Deep Water Occurrence of Penaeus Kerathurus (Forskål, 1775) (Decapoda, Penaeidae) in the Strait of Sicily (Central Mediterranean Sea)

Abstract Garofalo, G., Ceriola, L., Gristina, M., Fiorentino, F., and Pace, R. 2010. Nurseries, spawning grounds and recruitment of Octopus vulgaris in the Strait of Sicily, central Mediterranean Sea. – ICES Journal of Marine Science, 67: 1363–1371. The presence of nursery and spawning grounds and the relationship between sea surface temperature (SST) and the abundance of juvenile O. vulgaris in the Strait of Sicily, central Mediterranean, are investigated using fishery-independent data (trawl surveys, 1994–2008). Annual distributions were generated for mature animals and juveniles for spring/summer (the peak spawning season) and autumn (peak recruitment) using an inverse distance weighted deterministic interpolation. Based on the persistence of abundant recruits and mature animals, respectively, nursery and spawning grounds were identified. The correlation between annual recruitment and SST during hatching and recruitment was also investigated. Concentrations of juveniles (nurseries) were located off the southwest coast of Sicily and in the central Strait of Sicily, including south of Lampedusa on the African shelf, but just one consistent concentration of mature animals (spawning grounds) was found in the northwestern part of the Strait. There was a significant positive correlation between recruitment and SST. Results are discussed in the light of environmental parameters, and a hypothesis on possible stock units in the area was developed. The direct and indirect effects of SST variation on the recruitment process were also examined.

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Discard composition associated with the deep water rose shrimp fisheries (Parapenaeus longirostris, Lucas 1846) in the south-central Mediterranean Sea

Mediterranean Marine Science ◽

10.12681/mms.1787 ◽

2017 ◽

Vol 18 (1) ◽

pp. 53 ◽

Cited By ~ 17

Author(s):

G. MILISENDA ◽

S. VITALE ◽

D. MASSI ◽

M. ENEA ◽

V. GANCITANO ◽

...

Keyword(s):

Mediterranean Sea ◽

Deep Water ◽

Fishing Ground ◽

P Value ◽

Total Catch ◽

The South ◽

Central Mediterranean ◽

South Central ◽

Central Mediterranean Sea ◽

Shrimp Fisheries

Discarding in fisheries is believed to be a waste of natural resources, as it is the part of the total catch brought on board but then returned to the sea dead or alive for any reason. This study aims to advance knowledge of the discards associated with the deep water rose shrimp fisheries in the south-central Mediterranean Sea. We address this issue by examining the data collected within the module of commercial catch monitoring (Campbiol) of European data collection framework (DCF) between January 2009 and December 2013. Multivariate data analysis and the generalized additive model (GAMs) were used to assess the spatio-temporal composition of the discard and factors influencing its distribution. Overall, discard represented 32.9±15.4% of the total catch. Multiple analysis of variance highlighted the significant effect on discard assemblage only for the factor of depth (p-value <0.05). In general, bony fish were the most discarded organisms (23.5±14.4%). Cartilaginous fish, crustaceans and other invertebrates represented approximately 13% of the total catch. The fraction of discard in the catch presented significant variation regarding the years, depth and fishing ground. Our results showed that most of the discards in the deep water rose shrimp (DPS) fisheries are due to species that have a minimum legal size (Hake, DPS, Trachurus spp.), and are consequently subjected to the discard ban (art. 15 of the reg. EU 1380/2013). To avoid the landing of discards, specific measures aimed to minimize the unwanted catches of undersized species should be implemented.

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A new record of a great white shark, Carcharodon carcharias(Chondrichthyes: Lamnidae) in the Strait of Sicily, Central Mediterranean Sea

Acta Adriatica ◽

10.32582/aa.61.2.13 ◽

2020 ◽

Vol 61 (2) ◽

pp. 231-238

Author(s):

Danilo Scannella ◽

Sergio Vitale ◽

Federico Di Maio ◽

Fabrizio Serena ◽

Bruno Zava ◽

...

Keyword(s):

Mediterranean Sea ◽

White Shark ◽

Central Mediterranean ◽

Carcharodon Carcharias ◽

Strait Of Sicily ◽

Male Individual ◽

Great White Shark ◽

Central Mediterranean Sea ◽

By Catch ◽

Available Information

In November 2015 an immature male individual of great white shark, Carcharodon carcharias (Linnaeus 1758), was caught as by-catch by a bottom trawler in the Strait of Sicily, in the Central Mediterranean Sea. The shark, reaching 266 cm in length and weighing 290 Kg, was identified and measured by means of a video provided by fishers. This record is discussed considering the available information on the presence of the great white shark in the area and confirms the importance of the Strait of Sicily for the conservation of this vulnerable species.

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