The Parotoplana jondelii species-group (Platyhelminthes: Proseriata): a microturbellarian radiation in the Mediterranean

Seven new Parotoplana species (Proseriata: Otoplanidae) from the Mediterranean, belonging to the P. jondelii complex, are described. They are characterized by the presence of numerous (14-22) copulatory spines. These are characteristically broad, and arranged in a girdle around the distal portion of the ejaculatory duct. In most species, dorsal and ventral spines are distinctly different from the rest of the spines of the girdle. This morphology of the copulatory spines is apomorphic for the genus Parotoplana, and supports a close relationship among these species. The new species (P. axi sp. n., P. crassispina sp. n., P. carthagoensis sp. n., P. gracilispina sp. n., P. ichnusae sp. n., P. obtusispina sp. n., P. pulchrispina sp. n.) are distinguished by number and shape of the copulatory spines, and presence/ absence of bursal spines. Species of the P. jondelii complex are at present only known from their type localities, and, at most, from adjacent areas. Only P. crassispina n. sp. is known to present a wider distribution in north-western Mediterranean, although populations across the range appear morphologically differentiated. The restricted, non-overlapping ranges of most species of the complex are suggestive of allopatric speciation.

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A new species of Pista Malmgren, 1866 (Polychaeta, Terebellidae) from the north-western Mediterranean Sea

ZooKeys ◽

10.3897/zookeys.838.28634 ◽

2019 ◽

Vol 838 ◽

pp. 71-84

Author(s):

Céline Labrune ◽

Nicolas Lavesque ◽

Paulo Bonifácio ◽

Pat Hutchings

Keyword(s):

New Species ◽

Mediterranean Sea ◽

Anterior Part ◽

Posterior Part ◽

Western Mediterranean ◽

Single Pair ◽

The North ◽

Western Mediterranean Sea ◽

North Western ◽

A New Species

A new species of Terebellidae, Pistacolinisp. n., has been identified from the harbour of Banyuls-sur-Mer, north-western Mediterranean Sea. This new species was found in very high densities, exclusively in gravelly sand deposited manually, and was not found in the original source habitat of the gravel. This species is characterized by the colour of the ventral shields with pinkish anterior part and a blood red posterior part in live specimens, a pair of unequal-sized plumose branchiae inserted on segment II and anterior thoracic neuropodia with long-handled uncini. The presence of long-handled uncini even in the smallest specimens constitutes the major difference between Pistacolinisp. n. and other Pista species with a single pair of branchiae such as P.lornensis and P.bansei.

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Two new species of Diodontus (Hymenoptera: Pemphredonidae) from the western Mediterranean and their phylogenetic relationships

The Canadian Entomologist ◽

10.4039/tce.2019.46 ◽

2019 ◽

Vol 151 (5) ◽

pp. 558-583

Author(s):

Eduardas Budrys ◽

Anna Budrienė ◽

Svetlana Orlovskytė ◽

Villu Soon

Keyword(s):

New Species ◽

North Africa ◽

Mitochondrial Gene ◽

Species Group ◽

Western Mediterranean ◽

Evolutionary Divergence ◽

Protein Coding ◽

Variable Regions ◽

Rdna Genes ◽

Two New Species

AbstractTwo new species of Diodontus Curtis, 1834 (Hymenoptera: Pemphredonidae) are described. Diodontus polytylus Budrys new species is widespread in North Africa, from Libya and Chad to Morocco, as well as in southern Spain and Portugal. Diodontus guichardi Budrys new species was found in several localities in Morocco. The new species have small differences in their morphology; however, they can be easily separated using molecular characters. Comparison of 17 molecular markers has revealed that the highest evolutionary divergence is observed in mitochondrial gene ND6 and internal transcribed spacer ITS2. The variable regions of the nuclear rDNA genes 18S and 28S demonstrated the lowest evolutionary divergence; thus they were of the least use for species identification. The most coherent reconstruction of phylogeny, in comparison to other groups of markers, was obtained using exons of nuclear protein-coding genes. A provisional key to the species of D. minutus (Fabricius, 1793) species group of the Mediterranean Region is presented.

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Molecular and morphological characterisation of Xiphinema granatum n. sp. and Longidorus pisi Edward, Misra & Singh, 1964 (Dorylaimida: Longidoridae) from Iran

Nematology ◽

10.1163/156854112x638406 ◽

2012 ◽

Vol 14 (8) ◽

pp. 949-960 ◽

Cited By ~ 7

Author(s):

Majid Pedram ◽

Ebrahim Pourjam ◽

Juan E. Palomares-Rius ◽

Razieh Ghaemi ◽

Carolina Cantalapiedra-Navarrete ◽

...

Keyword(s):

New Species ◽

Species Group ◽

Rrna Gene ◽

28S Rrna ◽

Morphometric Data ◽

Molecular Analyses ◽

Morphological Characterisation ◽

28S Rrna Gene ◽

Close Relationship ◽

Female Genital

Xiphinema granatum n. sp. from pomegranate in Saveh, Markazi province, central Iran, is described and illustrated. The new species belongs to species group 8 of the genus Xiphinema sensu Loof & Luc, 1990. The new species is characterised by a body 3.5-4.1 mm long, 37-49 μm diam., odontostyle and odontophore 118-132 and 65-74 μm long, respectively, presence of sperm in the female genital tracts, uterus devoid of any Z-differentiation or spines, and abundant males with spicules 45-58 μm long. The polytomous identification codes of the new species are: A4, B4, C5a, D5, E56, F4, G23, H2, I3, J4, K2, L2. Beside morphological and morphometric data, molecular analyses of D2-D3 fragments of 28S rRNA gene placed the new species in close relationship with X. vuittenezi and X. italiae and some species belonging to Xiphinema morphospecies group 6, but clearly separated from X. index. In addition, an Iranian population of Longidorus pisi from the same locality is morphologically and molecularly characterised.

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Coastal climatology of the North-Western Mediterranean area for long-term and short-term risk assessment.

10.5194/egusphere-egu2020-19382 ◽

2020 ◽

Author(s):

Carlo Brandini ◽

Stefano Taddei ◽

Valentina Vannucchi ◽

Michele Bendoni ◽

Bartolomeo Doronzo ◽

...

Keyword(s):

Risk Assessment ◽

High Resolution ◽

Mediterranean Area ◽

Western Mediterranean ◽

Climate Trends ◽

Short Term ◽

The North ◽

The Mediterranean ◽

North Western

In this work we present the results obtained through a dynamic downscaling of the ERA5 reanalysis dataset (hindcast) of ECMWF, using high-resolution meteorological and wave models defined on unstructured computation grids along the Mediterranean coasts, with a particular focus on the North-Western Mediterranean area. Downscaling of the ERA5 meteorological data is obtained through the BOLAM and MOLOCH models (up to a resolution of 2.5 km) which force an unstructured WW3 model with a resolution of up to 500 m along the coast. Models were validated through available meteorological stations, wave buoy data and X-band wave radars, the latter for the purposes of wave spectra validation.On the one hand, this allowed, by extracting the time series of some attack parameters of the waves along the coast, and according to the type of coast (rocky coasts, sandy coasts, coastal structures etc.), to compute the return periods and to characterize the impact of any individual storm.&#160;On the other hand, it is possible to highlight some trends observed in the last 30 years, during which recent research is showing an increasing evidence &#160;of some changes in global circulation at regional to local scales. These changes also include effects of wind rotation, wave regimes, storm surges, wave-induced coastal currents and coastal morphodynamics. For example, in the North-Western Mediterranean extreme events belonging to cyclonic weather-types circulation with stronger S-SE components (like the storm of October 28-30th 2018 and many others), rather than events associated with perturbations of Atlantic origin and zonal circulation, are becoming more frequent. These long-term wind/wave climate trends can have consequences not only in the assessment of long-term risk due to main morphodynamic variations (ie. coastal erosion), but also in the short-term risk assessment.This work was funded by the EU MAREGOT project (2017-2020) and ECMWF Special Project spitbran &#160;&#8220;Evaluation of coastal climate trends in the Mediterranean area by means of high-resolution and multi-model downscaling of ERA5 reanalysis&#8221; (2018-2020).

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A new species of Buenia (Perciformes: Gobiidae) from the western Mediterranean slope bottoms, the redescription of Buenia jeffreysi and the first Balearic record of Buenia affinis

Zootaxa ◽

10.11646/zootaxa.4392.2.3 ◽

2018 ◽

Vol 4392 (2) ◽

pp. 267 ◽

Cited By ~ 4

Author(s):

MARCELO KOVAČIĆ ◽

FRANCESC ORDINES ◽

ULRICH K. SCHLIEWEN

Keyword(s):

New Species ◽

Cold Water ◽

First Record ◽

Morphological Characters ◽

Western Mediterranean ◽

Depth Range ◽

Morphometric Characters ◽

Dorsal Fin ◽

The Mediterranean ◽

Upper Slope

A new gobiid species, Buenia lombartei sp. nov. (Teleostei: Gobiidae) is described from the continental slope off the Balearic Islands, western Mediterranean. The Atlantic species Buenia jeffreysii (Günther, 1867) is redescribed and the first record of Buenia affinis Iljin, 1930 is reported for the islands. A key for the species of genus Buenia is provided. The new species can be distinguished from congeneric species by morphological characters: anterior oculoscapular canal semi-closed with pores σ, λ, κ, α, ρ and additional pores and open furrows; suborbital row c of 6 papillae; anal fin I/7-I/8; scales in lateral series 25-27; scales in transverse series 6; pectoral fin rays 18; the second spine of the first dorsal fin longest, backwards reaching to middle second dorsal fin in males when folded down; pelvic fin anterior membrane reduced to less than one sixth of spinous ray in midline depth; tongue well developed and bilobed and several morphometric characters. The new species is also characterized by its reduced colouration and unique depth range and occurrence on upper slope muddy bottoms. Contrary to this, only a small number of gobiid species in the Mediterranean reach beyond the circalittoral to the deep shelf, and just a few have records below the shelf break. Phylogenetic analysis of their mitochondrial COI sequence grouped the two specimens within the same clade as B. jeffreysii, but one apomorphic transversion diagnoses the B. lombartei subclade. A hypothesis about rapid speciation of B. lombartei as well as alternative hypotheses are discussed. During the Last Glacial Maximum, boreal fish species such as cold-water adapted gadids, now restricted to northwestern Europe, entered the Mediterranean. This may have also been the case of the boreal population of B. jeffreysii. At the end of the glacial period, increasingly warming Mediterranean waters might restricted B. jeffreysii to deeper coldwater mud habitats of the upper slope, where it finally adapted to bathyal conditions.

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Three new species of Iberian cheilostomate Bryozoa

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315409000496 ◽

2009 ◽

Vol 89 (7) ◽

pp. 1499-1506 ◽

Cited By ~ 4

Author(s):

Oscar Reverter-Gil ◽

Javier Souto ◽

Eugenio Fernández-Pulpeiro

Keyword(s):

New Species ◽

The Mediterranean ◽

Western Spain ◽

Three New Species ◽

North Western

Three new species of Iberian cheilostomate bryozoans are described from material held in our own collection as well as in the bryozoan collection in the Museo Nacional de Ciencias Naturales, Madrid. Chaperiopsis hirsuta sp. nov., from the Mediterranean, is the second species of this genus in European waters. Metroperiella gay sp. nov. and Schizoporella artabra sp. nov. are described from material collected in Galicia (north-western Spain).

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Austrolebias queguay (Cyprinodontiformes, Rivulidae), a new species of annual killifish endemic to the lower Uruguay river basin

Zoosystematics and Evolution ◽

10.3897/zse.94.29115 ◽

2018 ◽

Vol 94 (2) ◽

pp. 547-556 ◽

Cited By ~ 2

Author(s):

Wilson S. Serra ◽

Marcelo Loureiro

Keyword(s):

New Species ◽

River Basin ◽

Distal Portion ◽

The Body ◽

Annual Fish ◽

Pectoral Fins ◽

Bluish Green ◽

Close Relationship ◽

Uruguay River ◽

A New Species

In this article we describe a new species of the annual fish genusAustrolebiasfrom the lower Uruguay river basin. The fusion of the urogenital papilla to the first anal fin ray in males and the pigmentation pattern, indicates a close relationship with the clade formed byA.bellottii,A.melanoorus, andA.univentripinnis. The new species can be differentiated from those by the following combination of characters: presence of well-defined light bands contrasting with the sides of the body, the distal portion of the anal fin dark gray, pelvic fins dark bluish green and bases united at about 50–80% on their medial margins, pectoral fins with iridescent blue sub-marginal band, and general coloration of body bluish green. The new species can only be found in wetlands of the Queguay river, an area included in the Uruguayan protected areas system and represents so far the only annual fish species endemic to the lower Uruguay river basin.

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Oxygen budget of the north-western Mediterranean deep- convection region

Biogeosciences ◽

10.5194/bg-18-937-2021 ◽

2021 ◽

Vol 18 (3) ◽

pp. 937-960

Author(s):

Caroline Ulses ◽

Claude Estournel ◽

Marine Fourrier ◽

Laurent Coppola ◽

Fayçal Kessouri ◽

...

Keyword(s):

Dissolved Oxygen ◽

Mediterranean Sea ◽

Atmospheric Oxygen ◽

Deep Convection ◽

Western Mediterranean ◽

Biogeochemical Model ◽

The North ◽

Oxygen Budget ◽

The Mediterranean ◽

North Western

Abstract. The north-western Mediterranean deep convection plays a crucial role in the general circulation and biogeochemical cycles of the Mediterranean Sea. The DEWEX (DEnse Water EXperiment) project aimed to better understand this role through an intensive observation platform combined with a modelling framework. We developed a three-dimensional coupled physical and biogeochemical model to estimate the cycling and budget of dissolved oxygen in the entire north-western Mediterranean deep-convection area over the period September 2012 to September 2013. After showing that the simulated dissolved oxygen concentrations are in a good agreement with the in situ data collected from research cruises and Argo floats, we analyse the seasonal cycle of the air–sea oxygen exchanges, as well as physical and biogeochemical oxygen fluxes, and we estimate an annual oxygen budget. Our study indicates that the annual air-to-sea fluxes in the deep-convection area amounted to 20 molm-2yr-1. A total of 88 % of the annual uptake of atmospheric oxygen, i.e. 18 mol m−2, occurred during the intense vertical mixing period. The model shows that an amount of 27 mol m−2 of oxygen, injected at the sea surface and produced through photosynthesis, was transferred under the euphotic layer, mainly during deep convection. An amount of 20 mol m−2 of oxygen was then gradually exported in the aphotic layers to the south and west of the western basin, notably, through the spreading of dense waters recently formed. The decline in the deep-convection intensity in this region predicted by the end of the century in recent projections may have important consequences on the overall uptake of atmospheric oxygen in the Mediterranean Sea and on the oxygen exchanges with the Atlantic Ocean, which appear necessary to better quantify in the context of the expansion of low-oxygen zones.

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Nothobranchius nikiforovi, a new species of seasonal killifish from the lower Matandu drainage in south-eastern coastal Tanzania (Cyprinodontiformes: Nothobranchiidae)

Zootaxa ◽

10.11646/zootaxa.4950.1.5 ◽

2021 ◽

Vol 4950 (1) ◽

pp. 103-122

Author(s):

BÉLA NAGY ◽

BRIAN R. WATTERS ◽

ALEXANDRA A. RASPOPOVA

Keyword(s):

New Species ◽

Phylogenetic Analyses ◽

Distal Portion ◽

Species Group ◽

Colour Pattern ◽

Caudal Fin ◽

Light Blue ◽

South Eastern ◽

Median Fins ◽

A New Species

Nothobranchius nikiforovi, a new species known from seasonal habitats in the lower Matandu drainage in south-eastern coastal Tanzania is described. It is distinguished from all other congeners, except N. eggersi, by males presenting two colour phenotypes: the blue phenotype having a bright iridescent light blue to blue-green body, with narrow red-brown scale margins creating irregular reticulated pattern, forming chevron-shaped crossbars on the posteroventral portion of body and light blue median fins with red-brown dotted pattern; the red phenotype has a dark red head, light blue dorsal and anal fins proximally and medially, dark red distally, with dark red stripes parallel to the fin rays, and a plain dark red caudal fin. Nothobranchius nikiforovi differs from N. eggersi by male colour pattern, the blue phenotypes having median fins with dark grey distal portion, some of the rays of dorsal and anal fins with white tips (vs. median fins with distinct slender white distal band), and the caudal fin lacking a spotted pattern (vs. dots arranged into irregular curved stripes); the red phenotype with golden stripe between the nape and dorsal-fin origin (vs. light-blue stripe), the dorsal and anal fins with a plain red distal portion and lacking a light distal band (vs. with distinct narrow white distal band), the pelvic fin lacking a distal band (vs. with distinct slender light blue to white distal band), and some morphometric differences. Phylogenetic analyses also support the genetic distinction of the new species from its closest known relative, N. eggersi, and confirm its position in the N. guentheri species group within the Adiniops subgenus.

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Two new species of the marine water mite family Pontarachnidae (Acari: Hydrachnidia) from the Gulf of Antalya, Turkey

Zootaxa ◽

10.11646/zootaxa.4531.2.8 ◽

2018 ◽

Vol 4531 (2) ◽

pp. 271

Author(s):

FURKAN DURUCAN ◽

TAPAS CHATTERJEE ◽

VLADIMIR PEŠIĆ

Keyword(s):

New Species ◽

Mediterranean Sea ◽

Species Group ◽

Marine Water ◽

Water Mite ◽

Two New Species ◽

The Mediterranean ◽

Mite Family

Two new species of the marine water mite family Pontarachnidae, i.e., Litarachna enigmatica and L. antalyaensis are described from the Gulf of Antalya, Turkey. Litarachna enigmatica is unique in the postgenital sclerite having a pair of so-called wheel-like acetabula, a character so far found only in the females of Pontarachna. Litarachna antalyaensis is the second known species of the L. duboscqi—species group characterized by the absence of a ventral tubercle on P-2 and presence of a ventral tubercle on P-4, from the Mediterranean Sea. The new species can be separated from the widely distributed L. duboscqi in the glandularium-like structure posterior to the fourth coxal plates not fused with adjoining coxoglandularia 4.

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