Apicoporus haificum (Gymnodiniaceae), a new dinoflagellate species from sandy sediments of the Mediterranean Sea (Israel coast)

Phytotaxa ◽  
2019 ◽  
Vol 404 (7) ◽  
pp. 287
Author(s):  
МAXIM А. KRAKHMALNYI ◽  
ALEKSANDR F. KRAKHMALNYI
Keyword(s):  
Cell Surface ◽  
Light Microscopy ◽  
Mediterranean Sea ◽  
Cross Section ◽  
Distal Part ◽  
Eastern Coast ◽  
Anterior Portion ◽  
The Mediterranean ◽  
The Right ◽  
Sandy Sediments

A new dinoflagellate species (Dinophyceae, Gymnodiniales)—Apicoporus haificum Krachmalny sp. nov. was described on a basis of thorough light microscopy studies. The species was found in sandy sediments (water-filled spaces between sand grains) on the eastern coast of the Mediterranean Sea (HaCarmel beach, Haifa, Israel). Apicoporus haificum possesses the following features: cells elongated (with length exceeding width by 3.1–3.8 times), lanceolate in dorsoventral projection, roundish in cross-section with slight dorsoventral compression, asymmetrical, slightly curved to the right, with antapical depression. Epicone asymmetrical, somewhat umbonate, with a small hook-shaped protrusion on the apex. Cingulum displaced, descending by 1/3 cell’s length, its distal part almost parallel to the anterior portion of sulcus. Sulcus narrow, shallow, extends from the apex to the antapical depression, with apical groove. Cell surface covered with longitudinal striations that converge on the apex and on the antapical protrusion. Chloroplasts absent. Dimensions: 75.3±2.2 μm in length, 21.4±1.5 μm in width. Comparison of A. haificum to morphologically similar Apicoporus glaber and Amphidinium scissum is discussed.

scholarly journals The spatio-temporal distribution of lightning over Israel and the neighboring area and its relation to regional synoptic systems

2011 ◽  
Vol 11 (8) ◽  
pp. 2125-2135 ◽  
Author(s):  
S. Shalev ◽  
H. Saaroni ◽  
T. Izsak ◽  
Y. Yair ◽  
B. Ziv
Keyword(s):  
Spatial Distribution ◽  
Mediterranean Sea ◽  
Temporal Distribution ◽  
Lightning Activity ◽  
Eastern Coast ◽  
Synoptic Situation ◽  
Lightning Flash ◽  
The Mediterranean ◽  
Spatio Temporal ◽  
Neighboring Area

Abstract. The spatio-temporal distribution of lightning flashes over Israel and the neighboring area and its relation to the regional synoptic systems has been studied, based on data obtained from the Israel Lightning Location System (ILLS) operated by the Israel Electric Corporation (IEC). The system detects cloud-to-ground lightning discharges in a range of ~500 km around central Israel (32.5° N, 35° E). The study period was defined for annual activity from August through July, for 5 seasons in the period 2004–2010. The spatial distribution of lightning flash density indicates the highest concentration over the Mediterranean Sea, attributed to the contribution of moisture as well as sensible and latent heat fluxes from the sea surface. Other centers of high density appear along the coastal plain, orographic barriers, especially in northern Israel, and downwind from the metropolitan area of Tel Aviv, Israel. The intra-annual distribution shows an absence of lightning during the summer months (JJA) due to the persistent subsidence over the region. The vast majority of lightning activity occurs during 7 months, October to April. Although over 65 % of the rainfall in Israel is obtained during the winter months (DJF), only 35 % of lightning flashes occur in these months. October is the richest month, with 40 % of total annual flashes. This is attributed both to tropical intrusions, i.e., Red Sea Troughs (RST), which are characterized by intense static instability and convection, and to Cyprus Lows (CLs) arriving from the west. Based on daily study of the spatial distribution of lightning, three patterns have been defined; "land", "maritime" and "hybrid". CLs cause high flash density over the Mediterranean Sea, whereas some of the RST days are typified by flashes over land. The pattern defined "hybrid" is a combination of the other 2 patterns. On CL days, only the maritime pattern was noted, whereas in RST days all 3 patterns were found, including the maritime pattern. It is suggested that atmospheric processes associated with RST produce the land pattern. Hence, the occurrence of a maritime pattern in days identified as RST reflects an "apparent RST". The hybrid pattern was associated with an RST located east of Israel. This synoptic type produced the typical flash maximum over the land, but the upper-level trough together with the onshore winds it induced over the eastern coast of the Mediterranean resulted in lightning activity over the sea as well, similar to that of CLs. It is suggested that the spatial distribution patterns of lightning may better identify the synoptic system responsible, a CL, an "active RST" or an "apparent RST". The electrical activity thus serves as a "fingerprint" for the synoptic situation responsible for its generation.

Two new species of Mesacanthion Filipjev, 1927 (Nematoda: Enoplida) from the Mediterranean Sea

Nematology ◽  
2006 ◽  
Vol 8 (4) ◽  
pp. 533-538 ◽  
Author(s):  
Alexander Klerman ◽  
Vladimir Gagarin
Keyword(s):  
New Species ◽  
Mediterranean Sea ◽  
Female Body ◽  
Nematode Species ◽  
Male Tail ◽  
Two New Species ◽  
The Mediterranean ◽  
The Right

AbstractTwo new nematode species of the genus Mesacanthion, M. obscurum sp. n. and M. propinquum sp. n., both isolated from sediment in the Mediterranean Sea off the coast of Israel, are described and illustrated. Mesacanthion obscurum sp. n. is similar to M. diplechma and M. southerni, but differs from the first species by having a narrower labial region, shorter outer labial setae, shorter right spiculum, and shorter distance from supplement to cloacal aperture; and from the second species by a shorter female body, shorter outer labial setae, shorter distance from supplement to cloacal aperture, and the presence of a ventral protuberance on the male tail. Mesacanthion propinquum sp. n. resembles M. southerni and M. obscurum sp. n., but differs from the first species by having a shorter female body, less slender tail, narrower labial region, shorter outer labial setae, shorter distance from supplement to cloacal aperture, and absence of transverse striations on the right spicule; and from M. obscurum sp. n. by the shorter outer labial setae (10-15 vs 37-44 μm), shorter distance from supplement to cloacal aperture (28-31 vs 36-59 μm) and absence of transverse striations on the surface of the right spicule. A key is provided for those Mesacanthion species possessing anisomorphic and anisometric spicules.

scholarly journals First Record of the Lessepsian Migrant Smith's Cardinalfish Jaydia smithi Kotthaus, 1970 (Pisces: Apogonidae) from Syrian Marine Waters

2017 ◽  
Vol 30 (2) ◽  
pp. 45-49
Author(s):  
Firas A. Al-Shawy ◽  
Murhaf M. Lahlah ◽  
Chirine S. Hussein
Keyword(s):  
Mediterranean Sea ◽  
Marine Environment ◽  
Ballast Water ◽  
First Record ◽  
Eastern Coast ◽  
Marine Waters ◽  
Environment Changes ◽  
Lessepsian Species ◽  
The Mediterranean ◽  
First Time

Five individuals of Smith's cardinalfish Jaydia smithi were collected from Ibn-Hani area, Lattakia, Syria on the eastern coast of the Mediterranean Sea. Their morphometric and meristic characteristics are reported. There are several factors which assisted this specimen to reach this area of the Mediterranean; some of these factors might be the marine environment changes and the ballast water. This study reports that Smith's cardinalfish Jaydia smithi, a member of Lessepsian species was found in Syrian marine waters for the first time.

scholarly journals Non-indigenous macroalgal species in coralligenous habitats of the Marine Protected Area Isole Ciclopi (Sicily, Italy)

2021 ◽  
Vol 11 ◽  
pp. 31-44
Author(s):  
Luca Giuseppe Costanzo ◽  
Giuliana Marletta ◽  
Giuseppina Alongi
Keyword(s):  
Alien Species ◽  
Mediterranean Sea ◽  
Protected Area ◽  
Marine Protected Area ◽  
Eastern Mediterranean ◽  
Present Report ◽  
Eastern Coast ◽  
Remotely Operated Vehicle ◽  
High Coverage ◽  
The Mediterranean

Biological invasions are considered one of the main threats for biodiversity. In the last decades, more than 60 macroalgae have been introduced in the Mediterranean Sea, causing serious problems in coastal areas. Nevertheless, the impacts of alien macroalgae in deep subtidal systems have been poorly studied, especially in the coralligenous habitats of the eastern coast of Sicily (Italy). Therefore, within the framework of the programme “Progetto Operativo di Monitoraggio (P.O.M.)” of the EU Marine Strategy Framework Directive (MSFD), the aim of the present study was to gain knowledge on the alien macroalgae present in coralligenous habitats of the Marine Protected Area (MPA) Isole Ciclopi, along the Ionian coast of Sicily. By Remotely Operated Vehicle (ROV) videos and destructive samples analysed in the laboratory, five alien species were identified: Caulerpa cylindracea, Antithamnion amphigeneum, Asparagopsis armata, Bonnemaisonia hamifera, and Lophocladia lallemandii. Since A. amphigeneum was previously reported only in the western Mediterranean and Adriatic Sea, the present report represents the first record of this species in the eastern Mediterranean. The ROV surveys showed that the alien species do not have a high coverage and do not appear to be invasive in the coralligenous area of the MPA. Since ocean temperatures are predicted to increase as climate change continues and alien species are favoured by warming of the Mediterranean Sea, the risk of biotic homogenisation caused by the spread of alien species is realistic. Therefore, further studies are needed to assess the incidence and invasiveness of alien species in phytobenthic assemblages of coralligenous in the MPA.

The Bridge on the Strait of Messina: “Lowering” the Right of Innocent Passage?

2001 ◽  
Vol 50 (2) ◽  
pp. 411-419 ◽  
Author(s):  
Fabio Spadi
Keyword(s):  
Mediterranean Sea ◽  
Tyrrhenian Sea ◽  
Ionian Sea ◽  
The West ◽  
Minimum Depth ◽  
The Mediterranean ◽  
The Right

The Strait of Messina is a body of water in the Mediterranean Sea separating the island of Sicily to the west from mainland Italy to the east, linking the Lower Tyrrhenian Sea with the Ionian Sea. The strait is around 30 miles long and its width ranges from 13/4 miles (between Faro Point and the Rock of Scylla) to 10 miles (between Cape Alì and Cape Pellaro). At its northern end it reaches, at one point, a minimum depth of 70 metres.1

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.

Monitoring toxic microalgae Ostreopsis (dinoflagellate) species in coastal waters of the Mediterranean Sea using molecular PCR-based assay combined with light microscopy

2010 ◽  
Vol 60 (7) ◽  
pp. 1074-1084 ◽  
Author(s):  
Cecilia Battocchi ◽  
Cecilia Totti ◽  
Magda Vila ◽  
Mercedes Masó ◽  
Samuela Capellacci ◽  
...  
Keyword(s):  
Light Microscopy ◽  
Mediterranean Sea ◽  
Coastal Waters ◽  
The Mediterranean

scholarly journals A Taxonomic Survey of Female Oviducal Glands in Chondrichthyes: A Comparative Overview of Microanatomy in the Two Reproductive Modes

Animals ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2653
Author(s):  
Martina Francesca Marongiu ◽  
Cristina Porcu ◽  
Noemi Pascale ◽  
Andrea Bellodi ◽  
Alessandro Cau ◽  
...  
Keyword(s):  
Light Microscopy ◽  
Mediterranean Sea ◽  
Western Mediterranean ◽  
Sperm Storage ◽  
Yolk Sac ◽  
Anterior Portion ◽  
Western Mediterranean Sea ◽  
Terminal Zone ◽  
Fishing Impacts ◽  
First Time

Oviducal glands (OGs) are distinct expanded regions of the anterior portion of the oviduct, commonly found in chondrichthyans, which play a key role in the production of the egg in-vestments and in the female sperm storage (FSS). The FSS phenomenon has implications for understanding the reproductive ecology and management of exploited populations, but little information is available on its taxonomic extent. For the first time, mature OGs from three lecithotrophic oviparous and four yolk-sac viviparous species, all considered at risk from the fishing impacts in the central western Mediterranean Sea, were examined using light microscopy. The OG microanatomy, whose morphology is generally conserved in all species, shows differences within the two reproductive modalities. Oviparous species show a more developed baffle zone in respect to viviparous ones because of the production of different egg envelopes produced. Among oviparous species, Raja polystigma and Chimaera monstrosa show presence of sperm, but not sperm storage as observed, instead, in Galeus melastomus and in all the viviparous sharks, which preserve sperm inside of specialized structures in the terminal zone.

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