Effects of trawling activity on the bamboo-coral Isidella elongata and the sea pen Funiculina quadrangularis along the Gioia Canyon (Western Mediterranean, southern Tyrrhenian Sea)

2018 ◽  
Vol 169 ◽  
pp. 214-226 ◽  
Author(s):  
Martina Pierdomenico ◽  
Tommaso Russo ◽  
Stefano Ambroso ◽  
Andrea Gori ◽  
Eleonora Martorelli ◽  
...  
Keyword(s):  
Western Mediterranean ◽  
Tyrrhenian Sea ◽  
Southern Tyrrhenian Sea

scholarly journals A Histological Study of Ovarian Development in the Giant Red ShrimpAristaeomorpha foliacea(Crustacea: Decapoda: Aristeidae) from the Southern Tyrrhenian Sea (Western Mediterranean)

2012 ◽  
Vol 2012 ◽  
pp. 1-9 ◽  
Author(s):  
Anna Perdichizzi ◽  
Laura Pirrera ◽  
Valeria Micale ◽  
Ugo Muglia ◽  
Paola Rinelli
Keyword(s):  
Ovarian Development ◽  
Developmental Stages ◽  
Histological Study ◽  
Western Mediterranean ◽  
Ovary Development ◽  
Tyrrhenian Sea ◽  
Length Frequency ◽  
Southern Tyrrhenian Sea ◽  
Aristaeomorpha Foliacea ◽  
Trawl Surveys

The reproductive features of the giant red shrimp,Aristaeomorpha foliacea, were investigated in the southern Tyrrhenian sea by experimental trawl sampling. The annual length-frequency distribution showed a multimodal trend in females, ranging between 16 and 67 mm carapace length (CL), and a unimodal trend in males (18–45 mm CL). Mature males occurred in different proportions all year round, while females displayed seasonal maturity (June—September), with a peak in July. Six oocyte developmental stages were identified, the most advanced of which (Pv, postvitellogenic) had never been described before in this species. Ovary development followed a group-synchronous pattern, with the yolked oocyte stock clearly separated from the reservoir of unyolked oocytes, suggesting thatA. foliaceais a total spawner, with determinate fecundity. Based upon histological findings, a revision of macroscopic maturity staging employed in Mediterranean bottom trawl surveys (MEDITS) is proposed.

Summer larval fish assemblages in the Southern Tyrrhenian Sea (Western Mediterranean Sea)

2014 ◽  
Vol 36 (1) ◽  
pp. 104-117 ◽  
Author(s):  
Daniela Giordano ◽  
Adriana Profeta ◽  
Barbara Busalacchi ◽  
Roberta Minutoli ◽  
Letterio Guglielmo ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Fish Assemblages ◽  
Larval Fish ◽  
Western Mediterranean ◽  
Tyrrhenian Sea ◽  
Western Mediterranean Sea ◽  
Southern Tyrrhenian Sea

scholarly journals Diet and trophic level of scaldfish Arnoglossus laterna in the southern Tyrrhenian Sea (western Mediterranean): contrasting trawled versus untrawled areas

2009 ◽  
Vol 89 (4) ◽  
pp. 817-828 ◽  
Author(s):  
E. Fanelli ◽  
F. Badalamenti ◽  
G. D'Anna ◽  
C. Pipitone
Keyword(s):  
Trophic Level ◽  
Feeding Ecology ◽  
Western Mediterranean ◽  
Tyrrhenian Sea ◽  
Ontogenetic Changes ◽  
Bottom Trawling ◽  
Significant Difference ◽  
Southern Tyrrhenian Sea ◽  
Benthic Prey ◽  
Prey Items

This study assesses the effects of bottom trawling on the feeding ecology of the scaldfish Arnoglossus laterna, by contrasting diets in an untrawled area and in two trawled areas off northern Sicily (western Mediterranean): the Gulf of Castellammare (which hosts a 200 km2 no-trawl area) and the gulfs of Termini Imerese and Sant'Agata. Scaldfish were collected in May–June 2005 using a commercial otter trawler between 40 and 80 m on muddy bottoms. Our data show that scaldfish is a selective feeder and consumes similar prey items in the three gulfs, although between-site differences in the relative prey abundance in the stomachs were detected. In the three gulfs scaldfish fed mainly on the crab Goneplax rhomboides and on the fish Lesueurigobius suerii, but there was an increase in the consumption of L. suerii and the shrimp Alpheus glaber in the trawled areas. Ontogenetic changes were evident in the diet of scaldfish, with juveniles preying mainly upon suprabenthic species, e.g. mysids and small decapods. While significant differences occurred in the diet of juveniles among all areas due to natural spatial variability, variations in the diet of adults, which feed on benthic prey, occurred between untrawled and trawled areas. These variations were clearly due to trawling disturbance, and no significant difference was detected in the diet of adults between the two trawled areas. On the contrary, the trophic level (δ15N values) of scaldfish did not vary between trawled and untrawled areas and between juveniles and adults. Changes in the source of carbon, as detected by δ13C values, were evident between juveniles and adults, evidencing a shift from a suprabenthic (juveniles) to a benthic (adults) diet.

Trophodynamics of suprabenthic fauna on coastal muddy bottoms of the southern Tyrrhenian Sea (western Mediterranean)

2009 ◽  
Vol 61 (3) ◽  
pp. 174-187 ◽  
Author(s):  
E. Fanelli ◽  
J.E. Cartes ◽  
F. Badalamenti ◽  
P. Rumolo ◽  
M. Sprovieri
Keyword(s):  
Western Mediterranean ◽  
Tyrrhenian Sea ◽  
Southern Tyrrhenian Sea

Meso-scale variability of coastal suprabenthic communities in the southern Tyrrhenian Sea (western Mediterranean)

2011 ◽  
Vol 91 (3) ◽  
pp. 351-360 ◽  
Author(s):  
E. Fanelli ◽  
J.E. Cartes ◽  
F. Badalamenti ◽  
G. D’Anna ◽  
C. Pipitone ◽  
...  
Keyword(s):  
Western Mediterranean ◽  
Tyrrhenian Sea ◽  
Southern Tyrrhenian Sea ◽  
Meso Scale
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