Inshore Scotian Shelf Ecosystem Overview Report: Status and Trends
... Figure 17. Air temperatures from Sydney, at the northeastern end of the region of interest and Yarmouth, just beyond the southwestern end. Also shown is data from Truro, an inland location ............................................................................................................... ...
... Figure 17. Air temperatures from Sydney, at the northeastern end of the region of interest and Yarmouth, just beyond the southwestern end. Also shown is data from Truro, an inland location ............................................................................................................... ...
Dynamics of temperature and chlorophyll
... Three hydrographic surveys comprised of densely spaced XBT and CTD stations were conducted over Minami-kasuga Seamount, in the northwest Pacific (21°36'N, 143°38'E). A cold dome, similar to a Taylor column, was observed above the seamount top during the first survey. Uplifted isotherms penetrated to ...
... Three hydrographic surveys comprised of densely spaced XBT and CTD stations were conducted over Minami-kasuga Seamount, in the northwest Pacific (21°36'N, 143°38'E). A cold dome, similar to a Taylor column, was observed above the seamount top during the first survey. Uplifted isotherms penetrated to ...
DEEP SEA. WASTE DISPOSAL
... part if work on the many problems is to progress satisfactorily. Some types of research require a broad attack by many scientists, so that the same sort of activity will probably be needed in several countries simultaneously. Others require special knowledge or equipment available only in one or two ...
... part if work on the many problems is to progress satisfactorily. Some types of research require a broad attack by many scientists, so that the same sort of activity will probably be needed in several countries simultaneously. Others require special knowledge or equipment available only in one or two ...
Sea Lice Monitoring and Non
... both wild and farmed, and uniquely the threespine stickleback in the Pacific. Both Caligus species are parasitic on a range of non-salmonid and salmonid marine species including farmed and wild salmon. Caligus spp. are known to parasitize a wider range of fish species than L. salmonis. The copepodid ...
... both wild and farmed, and uniquely the threespine stickleback in the Pacific. Both Caligus species are parasitic on a range of non-salmonid and salmonid marine species including farmed and wild salmon. Caligus spp. are known to parasitize a wider range of fish species than L. salmonis. The copepodid ...
State Responsibility and the High Seas Marine Environment: A
... undertaken during the research vessel Challenger expedition of 1872-76.' However, it was not until after World War II, during which newly developed naval sonar revealed their distribution, that interest in seamounts burgeoned. 14 Since then, seamounts have experienced a steady increase in pressure f ...
... undertaken during the research vessel Challenger expedition of 1872-76.' However, it was not until after World War II, during which newly developed naval sonar revealed their distribution, that interest in seamounts burgeoned. 14 Since then, seamounts have experienced a steady increase in pressure f ...
Coral-Fish Dynamics and Interactions: A Case Study of Grand
... Following Captain Cook’s circumnavigation of the world, in which he logged descriptions of many plants and animals, many scientists began to study marine life more closely. One example of such early resear ...
... Following Captain Cook’s circumnavigation of the world, in which he logged descriptions of many plants and animals, many scientists began to study marine life more closely. One example of such early resear ...
Sea Lice Review and Summary of Research Priorities
... extent to which salmon aquaculture may contribute to this problem. Levels of lice infestation on mariculture and wild fish in the same near-shore waters are suggested to be consistently higher than on fish found offshore or upstream. However, the paucity of information on the prevalence and intensit ...
... extent to which salmon aquaculture may contribute to this problem. Levels of lice infestation on mariculture and wild fish in the same near-shore waters are suggested to be consistently higher than on fish found offshore or upstream. However, the paucity of information on the prevalence and intensit ...
Ecosystem Goods and Services of the Deep Sea
... 1. Introduction The deep sea, defined as water and sea floor areas below 200 meters, comprises 90% of the biosphere, but until recently humans knew relatively little about it. Since little or no light penetrates to these depths, it had been assumed that deep-sea life was sparse. But in fact life is ...
... 1. Introduction The deep sea, defined as water and sea floor areas below 200 meters, comprises 90% of the biosphere, but until recently humans knew relatively little about it. Since little or no light penetrates to these depths, it had been assumed that deep-sea life was sparse. But in fact life is ...
Here - Centre for Ocean Life
... The overarching goal of the Centre for Ocean Life is to develop a trait-based approach to promote a fundamental understanding and predictive capacity of marine ecosystems. An equally important goal is to train young scientists in interdisciplinary marine sciences. The Centre is cross-disciplinary (b ...
... The overarching goal of the Centre for Ocean Life is to develop a trait-based approach to promote a fundamental understanding and predictive capacity of marine ecosystems. An equally important goal is to train young scientists in interdisciplinary marine sciences. The Centre is cross-disciplinary (b ...
Benthic Exchange and Biogeochemical Cycling in Permeable
... this threshold is reached when permeability exceeds 10−12 m2 (Huettel & Rusch 2000, Huettel et al. 1996). In this review, we therefore define permeable sediments as those with a permeability greater than 10−12 m2 ; when this threshold is reached, interfacial solute fluxes deviate significantly from tho ...
... this threshold is reached when permeability exceeds 10−12 m2 (Huettel & Rusch 2000, Huettel et al. 1996). In this review, we therefore define permeable sediments as those with a permeability greater than 10−12 m2 ; when this threshold is reached, interfacial solute fluxes deviate significantly from tho ...
Strong Tidal Currents Observed near the Bottom in the
... vertical isotherm displacements, so that we can obtain the time series of vertical isotherm displacements from the time series of temperature and vertical temperature distribution. Since the temperature varies so little with depth in deep waters, however, the estimated values might include unexpecte ...
... vertical isotherm displacements, so that we can obtain the time series of vertical isotherm displacements from the time series of temperature and vertical temperature distribution. Since the temperature varies so little with depth in deep waters, however, the estimated values might include unexpecte ...
Paleoceanographical proxies based on deep-sea
... and only relations between individual species or species groups and single environmental parameters could be analysed, leading to major oversimplification of the complex natural situation in which a host of environmental factors interact and control foraminiferal ecology. Pflum and Frerichs (1976) n ...
... and only relations between individual species or species groups and single environmental parameters could be analysed, leading to major oversimplification of the complex natural situation in which a host of environmental factors interact and control foraminiferal ecology. Pflum and Frerichs (1976) n ...
AFSC - Pacific States Marine Fisheries Commission
... Increasingly, the program is ageing non-commercial species, which either are possible candidates for commercial harvest, or may be important in monitoring the broader ecosystem. These species currently include yellow irish lords, sculpin (great, plain, warty, and bigmouth), giant grenadier, eulachon ...
... Increasingly, the program is ageing non-commercial species, which either are possible candidates for commercial harvest, or may be important in monitoring the broader ecosystem. These species currently include yellow irish lords, sculpin (great, plain, warty, and bigmouth), giant grenadier, eulachon ...
A review of community ecology of mesophotic coral reef ecosystems
... representative subset of well-studied MCE locations are summarized in the remainder of this section. Western Atlantic In general, MCEs have been found on deeper fore-reef slopes adjacent to shallow-water coral reefs, deep-water rhodolith beds, and on isolated offshore banks on the continental shelf. ...
... representative subset of well-studied MCE locations are summarized in the remainder of this section. Western Atlantic In general, MCEs have been found on deeper fore-reef slopes adjacent to shallow-water coral reefs, deep-water rhodolith beds, and on isolated offshore banks on the continental shelf. ...
Fishing for the Future: Trends and Issues in Global
... vital social and environmental services they provide (for example, food and nutrition, employment and incomes, carbon cycling and sequestration). A range of human activities in and around the ocean, including the exploitation of natural resources, have an impact on the health of ocean and freshwater ...
... vital social and environmental services they provide (for example, food and nutrition, employment and incomes, carbon cycling and sequestration). A range of human activities in and around the ocean, including the exploitation of natural resources, have an impact on the health of ocean and freshwater ...
Fishing for the Future: Trends and Issues in Global
... vital social and environmental services they provide (for example, food and nutrition, employment and incomes, carbon cycling and sequestration). A range of human activities in and around the ocean, including the exploitation of natural resources, have an impact on the health of ocean and freshwater ...
... vital social and environmental services they provide (for example, food and nutrition, employment and incomes, carbon cycling and sequestration). A range of human activities in and around the ocean, including the exploitation of natural resources, have an impact on the health of ocean and freshwater ...
Quality Status Report 2000 - QSR 2010
... The North Atlantic circulation forms part of the global ocean circulation system that has been called the ‘Ocean Conveyor’ by oceanographers. Warm, salty, nutrient-rich surface waters flow north through the Atlantic at a rate more than a hundred times that of the Amazon River. They then sink to the ...
... The North Atlantic circulation forms part of the global ocean circulation system that has been called the ‘Ocean Conveyor’ by oceanographers. Warm, salty, nutrient-rich surface waters flow north through the Atlantic at a rate more than a hundred times that of the Amazon River. They then sink to the ...
Seamounts of the North-East Atlantic
... of planktonic organisms over seamounts constitutes an important basis for the diet of fish, squid and top predators such as sharks, rays, tuna and swordfish. Small and large cetaceans, and turtles also aggregate at these biologically productive hydrographic features. The fish communities found aroun ...
... of planktonic organisms over seamounts constitutes an important basis for the diet of fish, squid and top predators such as sharks, rays, tuna and swordfish. Small and large cetaceans, and turtles also aggregate at these biologically productive hydrographic features. The fish communities found aroun ...
Seamounts of the North-East Atlantic - Mar-Eco
... of planktonic organisms over seamounts constitutes an important basis for the diet of fish, squid and top predators such as sharks, rays, tuna and swordfish. Small and large cetaceans, and turtles also aggregate at these biologically productive hydrographic features. The fish communities found aroun ...
... of planktonic organisms over seamounts constitutes an important basis for the diet of fish, squid and top predators such as sharks, rays, tuna and swordfish. Small and large cetaceans, and turtles also aggregate at these biologically productive hydrographic features. The fish communities found aroun ...
Final Report of the Working Group on Fisheries Acoustics, Science
... around gas platforms, upward-looking moored echosounder to monitor juvenile salmon migration at sea, and the use of broadband technology to improve fish species and size discrimination with the goals of minimizing overfishing and bycatch. As the community is striving to use acoustics to its full pot ...
... around gas platforms, upward-looking moored echosounder to monitor juvenile salmon migration at sea, and the use of broadband technology to improve fish species and size discrimination with the goals of minimizing overfishing and bycatch. As the community is striving to use acoustics to its full pot ...
Angus Mackenzie - Water Column Effects Harmful Algae Blooms
... locations which are rarely, if ever, affected. Some species may for a period of several years become a major component of the phytoplankton only to eventually decline in abundance and disappear. The ability to form long-lived resting cysts that reside in the sediments is an important feature of the ...
... locations which are rarely, if ever, affected. Some species may for a period of several years become a major component of the phytoplankton only to eventually decline in abundance and disappear. The ability to form long-lived resting cysts that reside in the sediments is an important feature of the ...
Large Marine Ecosystems
... generally the most well-developed, would benefit from more institutional collaboration. Pollution and biodiversity arrangements often lack repercussions for non-compliance. Biodiversity/habitat protection arrangements are mainly just recommendations with opt-out clauses, and lack adequate data and i ...
... generally the most well-developed, would benefit from more institutional collaboration. Pollution and biodiversity arrangements often lack repercussions for non-compliance. Biodiversity/habitat protection arrangements are mainly just recommendations with opt-out clauses, and lack adequate data and i ...
Impact of the Arctic Ocean Atlantic water layer on Siberian shelf
... Kara Sea [Aagaard, 1989; Rudels et al., 1994]. The AW then finds its level of equilibrium at an intermediate level of 150– 900 m and mixes vigorously, while transiting around the Eurasian Basin in a cyclonic sense as a narrow topographically trapped boundary current with a warm core located 50 to 30 ...
... Kara Sea [Aagaard, 1989; Rudels et al., 1994]. The AW then finds its level of equilibrium at an intermediate level of 150– 900 m and mixes vigorously, while transiting around the Eurasian Basin in a cyclonic sense as a narrow topographically trapped boundary current with a warm core located 50 to 30 ...
Marine Science - Integrative Ecology Lab
... random sampling following predetermined depth strata (Doubleday, 1981; Gagnon, 1991). Station depth spanned from 24 to 512 m, and the minimal distance between two stations was 115 m. The samples were collected with a four-sided shrimp bottom trawl (Campelen 1800 type). The trawl was rigged with vari ...
... random sampling following predetermined depth strata (Doubleday, 1981; Gagnon, 1991). Station depth spanned from 24 to 512 m, and the minimal distance between two stations was 115 m. The samples were collected with a four-sided shrimp bottom trawl (Campelen 1800 type). The trawl was rigged with vari ...
Report 6512 – The effects on wind power on marine life – A
... to a short period. The effects are also relatively small due to the fact that the bottom sediment is usually coarse-grained. The overall assessment is therefore that sediment dispersal is a limited problem for most animal and plant communities, but specific consideration should be taken and fish rec ...
... to a short period. The effects are also relatively small due to the fact that the bottom sediment is usually coarse-grained. The overall assessment is therefore that sediment dispersal is a limited problem for most animal and plant communities, but specific consideration should be taken and fish rec ...
Demersal fish
Demersal fish live and feed on or near the bottom of seas or lakes (the demersal zone). They occupy the sea floors and lake beds, which usually consist of mud, sand, gravel or rocks. In coastal waters they are found on or near the continental shelf, and in deep waters they are found on or near the continental slope or along the continental rise. They are not generally found in the deepest waters, such as abyssal depths or on the abyssal plain, but they can be found around seamounts and islands. The word demersal comes from the Latin demergere, which means to sink.Demersal fish are bottom feeders. They can be contrasted with pelagic fish which live and feed away from the bottom in the open water column. Demersal fish fillets contain little fish oil (one to four percent), whereas pelagic fish can contain up to 30 percent.