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Figueiras, F. G.; Labarta, Uxío; Reiriz, María José Fernández

doi:10.1023/a:1021309222459

Cited by 253 publications

(60 citation statements)

References 26 publications

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“…Generally, the semipermanent Azores High displaces northward during springsummer seasons (April to September/October), promoting northerly winds blowing over the continental shelf and inducing offshore Ekman transport (Fiúza, 1983;Alvarez et al, 2011). Accordingly, upwelling of subsurface, cold, and nutrient-rich Eastern North Atlantic Central Water (ENACW) occurs, leading to high primary production (Fraga, 1981;Tenore et al, 1995;Figueiras et al, 2002). In contrast, during autumn and winter (October to March/April), the Azores High weakens and migrates southward while the Icelandic Low intensifies.…”

Section: Oceanographic Settingmentioning

confidence: 99%

Spatial and temporal variability in coccolithophore abundance and distribution in the NW Iberian coastal upwelling system

et al. 2018

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Section: Oceanographic Settingmentioning

confidence: 99%

Spatial and temporal variability in coccolithophore abundance and distribution in the NW Iberian coastal upwelling system

et al. 2018

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“…2% of the NCP generated annually at the Ría de Vigo. Figueiras et al (2002) already estimated that 12 % of the NCP was incorporated by mussel at the Ría de Arousa. Although the Ría de Arousa has a surface 1.3 times higher than in the Ría de Vigo, this percentage of NCP taken up by mussels does not differ substantially between both Rías if it is taken into account that the number of mussel rafts in the Ría de Arousa is 5 times higher than in the Ría de Vigo (Labarta, 1999).…”

Section: Nem: Importance Of Benthic Fluxes Mussel Culture and Fisheriesmentioning

confidence: 99%

“…The FLUVBE station was located in the central axis of the Ría, an area covered by muddy sediment, which is the most abundant sediment type in the Ría de Vigo (Vilas et al, 2005). Moreover, the Ría de Vigo is an upwelling driven system which acts as an extension of the continental shelf and channels the 3D variability of the adjacent ocean into a 2D-circulation along the Ría main channel which, in last term, modulates the hydrodynamic and biogeochemical responses (Figueiras et al, 2002). Taking into account both circumstances, our study site can be considered representative of the subtidal regime in the Ría, though it has to be recognized that there are different specific benthic habitats in the Ría (Casal et al, 2013;López-Jamar & Cal, 1990;Rodil et al, 2009) mainly driven by sea surface sediment type (Vilas et al 2005).…”

Section: Nem: Importance Of Benthic Fluxes Mussel Culture and Fisheriesmentioning

confidence: 99%

“…In this region, the upwelling of subsurface cold and nutrient rich Eastern North Atlantic Central Water (ENACW) promotes high phytoplankton abundance able to support the highest mussel production (Mytilus galloprovincialis Lamark) in Europe. This activity renders a total estimated production of 243 x 10 6 kg yr -1 (Figueiras et al, 2002). The Ría de Vigo sustains 474 suspended mussel rafts and provides approx.…”

Section: Introductionmentioning

confidence: 99%

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Benthic fluxes, net ecosystem metabolism and seafood harvest: Completing the organic carbon balance in the Ría de Vigo (NW Spain)

Alonso-Pérez

Zúñiga

Arbones

et al. 2015

Estuarine, Coastal and Shelf Science

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Simultaneous direct measurements of primary production, pelagic and benthic respiration and vertical fluxes allowed, for the first time, the evaluation of the carbon metabolism in the Ría de Vigo (NW Spain) on seasonal and annual scales. With this aim, a total of 16 oceanographic cruises covering the main oceanographic conditions were carried out between April 2004 and January 2005. In addition, a 2D carbon budget, including extraction from mussel culture and fisheries activities, is proposed.The pelagic system was net autotrophic during the spring and summer periods and autotrophic or almost in balance during autumn and winter. Vertical fluxes of organic carbon were higher than net community production (NCP) during autumn and winter periods, probably due to resuspension processes and inputs of organic matter from continental runoff. Benthic mineralization is an important process in the Ría de Vigo, which gains significance during autumn and winter when benthic respiration accounts for 40% and 45% of the total respiration, respectively. The Ría de Vigo is net autotrophic on annual basis (317 ± 113 g C m -2 yr -1 ) even though the benthic metabolism reduces the NCP by 23%. Total annual carbon seafood harvest amounted 3% of the net ecosystem metabolism and it is dominated by mussel culture (89%).However, based on mean energy transfer efficiency between trophic levels of 10%, it is estimated that mussel culture and reported fish catches require up to 38% of the NCP.The organic carbon produced in situ at the Ría de Vigo and available for export to the adjacent shelf or to be buried in the sediment represents ¼ of the gross primary production and it is favoured during summer upwelling.3 HighlightsAn annual carbon budget including benthic fluxes and seafood harvest is proposed.The Ría de Vigo is net autotrophic on annual basis (317 ± 113 g C m -2 yr -1 ).Benthic remineralization reduces the autotrophy of the system by 23 %.Mussel culture and fisheries require 38 % of the net community production.Shelf carbon export and sediment burial account for ¼ of the gross primary production.

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“…Local 'f' values in the studied farm corresponded to those reported in coastal waters [59], which are known to be more eutrophic. Offshore Cape Ann's 'f' value was higher than locations such as Mahone Bay in Canada or Rías Baixas of Galicia in Spain, where productive mussel farming activities are performed [113,114]. The current farm has similarities with other previously studied American offshore sites with respect to good ratios of organic to inorganic contents in particulate matter too, such as in offshore California (10 km off of Long Beach, f = 0.80), where a commercial farm is ongoing, in contrast with Martha's Vineyard location in Massachusetts (in Martha's Vineyard Island), where organic percentage is poor (f = 0.44; [85]), but was, in the past, considered to be a potential site for offshore aquaculture.…”

Section: Experimental Farm At Cape Annmentioning

confidence: 97%

Depth Selection and In Situ Validation for Offshore Mussel Aquaculture in Northeast United States Federal Waters

Mizuta

Wikfors

2019

JMSE

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As mariculture progresses offshore in the US Exclusive Economic Zone, technical and ecological challenges need to be overcome, such as the choice of suitable sites that favor the production of target species. The offshore culture of blue mussels, Mytilus edulis, is performed with submerged longlines and mussels need to withstand more motion than on coastal sites. Temperature affects the ability of the byssus to adhere to farming rope, while chlorophyll concentration provides an estimation of food availability. Together, these are important factors in predicting the suitability of offshore mussel farms. To identify suitable depth of submersion for mussel ropes in New England federal waters, historical oceanographic data of temperature and chlorophyll a from 2005 to 2012 were used. The results suggest that mussel ropes were submerged during summer to a minimum depth of 15 m in northern and a 20-m depth in southern areas of New England where temperature is at a species-optimum and phytoplankton biomass is abundant. For the site offshore Massachusetts, in situ biodeposition measurements validated predicted depth, confirming satisfactory mussel performance. Promising local areas have shallow thermoclines, such as offshore Long Island, Cape Ann and New Hampshire. Recommended depths can be adjusted to future temperature increases associated with climate change.

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Cited by 253 publications

References 26 publications

Spatial and temporal variability in coccolithophore abundance and distribution in the NW Iberian coastal upwelling system

Spatial and temporal variability in coccolithophore abundance and distribution in the NW Iberian coastal upwelling system

Benthic fluxes, net ecosystem metabolism and seafood harvest: Completing the organic carbon balance in the Ría de Vigo (NW Spain)

Depth Selection and In Situ Validation for Offshore Mussel Aquaculture in Northeast United States Federal Waters

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