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  • Journals
  • Articles  (4)
  • 05.09. Miscellaneous  (2)
  • Abundance  (2)
  • 2020-2024  (4)
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  • Journals
  • Articles  (4)
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  • 1
    Publication Date: 2024-04-24
    Description: Groundwater is a vital resource for humans, non-human species, and ecosystems. It has allowed the development of human evolution and civilizations throughout history (e.g., Wittfogel 1956, Tempelhoff et al. 2009, Cuthbert and Ashley 2014, Roberts 2014). However, it faces multiple potential threats that make it vulnerable and fragile. Climate change and human activities are the primary causes that have led to water cycle disruptions, particularly a decline in groundwater quality and quantity (e.g., Gleeson et al. 2020, Chaminé et al. 2022, Richardson et al. 2023). Climate variability has induced droughts, floods, and other extreme weather conditions, significantly impacting groundwater in many regions. Meanwhile, human activities such as over-abstraction, ground contamination, deforestation, land-use change, and other anthropogenic pressures have further compromised groundwater status. Nonetheless, groundwater continues to fulfill water demands in many regions or during specific periods. Therefore, concerted efforts are imperative to ensure its sustainability. So, conservation practices and nature-based solutions must be adopted to efficiently manage groundwater and shield it from additional potential hazards or risks (e.g., contamination, pollution, or over-abstraction). Failure to act quickly can result in the loss of this critical resource, with severe consequences for the economy, society, and ecosystems. From this perspective, it is imperative to prioritize actions underscored by technical-scientific integrity, environmental responsibility, societal sensitivity, and ethical practices.
    Description: Published
    Description: 97
    Description: OS: Terza missione
    Description: OSA5: Energia e georisorse
    Description: JCR Journal
    Keywords: groundwater ; resource management ; sustainability ; hydrogeoethics ; geoethics ; societal well-being ; 05.03. Educational, History of Science, Public Issues ; 03.02. Hydrology ; 04.04. Geology ; 05.09. Miscellaneous
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: article
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  • 2
    Publication Date: 2024-03-20
    Description: In a volcanic crisis, authorized decision-makers must balance the social and economic costs of mitigating actions, such as evacuation, against the potential human losses if such actions are insufficient. In making their decisions, advice is needed from volcanologists on the eruption probability. Therefore, there should be a clear separation in the roles of volcanologists and decision-makers; the volcanologists should advise on the volcano hazard and alternative potential scenarios but refrain from involvement in making decisions. Currently, volcanologists are responsible for setting volcano alert levels. Given the small handful of distinct alert levels, there is inherent ambiguity and substantial uncertainty in the interpretation of individual levels. Furthermore, changing an alert level may automatically trigger actions by decision-makers. This would violate the principle of separation of responsibility and may result in unwelcome pressure being applied to volcanologists. Just as physicians can invoke medical ethics in resisting pressure to alter their advice, so volcanologists can invoke geoethics. Freedom to abide by their scientific beliefs is a basic tenet of geoethics.
    Description: Published
    Description: 19-23
    Description: Terceira Island, Azores (Portugal)
    Description: 4SR TERREMOTI - Preparazione alla comunicazione in emergenza
    Description: 6SR VULCANI – Servizi e ricerca per la società
    Description: 1TM. Formazione
    Description: 3TM. Comunicazione
    Keywords: volcano ; crisis ; evacuation ; geoethics ; responsibility ; 05.03. Educational, History of Science, Public Issues ; 05.09. Miscellaneous ; 04.08. Volcanology
    Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)
    Type: book chapter
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  • 3
    Publication Date: 2023-12-21
    Description: Fisheries in the Mekong River are characterized by high pressure and extremely low selectivity towards fishing targets, which greatly complicates the conservation and possible restoration of the region's biodiversity. Relevance. Knowledge of fish population structure and biology is essential for fishery management and rational use of resources; however, the fisheries of the region are predominantly artisanal, for which the information on catches is scarce. This work is aimed at a study of the morphological characteristics of Smith's barb Puntioplites proctozystron (Bleeker, 1865) and the distribution of its quantitative parameters. The data have been collected from the bottom trawl catches in the Mekong River Delta that were conducted using a beam trawl in the low water and flood periods of 2018–2022. The average abundance and biomass of this species in fresh waters were 8.3±20.8 ind./ha and 114.7±229.4 g/ha, and in the estuary they were 0.6±2.7 ind./ha and 12.1±63.5 g/ha. These quantitative parameters for Smith's barb in the relatively shallow and low-flow Hau River and its estuarine channels were statistically significantly higher than in the rest of the delta estuary system (8.5±22.2 ind./ha and 110.7±248.7 g/ha as compared to 1.4±6.5 ind./ha and 25.0±90.1 g/ha). Examination of morphological characteristics showed a very low variability of traits in mature individuals; the coefficient of variation was less than 10 %. The obtained results indicate the absence of sexual dimorphism and different morphotypes in the population, provide the ground for minimum landing size recommendations, and can serve as a foundation for the further population research of this species.
    Description: Рыболовство в реке Меконг отличается высокой нагрузкой и крайне малой избирательностью в отношении объектов промысла, что значительно осложняет сохранение и возможное восстановление биоразнообразия региона. Для управления промыслом и рационального использования ресурсов необходимы знания о популяционной структуре и биологии рыб, однако на реке в основном преобладает кустарное слабо учитываемое рыболовство. Целью работы стало исследование морфологических характеристик барбуса Смита Puntioplites proctozystron (Bleeker, 1865) и распределения его количественных показателей. Для исследований использованы уловы донных тралений в дельте р. Меконг, проводившихся бимтралом в меженные и паводковые периоды 2018–2022 гг. Результаты. Средняя численность и биомасса вида в пресных водах составляла 8,3±20,8 экз./га и 114,7±229,4 г/га, а в эстуарии — 0,6±2,7 экз./га и 12,1±63,5 г/га. Обилие барбуса Смита в более маловодной и мелководной реке Хау и ее устьевых протоках было статистически достоверно выше, чем в остальной части дельтово-эстуарной системы (8,5±22,2 экз./га и 110,7±248,7 г/га против 1,4±6,5 экз./га и 25,0±90,1 г/га). Исследования морфологических (пластических) показателей показали весьма низкую изменчивость признаков у половозрелых особей; коэффициент вариаций признаков был менее 10 %. Полученные данные свидетельствуют об отсутствии полового диморфизма и различных морфотипов в популяции, позволяют дать рекомендации по ограничению минимальных размеров при вылове и могут служить основой для дальнейших популяционных исследований вида.
    Description: Published
    Description: Refereed
    Keywords: Geographical distribution ; Smith's barb ; Puntioplites proctozystron ; Abundance ; Biomass ; Fish catch statistics ; Bottom trawl catches ; Fishery management ; Animal morphology ; ASFA_2015::F::Freshwater fish ; ASFA_2015::M::Morphometry ; ASFA_2015::B::Bottom trawling
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.79–90
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  • 4
    Publication Date: 2023-04-26
    Description: Phytoplankton is the base of every aquatic food web. During the assessment of the trophic status of the investigated lentic water body (within Lake City Housing Complex, Mankundu, Hooghly, West Bengal, India), phytoplankton composition and its temporal variation are proved to be the most important. In this study, 30 phytoplankton taxa have been recorded in various arrangements throughout the season. The maximum number of phytoplankton species with the highest Shannon–Weaver diversity index value represented the pre-monsoon season, whereas the least number of phytoplankton taxa and the lowest diversity indicators characterized the post-monsoon season. The development of algal bloom by one specific taxon, Botryococcus braunii, in the postmonsoon season indicates the change in the trophic status of this particular water body. As a criterion for the beginning of the algal bloom, an exceedance of 1 mg/L in nitrate concentration can be considered. The phytoplankton composition, values of various diversity indices, its density and species distribution pattern, and selected environmental parameters have been investigated, as well as the results of the analysis of rank abundance curves, which allowed for evaluation of the ecological status of this lentic water body. This study describes the change or shift in the ecosystem of the investigated water body towards eutrophication and establishes its pollution level as moderate to light.
    Description: Фитопланктон является базовой единицей каждой водной пищевой сети. Для изучения трофического статуса исследованного непроточного водоема (в жилищном комплексе Лейк-Сити, Манкунду, район Хугли, Западная Бенгалия, Индия) наиболее важны состав фитопланктона и его изменение во временном масштабе. В настоящем исследовании в течение сезона были зарегистрированы 30 таксонов фитопланктона в различных комбинациях. Предмуссонный сезон был представлен максимальным количеством видов фитопланктона с наивысшим значением разнообразия Шеннона–Уивера, а постмуссонный сезон характеризовался наименьшим количеством таксонов фитопланктона и самыми низкими показателями разнообразия. Развитие цветения одного из таксонов, а именно Botryococcus braunii, в постмуссонный сезон указывает на изменение трофического статуса этого водоема. Критерием начала цветения можно считать повышение концентрации нитратов выше 1 мг/л. Нами были изучены состав фитопланктона, значения различных индексов разнообразия, его плотность и структура распределения видов, выбранные параметры окружающей среды, а также результаты анализа ранговых кривых численности, что позволило расшифровать экологический статус этого непроточного водоема. В этом исследовании показано изменение или сдвиг экосистемы исследуемого водного объекта в сторону эвтрофикации и определено состояние загрязнения на уровне от умеренного до легкого.
    Description: Published
    Description: Refereed
    Keywords: Species diversity ; Abundance ; Biomonitoring ; Trophic status ; Environmental parameters ; Botryococcus braunii ; Фитопланктон ; Предмуссонный сезон ; Биомониторинг ; Концентрации нитратов ; Трофический статус ; ASFA_2015::P::Phytoplankton ; ASFA_2015::F::Freshwater pollution ; ASFA_2015::A::Algal blooms
    Repository Name: AquaDocs
    Type: Journal Contribution
    Format: pp.50-62
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