Estuarine Primary Producers: Laguna de Terminos—a Study Case

Rojas-Galaviz, J. L.; Yáñez‐Arancibia, Alejandro; Day, John W.; Vera-Herrera, Francisco

doi:10.1016/b978-0-08-092567-7.50016-7

Cited by 17 publications

(3 citation statements)

References 10 publications

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“…For the US rivers the daily data were obtained from the U.S. Geological Survey (USGS) (https://www.usgs.gov/) and the Gulf of Mexico Coastal Ocean Observing System (GCOOS) (https://products.gcoos.org/). Monthly climatological values were calculated for the Mexican rivers, using temporally scattered information found in the literature (Rojas-Galaviz et al, 1992;Milliman and Syvitski, 1992;Poot-Delgado et al, 2015;Conan et al, 2016) and a data collection effort within Mexican institutions by Dr. Jorge Zavala-Hidalgo (personal communication). Therefore the US rivers present inter-annual variability but it is absent in the Mexican rivers.…”

Section: Freshwater Sourcesmentioning

confidence: 99%

Budget of the total nitrogen in the Yucatan Shelf: driving mechanisms through a physical-biogeochemical coupled model

Estrada-Allis

Souza²,

Sheinbaum

et al. 2019

Preprint

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<p><strong>Abstract.</strong> Continental shelves are the most productive areas in the seas with strongest implications for global Total Nitrogen (TN) cycling. The Yucatan shelf is the largest shelf in the Gulf of Mexico (GoM), however, its general TN budget has not been quantified. This is largely due to the lack of significant spatio-temporal in situ measurements and the complexity of the shelf dynamics, including the Yucatan Current, coastal upwelling, Coastal Trapped Waves (CTWs) and bottom Ekman transport. Through a nine years output of a coupled physical-biogeochemical model of the GoM, the TN budget in the Yucatan shelf is quantified. Results indicate that the main entrance of inorganic nitrogen is through its southern and eastern margins. The TN is then advected to the oligotrophic deep GoM and to the deep Campeche bay. The analysis also shows that the inner shelf (50&#8201;m isobath) is efficient in terms of TN, since all the DIN imported into the shelf is consumed by the phytoplankton. Rivers contribute 20&#8201;% of the TN, while denitrification removes up to 53&#8201;% of TN that enters into the inner shelf. The high-frequency variability of the TN fluxes are modulated by the Yucatan Current in the south and by bottom Ekman transport produced by this current against the shelf-break (250&#8201;m isobath) in the east. This current-topography interaction can help to maintain the upwelling of Cape Catoche, uplifting nutrient-rich water into the euphotic layer. The export of TN at both western and northwestern margins is modulated by CTWs with a mean period of 10 days in agreement with recent observational and modelling studies.</p>

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Section: Freshwater Sourcesmentioning

confidence: 99%

Budget of the total nitrogen in the Yucatan Shelf: driving mechanisms through a physical-biogeochemical coupled model

Estrada-Allis

Souza²,

Sheinbaum

et al. 2019

Preprint

View full text Add to dashboard Cite

show abstract

“…If the annual biomass turnover rates reported for salt marsh plants (Schubauer and Hopkinson 1984;Costa, in press), seagrasses (Hillman et al 1989), and benthic macro algae (Luning 1990) are applied, net annual carbon contributions increase even more. The apparent seasonal programming of carbon fucation is one of the functional processes that sustains high estuarine production (Rojas-Galaviz et al 1992). Carbon contributions to the Patos Lagoon estuary are the result of both year-round supply by some producer groups (Le.…”

Section: 1mentioning

confidence: 99%

Subtropical Convergence Environments

Seeliger¹,

Odebrecht²,

Castello³

1997

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“…Species of mangrove here include R. mangle, A. germinans, L. racemosa, and C. erectus. The structure and function of the mangrove habitat have been described in a suite of publications (e.g., Rojas-Galaviz et al 1992). Net primary productivity was much higher at a riverine site (2,458 g/m 2 /year) compared to a fringing mangrove location (1,606 g/m 2 /year) (Table 6.14), apparently due to greater nutrient and freshwater input at the riverine location.…”

Section: Primary Productivitymentioning

confidence: 99%