Lecture 2
... Ks (Half saturation) conc. for bacterial uptake = 6.7-11.3 µM (which is >> phosphate conc. in sea water). Ø In the open ocean phosphate (PO4) conc. increases below the surface waters to a peak value near the permanent thermocline. If the water column is deep enough PO4 conc. is more or less uniform ...
... Ks (Half saturation) conc. for bacterial uptake = 6.7-11.3 µM (which is >> phosphate conc. in sea water). Ø In the open ocean phosphate (PO4) conc. increases below the surface waters to a peak value near the permanent thermocline. If the water column is deep enough PO4 conc. is more or less uniform ...
Document
... • Zooplankton rise to shallow water at night, sink to deeper water during the day • Found in many different groups of zooplankton • Zooplankters usually start to sink before dawn, and start to rise before dusk • Cycle is probably an internal biological clock that must be reinforced by day-night ligh ...
... • Zooplankton rise to shallow water at night, sink to deeper water during the day • Found in many different groups of zooplankton • Zooplankters usually start to sink before dawn, and start to rise before dusk • Cycle is probably an internal biological clock that must be reinforced by day-night ligh ...
CHAPTER 3
... - There are two types of continental margins; passive, or Atlantic, continental margins and active, or Pacific, continental margins. - Passive margins: a. are found around the rim of the Atlantic Ocean, b. are not plate boundaries, c. have little or no seismic or volcanic activity, and d. form when ...
... - There are two types of continental margins; passive, or Atlantic, continental margins and active, or Pacific, continental margins. - Passive margins: a. are found around the rim of the Atlantic Ocean, b. are not plate boundaries, c. have little or no seismic or volcanic activity, and d. form when ...
Issue 2 - INDEEP
... appeared to be relatively more abundant in Monterey Canyon. We speculate that sediment transport mechanisms may carry debris down canyon until it lodges on steep, rocky outcrops, in depressions, and along other physical barriers, found commonly within submarine canyons. An analogy on land might be t ...
... appeared to be relatively more abundant in Monterey Canyon. We speculate that sediment transport mechanisms may carry debris down canyon until it lodges on steep, rocky outcrops, in depressions, and along other physical barriers, found commonly within submarine canyons. An analogy on land might be t ...
3. deep-sea ecosystems: pristine biodiversity reservoir and
... 100,000 seamounts over 1000 m in height exist around the world’s oceans, and many more if we consider smaller mounts. But only around 350 of these seamounts have been sampled, and only around 100 have been studied in any detail. The particular biological features of seamounts include high productivi ...
... 100,000 seamounts over 1000 m in height exist around the world’s oceans, and many more if we consider smaller mounts. But only around 350 of these seamounts have been sampled, and only around 100 have been studied in any detail. The particular biological features of seamounts include high productivi ...
bottom trawl discards in the gulf of suez, egypt. ices cm 2006/k:07
... Discards refers to part of the gross catch not used in any way but is thrown back into the sea (Saila, 1983). Several abundant species are discarded, dead or dying, either because of their small size or because of poor commercial value. The high rate of discarding in fisheries may cause ecological e ...
... Discards refers to part of the gross catch not used in any way but is thrown back into the sea (Saila, 1983). Several abundant species are discarded, dead or dying, either because of their small size or because of poor commercial value. The high rate of discarding in fisheries may cause ecological e ...
The deep-sea floor ecosystem - School of Ocean and Earth Science
... the largest on the planet, covering roughly 60% of the Earth’s solid surface. Despite this vast size, our knowledge of the deep sea is poor relative to other marine ecosystems, and future human threats are difficult to predict. Low productivity, low physical energy, low biological rates, and the vas ...
... the largest on the planet, covering roughly 60% of the Earth’s solid surface. Despite this vast size, our knowledge of the deep sea is poor relative to other marine ecosystems, and future human threats are difficult to predict. Low productivity, low physical energy, low biological rates, and the vas ...
Chapter 4 Marine Sedimentation
... Geologic controls of continental shelf sedimentation must be considered in terms of a time frame. • For a time frame up to 1000 years, waves, currents and tides control sedimentation. • For a time frame up to 1,000,000 years, sea level lowered by glaciation controlled sedimentation and caused rivers ...
... Geologic controls of continental shelf sedimentation must be considered in terms of a time frame. • For a time frame up to 1000 years, waves, currents and tides control sedimentation. • For a time frame up to 1,000,000 years, sea level lowered by glaciation controlled sedimentation and caused rivers ...
Ocean Floor and Chemistry Directed Reading
... a. The amount of dissolved salts in a liquid b. The amount of sodium in a liquid c. The amount of water that has evaporated d. The amount of solids in a liquid ...
... a. The amount of dissolved salts in a liquid b. The amount of sodium in a liquid c. The amount of water that has evaporated d. The amount of solids in a liquid ...
Arctic Fisheries and International Law
... Arctic marine area vs Arctic Ocean – Arctic Ocean << Arctic marine area • North of Bering Strait, Greenland, Svalbard & Franz Josef Land; not: Bering Sea and Barents Sea • Characteristics compared to more southerly areas: – Data, knowledge and insight in ecosystems limited – Currently no large-scale ...
... Arctic marine area vs Arctic Ocean – Arctic Ocean << Arctic marine area • North of Bering Strait, Greenland, Svalbard & Franz Josef Land; not: Bering Sea and Barents Sea • Characteristics compared to more southerly areas: – Data, knowledge and insight in ecosystems limited – Currently no large-scale ...
Technical Abstract of the First Global Integrated Marine Assessment
... This Technical Abstract is based upon the First Global Integrated Marine Assessment – World Ocean Assessment I – released in January 2016, and, in particular, upon the Summary of that Assessment, which was approved by the United Nations General Assembly in December 2015. 1 It has been prepared in ac ...
... This Technical Abstract is based upon the First Global Integrated Marine Assessment – World Ocean Assessment I – released in January 2016, and, in particular, upon the Summary of that Assessment, which was approved by the United Nations General Assembly in December 2015. 1 It has been prepared in ac ...
Trophic Levels - My Teacher Pages
... A trophic level is a layer in the structure of feeding relationships in an ecosystem. Producers make up the first trophic level, and consumers make up several more trophic levels. Producers are called autotrophs, which are the sole point of entry for new energy into the ecosystem. Consumers called h ...
... A trophic level is a layer in the structure of feeding relationships in an ecosystem. Producers make up the first trophic level, and consumers make up several more trophic levels. Producers are called autotrophs, which are the sole point of entry for new energy into the ecosystem. Consumers called h ...
PN3 Full project description - Mar-Eco
... novaeangliae), Bryde’s whale (Balaenoptera edeni), pilot whale (Globicephela melas) and pelagic dolphins (Delphinids). Knowledge of the distribution and migration of sperm whales in the North Atlantic is poor, most information being obtained from the many whaling operations which have caught the spe ...
... novaeangliae), Bryde’s whale (Balaenoptera edeni), pilot whale (Globicephela melas) and pelagic dolphins (Delphinids). Knowledge of the distribution and migration of sperm whales in the North Atlantic is poor, most information being obtained from the many whaling operations which have caught the spe ...
Lecture 4 - Physical Factors - Aquatic
... Upwelling effects -‐ Ocean chlorophyll concentra6on and surface temperature off the California coast Phytoplankton blooms (orange color on leq image) correspond to cool regions (blue color on right image). ...
... Upwelling effects -‐ Ocean chlorophyll concentra6on and surface temperature off the California coast Phytoplankton blooms (orange color on leq image) correspond to cool regions (blue color on right image). ...
there`s no place like home
... filter-feeding animals can become established. These small patches of hard bottom will frequently support a garden of coral, sponges, algae, tube-dwelling worms, and other invertebrates attached to the surface. Living habitats based on bedrock provide food, shelter, spawning and nursery areas for a ...
... filter-feeding animals can become established. These small patches of hard bottom will frequently support a garden of coral, sponges, algae, tube-dwelling worms, and other invertebrates attached to the surface. Living habitats based on bedrock provide food, shelter, spawning and nursery areas for a ...
Currents and Climate
... • Cold-Water Currents and Climate Cold-water currents keep climates along a coast cooler than the inland climate yearround. ...
... • Cold-Water Currents and Climate Cold-water currents keep climates along a coast cooler than the inland climate yearround. ...
22 June 2007
... individual principal market tuna species to the 2008 total catch were: Albacore, 4.7%; Atlantic ...
... individual principal market tuna species to the 2008 total catch were: Albacore, 4.7%; Atlantic ...
Land-based pollution
... environmental features are: low depth, high productivity, organic matter enrichment and low hydrodynamic forces. In the Baltic Sea hypoxia is widespread in large areas both in the open deeper parts and at coastal sites. A side effect is increased release of phosphorous from sediments, causing furt ...
... environmental features are: low depth, high productivity, organic matter enrichment and low hydrodynamic forces. In the Baltic Sea hypoxia is widespread in large areas both in the open deeper parts and at coastal sites. A side effect is increased release of phosphorous from sediments, causing furt ...
Chapter 4 Marine Sedimentation
... Geologic controls of continental shelf sedimentation must be considered in terms of a time frame. • For a time frame up to 1000 years, waves, currents and tides control sedimentation. • For a time frame up to 1,000,000 years, sea level lowered by glaciation controlled sedimentation and caused rivers ...
... Geologic controls of continental shelf sedimentation must be considered in terms of a time frame. • For a time frame up to 1000 years, waves, currents and tides control sedimentation. • For a time frame up to 1,000,000 years, sea level lowered by glaciation controlled sedimentation and caused rivers ...
Chapter 4 Marine Sedimentation
... Geologic controls of continental shelf sedimentation must be considered in terms of a time frame. • For a time frame up to 1000 years, waves, currents and tides control sedimentation. • For a time frame up to 1,000,000 years, sea level lowered by glaciation controlled sedimentation and caused rivers ...
... Geologic controls of continental shelf sedimentation must be considered in terms of a time frame. • For a time frame up to 1000 years, waves, currents and tides control sedimentation. • For a time frame up to 1,000,000 years, sea level lowered by glaciation controlled sedimentation and caused rivers ...
An Oasis in Our Ocean
... A Kermadec Ocean Sanctuary will be one of the world’s largest no-take marine reserves and offer complete protection for its remarkable geology, biology and serve as a resource for further scientific discovery. The Kermadec region is remarkable and one of the most complex deep-sea marine habitats on ...
... A Kermadec Ocean Sanctuary will be one of the world’s largest no-take marine reserves and offer complete protection for its remarkable geology, biology and serve as a resource for further scientific discovery. The Kermadec region is remarkable and one of the most complex deep-sea marine habitats on ...
Fish and Shellfish of the South Atlantic and Gulf Coasts
... operations almost entirely to the waters close inshore. We do not know, with few exceptions, the areas where fish may congregate offshore, or whether such areas exist. We know very little of the life histories of some of the most important species of the region, so that we can only guess how large a ...
... operations almost entirely to the waters close inshore. We do not know, with few exceptions, the areas where fish may congregate offshore, or whether such areas exist. We know very little of the life histories of some of the most important species of the region, so that we can only guess how large a ...
Earth Science Chapter 20
... • These are referred to as submarine robots. • Jason Jr. • Perform tasks ranging from photographing the ocean to collecting mineral samples. ...
... • These are referred to as submarine robots. • Jason Jr. • Perform tasks ranging from photographing the ocean to collecting mineral samples. ...
Atmospheric and Oceanic Circulation
... • Circumpolar Deep Water (CPW or CDW) – Below Westwind Drift wind mixes the water from the surface to seafloor – Combines AABW, NADW (AAIW, Pacific water) – ACC- “great mixmaster of the world” (Broecker) – Feeds out into deep Indian and Pacific Oceans ...
... • Circumpolar Deep Water (CPW or CDW) – Below Westwind Drift wind mixes the water from the surface to seafloor – Combines AABW, NADW (AAIW, Pacific water) – ACC- “great mixmaster of the world” (Broecker) – Feeds out into deep Indian and Pacific Oceans ...
Deep sea fish
Deep-sea fish are fish that live in the darkness below the sunlit surface waters, that is below the epipelagic or photic zone of the sea. The lanternfish is, by far, the most common deep-sea fish. Other deep sea fish include the flashlight fish, cookiecutter shark, bristlemouths, anglerfish, and viperfish.Only about 2% of known marine species inhabit the pelagic environment. This means that they live in the water column as opposed to the benthic organisms that live in or on the sea floor. Deep-sea organisms generally inhabit bathypelagic (1000m-4000m deep) and abyssopelagic (4000m-6000m deep) zones. However, characteristics of deep-sea organisms, such as bioluminescence can be seen in the mesopelagic (200m-1000m deep) zone as well. The mesopelagic zone is the disphotic zone, meaning light there is minimal but still measurable. The oxygen minimum layer exists somewhere between a depth of 700m and 1000m deep depending on the place in the ocean. This area is also where nutrients are most abundant. The bathypelagic and abyssopelagic zones are aphotic, meaning that no light penetrates this area of the ocean. These zones make up about 75% of the inhabitable ocean space.The epipelagic zone (0m-200m) is the area where light penetrates the water and photosynthesis occurs. This is also known as the photic zone. Because this typically extends only a few hundred meters below the water, the deep sea, about 90% of the ocean volume, is in darkness. The deep sea is also an extremely hostile environment, with temperatures that rarely exceed 3 °C and fall as low as -1.8 °C (with the exception of hydrothermal vent ecosystems that can exceed 350 °C), low oxygen levels, and pressures between 20 and 1,000 atmospheres (between 2 and 100 megapascals).