ABSTRACT
Vulnerability of small-scale fisheries (SSF) results from complex interactions amongst various threats and stressors, including biophysical risks, environmental variability, unstable political situations, and weak governance, to name a few. SSF vulnerability has become more evident, with increased severity, during the COVID-19 pandemic. Knowledge about what makes SSF vulnerable is limited, which impedes appropriate policy responses and intervention. As a first step to rectifying the situation, a classification approach is proposed to better describe and differentiate types of vulnerability to SSF and to guide data collection and dissemination about SSF vulnerability. The classification system is developed based on a narrative review of case studies worldwide, published in scientific journals in the past 20 years. The case studies cover SSF in diverse aquatic environments, including river, floodplain, reservoir, river delta, lake, atoll, estuaries, lagoon mangrove, coral reefs, seagrass ecosystem, islands, coastal and marine environment. Similar to the five pillars of sustainability, SSF vulnerability is associated with five main factors, i.e., biophysical, social, economic, technological, and governance. Knowledge about SSF vulnerability helps inform tailored management strategies and policies to reduce SSF marginalization and promote viability, aligning, therefore, with the goal of the Voluntary Guidelines for Securing Sustainable Small-Scale Fisheries.Copyright © 2022 Elsevier Ltd
ABSTRACT
This paper aims to update the exposure to flood risk in a catchment area of the Community of Madrid (Spain) linked to primary sector activities, albeit affected by the urban expansion of the capital. This research starts with the updating of the flood inventory, encompassing episodes documented between 1629 and 2020. The inadequate occupation of the territory means that floods continue to cause significant damage nowadays. It is worth highlighting the two recent floods (2019) that occurred just 15 days apart and caused serious damage to several towns in the basin. The areas at risk of flooding are obtained from the National Floodplain Mapping System, and the maximum and minimum floodable volume in the sector of the Tajuña River basin with the highest exposure to flooding has been calculated. The Sentinel 2 image in false colour (RGB bands 11-2-3, 11-8-3 and 12-11-8) and its transformation to colour properties (Intensity, Hue and Saturation) has made it possible to determine the extension of the riparian vegetation and the irrigated crops located in the alluvial plain. The SPOT 6 image with higher spatial resolution has allowed us to update the mapping of buildings located in areas at risk of flooding. Finally, based on cadastral data, a detailed cartography of built-up areas in areas at risk of flooding is provided. They affect buildings built mainly between the 1960s and 1990s, although the most recent buildings are built on agricultural land in the alluvial plain, even though current regulations prevent the occupation of these lands.
ABSTRACT
The COVID-19 pandemic has created unprecedented human health crisis in recent global history with rippling social and economic effects. The outbreak in India has resulted in emergency lockdown in the country for more than 2 months, and that caused decline in the catch, demand, and supply of fish. It has severely altered the life and livelihoods of the floodplain wetland fishers. These floodplain wetlands play a key role in socio-economic development of stakeholders, by generating employment and livelihood in the studied regions. In the present study, a systematic assessment was conducted to identify the impact of lockdown on floodplain wetland fisheries in India with the aim to evaluate the impact of the COVID-19 lockdown on wetland fishing, fisheries production, income, and food access. We conducted a rapid telephonic survey covering176 wetland fishers in 3 states to document the early impacts of the pandemic and policy responses on floodplain wetland fisher households. The majority of fishers report negative impacts on production, sales, and incomes. Fishers of three Indian states Bihar, West Bengal, and Assam lost 20, 25, and 9 fishing days, respectively. About 70, 60, and 55 % fishers of floodplain wetlands of the three states admitted that lockdown made them partially jobless. Fish harvest during March to May was 32, 44, and 20 % lower than the previous years in Bihar, West Bengal, and Assam. The fishers of Bihar, West Bengal, and Assam lost income of INR 10000/-, 12500/-, and 4500/- due to lockdown. The analysis also showed that 25% of fishers each responded moderate to severe psychological impact and anxiety symptoms due to COVID-19. Demand supply gap during the lockdown led to the in 20-40 % increase in farm gate price of fishes at the wetland level. The present study is the first of its kind in India to systematically assess the impact and discusses several magnitudes on floodplain wetland fisher livelihood, income, and food access and suggests strategies and decision support.