Coastal Upwelling: Physical Factors Feed Fish

Hartline, Beverly Karplus

doi:10.1126/science.208.4439.38

Cited by 31 publications

(10 citation statements)

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“…In all these models, recruitment was considered constant from year to year. However, it is unpredictable in nature: The cross influences of climate and hydrology on the plank tonic larval stages of marine species constitute two unpredictable phenomena involved in a cascade [3][4][5][6]. The lack of information on actual stocks, "The inability to predict" is a serious handicap for an economic activity.…”

Section: Fisheriesmentioning

confidence: 99%

“…The wrecks of boats, planes, metro, immersed by the United States are only a fraction of their artificial reefs. The submerged part of the oil platforms has been estimated at 180 million m 3 . The highest known annual production of fish biomass was showed on these oil platform by Claisse et al, [41], 27 times greater than for coral reefs.…”

Section: Use Of Artificial Reefsmentioning

confidence: 99%

“…• Thau pond: 2.8 days (suspended oysters and mussels) for 340 million m 3 Bivalves are used for bottom culture (mussels, oysters, scallops) even in rough waters and constitute a "living bottom". Alongside Atlantic states, empty oyster shells are spread on soft bottom [46] and seeded with oyster seed Crassostrea virginica to restore exploited oyster stocks and habitats.…”

Section: Installing Filter Feedersmentioning

confidence: 99%

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Fisheries, Aquaculture and Coastal Water Developments

Barnabé¹

2018

AAF

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We propose the limitation of fisheries, the expansion of aquaculture, restocking and stock enhancement trough hatchery proliferation, to produce more aquatic food. Multiplication of artificial reefs, filter feeders and algae on long lines, of marine protected areas in coastal waters, allows also to reduce chemical and plastic pollutions and limit water acidification. All these improvements are sometimes better valued by tourism and leisure activities than by professional fishing and gives an increased economical value to all aspects to these environments.

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Section: Fisheriesmentioning

confidence: 99%

Section: Use Of Artificial Reefsmentioning

confidence: 99%

Section: Installing Filter Feedersmentioning

confidence: 99%

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Fisheries, Aquaculture and Coastal Water Developments

Barnabé¹

2018

AAF

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“…One of these, located near the Manitoba-Saskatchewan border, may have shielded southern Manitoba from the influx of western-derived fine-grained clastics. In addition, submarine topography is known to be important in controlling upwelling of nutrient-rich water, even over relatively small geographic areas (Swift and Aagaard, 1976;Hartline, 1980). A combination of factors were probably responsible for the formation of the Odanah porcelanite.…”

Section: Factors Controlling Siliceous Nature Of Odanah Porcelanitementioning

confidence: 99%

Composition and depositional environment of the siliceous Odanah Member (Campanian) of the Pierre Shale in Manitoba

Young¹,

Moore²

1994

Geological Society of America Special Papers

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The Odanah Member of the Pierre Shale in southwestern Manitoba is a porcelanite of Late Cretaceous (Campanian) age that was deposited on the eastern platform area of the Western Interior Seaway.Odanah sediments were derived from erosion of preexisting sediments in the Cordilleran areas to the west, from contemporaneous volcanism, and from accumulation of siliceous biogenic material.The mineral assemblage of the Odanah is dominated by cristobalite (opal-CT) with lesser amounts of quartz, mixed layer clays, feldspar, and illite. Cristobalite, derived from the diagenesis of diatoms, radiolarians, and siliceous sponge spicules, occurs as cryptocrystalline cement, bladed crystals, and lepispheres. Diatoms are considered to be the major source of biogenic silica in the Odanah.Chemical analyses of the Odanah give Si0 2 values which range from 70 to 85% (mean, 81%). Apart from silica, major element concentrations are consistently lower than those of the average shale.Major factors restricting Odanah deposition to a geographically limited part of the Interior Seaway may include: (a) reduced supply of terrigenous material from the west due to the presence of a paleotectonic barrier near the Manitoba-Saskatchewan border, and (b) increased diatom productivity in a zone of upwelling related to the southward flow of Arctic water within the Interior Seaway.

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“…This striking event affected rapid changes in the biological environment and local economy of this coastal area. Local winds, nearshore currents, and waves spawned by remote processes all may influence the productivity of prime coastal fishing grounds [ Hartline , 1980].…”

Section: Introductionmentioning

confidence: 99%

Unprecedented coastal upwelling in the East/Japan Sea and linkage to long‐term large‐scale variations

Park

Kim

2010

Geophysical Research Letters

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[1] Unprecedented cold water was observed off the east coast of Korea in the summer of 2007, with the lowest temperature since 1961. The 9-year QuikSCAT satellite scatterometer wind field showed that the spectacular coastal upwelling was induced by Ekman transport to the offshore area by strong southerly winds. These characteristic winds were produced by the large scale air pressure distribution of typhoon Pabuk to the west, which stayed longest for the past half century, along with the North Pacific High (NPH) in the east. The duration of both tropical depressions and the westward moving NPH have shown characteristic increasing trends over several decades, which facilitate favorable conditions for the surface cooling. The negative trend in coastal water temperatures, in contrast with a positive trend offshore by global warming, supports the conclusion that small scale sea surface temperature variations at the coastal area could be remotely affected by long-term large-scale variations. Citation: Park, K.-A., and K.-R. Kim (2010), Unprecedented coastal upwelling in the East/Japan Sea and linkage to long-term large-scale variations, Geophys. Res. Lett., 37, L09603,

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Coastal Upwelling: Physical Factors Feed Fish

Cited by 31 publications

References 0 publications

Fisheries, Aquaculture and Coastal Water Developments

Fisheries, Aquaculture and Coastal Water Developments

Composition and depositional environment of the siliceous Odanah Member (Campanian) of the Pierre Shale in Manitoba

Unprecedented coastal upwelling in the East/Japan Sea and linkage to long‐term large‐scale variations

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