A5086638630- Identification and Quantification in Food
- Fish Biology and Ecology Studies
- Marine and fisheries research
- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Marine Bivalve and Aquaculture Studies
- Marine animal studies overview
- Genetic diversity and population structure
- Isotope Analysis in Ecology
- Marine Ecology and Invasive Species
- Morphological variations and asymmetry
- Environmental DNA in Biodiversity Studies
- Genetic and phenotypic traits in livestock
- Ocean Acidification Effects and Responses
- Maritime and Coastal Archaeology
- Food Industry and Aquatic Biology
- Cephalopods and Marine Biology
- Coral and Marine Ecosystems Studies
- Marine Biology and Ecology Research
- Calcium Carbonate Crystallization and Inhibition
- Animal Ecology and Behavior Studies
- Aquatic life and conservation
- Aquatic Ecosystems and Biodiversity
- Paleontology and Evolutionary Biology
- Reproductive biology and impacts on aquatic species
University of Bologna
2014-2024
Barco (Belgium)
2016
Abstract Shallow population structure is generally reported for most marine fish and explained as a consequence of high dispersal, connectivity large size. Targeted gene analyses more recently genome‐wide studies have challenged such view, suggesting that adaptive divergence might occur even when neutral markers provide genetic homogeneity across populations. Here, 381 SNP s located in transcribed regions were used to assess large‐ fine‐scale the European hake ( M erluccius merluccius ),...
Cartilaginous fish are particularly vulnerable to anthropogenic stressors and environmental change because of their K-selected reproductive strategy. Accurate data from scientific surveys landings essential assess conservation status develop robust protection management plans. Currently available often incomplete or incorrect as a result inaccurate species identifications, due high level morphological stasis, especially among closely related taxa. Moreover, several diagnostic characters...
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 554:99-113 (2016) - DOI: https://doi.org/10.3354/meps11799 Population connectivity and phylogeography of Mediterranean endemic skate Raja polystigma evidence its hybridization with parapatric sibling R. montagui N. Frodella1,*, Cannas2,10,*, A. Velonà1, P. Carbonara3,10, E. D. Farrell4, F. Fiorentino5,10, M....
Abstract Environmental factors are encoded in shells of marine bivalves the form geochemical properties, shell microstructure and growth rate. Few studies have investigated how is affected by habitat conditions natural populations commercial clam Chamelea gallina . Here, skeletal parameters (micro-density apparent porosity) (bulk density, linear extension net calcification rates) were relation to sizes environmental along a latitudinal gradient Adriatic Sea (400 km). Net rates increased with...
Phenotype can express different morphologies in response to biotic or abiotic environmental influences. Mollusks are particularly sensitive parameters, showing macroscale shell morphology variations parameters. Few studies concern at the scale levels along gradients. Here, we investigate features macro, micro and nanoscale, populations of commercially important clam Chamelea gallina a latitudinal gradient (~400 km) temperature solar radiation Adriatic Sea (Italian cost). Six clams with...
European hake (Merluccius merluccius) is one of the most economically important fish for Mediterranean Sea. It an predator deep upper shelf slope communities currently characterized by growth overexploitation: understanding hake's diet might support next generation management tools. However, all current studies depend on morphological identification prey remains in stomach content, with consequent limitations. In this study, we set up a metabarcoding approach based cytochrome oxidase I PCR...
Background Atlantic Bluefin Tuna (ABFT) shows complex demography and ecological variation in the Mediterranean Sea. Genetic surveys have detected significant, although weak, signals of population structuring; catch series analyses tagging programs identified ABFT spatial dynamics migration patterns. Here, we tested hypothesis that genetic structure is correlated with mean surface temperature salinity. Methodology We used six samples collected from Western Central integrated a new sample...
The blue shark (Prionace glauca, Linnaeus 1758) is one of the most abundant epipelagic inhabiting all oceans except poles, including Mediterranean Sea, but its genetic structure has not been confirmed at basin and interoceanic distances. Past tagging programs in Atlantic Ocean failed to find evidence migration sharks between adjacent Atlantic, despite extreme vagility species. Although high rate by-catch basin, date no study on was carried out, which constitutes a significant knowledge gap,...
Background. European hake, Merluccius merluccius, is a major predator in demersal ecosystem, and of great importance for the fishery. Knowledge feeding ecology fish species essential implementing multispecies approach to fishery management. Therefore this work was intended analyse stomach contents dietary changes according size, season, sex, depth better understanding ecological role Adriatic marine communities. Materials methods. A total 1646 specimens hake were collected Sea by...
Investigating marine species population structure in a multidisciplinary framework can reveal signatures of potential local adaptation and the consequences for management conservation. In this study we delineate common sole ( Solea solea ) Mediterranean Sea using genomic otolith data, based on single nucleotide polymorphism (SNPs) markers, shape trace element composition data. We correlated SNPs with environmental spatial variables to evaluate impact selected features actual structure....
The stomach contents of 1096 specimens Chelidonichthys lucerna were examined in order to analyse their diet composition according fish size, sex, depth and season. Sampling was carried out from May 2005 March 2007 during several bottom trawl surveys the Adriatic Sea (north-east Mediterranean). Feeding activity more intense juveniles than adults. most important prey Crustacea (mainly Decapoda: Brachyura, such as Goneplax rhomboides , Liocarcinus spp., Philocheras spp.) Teleostei European...
Background The unique and complex paleoclimatic paleogeographic events which affected the Mediterranean Sea since late Miocene deeply influenced distribution evolution of marine organisms shaped their genetic structure. Following Messinian salinity crisis sea-level fluctuations during Pleistocene, several species developed deep differentiation, some underwent rapid radiation. Here, we consider two most prioritized groups for conservation in light evolutionary history: sharks rays...
Mean temperature (MTC) and mean trophic level (MTL) spatiotemporal patterns of MEDITS survey catches were examined in 13 geographic statistical areas (GSAs) the Mediterranean between 1994 2016. The study aimed to detect changes demersal community structure related anthropogenic impacts. A generalized additive modelling approach was used examine effects year GSA on MTC MTL indexes bottom by haul. For index, significant only 4 GSAs, while for it 5. Higher values observed central eastern areas....
Among the main measures adopted to reduce anthropogenic impacts on elasmobranch communities, understanding ecology of deep-sea sharks is paramount importance, especially for potentially vulnerable species highly represented in bycatch composition commercial fisheries such as blackmouth catshark Galeus melastomus . In present work, we unravelled first indication population genetic structure G. by using a novel and effective panel nuclear, polymorphic DNA markers compared our results with...
Summary Length–weight relationships were estimated for the first time seven species of gurnards (Triglidae) based on data collected over past 27 years in Adriatic Sea (northeast Mediterranean). Results show significantly different between juveniles and adults (females males combined) Aspitrigla cuculus, Eutrigla gurnardus, Chelidonichthys lucerna Lepidotrigla cavillone. Isometric growth is indicated four species, allometric all species.
Stomach contents of 283 anglerfish (Lophius budegassa), collected in the Adriatic Sea (north-eastern Mediterranean) from experimental trawl surveys 2005 and 2006, were examined to assess their diet as influenced by fish size, sex water depth. Changes food quantities stomach observed, percentage empty stomachs decreasing with increasing body size No differences found between male female diets. The is essentially an 'opportunistic feeder' that consumes mainly fishes, crustaceans molluscs....
Abstract The Mediterranean starry ray ( Raja asterias ) populations within the Sea are susceptible to high rates of bycatch in multispecies trawl fisheries. Understanding its population structure and identifying critical habitats crucial for assessing species vulnerability setting groundwork specific management measures prevent decline. To assess R. Mediterranean, genetic variation nine samples at one mitochondrial marker eight nuclear microsatellite loci was analysed. Moreover, 172 egg...
Abstract The Northern Adriatic Sea (FAO Geographical Sub-Area 17) is one of the most productive fishing areas Mediterranean and it includes a broad diversity habitats. In basin, Pomo Pit (200–273 m depth) important aggregation for some demersal stocks shared in an spawning/nursery area European hake ( Merluccius merluccius ). Through metabarcoding approach we investigated feeding habits hake, both inside outside Pit, their temporal variability comparing samples collected 2016 2014. Our...
A multi-specific approach in fish diet studies provides insight into the complexity of trophic interactions marine communities. The feeding habits three gurnard species, Aspitrigla cuculus, Chelidonichthys lucerna and Eutrigla gurnardus (Scorpaeniformes: Triglidae), from north-middle Adriatic Sea were studied to evaluate prey-resource partitioning amongst species within comparing juveniles’ adults’ for each species. total 1818 specimens (390 A. 973 C. lucerna, 455 E. gurnardus) collected by...