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Advances in Coastal Oceanography of Freshwater Influenced Regions

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Oceans and Coastal Zones".

Deadline for manuscript submissions: closed (31 July 2021) | Viewed by 3900

Special Issue Editor


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Guest Editor
Applied Physics Department, University of Cadiz, Cadiz, Spain
Interests: physical oceanography; hydrodynamic modelling; transport and diffusion in coastal areas

Special Issue Information

Dear Colleagues,

Coastal regions, where rivers debouch into estuaries and continental shelves, configure complex and highly dynamic ecosystems that are characterized by extensive interactions between physical, chemical, and biological processes associated with their terrestrial, freshwater, oceanic, and benthic components. These systems are highly productive and, therefore, of great socio-economic importance. Due to their inherent complexity, these ecosystems and their associated exploitable resources are especially vulnerable to climate change. Therefore, new research efforts aimed to improve our knowledge of the processes currently impacting coastal regions’ ecosystems and to diagnose their effects in preparation for future climate scenarios are clearly demanded. For instance, in some coastal regions, the biogeochemical composition of their waters is expected to change as a consequence of changes in rainfall, sea level rise, temperature, particulate matter deposition rates, wind regimes, and related socio-economics factors. Therefore, a multidisciplinary approach is needed to adequately examine coastal regions’ situations and provide solutions to avoid deleterious changes. It is worth noting that with this approach, the link between hydrological events and their consequences on coastal waters takes an especial relevance. This encourages scientists to integrate the input from watershed models into the study of coastal hydrodynamics to determine flux and how flux will change with modifications in land use, industrial inputs, or climate. In accordance with these ideas, this Special Issue entitled “Advances in coastal oceanography of freshwater-influenced regions” aims to present new research to advance our knowledge on all the aspects related to the proposed subject. Specifically, the topics of interest include, but are not restricted to:

  • Link between watershed catchment and coastal water properties.
  • Involved sedimentary processes affecting seabed and coast-line morphology. 
  • Transport and dispersion of river plumes and associated substances.
  • Biogeochemical processes in river and regions with freshwater influence.
  • Interactions among different uses of coastal waters.
  • Climate change effects on coastal ecosystems.
  • Development of tools for a sustainable coastal management.
  • Exchange of properties between watershed catchment and continental shelves.

Prof. Dr. Miguel Bruno
Guest Editor

Manuscript Submission Information

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Keywords

  • watershed catchment
  • river discharges
  • sedimentary processes
  • estuaries
  • biogeochemical of coastal waters
  • coastal management
  • maritime spatial planning
  • coastal hydrodynamics
  • transport and diffusion processes
  • climate change

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Published Papers (1 paper)

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Research

15 pages, 3858 KiB  
Article
Surface-Water Quality of the Gulf of Papagayo, North Pacific, Costa Rica
by Ana Y. Saravia-Arguedas, Hannia Vega-Bolaños, José Mauro Vargas-Hernández, Andrea Suárez-Serrano, Luis Sierra-Sierra, Alexandre Tisseaux-Navarro, Sergio Cambronero-Solano and Gladys Margarita Lugioyo-Gallardo
Water 2021, 13(17), 2324; https://doi.org/10.3390/w13172324 - 25 Aug 2021
Cited by 3 | Viewed by 3343
Abstract
In recent years, the northwestern part of the North Pacific areas of Costa Rica has undergone rapid socioeconomic development. This situation, combined with the scarce available information about the water quality of the Gulf of Papagayo, became the starting point to carry out [...] Read more.
In recent years, the northwestern part of the North Pacific areas of Costa Rica has undergone rapid socioeconomic development. This situation, combined with the scarce available information about the water quality of the Gulf of Papagayo, became the starting point to carry out a study to investigate the spatiotemporal variations of physicochemical and biological parameters of surface waters. Seven samplings were collected during the dry season and the rainy season from October 2016 to February 2018. Water quality parameters such as: temperature, salinity, dissolved oxygen, and chlorophyll a of six analytes: nitrate, nitrite, ammonia, phosphate, silicate and biological oxygen demand were measured. The results showed that phosphate and ammonium levels were lower during the rainy season (<6 µg P-PO4−3 L−1–9.53 µg P-PO4−3 L−1 and <11 µg N-NH4+ L−1–9.57 µg N-NH4+ L−1) than during the dry season (<6 µg P-PO4−3 L−1–13.64 µg P-PO4−3 L−1 and <11 µg N-NH4+ L−1–14.43 µg N-NH4+ L−1), which may be related to low rainfall (0, 00–26, 16 mm) during the sampling period. The dry season showed enrichment of ammonium, phosphate, and chlorophyll a due to the influence of the coastal upwelling for the intensification of the Papagayo winds from December to March. The physical, chemical, and biological indicators demonstrated that the Gulf waters had adequate quality. Nonetheless, there are specific areas such as Culebra Bay with conditions that could show deterioration of water quality. Full article
(This article belongs to the Special Issue Advances in Coastal Oceanography of Freshwater Influenced Regions)
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