oxford University Funded by the Marshall Scholarship (to SC Bagby) 1996–2000 BS, Biological Chemistry (special honors); BA, Chemistry; BA, P ...
... was awarded (to SC Bagby) but could not be accepted in conjunction with the HHMI fellowship. 2000–2002 BA(Hons), Physiological Sciences Corpus Christi College, Oxford University Funded by the Marshall Scholarship (to SC Bagby) 1996–2000 BS, Biological Chemistry (special honors); BA, Chemistry; BA, P ...
Deep-Sea Life
... Rachel M. Jeffreys, Elizabeth H. Fisher, Andrew J. Gooday, Kate E. Larkin, David S. M. Billett, and George A. Wolff (2015) Biogeosciences 12: 1781-1797 The Arabian Sea is a region of elevated productivity with the highest globally recorded fluxes of particulate organic matter (POM) to the deep ocean ...
... Rachel M. Jeffreys, Elizabeth H. Fisher, Andrew J. Gooday, Kate E. Larkin, David S. M. Billett, and George A. Wolff (2015) Biogeosciences 12: 1781-1797 The Arabian Sea is a region of elevated productivity with the highest globally recorded fluxes of particulate organic matter (POM) to the deep ocean ...
Sea-Floor Massive Sulphides 1A - SPC
... in the sea floor, reaching depths of several kilometres below the sea-floor surface, and is heated to temperatures above 400°C. The heated seawater leaches out metals from the surrounding rock. The chemical reactions that take place in this process result in a fluid that is hot, slightly acidic, red ...
... in the sea floor, reaching depths of several kilometres below the sea-floor surface, and is heated to temperatures above 400°C. The heated seawater leaches out metals from the surrounding rock. The chemical reactions that take place in this process result in a fluid that is hot, slightly acidic, red ...
Chapter 42 Cold-Water Corals
... times is consistent with these estimates, indicating that there was no apparent recovery 5-10 years after the closure of seamount fisheries on the Tasmanian seamounts (Althaus et al., 2009). These impacts have also been the most recognized in terms of management efforts, thus far (see below). Instal ...
... times is consistent with these estimates, indicating that there was no apparent recovery 5-10 years after the closure of seamount fisheries on the Tasmanian seamounts (Althaus et al., 2009). These impacts have also been the most recognized in terms of management efforts, thus far (see below). Instal ...
SECTION HEADING - School of Ocean and Earth Science and
... substrates of mid-ocean ridges (ribbons ~10 km wide and, in total, ~60,000 km long), seamounts (perhaps 50,000 – 100,000 in number (Epp & Smoot, 1989; Smith, 1991; Rogers, 1994)), and submarine canyons are relatively rare habitats in the enormous expanses of the deep sea, together estimated to occup ...
... substrates of mid-ocean ridges (ribbons ~10 km wide and, in total, ~60,000 km long), seamounts (perhaps 50,000 – 100,000 in number (Epp & Smoot, 1989; Smith, 1991; Rogers, 1994)), and submarine canyons are relatively rare habitats in the enormous expanses of the deep sea, together estimated to occup ...
1. Introduction, Objectives, and Principal Results, Leg 112, Peru
... 6. To quantify biogenic and clastic fluxes for evaluating interactions among sea level, climate, and oceanic circulation. 7. To understand the conditions leading to the formation of dolomites, phosphorites, and cherts in shelf and upper-slope basin deposits. 8. To determine whether microbial activit ...
... 6. To quantify biogenic and clastic fluxes for evaluating interactions among sea level, climate, and oceanic circulation. 7. To understand the conditions leading to the formation of dolomites, phosphorites, and cherts in shelf and upper-slope basin deposits. 8. To determine whether microbial activit ...
Deep-Sea Life
... are separated over prolonged periods, reducing the impact of anthropogenic carbon release. Microbial oxidation of methane keeps another potent greenhouse gas out of the atmosphere while trapping carbon in authigenic carbonates. Nutrient regeneration by all faunal size classes provides the elements n ...
... are separated over prolonged periods, reducing the impact of anthropogenic carbon release. Microbial oxidation of methane keeps another potent greenhouse gas out of the atmosphere while trapping carbon in authigenic carbonates. Nutrient regeneration by all faunal size classes provides the elements n ...
An off-axis hydrothermal vent field near the Mid
... hydrothermal ®elds. We found that vent ¯uids are relatively cool (40±75 8C) and alkaline (pH 9.0±9.8), supporting dense microbial communities that include anaerobic thermophiles. Because the geological characteristics of the Atlantis massif are similar to numerous areas of old crust along the Mid-At ...
... hydrothermal ®elds. We found that vent ¯uids are relatively cool (40±75 8C) and alkaline (pH 9.0±9.8), supporting dense microbial communities that include anaerobic thermophiles. Because the geological characteristics of the Atlantis massif are similar to numerous areas of old crust along the Mid-At ...
CAGE
... Sea over the last 50 years. The hydrate stability zone thickness is highly sensitive to the gas composition and the geothermal gradient, and show very high local variability. Ocean warming primarily affects hydrate stability most likely only in the upper few tens of meters of sediments. Our results ...
... Sea over the last 50 years. The hydrate stability zone thickness is highly sensitive to the gas composition and the geothermal gradient, and show very high local variability. Ocean warming primarily affects hydrate stability most likely only in the upper few tens of meters of sediments. Our results ...
Comparison of free-living, suspended particle, and aggregate
... 2006). Neither archaeal nor bacterial diversity has been reported for deeper waters on this or any Arctic shelf, or for aggregates descending into them, but elevated percentages of Archaea have been observed by FISH in nepheloid layers (particle-rich waters) advecting offshore at depth (Wells & Demi ...
... 2006). Neither archaeal nor bacterial diversity has been reported for deeper waters on this or any Arctic shelf, or for aggregates descending into them, but elevated percentages of Archaea have been observed by FISH in nepheloid layers (particle-rich waters) advecting offshore at depth (Wells & Demi ...
Seafloor Spreading Hypothesis
... The features of the seafloor and the patterns of magnetic polarity symmetrically about the mid-ocean ridges were the pieces that Hess needed. He resurrected Wegener’s continental drift hypothesis and also the mantle convection idea of Holmes. Hess wrote that hot magma rose up into the rift valley at ...
... The features of the seafloor and the patterns of magnetic polarity symmetrically about the mid-ocean ridges were the pieces that Hess needed. He resurrected Wegener’s continental drift hypothesis and also the mantle convection idea of Holmes. Hess wrote that hot magma rose up into the rift valley at ...
Chapter 36 F Open Ocean Deep Sea
... test the mechanisms that underlie latitudinal patterns in different fauna. Broad-scale depth and latitudinal patterns in benthic diversity are modified regionally by a variety of environmental factors operating at different scales. For example, OMZs strongly affect diversity where they impinge on th ...
... test the mechanisms that underlie latitudinal patterns in different fauna. Broad-scale depth and latitudinal patterns in benthic diversity are modified regionally by a variety of environmental factors operating at different scales. For example, OMZs strongly affect diversity where they impinge on th ...
Biogeography of planktonic and benthic
... strongly related to overall biomass (chlorophyll a concentration), although both these communities corresponded to different sets of biotic/abiotic variables. To examine the influence of freshwater input on planktonic cyanobacterial communities, we conducted a mesocosm experiment where seawater was ...
... strongly related to overall biomass (chlorophyll a concentration), although both these communities corresponded to different sets of biotic/abiotic variables. To examine the influence of freshwater input on planktonic cyanobacterial communities, we conducted a mesocosm experiment where seawater was ...
synthesis and review of the best available scientific studies on
... been suggested that the apparent increase in catch was sustained by serial depletions of previously unexploited and inaccessible stocks28. Serial expansion and depletion of seamount fisheries is also suggested by an increase, since the 1970s, in the catches of non-pelagic fishes from seamounts that ...
... been suggested that the apparent increase in catch was sustained by serial depletions of previously unexploited and inaccessible stocks28. Serial expansion and depletion of seamount fisheries is also suggested by an increase, since the 1970s, in the catches of non-pelagic fishes from seamounts that ...
Using sound waves to sort out seafloor sediment types
... profiles exactly at the camera station and solid lines are the mean profile for the homogeneous area around the station. ...
... profiles exactly at the camera station and solid lines are the mean profile for the homogeneous area around the station. ...
Document
... water samples from the epipelagic (5 m), mesopelagic (200 m, 600 m), and bathypelagic (1000 m, 2000 m) zones. The relative abundance of Bacteria, Crenarchaea, and Euryarchaea was determined by catalyzed reporter deposition fluorescence in situ hybridization (CARD-FISH). Apparent richness (total numb ...
... water samples from the epipelagic (5 m), mesopelagic (200 m, 600 m), and bathypelagic (1000 m, 2000 m) zones. The relative abundance of Bacteria, Crenarchaea, and Euryarchaea was determined by catalyzed reporter deposition fluorescence in situ hybridization (CARD-FISH). Apparent richness (total numb ...
Cold seep
A cold seep (sometimes called a cold vent) is an area of the ocean floor where hydrogen sulfide, methane and other hydrocarbon-rich fluid seepage occurs, often in the form of a brine pool. ""Cold"" does not mean that the temperature of the seepage is lower than that of the surrounding sea water. On the contrary, its temperature is often slightly higher. Cold seeps constitute a biome supporting several endemic species.Cold seeps develop unique topography over time, where reactions between methane and seawater create carbonate rock formations and reefs. These reactions may also be dependent on bacterial activity. Ikaite, a hydrous calcium carbonate, can be associated with oxidizing methane at cold seeps.