Alessandro Ligas

ORCID: 0000-0003-1036-3553
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About
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Research Areas
  • Marine and fisheries research
  • Marine Bivalve and Aquaculture Studies
  • Coral and Marine Ecosystems Studies
  • Marine Ecology and Invasive Species
  • Fish Biology and Ecology Studies
  • Identification and Quantification in Food
  • Marine Biology and Ecology Research
  • Ichthyology and Marine Biology
  • Fish Ecology and Management Studies
  • Marine and environmental studies
  • Food Industry and Aquatic Biology
  • Crustacean biology and ecology
  • Genetic diversity and population structure
  • Turtle Biology and Conservation
  • Parasite Biology and Host Interactions
  • Cephalopods and Marine Biology
  • Regional Development and Management Studies
  • European and International Law Studies
  • Environmental and Biological Research in Conflict Zones
  • Coastal and Marine Management
  • Microplastics and Plastic Pollution
  • Amphibian and Reptile Biology
  • Aquatic Ecosystems and Biodiversity
  • Echinoderm biology and ecology
  • Isotope Analysis in Ecology

Consorzio per il Centro Interuniversitario di Biologia Marina ed Ecologia Applicata G. Bacci
2015-2024

Agri Food and Biosciences Institute
2013-2014

Ospedale Misericordia - Grosseto
2008-2013

Abstract This study evaluates the fishing pressure exerted by most common recreational and professional, small-scale practices on vulnerable target bycatch species in coastal offshore waters of western Mediterranean. By combining multiple data sources, we assembled a unique dataset catches at sites these areas (RF) fisheries (SSF), covering period from 1997 to 2015. Furthermore, framework with which identify among all caught is provided; it based IUCN Red List, international conventions for...

10.1093/icesjms/fsz071 article EN ICES Journal of Marine Science 2019-03-29

Worldwide, states are gazetting new Marine Protected Areas (MPAs) to meet the international commitment of protecting 30% seas by 2030. Yet, protection benefits only come into effect when an MPA is implemented with activated regulations and actively managed through continuous monitoring adaptive management. To assess if MPAs rule or exception, we used Mediterranean Black Seas as a case study, retrieved information on activities for 878 designated in ten European Union (EU) countries. We...

10.1016/j.jenvman.2024.120476 article EN cc-by Journal of Environmental Management 2024-03-01

The study was carried out in two fishing grounds on the Mediterranean continental shelf: one Adriatic Sea and Catalan Sea. Samplings board otter trawlers were performed from November 2002 to December 2003 February January 2004 ground affected by high intensity June, while area highly exploited September February. Fishing activity closed for 45 days, 62 days area; both periods summer. Totals of 92 88 species collected respectively. composition retained discarded fractions showed close...

10.3989/scimar.2007.71n4765 article EN cc-by Scientia Marina 2007-12-31

Abstract Temporal variation in the population abundance of deep‐water rose shrimp, Parapenaeus longirostris (Lucas, 1846) (Decapoda, Penaeidae), and Norway lobster, Nephrops norvegicus (Linnaeus, 1758) Nephropidae), Tyrrhenian Sea (NW Mediterranean), were evaluated using time‐series data (1994–2008) from experimental trawl surveys commercial landings. The influence several environmental variables (sea surface temperature, wind‐mixing index NAO index) fishing effort indices (number days at...

10.1111/j.1439-0485.2011.00440.x article EN Marine Ecology 2011-04-01

The present study provides updated information on the occurrence, abundance and biomass distribution patterns length frequencies of Merluccius merluccius in Mediterranean Sea, by analysing a time series data from International Trawl Surveys (MEDITS) 1994 to 2015. highest values were observed Sardinian Seas. use generalized additive model, which standardized indices (kg km–2) analysed as function environmental variables, explained how ecological factors could affect spatio-temporal European...

10.3989/scimar.04988.12a article EN cc-by Scientia Marina 2019-12-30

Abstract The presence of plastic waste in the marine environment has driven scientific community to make significant efforts study and mitigate its possible effects. One critical aspects is determine if how an increase ingestion events may occur as a result accumulation on seabed. In this study, G. melastomus examined for ability indirectly provide information amount macroplastics accumulating seafloor. Plastic explored by describing feeding habits species, which have potential very useful...

10.1007/s00227-022-04084-1 article EN cc-by Marine Biology 2022-07-01

Abstract Marine biodiversity monitoring in the Mediterranean’s increasingly threatened ecosystems is crucial for effective ecosystem conservation and management. Here, we leveraged Mediterranean International Trawl Survey program (MEDITS) to implement eDNA sampling through recently tested ‘metaprobe’ procedure characterize fish assemblages three separate areas off Italian coasts: Northern Adriatic Sea (NoAS), Ligurian Tyrrhenian (LNTS), Sardinian (SaS). By combining information from two...

10.1007/s11160-024-09874-y article EN cc-by Reviews in Fish Biology and Fisheries 2024-07-17

The recent establishment of the “landing obligation” under reformed EU Common Fishery Policy has twofold objective reducing excessive practice discarding unwanted catch at sea and encouraging more selective sustainable fisheries. Within this context, awareness spatial distribution potential catches is important for devising management measures aimed to decrease discards. This study analyzed Hot Spot density areas demersal fish crustaceans below Minimum Conservation Reference Size (MCRS) in...

10.3389/fmars.2021.610241 article EN cc-by Frontiers in Marine Science 2021-02-05

The time series of elasmobranch catch rates off the Tuscany coasts (NW Mediterranean) were investigated by means min/max auto-correlation factor analysis in order to estimate variations population abundance and evaluate influence environmental anthropogenic factors. analyses highlighted a general decreasing trend sharks skates from 1961 mid-1990s, mainly influenced increase fishing effort. Since 1990s, EU Common Fishery Policy for Mediterranean has promoted reduction fleets through...

10.3989/scimar.03654.21c article EN cc-by Scientia Marina 2013-01-24

The main characteristics concerning the distribution of two most important decapod crustaceans commercial interest in Mediterranean Sea, deep-water rose shrimp, Parapenaeus longirostris, and Norway lobster, Nephrops norvegicus, are studied European waters. study is based on data collected under MEDITS trawl surveys from 1994 to 2015 Gibraltar Straits northeastern Levantine Basin (Cyprus waters). observed differences can be interpreted as different responses environmental drivers related...

10.3989/scimar.04858.27a article EN cc-by Scientia Marina 2019-04-11

The Mediterranean Sea has a long-lasting history of fishery exploitation that, together with other anthropogenic impacts, led to declines in several marine organisms. In particular, elasmobranch populations have been severely impacted, drastic decreases abundance and species diversity. Based on their experience, fishers can provide information occurrence, behavioural traits long-term scale, therefore contributing research the poorly studied biological aspects elusive or rare species. this...

10.12681/mms.25306 article EN Mediterranean Marine Science 2021-10-14

Mortality resulting from interactions with fishing gears represent an important threat to sensitive species globally. In this study, we address issue by defining five groups of marine megafauna (marine mammals, seabirds, demersal and pelagic elasmobranchs, sea turtles), conducting a productivity-susceptibility analysis (PSA) within the context data-limited fisheries in Mediterranean Black Sea. Although there are significant differences among each group, approach has been considered much more...

10.3389/fmars.2024.1411033 article EN cc-by Frontiers in Marine Science 2024-09-24

Three adult-sized Loggerhead Turtles (Caretta caretta), captured incidentally by bottom trawlers, were tracked satellite in the Mediterranean Sea for a substantial part of their annual cycle, including period preceding nesting. The three turtles performed long-distance movements that variable between individuals but shared common features such as seasonal migration. Very prolonged dives (up to over 300 min) associated with temperature drops below 18°C , likely an overwintering strategy. Our...

10.1670/11-173 article EN Journal of Herpetology 2013-06-01
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