scholarly journals The presence of Tetraodontidae species in the Central Mediterranean

2017 ◽  
Vol 58 (2) ◽  
pp. 325-336 ◽  
Author(s):  
Pierluigi Carbonara ◽  
Maria Teresa Spedicato ◽  
Nicoletta Milone ◽  
Guliem Kroqi ◽  
Zdravko Ikica ◽  
...  
Keyword(s):  
Adriatic Sea ◽  
Stomach Contents ◽  
First Record ◽  
The South ◽  
Central Mediterranean ◽  
Male And Female ◽  
Stomach Contents Analysis ◽  
Post Spawning ◽  
Lagocephalus Sceleratus ◽  
Established Population

This paper presents the first record of the Lessepsian migrant fish Lagocephalus sceleratus (silver-cheeked toadfish) on the Italian side of the south Adriatic Sea. In addition, four specimens of Sphoeroides pachygaster (blunthead puffer) were analysed. Meristic and morphometric data of the silver-cheeked toadfish and blunthead puffer are in accordance with data from the Mediterranean. The specimen of silver-cheeked toadfish was a female with gonad in resting stage and the specimens of blunthead puffer were adults (male and female) with gonads in maturing, mature/spawner and post-spawning stage. The stomach contents of the specimen of silver-cheeked toadfish were composed by Mollusca Opistobranchia and Crustacea Brachyura. Stomach contents analysis of S. pachygaster confirmed that Mollusca are the preferred prey for this species. However, the presence of Crustacea (shrimps, crabs) and fish in the stomachs indicates that the blunthead puffer has a broad and variable diet in the south Adriatic Sea. The present study suggests the presence of an established population of blunthead puffer on the continental shelf of the southeast Adriatic Sea.

Six Years from First Record to Population Establishment: The Case of the Blue Crab, Callinectes Sapidus Rathbun, 1896 (Brachyura, Portunidae) in the Neretva River Delta (South-Eastern Adriatic Sea, Croatia)

Crustaceana ◽  
2011 ◽  
Vol 84 (10) ◽  
pp. 1211-1220 ◽  
Keyword(s):  
Adriatic Sea ◽  
Callinectes Sapidus ◽  
Carapace Width ◽  
First Record ◽  
Frequency Distributions ◽  
Age Cohorts ◽  
South Eastern ◽  
Adriatic Coast ◽  
The One ◽  
Established Population

AbstractThe data presented in this paper are based on the observation of 52 individuals of Callinectes sapidus Rathbun, 1896, collected in August and September 2010 by local fishermen using gillnets and traps in the area of the delta of the river Neretva (Croatian coast, south-eastern Adriatic Sea). Carapace width (CW) and carapace length (CL) frequency distributions indicate 3 age cohorts (modes) (CL: 7.2 cm, 8.4 cm, 9.0 cm; CW: 12.2 cm, 14.9 cm, 16.7 cm). The carapace width (CW)-to-weight (W) relationship was calculated (for both sexes) as W = 0.816CW2.281 (r2 = 0.785). The current substantial records, the occurrence of ovigerous females and juveniles (observations by fishermen through visual census), as well as the fact that the species was regularly caught in the estuarine area, together constitute evidence of an established population of this species in the region investigated. In future, continuous monitoring of the C. sapidus population, the dispersal of the species in areas adjacent to the one now investigated, as well as all along the eastern Adriatic coast, will be necessary.

scholarly journals Paleohydrology reconstruction and Holocene climate variability in the South Adriatic Sea

2012 ◽  
Vol 8 (5) ◽  
pp. 4357-4399 ◽  
Author(s):  
G. Siani ◽  
M. Magny ◽  
M. Paterne ◽  
M. Debret ◽  
M. Fontugne
Keyword(s):  
Climate Variability ◽  
Adriatic Sea ◽  
Short Interval ◽  
Sea Surface ◽  
The South ◽  
Short Term ◽  
Central Mediterranean ◽  
Middle Holocene ◽  
The North ◽  
Holocene Period

Abstract. Holocene paleohydrology reconstruction was derived combining planktic and benthic stable oxygen and carbon isotopes, sea surface temperatures (SSTs) and oxygen isotope composition of seawater (δ18Ow) from a high sedimentation core collected in the south Adriatic sea (SAS). Chronology of core is based on 10 AMS 14C measures on planktic foraminifera and tephra markers. Results reveal two contrasted paleohydrological periods that reflect (i) a marked lowering of δ 18Ow/salinity during the early to middle Holocene (11.5 ka to 6.3 ka), including the two-steps sapropel S1 deposition, followed during the middle to upper Holocene by (ii) a prevailed period of increased salinity and enhanced arid conditions in the south Adriatic basin. Superimposed on these trends, short-term centennial-scale hydrological events punctuated the Holocene period in the SAS. During the Early to Middle Holocene, a short-term SST cooling together with a prominent δ 18Ow/salinity lowering, more pronounced than during the sapropel S1 phase, delineates the sapropel S1 interruption. This short interval, coeval to the 8.2 ka event, is also distinguished by a resumption of deep-water convection in the SAS as indicated by stable isotope reconstruction on benthic forminifera. After 6 ka, centennial-scale δ18Ow and G. bulloides δ13C lowering, mostly centered between 3 to 0.6 ka, reflect short term hydrological changes related to a more intensive Po river runoff. These short-term events, even of lesser amplitude compared to the early to middle Holocene period, may have induced a lowering of sea surface density and consequently reduced and/or inhibited the formation of deep bottom waters in the SAS. Comparison of the emerging centennial to millennial-scale hydrological record with previous climatic records from the central Mediterranean area and north of the Alps revealed possible synchronicities (within the radiocarbon-dating uncertainty) between phases of lower salinity in SAS and periods of wetter climatic conditions around the north-central Adriatic Sea. Finally, wavelet analyses provide new clues about the potential origin of climate variability in the SAS confirming the evidence for a mid-Holocene transition in the Central Mediterranean climate and the dominance of a ~ 1700 yr periodicity after 6 ka that reflects a plausible connection with the North Atlantic climate system.

scholarly journals Redescription of Apomyelois cognata (Staudinger, 1871) (Lepidoptera, Pyralidae, Phycitinae) with first record from the South Urals

2022 ◽  
Vol 45 ◽  
pp. 1-7
Author(s):  
Tatyana A. Trofimova ◽  
Jan Šumpich ◽  
Yuriy I. Budashkin
Keyword(s):  
New Record ◽  
First Record ◽  
South Urals ◽  
The South ◽  
Species Identity ◽  
Lower Volga Region ◽  
Male And Female ◽  
Type Series ◽  
Lower Volga ◽  
Lepidoptera Pyralidae

Until recently, Apomyelois cognata (Staudinger, 1871) was known only from the type series collected 150 years ago in the Lower Volga region, as well as old records from Iran and Cyprus (the latter unconfirmed). In 2011 and 2020, more specimens of this little-known species were collected in the South Urals (Russia), presenting a new record for the area. The species identity was confirmed via examination of syntypes preserved in the Museum für Naturkunde, Berlin. A lectotype designation for the species is made and a detailed redescription with illustrations of male and female genitalia is given.

scholarly journals Growth and Age Validation of the Thornback Ray (Raja clavata Linnaeus, 1758) in the South Adriatic Sea (Central Mediterranean)

2020 ◽  
Vol 7 ◽  
Author(s):  
Pierluigi Carbonara ◽  
Andrea Bellodi ◽  
Michele Palmisano ◽  
Antonello Mulas ◽  
Cristina Porcu ◽  
...  
Keyword(s):  
Age Estimation ◽  
Adriatic Sea ◽  
Seasonal Pattern ◽  
Estimation Method ◽  
Logistic Models ◽  
Age And Growth ◽  
Age Validation ◽  
The South ◽  
Central Mediterranean ◽  
Raja Clavata

Raja clavata is the most widespread and landed skate species in the Mediterranean Basin. Despite its diffusion and economic importance, several aspects of its life history, such as age and growth, are poorly understood. This study evaluated the species’ growth in the South Adriatic Sea (Central Mediterranean Sea) and for the first time attempted an age validation through a tagging experiment. Thin sectioning of vertebral centra proved to be a more accurate preparation method in terms of age estimation precision and reproducibility than whole vertebral centrum staining (cobalt nitrate and ammonium sulfide technique). Marginal analysis showed a clear seasonal pattern, confirming the hypothesis of a single annulus deposition per year. A total of 291 vertebral centra were sampled and used for age estimation purposes. The oldest female was estimated to be 12 years old [total length (TL) = 89 cm], while the oldest male was aged 8 years (TL = 79.9 cm). Females were also found to be characterized by a slightly wider longevity range (ωL = 11.5, ωU = 16.8 years) than males (ωL = 7.8, ωU = 11.2 years). The von Bertalanffy growth curve fit the age and length data more accurately than the Gompertz and logistic models. Eighty-three thornback rays were tagged and released, of which two were recaptured. In both recaptured specimens, oxytetracycline marks were clearly visible. The band deposition after oxytetracycline injection and growth during the freedom period (about 1 year) were consistent with the age estimation method and criteria used and with the obtained growth results. Thus, the analysis of the vertebral centra extracted from the two recaptured specimens confirmed the hypothesis of the deposition of a single annulus per year and in general the age estimation criteria used in this study.

scholarly journals First record of the Northern brown shrimp, Farfantepenaeus aztecus (Ives, 1891) (Crustacea: Decapoda: Penaeidae) in the South Adriatic Sea, Montenegro

2013 ◽  
Vol 15 (1) ◽  
pp. 165 ◽  
Author(s):  
O. MARKOVIĆ ◽  
M. GÖKOĞLU ◽  
S. PETOVIĆ ◽  
M. MANDIĆ
Keyword(s):  
Alien Species ◽  
Adult Female ◽  
Adriatic Sea ◽  
First Record ◽  
Brown Shrimp ◽  
Female Specimen ◽  
The South ◽  
Western Atlantic ◽  
Farfantepenaeus Aztecus

A single adult female specimen of the Northern brown shrimp, Farfantepenaeus aztecus, a species native to the western Atlantic coasts, was caught in Boka kotorska bay (southern Adriatic Sea) on 19 September 2013. This is the first record of this alien species in the Adriatic Sea.

First record of Idas simpsoni (Mollusca: Bivalvia: Mytilidae) in the Adriatic Sea

2005 ◽  
Vol 85 (4) ◽  
pp. 977-978 ◽  
Author(s):  
J. Bolotin ◽  
M. Hrs-Brenko ◽  
P. Tutman ◽  
N. Glavić ◽  
V. Kožul ◽  
...  
Keyword(s):  
Adriatic Sea ◽  
First Record ◽  
Bivalve Mollusc ◽  
The South ◽  
Balaenoptera Physalus ◽  
Fin Whale ◽  
First Finding

More than 127 specimens of the bivalve mollusc Idas simpsoni were collected from the skull of a fin whale Balaenoptera physalus. The skull was trawled up from a depth of 430 m near Mljet Island in the south Adriatic Sea. This is the first finding of I. simpsoni in the Adriatic Sea.

First record of three Bivalvia species: Thyasira succisa, Lyonsia norwegica and Poromya granulata in the Adriatic Sea (Central Mediterranean)

2015 ◽  
Vol 8 ◽  
Author(s):  
Pierluigi Strafella ◽  
Luca Montagnini ◽  
Elisa Punzo ◽  
Angela Santelli ◽  
Clara Cuicchi ◽  
...  
Keyword(s):  
Adriatic Sea ◽  
First Record ◽  
Depth Range ◽  
Central Mediterranean ◽  
First Time

Three species of bivalves,Thyasira succisa,Lyonsia norwegicaandPoromya granulate, were recorded for the first time in the Adriatic Sea during surveys conducted from 2010 to 2012 on offshore relict sand bottoms at a depth range of 45–80 m.

Sign in / Sign up

Export Citation Format

Share Document