PAOLO GUIDETTI results 37
· Newest (Page 1/2, per page 25)
Author: PAOLO GUIDETTI ×Clear All Filters
Search Results
Empirical data about small-scale fishery indicators, such as catches and revenues, are generally scarce and scattered. In this study, we examined for the first time the relationships between fish biomass estimated through underwater visual census (UVC) and small-scale fishery indicators, namely catch per unit effort (CPUE) and revenue per unit effort (RPUE). Significant correlations could provide a practical and useful means t...
Local Ecological Knowledge (LEK) from fishers and sea users is invaluable for reconstructing the occurrences of data deficient and vulnerable fish species, particularly target species. This study explores the distribution patterns of the data-deficient wreckfish Polyprion americanus in the Ligurian Sea (NW Mediterranean Sea) using semi-structured interviews with 40 sea users (27 fishers and 13 observational data providers). We...
Fishing activities alter food web diversity and functioning. Trophic level (TL) has been used as an indicator to assess such impacts on populations and assemblages. We reviewed the scientific literature that examined the relationship between fishing and the trophic aspects of fish species and communities, by focussing on TL. We narrowed the research to the Mediterranean Sea, where fishing is an important economic income for so...
Platelet hyperreactivity and frailty in a mouse model of Alzheimer’s disease are prevented by anti-oxidant treatmentNARA Subscribed
Frailty is an age-related syndrome commonly associated with different comorbidities, and its occurrence is particularly frequent in patients with Alzheimer’s disease (AD). A persisting low-grade inflammation has been suggested to favor the onset of both AD and frailty. Besides their role in hemostasis and thrombosis, blood platelets are true inflammatory cells, and their direct contribution to the onset and progression of AD h...
Ongoing bioinvasions of Lessepsian species via the Suez Canal have profoundly altered marine coastal ecosystems in the eastern Mediterranean. In response to these Lessepsian migrations, some indigenous fishes have been observed to have widened their trophic niches and diversified their foraging strategies. Effects of invasive taxa are further compounded by modern anthropogenic drivers such as overfishing, habitat degradation,...
Home range size is a fundamental trait that can affect the probability of fish being harvested and, at the same time, may be affected by fishing. The relationship between home range size and fishing will impact the effectiveness of fully protected areas (FPAs), as it will influence the number of fish moving into fished areas, affecting both spillover and edge effects. One hypothesis is that individuals within FPAs will present...
The small-scale fisheries (SSF) sector has attracted considerable attention over the last decade due to its major importance in sustaining the livelihoods of coastal communities worldwide, poverty alleviation, food security, social wealth and traditions. Despite this importance, quantitative and qualitative information on SSF is still largely lacking and when available, it tends to be scattered or very localized. SSF are also...
In the last decades, climate change and human pressures have increasingly and dramatically impacted the ocean worldwide, calling for urgent actions to safeguard coastal marine ecosystems. The European Commission, in particular, has set ambitious targets for member states with two major directives, the Water Framework Directive (WFD) and the Marine Strategy Framework Directive (MSFD), both designed to protect the marine environ...
Multi‐specific small‐scale fisheries rely on few, locally essential, species: Evidence from a multi‐area study in the MediterraneanNARA Subscribed
Achieving sound management of small‐scale fisheries (SSFs) is globally recognized a key priority for sustaining livelihoods, local economies, social wealth and cultural heritage in coastal areas. The paucity of information on SSFs often prevents the proper assessment of different socio‐ecological aspects, potentially leading to draw inappropriate conclusions and hampering the development and adoption of effective policies to f...
Biological invasions represent one of the main threats to marine biodiversity. From a conservation perspective, especially in the context of increasing sea warming, it is critical to examine the suitability potential of geographical areas for the arrival of Range‐Expanding Introduced and Native Species (REINS), and hence anticipate the risk of such species to become invasive in their new distribution areas. Here, we developed...
Assessing individuals’ abundance, residency (presence at a site within a certain period) and site fidelity (tendency to return to the same site in subsequent seasons or years) is crucial for evaluating and improving the effectiveness of spatial conservation/management measures regarding ecologically and socio-economically valuable species. Using underwater visual census (UVC) and photo-identification (photo-ID) techniques, we...
Environmental DNA effectively captures functional diversity of coastal fish communitiesNARA Subscribed
Robust assessments of taxonomic and functional diversity are essential components of research programmes aimed at understanding current biodiversity patterns and forecasting trajectories of ecological changes. Yet, evaluating marine biodiversity along its dimensions is challenging and dependent on the power and accuracy of the available data collection methods. Here we combine three traditional survey methodologies (underwater...
Assessing spillover from marine protected areas and its drivers: A meta‐analytical approachNARA Subscribed
Overfishing may seriously impact fish populations and ecosystems. Marine protected areas (MPAs) are key tools for biodiversity conservation and fisheries management, yet the fisheries benefits remain debateable. Many MPAs include a fully protected area (FPA), restricting all activities, within a partially protected area (PPA) where potentially sustainable activities are permitted. An effective tool for biodiversity conservatio...
This study describes the first ever reported direct observation of a pair spawning event and the reproductive liveries of the white grouper, Epinephelus aeneus. Spawning took place on a rocky bank located in the Marine Protected Area (MPA) of Tavolara-Punta Coda Cavallo (NE Sardinia, Italy), in the Western Mediterranean Sea. In the evening of August 4th, 2018, the spawning of two large-sized individuals (~90 cm total length),...