scholarly journals Exploring connectivity between spawning and nursery areas of Mullus barbatus (L., 1758) in the Mediterranean through a dispersal model

2017 ◽  
Vol 26 (4) ◽  
pp. 476-497 ◽  
Author(s):  
Francesco Gargano ◽  
Germana Garofalo ◽  
Fabio Fiorentino
Keyword(s):  
Nursery Areas ◽  
Dispersal Model ◽  
Mullus Barbatus ◽  
The Mediterranean

scholarly journals Explorative analysis on red mullet (Mullus barbatus) ageing data variability in the Mediterranean

2020 ◽  
Vol 83 (S1) ◽  
pp. 271 ◽  
Author(s):  
Pierluigi Carbonara ◽  
Walter Zupa ◽  
Aikaterini Anastasopoulou ◽  
Andrea Bellodi ◽  
Isabella Bitetto ◽  
...  
Keyword(s):  
Growth Models ◽  
Age Groups ◽  
Geographical Location ◽  
Principal Component ◽  
Age Validation ◽  
Large Variability ◽  
False Rings ◽  
Red Mullet ◽  
Mullus Barbatus ◽  
The Mediterranean

The uncertainty in age estimation by otolith reading may be at the root of the large variability in red mullet (Mullus barbatus) growth models in the Mediterranean. In the MEDITS survey, red mullet age data are produced following the same sampling protocol and otolith reading methodology. However, ageing is assigned using different interpretation schemes, including variations in theoretical birthdate and number of false rings considered, in addition to differences in the experience level of readers. The present work analysed the influence of these variations and the geographical location of sampling on red mullet ageing using a multivariate approach (principal component analysis). Reader experience was the most important parameter correlated with the variability. The number of rings considered false showed a significant effect on the variability in the first age groups but had less influence on the older ones. The effect of the theoretical birthdate was low in all age groups. Geographical location had a significant influence, with longitude showing greater effects than latitude. In light of these results, workshops, exchanges and the adoption of a common ageing protocol based on age validation studies are considered fundamental tools for improving precision in red mullet ageing.

scholarly journals Identification and Characterization of Nursery Areas of Red Mullet Mullus barbatus in the Central Tyrrhenian Sea

2017 ◽  
Vol 9 (1) ◽  
pp. 203-215 ◽  
Author(s):  
Alessandro Criscoli ◽  
Paolo Carpentieri ◽  
Francesco Colloca ◽  
Andrea Belluscio ◽  
Giandomenico Ardizzone
Keyword(s):  
Tyrrhenian Sea ◽  
Nursery Areas ◽  
Red Mullet ◽  
Mullus Barbatus ◽  
Identification And Characterization

scholarly journals Hydrodynamic controls on connectivity of the high commercial value shrimp Parapenaeus longirostris (Lucas, 1846) in the Mediterranean Sea

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Giovanni Quattrocchi ◽  
Matteo Sinerchia ◽  
Francesco Colloca ◽  
Fabio Fiorentino ◽  
Germana Garofalo ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Current Knowledge ◽  
Stock Assessment ◽  
Spatial Scales ◽  
Management Plan ◽  
Nursery Areas ◽  
The North ◽  
North Side ◽  
Parapenaeus Longirostris ◽  
The Mediterranean

AbstractIn the Strait of Sicily (SoS), a wide passage of the Mediterranean Sea, Parapenaeus longirostris, (Lucas, 1846; DPS hereafter) is the main target species of trawl fisheries, with an estimated annual market value of about 80 million euro. The exploitation of this resource is shared between Italian, Tunisian and Maltese bottom trawlers and its management raises social, economic and environmental interests. Recent stock assessment revealed high fishing mortalities and low size at first capture, thus promoting the adoption of a strategic plan for a sustainable management. However, the current knowledge of the geographical boundaries of the stock, supporting  the implementation of such management plan is still poor. In this respect, under different hydrodynamic regimes, particle-tracking modelling was used to explore connectivity between both, known and unexplored, spawning and nursery areas of DPS in the SoS. Ensembles scenarios derived by model outcomes displayed decadal changes in connectivity between spawning and nursery areas in the north side of the SoS, hence confirming the presence of a single stock in this area. Expanding the area of investigation, the model results showed weak connectivity between spawning ground in the north side of SoS and nurseries on the African shelf-break. This method could support the spatial management of the stock, such as the protection of the nursery and spawning areas, by providing estimates of how connectivity is influenced by hydrodynamic regimes at different temporal and spatial scales.

scholarly journals Evidence of subtle genetic structure in the sympatric species Mullus barbatus and Mullus surmuletus (Linnaeus, 1758) in the Mediterranean Sea

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Sanja Matić-Skoko ◽  
Tanja Šegvić-Bubić ◽  
Ivana Mandić ◽  
David Izquierdo-Gomez ◽  
Enrico Arneri ◽  
...  
Keyword(s):  
Genetic Structure ◽  
Mediterranean Sea ◽  
Sympatric Species ◽  
Mullus Barbatus ◽  
Mullus Surmuletus ◽  
The Mediterranean
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