Análise da qualidade ambiental das praias do Guarujá (SP) através da avaliação de lançamentos pontuais de esgotos - Emissário Submarino do Guarujá, canais artificiais e rios da praia do Perequê

Ferreira, Fernando Rodrigues

doi:10.11606/d.106.2015.tde-27082015-094510

Cited by 2 publications

(5 citation statements)

References 4 publications

(4 reference statements)

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“…However, coastline stabilization was not enough to reduce beach erosion and protect inland infrastructures. Between 1995 and 2003, several erosive episodes were reported north of Costa da Caparica, followed by emergency repair works (such as dune reinforcement) between 2003 and 2004, and strengthening and reconfigura-tion of the groin field and seawall from 2004 to 2006 [9,20]. Afterwards, according to the designed coastal management master plan [21], an extensive beach nourishment program was carried on by Portuguese coastal authorities between 2007 and 2019, comprising the placement of 4.5 million m 3 of sand (in five phases) in the sub-aerial beach, along the 3.8 km northern shoreline.…”

Section: Study Areamentioning

confidence: 99%

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Evaluation of Coastal Protection Strategies at Costa da Caparica (Portugal): Nourishments and Structural Interventions

Sancho

2023

JMSE

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Costa da Caparica beach, in Portugal, has suffered from chronic erosion for the last 50 years, a phenomenon that has been countered by various management interventions. This study aims at comparing sixteen possible interventions, thus identifying the most effective one(s) in terms of reducing beach erosion or even promoting beach accretion. This exercise is achieved using a one-line shoreline evolution model, calibrated with in situ field data, forced by local wave conditions. The target management period is 25 years. In the calibration phase, it is found that the annual mean alongshore net sediment transport along the 24 km sandy coast is variable in direction and magnitude, but it is mostly smaller than ±50 × 103 m3/year. This net transport results from the imbalance of northward/southward-directed bulk transports of circa tenfold-larger magnitudes. This affects the overall sediment balance at the urban beaches, as well as the effectiveness of the intervention strategies. The results show that the present management strategy is effective in holding the shoreline position, although deploying the same nourishment volume but over a shorter area could lead to better results. The best solutions, which are capable of promoting beach accretion, implicate the lengthening of the terminal groin at the northern extremity of the beach. The results from this study can support decision makers in identifying the most appropriate management action, not just locally but also at other coastal regions where similar problems persist and the same methodology could be applied.

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Section: Study Areamentioning

confidence: 99%

“…These data were analysed with GIS-designated software, adopting the Official Portuguese reference system-PT-TM06/ETRS89-and the vertical Nautical Chart Datum, abbreviated as C.D., established 2.26 m below the present mean sea level (MSL) at Cascais [20]. Times of photos/orthophotos are referred to UTC (Coordinated Universal Time).…”

Section: Datamentioning

confidence: 99%

Evaluation of Coastal Protection Strategies at Costa da Caparica (Portugal): Nourishments and Structural Interventions

Sancho

2023

JMSE

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“…We chose for that two other islands located on Sepetiba Bay (Rio de Janeiro State) and Cananéia (São Paulo State). Both places rely on artisanal shrimp fishery as an important source of income (Begossi 1992, Begossi et al 2006. In Sepetiba, Begossi (1992) 0.001) (there is no information available on time on each spot).…”

Section: Discussionmentioning

confidence: 99%

“…There is no clear system of exclusion or access control to the area and its fishing resources besides a government decree establishing a closed season (three months) for shrimp fisheries. During the study time, this season was established between March and May (Decree 74, February 13, 2001), which was intensively refuted by the fishermen, who believed that during this time sea bob shrimp was not reproducing (Ferreira et al 2006) Although all the local fishermen claimed that there are no particular fishing areas and that they can fish wherever they want, just respecting the first comer's right (interviews data, n=51), some incipient conflicts were mentioned by the interviewees and observed by the researchers between trawlers and gillnetters. The fishing areas are the same for both fishermen groups, according to the mapping of their spots and to the interviews realized during the fish landings (Figure 6), which seems to be the main cause of their conflicts.…”

Section: Resource Accessmentioning

confidence: 99%

“…Currently, we observe two different tendencies in relation to Brazilian small-scale fisheries. In some communities, fisheries are being reduced to subsistence, being displaced by real state development and tourism (Diegues, 2006;MacCord & Begossi, 2006). In others, fisheries are becoming more commercial (Masumoto, 2004), increasing the pressures over the local resources, usually without any scientific or management support (MacCord, in press).…”

Section: Introductionmentioning

confidence: 99%

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Modelos ecologicos e processos de decisão entre pescadores artesanais do Guaruja, SP

Lopes¹

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AgradecimentosÀ Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) pela bolsa de doutoramento concedida (Processo no. 04-07073-4) e pelo financiamento do estágio de doutoramento pela Universidade da Califórnia, Davis, Estados Unidos À Dra. Alpina Begossi pela incomparável orientação e oportunidades para participar em diversos outros projetos ao longo de todo o tempo em que estive sob sua orientação. Acima de tudo pela sua amizade, paciência e aconselhamento que tornaram estes anos de convivência muito mais agradáveis.Ao Prof. Dr. Bruce Winterhalder pela acolhida simpática e calorosa em Davis, e acima de tudo, por estar disposto a compartilhar seus conhecimentos.Ao Prof. Dr. Renato Silvano, que desde o começo de meu mestrado me ofereceu oportunidades de trabalhar em seus projetos e sempre contribuiu de forma incomparável com suas críticas extremamente produtivas. Hoje, mais do que agradecer a ele como professor, agradeço com um grande amigo.À Cristiana Seixas pelas dicas que melhoraram em muito a primeira versão desta tese. Sou realmente profundamente grata pela forma detalhada com que leu e corrigiu este trabalho.Aos professores que participaram da pré-banca e banca desta tese e contribuíram com muitas informações sugestões relevantes.À Arlaine Francisco pela ajuda em campo e pela colaboração na elaboração do primeiro capítulo desta tese. A Allan George Ferreira pela ajuda na coleta de dados e pelo acompanhamento das viagens de campo.

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Análise da qualidade ambiental das praias do Guarujá (SP) através da avaliação de lançamentos pontuais de esgotos - Emissário Submarino do Guarujá, canais artificiais e rios da praia do Perequê

Cited by 2 publications

References 4 publications

Evaluation of Coastal Protection Strategies at Costa da Caparica (Portugal): Nourishments and Structural Interventions

Evaluation of Coastal Protection Strategies at Costa da Caparica (Portugal): Nourishments and Structural Interventions

Modelos ecologicos e processos de decisão entre pescadores artesanais do Guaruja, SP

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