Planktonic stages of small pelagic fishes (Sardinella aurita and Engraulis encrasicolus) in the central Mediterranean Sea: The key role of physical forcings and implications for fisheries management

2018 ◽  
Vol 162 ◽  
pp. 25-39 ◽  
Author(s):  
Marco Torri ◽  
Raffaele Corrado ◽  
Federico Falcini ◽  
Angela Cuttitta ◽  
Luigi Palatella ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Fisheries Management ◽  
Central Mediterranean ◽  
Engraulis Encrasicolus ◽  
Pelagic Fishes ◽  
Central Mediterranean Sea ◽  
Sardinella Aurita

scholarly journals An additional record of the non-indigenous species (NIS) Seriola fasciata from the southern coast of Sicily (Central Mediterranean Sea)

2020 ◽  
Vol 61 (2) ◽  
pp. 223-230
Author(s):  
Michele Luca Geraci ◽  
Fabio Falsone ◽  
Danilo Scannella ◽  
Sergio Vitale
Keyword(s):  
Spatial Distribution ◽  
Mediterranean Sea ◽  
Indigenous Species ◽  
Southern Coast ◽  
Central Mediterranean ◽  
Seriola Dumerili ◽  
Central Mediterranean Sea ◽  
Greater Amberjack ◽  
Non Indigenous Species

An additional record of the non-indigenous species (NIS) Seriola fasciata from the southern coast of Sicily (Central Mediterranean Sea) is here described in this note. The catch record is the first in the area and confirms the key role of the area for NIS spreading. In addition, an updated map of its spatial distribution is provided as well as a discussion on the possible misidentification and competition with the native greater amberjack Seriola dumerili.

scholarly journals Insights into the role of deep-sea squids of the genus Histioteuthis (Histioteuthidae) in the life cycle of ascaridoid parasites in the Central Mediterranean Sea waters

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Marialetizia Palomba ◽  
Simonetta Mattiucci ◽  
Fabio Crocetta ◽  
David Osca ◽  
Mario Santoro
Keyword(s):  
Life Cycle ◽  
Sequence Analysis ◽  
Mediterranean Sea ◽  
Deep Sea ◽  
Central Mediterranean ◽  
Squid Species ◽  
Central Mediterranean Sea ◽  
The Mediterranean ◽  
Paratenic Hosts

AbstractAscaridoid nematodes comprise a wide range of heteroxenous parasites infecting top fish predators and marine mammals as definitive hosts, with crustaceans, squids, and fishes acting as intermediate/paratenic hosts. Limited data exist on the species and role of several intermediate and paratenic hosts in the life cycle of these parasites. In the aim of adding knowledge on the role of squid species in their life cycle, we have here investigated the larval ascaridoid nematodes collected from the deep-sea umbrella squid Histioteuthis bonnelli and the reverse jewel squid Histioteuthis reversa captured in the Central Mediterranean Sea (Tyrrhenian Sea). Morphological study and sequence analysis of the internal transcribed spacer (ITS) regions of the ribosomal DNA (rDNA) and the mitochondrial cytochrome c oxidase subunit 2 (mtDNA cox2) gene locus revealed the occurrence of Anisakis physeteris and of an unidentified species of the genus Lappetascaris. Sequence analysis revealed that specimens of Lappetascaris from both squid species matched at 100% sequences previously deposited in GenBank from larval ascaridoids collected in octopuses of the genus Eledone of the Mediterranean Sea. The Bayesian inference tree topology obtained from the analysis of the fragments amplified showed that Lappetascaris specimens were included in a major clade comprising Hysterothylacium species collected in fishes of the families Xiphiidae and Istiophoridae. As regards the site of infection in the squid host species, A. physeteris larvae predominated (60.7%) in the gonads, while those of Lappetascaris (76.3%) were found infecting the mantle musculature. The overall high values of parasitic load suggest both squid species as transmitting hosts of third stage larvae of Lappetascaris to top predator fishes, as well as the umbrella squid as an intermediate/paratenic host in the life cycle of A. physeteris in the Mediterranean Sea.

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