Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel Aquaculture
Multispectral satellite remote sensing imagery, together with appropriate modeling, have been proven to provide chlorophyll-<i>a</i> maps that are useful to evaluate the suitability of coastal areas for carrying out shellfish aquaculture. However, current approaches used for chlorophyll-...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Remote Sensing |
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| Online Access: | https://www.mdpi.com/2072-4292/14/20/5235 |
| _version_ | 1797470093644398592 |
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| author | Margarita Fernández-Tejedor Jorge Enrique Velasco Eduard Angelats |
| author_facet | Margarita Fernández-Tejedor Jorge Enrique Velasco Eduard Angelats |
| author_sort | Margarita Fernández-Tejedor |
| collection | DOAJ |
| description | Multispectral satellite remote sensing imagery, together with appropriate modeling, have been proven to provide chlorophyll-<i>a</i> maps that are useful to evaluate the suitability of coastal areas for carrying out shellfish aquaculture. However, current approaches used for chlorophyll-<i>a</i> estimation in very shallow coastal areas often fail in their accuracy. To overcome this limitation, an algorithm that provides an accurate estimation of chlorophyll-<i>a</i> concentration in the coastal areas of the Ebro delta (North Western Mediterranean) using atmospherically corrected Sentinel 2 (S2) remote sensing reflectances (Rrs) has been calibrated and validated. The derived chlorophyll-<i>a</i> maps created have been used in a dynamic carrying capacity model that covers areas from very rich waters inside the embayment to the more oligotrophic waters in the open sea. The use of carrying capacity models is recommended to evaluate the potential of marine coastal areas for bivalve mollusk aquaculture. In this context, the depletion of chlorophyll-<i>a</i> is an indicator of negative environmental impact and thus a continuous monitoring of chlorophyll-<i>a</i> is key. The proposed methodology allows estimation of chlorophyll-<i>a</i> concentration from Sentinel-2 with an accuracy higher than 70% in most cases. The carrying capacity and the suitability of the external areas of the Ebro delta have been determined. The results show that these areas can hold a significant mussel production. The methodology presented in this study aims to provide a tool to the shellfish aquaculture industry. |
| first_indexed | 2024-03-09T19:31:52Z |
| format | Article |
| id | doaj.art-95a958a0ea7741ecad214edc0f1fa61e |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-09T19:31:52Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-95a958a0ea7741ecad214edc0f1fa61e2023-11-24T02:21:48ZengMDPI AGRemote Sensing2072-42922022-10-011420523510.3390/rs14205235Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel AquacultureMargarita Fernández-Tejedor0Jorge Enrique Velasco1Eduard Angelats2Institute of Agrifood Research and Technology (IRTA), Carretera del Poblenou km 5.5, 43540 La Ràpita, SpainInstitute of Agrifood Research and Technology (IRTA), Carretera del Poblenou km 5.5, 43540 La Ràpita, SpainGeomatics Research Unit, Centre Tecnològic de Telecomunicacions de Catalunya (CTTC/CERCA), Av. Carl Friedrich Gauss 7, 08860 Castelldefels, SpainMultispectral satellite remote sensing imagery, together with appropriate modeling, have been proven to provide chlorophyll-<i>a</i> maps that are useful to evaluate the suitability of coastal areas for carrying out shellfish aquaculture. However, current approaches used for chlorophyll-<i>a</i> estimation in very shallow coastal areas often fail in their accuracy. To overcome this limitation, an algorithm that provides an accurate estimation of chlorophyll-<i>a</i> concentration in the coastal areas of the Ebro delta (North Western Mediterranean) using atmospherically corrected Sentinel 2 (S2) remote sensing reflectances (Rrs) has been calibrated and validated. The derived chlorophyll-<i>a</i> maps created have been used in a dynamic carrying capacity model that covers areas from very rich waters inside the embayment to the more oligotrophic waters in the open sea. The use of carrying capacity models is recommended to evaluate the potential of marine coastal areas for bivalve mollusk aquaculture. In this context, the depletion of chlorophyll-<i>a</i> is an indicator of negative environmental impact and thus a continuous monitoring of chlorophyll-<i>a</i> is key. The proposed methodology allows estimation of chlorophyll-<i>a</i> concentration from Sentinel-2 with an accuracy higher than 70% in most cases. The carrying capacity and the suitability of the external areas of the Ebro delta have been determined. The results show that these areas can hold a significant mussel production. The methodology presented in this study aims to provide a tool to the shellfish aquaculture industry.https://www.mdpi.com/2072-4292/14/20/5235sentinel-2aquaculturecarrying capacitychlorophyll-<i>a</i>shellfishbivalves |
| spellingShingle | Margarita Fernández-Tejedor Jorge Enrique Velasco Eduard Angelats Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel Aquaculture Remote Sensing sentinel-2 aquaculture carrying capacity chlorophyll-<i>a</i> shellfish bivalves |
| title | Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel Aquaculture |
| title_full | Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel Aquaculture |
| title_fullStr | Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel Aquaculture |
| title_full_unstemmed | Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel Aquaculture |
| title_short | Accurate Estimation of Chlorophyll-<i>a</i> Concentration in the Coastal Areas of the Ebro Delta (NW Mediterranean) Using Sentinel-2 and Its Application in the Selection of Areas for Mussel Aquaculture |
| title_sort | accurate estimation of chlorophyll i a i concentration in the coastal areas of the ebro delta nw mediterranean using sentinel 2 and its application in the selection of areas for mussel aquaculture |
| topic | sentinel-2 aquaculture carrying capacity chlorophyll-<i>a</i> shellfish bivalves |
| url | https://www.mdpi.com/2072-4292/14/20/5235 |
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