The demersal faunal assemblage of the north-western Ionian Sea (central Mediterranean): current knowledge and perspectives

2010 ◽  
Vol 26 (sup1) ◽  
pp. 219-240 ◽  
Author(s):  
P. Maiorano ◽  
L. Sion ◽  
R. Carlucci ◽  
F. Capezzuto ◽  
A. Giove ◽  
...  
Keyword(s):  
Current Knowledge ◽  
Ionian Sea ◽  
Faunal Assemblage ◽  
Central Mediterranean ◽  
The North ◽  
North Western

scholarly journals Deep-Water Cartilaginous Fishes in the Central Mediterranean Sea: Comparison between Geographic Areas with Two Low Impact Tools for Sampling

2021 ◽  
Vol 9 (7) ◽  
pp. 686
Author(s):  
Angela Carluccio ◽  
Francesca Capezzuto ◽  
Porzia Maiorano ◽  
Letizia Sion ◽  
Gianfranco D’Onghia
Keyword(s):  
Adriatic Sea ◽  
Fish Habitat ◽  
Conservation Status ◽  
Abundant Species ◽  
Cartilaginous Fish ◽  
Fish Diversity ◽  
Ionian Sea ◽  
Central Mediterranean ◽  
The North ◽  
North Western

Baited lander represents a low impact technique, an alternative to the traditional trawl sampling for collecting data on fish diversity and abundance, especially for threatened species such as Chondrichthyes living in sensitive habitats. In this study, distribution and abundance of cartilaginous fish were compared between two geographic areas, the southern Adriatic Sea and the north-western Ionian Sea, with two low impact sampling gears, an experimental bottom longline and a baited lander. Species diversity was evaluated by applying ecological indices and difference in mean abundances were tested using multivariate analysis. A total of 13 species of cartilaginous fish were collected. Significant differences in the assemblage recorded in the same area using different sampling tools were detected and no significant differences were detected among different areas explored with the same method. Using longline, the most abundant species collected in both areas was Galeus melastomus, while using lander, the most observed species were Dalatias licha in the southern Adriatic Sea and Hexanchus griseus in the north-western Ionian Sea. According to IUCN classification, of the 13 species collected, 2 are near threatened and 5 are threatened. A better governance of sensitive habitats coinciding with the essential fish habitat for these species would ensure them a better conservation status.

scholarly journals Spatio-temporal changes of Munida Rutllanti Zariquiey-Alvarez, 1952 (Decapoda: Galatheidae) in the North-Western Ionian Sea (Central Mediterranean)

2013 ◽  
Vol 14 (3) ◽  
pp. 42 ◽  
Author(s):  
P. MAIORANO ◽  
F. CAPEZZUTO ◽  
G. D'ONGHIA ◽  
A. TURSI
Keyword(s):  
Sharp Decrease ◽  
Progressive Increase ◽  
Ionian Sea ◽  
Central Mediterranean ◽  
Widespread Occurrence ◽  
The North ◽  
Minimum Depth ◽  
Spatio Temporal ◽  
North Western ◽  
Over Time

The spatio-temporal pattern of Munida rutllanti distribution in the north-western Ionian Sea has been studied. Data were collected during 14 experimental trawl surveys conducted from 1997 to 2010 as part of the international MEDITS project. The hauls were carried out during day-light hours between depths of 10 and 800 m in the spring season. A progressive increase in the abundance index (N/km2) of M. rutllanti was observed from 2000 to 2008, then a sharp decrease was shown in the last two years. The greatest and lowest abundance indices were observed in the Apulian and central Calabrian sub-areas, respectively. The species was collected between 107 and 795 m in depth, with a significant increase and decrease over time in the maximum and minimum depth of finding, respectively. A highly significant increase over time in the mean carapace length was also observed in the whole study area. The widespread occurrence and increasing abundance of this species in the Ionian Sea could be related to the increase in temperature and the variation in hydrographic conditions which occurred in the Ionian basin during the EMT-BiOS phenomenon.

scholarly journals Ecosystem functioning of two marine food webs in the North‐Western Ionian Sea (Central Mediterranean Sea)

2019 ◽  
Vol 9 (18) ◽  
pp. 10198-10212 ◽  
Author(s):  
Pasquale Ricci ◽  
Simone Libralato ◽  
Francesca Capezzuto ◽  
Gianfranco D’Onghia ◽  
Porzia Maiorano ◽  
...  
Keyword(s):  
Food Webs ◽  
Mediterranean Sea ◽  
Ecosystem Functioning ◽  
Ionian Sea ◽  
Central Mediterranean ◽  
Marine Food Webs ◽  
The North ◽  
Central Mediterranean Sea ◽  
Marine Food ◽  
North Western

Spawning and recruitment ofPhycis blennoides(Phycidae) from the north‐western Ionian Sea (middle‐eastern Mediterranean)

1998 ◽  
Vol 65 (sup1) ◽  
pp. 203-209 ◽  
Author(s):  
Alfonso Matarrese ◽  
Gianfranco D'onghia ◽  
Mafalda Basanisi ◽  
Francesco Mastrototaro
Keyword(s):  
Eastern Mediterranean ◽  
Middle Eastern ◽  
Ionian Sea ◽  
The North ◽  
North Western

Large-scale seasonal distribution of fin whales (Balaenoptera physalus) in the central Mediterranean Sea

2008 ◽  
Vol 88 (6) ◽  
pp. 1253-1261 ◽  
Author(s):  
Mehdi Aïssi ◽  
Antonio Celona ◽  
Giorgia Comparetto ◽  
Renata Mangano ◽  
Maurizio Würtz ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Western Mediterranean ◽  
High Abundance ◽  
Central Mediterranean ◽  
Balaenoptera Physalus ◽  
Feeding Ground ◽  
The North ◽  
Central Mediterranean Sea ◽  
Fin Whales ◽  
North Western

Fin whales (Balaenoptera physalus) are the only mysticete regularly found in the Mediterranean Sea. Its exceptional high abundance during the summer period in the north-western Mediterranean is essentially due to productive waters, but outside of this spatio-temporal window its distribution still remains quite unknown. This paper investigates the distribution of the fin whale on large-scales during the 2002–2006 period. Three areas of the central Mediterranean Sea were selected: the Ligurian Sea in the north-western Mediterranean belonging to the Pelagos Sanctuary; the area connecting both Mediterranean basins in the south-western Mediterranean, the Strait of Messina; and the waters surrounding the island of Lampedusa, in the central Mediterranean. Of the 41,270 km covered by the three surveys, a total of 98 sightings was recorded corresponding to 198 fin whales. Results display a year round distribution along synchronic seasonal dispatching, with a feeding behaviour occurrence in the northern part of the Pelagos Sanctuary during late spring and summer. They indicate high abundance in the Lampedusa area from late winter to early spring manifesting feeding activity. In the Strait of Messina, our results point out the importance of this area as a seasonal feeding ground and an important location for regular autumn transfers between both Mediterranean basins. According to the feeding ground in the two Mediterranean basins, whales change foraging strategy, one being single animals or animal pairs searching for prey in the water column while the other strategy is associated with more individuals feeding on the surface. The strategies differ also by their ecological conditions, such as depth affinity and shoreline distance.

scholarly journals High resolution paleo-environmental changes during the Sapropel 1 in the North Ionian Sea, central Mediterranean

The Holocene ◽  
2020 ◽  
Vol 30 (11) ◽  
pp. 1504-1515 ◽  
Author(s):  
Helena Checa ◽  
Giulia Margaritelli ◽  
Leopoldo D Pena ◽  
Jaime Frigola ◽  
Isabel Cacho ◽  
...  
Keyword(s):  
High Resolution ◽  
Water Column ◽  
Surface Waters ◽  
Environmental Changes ◽  
Nutrient Content ◽  
Ionian Sea ◽  
Central Mediterranean ◽  
White Variety ◽  
The North ◽  
Geochemical Analyses

High-resolution paleoceanographic reconstruction of surface water properties during the most recent Sapropel event (S1) has been carried out by means of quantitative analyses of planktonic foraminiferal assemblages, planktonic foraminiferal oxygen isotopes (δ18O) and XRF elemental data from a 655 m depth core recovered in the North Ionian Sea. The results show that the S1 interval presents two distinctive warm phases (S1a and S1b), separated by a cold interruption event (S1i). High resolution faunal and geochemical analyses allow to identify two sub-phases within S1a interval, the oldest one has similar characteristics to S1b interval while the youngest sub-phase has less stratified surface waters with relatively lower nutrient content. The high abundance of Globigerinoides ruber white variety opposite to the low percentages of Neogloboquadrina pachyderma during the pre-S1 phase suggests that the onset of surface waters stratification occurred prior to the beginning of Sapropel deposition, acting as a pre-conditioning phase. Paleo-productivity proxies indicate that the deposition of S1 initiated after an increase in nutrient content, potentially related to increased fluvial inputs. Based on the integrated ecological interpretation of our records we argue that S1a and S1b are characterized as warm, stratified and nutrient rich surface waters in the Ionian Sea, while proxies related to oxygen content indicate dysoxic deep waters linked to a combination of the high nutrient content and stratified water column. The S1 interruption phase is characterized by the entrance of colder waters that caused mixing of the stratified water column and re-ventilation of the deep dysoxic waters.

The bathyal benthopelagic fauna in the north-western Ionian Sea: structure, patterns and interactions

2010 ◽  
Vol 26 (sup1) ◽  
pp. 199-217 ◽  
Author(s):  
Francesca Capezzuto ◽  
Roberto Carlucci ◽  
Porzia Maiorano ◽  
Letizia Sion ◽  
Daniela Battista ◽  
...  
Keyword(s):  
Ionian Sea ◽  
The North ◽  
Structure Patterns ◽  
North Western
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