scholarly journals On the maximum length for Sardinella aurita (Osteichthyes: Clupeidae) from the Mediterranean Sea

2021 ◽  
Vol 6 (3) ◽  
pp. 29-34
Author(s):  
L. Bensahla-Talet ◽  
A. Bensahla-Talet
Keyword(s):  
Mediterranean Sea ◽  
Maximum Length ◽  
Purse Seine ◽  
Total Length ◽  
Sardinella Aurita ◽  
The Mediterranean

Two specimens of round sardinella, Sardinella aurita Valenciennes, 1847, with a total length of 39.1 and 36.6 cm and a weight of 359.01 and 293.48 g, respectively, were caught by a purse seine net in Bouzedjar Bay, Algeria, on 8 August, 2019. These sizes of both specimens are the maximum recorded for this species in the Mediterranean Sea.

First record of Sphoeroides spengleri (Osteichthyes: Tetraodontidae) in the Mediterranean Sea

2004 ◽  
Vol 84 (5) ◽  
pp. 1089-1090 ◽  
Author(s):  
J.A. Reina-Hervás ◽  
J.E. García Raso ◽  
M.E. Manjón-Cabeza
Keyword(s):  
Alien Species ◽  
Mediterranean Sea ◽  
First Record ◽  
Western Mediterranean ◽  
Alboran Sea ◽  
Total Length ◽  
The Mediterranean ◽  
Alborán Sea

The capture of a specimen of Sphoeroides spengleri (Osteichthyes: Tetraodontidae), 17 December 2000 and 29·7 mm total length, from the Málaga coast (Alborán Sea, western Mediterranean) represents the first record of a new alien species for Mediterranean waters.

On a saddled snake eel Pisodonophis semicinctus (Osteichthyes: Ophichthidae) trawled in the Strait of Sicily (Mediterranean Sea)

2000 ◽  
Vol 80 (5) ◽  
pp. 951-952 ◽  
Author(s):  
Sergio Ragonese ◽  
Giovan Battista Giusto
Keyword(s):  
Body Weight ◽  
Mediterranean Sea ◽  
Bottom Trawl ◽  
Northern Coast ◽  
Rare Finding ◽  
Strait Of Sicily ◽  
Total Length ◽  
The Mediterranean

The occurrence in the Strait of Sicily of the saddled snake eel, Pisodonophis semicinctus (Osteichthyes: Ophichthidae), a rare finding for the Mediterranean Sea, is confirmed on the basis of one specimen caught off the northern coast of Tunisia in 1991. The specimen, 800 mm in total length and 457 g in body weight (preserved condition), was captured during a commercial bottom trawl hauled at 30 m next to Cape Bon (north of Tunisia). This represents the second and fourth documented record of this Atlantic intruder within the Strait of Sicily and the Mediterranean Sea, respectively.

scholarly journals Distribution, abundance and biological features of anglerfish (Lophius piscatoirus and Lophhius budegassa) (Osteichthyes: Lphiiformes) in the Mediterranean Sea

2002 ◽  
Vol 66 (S2) ◽  
pp. 55 ◽  
Author(s):  
Nicola Ungaro ◽  
Giovanni Marano ◽  
Roberto Auteri ◽  
Alessandro Voliani ◽  
Enric Massutí ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Sexual Maturity ◽  
Biological Features ◽  
Total Length ◽  
The Mediterranean ◽  
Trawl Surveys

The distribution and biological features of anglerfish (Lophius piscatorius and L. budegassa) in the Mediterranean Sea were analysed from trawl surveys data (MEDITS project, years 1994-1999). The above-mentioned species were widely distributed in the Mediterranean, but differences in abundance were found according to geographic sectors and depths. Most of the collected specimens belonged to the first length cohorts and length distributions also differed at macro-area levels. Mean sizes at female sexual maturity were estimated at 68.5 cm and 66.2 cm total length, respectively for L. piscatorius and L. budegassa.

First record of the marbled spinefoot Siganus rivulatus (Pisces: Siganidae) in the Adriatic Sea

2004 ◽  
Vol 84 (5) ◽  
pp. 1087-1088 ◽  
Author(s):  
J. Dulĉić ◽  
A. Pallaoro
Keyword(s):  
Mediterranean Sea ◽  
Adriatic Sea ◽  
First Record ◽  
Beach Seine ◽  
Total Length ◽  
The Mediterranean ◽  
Siganus Rivulatus ◽  
First Time

Lessepsian migrant Siganus rivulatus is reported for the first time from the Adriatic Sea, substantially further north than its usual area of occurrence in the Mediterranean Sea. Two specimens (111 mm total length [TL] and 149 mm TL) were captured by beach seine on 5 October 2002 off islet Bobara, near Cavtat (southern Adriatic). Morphometric and meristic characteristics of the specimens are provided. The possible explanations of this occurrence are discussed.

scholarly journals Indices of bluefin tuna (Thunnus thynnus thynnus) abundance derived from sale records of French purse seine catches in the Mediterranean sea

1997 ◽  
Vol 10 (6) ◽  
pp. 329-342 ◽  
Author(s):  
Marc Labelle ◽  
Thierry Hoch ◽  
Bernard Liorzou ◽  
Jean-Louis Bigot
Keyword(s):  
Mediterranean Sea ◽  
Bluefin Tuna ◽  
Purse Seine ◽  
Thunnus Thynnus ◽  
The Mediterranean

scholarly journals Parasitic fauna of Sardinella aurita Valenciennes, 1847 from Algerian coast

2020 ◽  
Vol 30 (2) ◽  
pp. 101--108
Author(s):  
Souhila Ramdani ◽  
Jean-Paul Trilles ◽  
Zouhir Ramdane
Keyword(s):  
Mediterranean Sea ◽  
Parasite Species ◽  
Eastern Coast ◽  
Dominant Group ◽  
Host Fish ◽  
Parasitic Fauna ◽  
Microsporidian Species ◽  
Algerian Coast ◽  
Sardinella Aurita ◽  
The Mediterranean

The parasitic fauna of Sardinella aurita Valenciennes, 1847 from the Gulf of Bejaia (eastern coast of Algeria) was studied. The parasites collected from 400 host fish specimens, comprised 10 taxa including 6 species of Digenea, 1 species of Copepoda, 1 species of Nematoda, 1 larva of Cestoda and an unidentified Microsporidian species. The Nematoda Hysterothylacium sp. and the Copepoda Clavellisa emarginata (Krøyer, 1873) are newly reported for S. aurita. The Digenean parasites were numerous, diverse and constituted the most dominant group (P = 33.63%). The checklist of all known parasite species collected from S. aurita in the Mediterranean Sea includes 13 species, among which eight are Digeneans.

scholarly journals A new maximum length of the spotted weever, Trachinus araneus Cuvier, 1829 (Perciformes: Trachinidae) from Western Mediterranean (Oran Bay)

2020 ◽  
Vol 61 (2) ◽  
pp. 211-216
Author(s):  
Lotfi Bensahla-Talet ◽  
Ahmed Bensahla-Talet
Keyword(s):  
Mediterranean Basin ◽  
New Record ◽  
Western Mediterranean ◽  
Maximum Length ◽  
Total Length ◽  
Algerian Coast ◽  
The Mediterranean ◽  
The Mediterranean Basin

On the 29th of October 2018, one specimen of the spotted weever, Trachinus araneus measuring 47.3 cm in total length and weighting 968 g was captured by trammel net operating in Oran Bay (Kristel fishery) Western Algerian coast at 100 m depth. Up to date, this length is a new record of maximum length reached for this trachinid in the Mediterranean basin.

scholarly journals New records of two carangid species from the south-east coast of Sicily (Ionian Sea) and considerations about their presence and abundance

2018 ◽  
Vol 59 (2) ◽  
pp. 225-230 ◽  
Author(s):  
Francesco Tiralongo ◽  
Daniele Tibullo ◽  
Giuseppina Messina ◽  
Bianca Maria Lombardo
Keyword(s):  
Mediterranean Sea ◽  
Rare Species ◽  
East Coast ◽  
New Records ◽  
Common Species ◽  
Purse Seine ◽  
Published Data ◽  
Ionian Sea ◽  
The South ◽  
The Mediterranean

New records of Pseudocaranx dentex (Bloch & Schneider, 1801) and Seriola fasciata (Bloch, 1793) are reported from the Mediterranean Sea. During the period 2013-2017, we have collected several records of both species from the south-east coast of Sicily (Ionian Sea). On the basis of our and published data, we can consider S. fasciata as a relatively common species in the area, commonly caught with purse seine around FADs in summer and autumn; while, P. dentex remains basically a rare species, occasionally caught with trammel nets or gillnets. This work represents the first well-documented records of both carangid species in the south-east coast of Sicily.

scholarly journals Twenty-five-year longevity of European hake (Merluccius merluccius) from novel use of bomb radiocarbon dating in the Mediterranean Sea

2016 ◽  
Vol 67 (7) ◽  
pp. 1077 ◽  
Author(s):  
Sergio Vitale ◽  
Allen H. Andrews ◽  
Pietro Rizzo ◽  
Salvatore Gancitano ◽  
Fabio Fiorentino
Keyword(s):  
Mediterranean Sea ◽  
14C Dating ◽  
Merluccius Merluccius ◽  
Total Length ◽  
Bomb Radiocarbon ◽  
The Mediterranean ◽  
First Time ◽  
Slow Growing ◽  
European Hake ◽  
Age Reading

The high variability of growth and longevity estimates for European hake (Merluccius merluccius) reflects the existence of two opposing hypotheses on growth rates that differ by a factor of 2: (1) a fast-growing hypothesis (FGH) with a maximum age near 15 years; and (2) a slow-growing hypothesis (SGH) with a maximum age near 30 years. A recently established regional radiocarbon (14C) reference led to a first-time application of bomb 14C dating in the Mediterranean Sea to three of the largest-sized and potentially oldest-catch female European hake. Because age reading of otoliths is very subjective and poorly defined, these fish were aged blind with bomb radiocarbon (14C) dating as an independent estimate of validated age. The validated ages were compared with the theoretical maximum ages from the most reliable FGH and SGH von Bertalanffy growth functions. Among the three bomb 14C ages, the most diagnostic length-at-age was an alignment with the bomb 14C rise period for two of the three fish, providing validated ages of 22 years (74.5-cm total length) and 25 years (88-cm total length). The results provide estimates of length-at-age that are in agreement with the SGH and cannot be accounted for by the FGH.

scholarly journals Modelling spatio-temporal patterns of fish community size structure across the northern Mediterranean Sea: an analysis combining MEDITS survey data with environmental and anthropogenic drivers

2020 ◽  
Vol 83 (S1) ◽  
pp. 141
Author(s):  
Isabella Bitetto ◽  
Giovanni Romagnoni ◽  
Angeliki Adamidou ◽  
Gregoire Certain ◽  
Manfredi Di Lorenzo ◽  
...  
Keyword(s):  
Mediterranean Sea ◽  
Fish Community ◽  
Size Structure ◽  
Anthropogenic Impacts ◽  
Maximum Length ◽  
Dynamic Factor ◽  
Central Mediterranean ◽  
Commercial Fish ◽  
The Mediterranean ◽  
Typical Length

The state of marine systems subject to natural or anthropogenic impacts can be generally summarized by suites of ecological indicators carefully selected to avoid redundancy. Length-based indicators capture the status of fish community structure, fulfilling the Marine Strategy Framework Directive (MSFD) requirement for Descriptor 3 (status of commercial fish species). Although the MSFD recommends the development of regional indicators, a comparison among alternative length-based indicators is so far missing for the Mediterranean Sea. Using principal component analysis and dynamic factor analysis, we identified the most effective subset of length-based indicators, whether or not based on maximum length. Indicator trends and time series of fishing effort and environmental variables are also compared in order to highlight the individual and combined capability of indicators to track system changes across geographical sub-areas. Two indicators, typical length and mean maximum length, constitute the smallest set of non-redundant indicators, capturing together 87.45% of variability. Only in combination can these indicators disentangle changes in the fish community composition from modifications of size structure. Our study supports the inclusion of typical length among the regional MSFD Descriptor 3 indicators for the Mediterranean Sea. Finally, we show dissimilarity between the western and eastern-central Mediterranean, suggesting that there are sub-regional differences in stressors and community responses.

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