Are Portuguese coastal fisheries affected by river drainage?

Gamito, Rita; Vinagre, Catarina; Teixeira, Conceição Pequito; Costa, M. J.; Cabral, Henrique N.

doi:10.1051/alr/2016010

Cited by 2 publications

(1 citation statement)

References 58 publications

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“…ERs and marine-estuarine-dependent (and commercially important) species (e.g., European sea bass, European flounder and common sole) increase the abundance with higher rainfall/runoff due to the increased productivity. Coastal fisheries landings from the latter species also benefit from such conditions [ 68 ]. FW species are absent during drought years.…”

Section: Discussionmentioning

confidence: 99%

Influences of Climate Change and Variability on Estuarine Ecosystems: An Impact Study in Selected European, South American and Asian Countries

Filho

Nagy

Martinho

et al. 2022

IJERPH

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It is well-known that climate change significantly impacts ecosystems (at the macro-level) and individual species (at the micro-level). Among the former, estuaries are the most vulnerable and affected ecosystems. However, despite the strong relations between climate change and estuaries, there is a gap in the literature regarding international studies across different regions investigating the impacts of climate change and variability on estuaries in different geographical zones. This paper addresses this need and reviews the impacts of climate change, variability and extreme weather on estuaries. It emphasises the following: (i) a set of climate parameters governing estuarine hydrology and processes; and (ii) a sample of countries in Asia (Bangladesh), Europe (Portugal) and South America (Uruguay). We reviewed the influences of the climatic drivers of the estuarine hydrology, ecological processes and specific species in estuarine communities across the selected geographical regions, along with an analysis of their long-term implications. The key results from the three estuaries are as following: (i) Hilsa fish, of which the catches contribute to 10% of the total earnings of the fishery sector (1% of GDP), are affected by climate-forced hydrological and productivity changes in the Meghna; (ii) extreme droughts and short-term severe precipitation have driven the long-term abundance and spatial distribution of both fish larvae and juveniles/adults in the Mondego; and (iii) the river inflow and fluctuations increases since the early 1970s have contributed to variations in the salinity, the stratification, the oxygen, nutrient and trophic levels and the spatial pattern for the life stages of planktonic species, fish biomass and captures in the Rio de la Plata. The results suggested that immediate action is needed to reduce the vulnerability of estuaries to climate stressors, mainly the changing river flows, storms and sea-level rise. As a contribution to addressing current problems, we described a set of adaptation strategies to foster climate resilience and adaptive capacity (e.g., early-warning systems, dam management to prevent overflows and adaptive fisheries management). The implications of this paper are two-fold. Firstly, it showcases a variety of problems that estuaries face from changing climate conditions. Secondly, the paper outlines the need for suitable adaptive management strategies to safeguard the integrity of such vital ecosystems.

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Section: Discussionmentioning

confidence: 99%

Influences of Climate Change and Variability on Estuarine Ecosystems: An Impact Study in Selected European, South American and Asian Countries

Filho

Nagy

Martinho

et al. 2022

IJERPH

View full text Add to dashboard Cite

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Land–Sea Interactions and Ecosystem Services: Research Gaps and Future Challenges

2023

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The land–sea interface is essential for understanding the interconnectedness of terrestrial and marine ecosystems and provides ecosystem services to people. Although research has been conducted on both ecosystems, knowledge about their interactions remains limited. While there has been growing research interest on land–sea interactions over the last decade, other types of knowledge system such as local or indigenous knowledge have not yet been included. The goal of this study is to review the literature related to land–sea interactions using an ecosystem services framework to help classify existing research. A systematic review of the literature was employed by searching peer-reviewed publications in Web of Science using land–sea interaction keywords. The synthesis identified 166 publications. The findings indicate that the primary disciplines that have investigated land–sea interactions were biogeochemistry and ecology, with a focus on nutrients and interactions. In terms of ecosystem services, supporting and regulating services were the most researched, with urbanization and agricultural and forestry effluents as main studied drivers. Results reveal a need for a more comprehensive view of land–sea interactions that recognizes the critical role that social factors play in shaping the sustainability of these systems. Therefore, a future challenge involves using a more holistic approach to the study and management of land–sea interactions.

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Are Portuguese coastal fisheries affected by river drainage?

Cited by 2 publications

References 58 publications

Influences of Climate Change and Variability on Estuarine Ecosystems: An Impact Study in Selected European, South American and Asian Countries

Influences of Climate Change and Variability on Estuarine Ecosystems: An Impact Study in Selected European, South American and Asian Countries

Land–Sea Interactions and Ecosystem Services: Research Gaps and Future Challenges

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