scholarly journals The first Report of The Parasitic Copepod Bomolochus unicirrus (Copepoda: Bomolochidae) From Turkey

Author(s):  
İbrahim Demirkale ◽  
Argun Akif Özak ◽  
Yetkin Sakarya

In this study, Bomolochus unicirrus Brian, 1902, a species of parasitic copepod belonging to the family Bomolochidae (Claus, 1875), was reported for the first time from the north-eastern Mediterranean waters off the Turkish coast. Parasites were collected from the gill filaments of the European barracuda, Sphyraena sphyraena(L.)captured by trawling in Iskenderun Bay, Turkey. The morphological features of B. unicirrus were Redescribed and illustrated based on the newly collected material. Key diagnostic characters and newly observed details in some structures are highlighted and supported by using scanning electron microscopy (SEM). Differences and simply overlooked details in previous descriptions of B. unicirrus, are discussed in detail. In addition, morphological comparisons between presently reported species and the other species of the genus Bomolochus Nordmann, 1832 were also presented.

2015 ◽  
Vol 8 ◽  
Author(s):  
Elif Eker-Develi

Nephroselmis pyriformis(N. Carter) Ettl is reported for the first time from the north-eastern Mediterranean Sea coast. The species was isolated from the samples collected on 21 September 2013. The morphology of live cells is described based on light microscopy. Photographic and video images of the species are also presented.


Author(s):  
Barbara Mikac ◽  
Federica Semprucci ◽  
Loretta Guidi ◽  
Massimo Ponti ◽  
Marco Abbiati ◽  
...  

Abstract In this research, we report the presence of two ciliate protozoans of the subclass Peritrichia, Cothurnia amphicteis and C. peloscolicis, as epibionts on the chaetae of scaled polychaetes Malmgrenia lilianae, M. andreapolis (fam. Polynoidae) and Sthenelais boa (fam. Sigalionidae), from the north Adriatic (Mediterranean Sea). Both ciliate species are herein found for the first time after their original description and are redescribed, based on light and scanning electron microscopy analyses. This is the first record of an association between ciliates and polychaetes of the family Sigalionidae. Our results suggest that these host–epibiont relationships might be highly specific. We also present the first review of epibiosis between polychaetes and peritrich ciliates, indicating that this relationship is more diverse than previously thought. Forty taxa of peritrich ciliates from 12 genera and seven families are recorded as epibionts on polychaetes, while 48 polychaete taxa are known as their hosts. The relationship can be considered ectocommensalism, where the ciliates have the advantages of increased food availability. This association might be a more widespread phenomenon than currently known, because it could be easily overlooked or misinterpreted. It, therefore, deserves careful attention and further investigation.


Author(s):  
Nuri Başusta ◽  
Sefa Ayhan Demirhan ◽  
Erdoğan Çiçek ◽  
Asiye Başusta ◽  
Tuncay Kuleli

Age and growth of the common guitarfish (Rhinobatos rhinobatos) were estimated from the north-eastern Mediterranean coast of Turkey. A total of 115 common guitarfish (66 females and 49 males) were sampled. Age determinations were carried out using vertebral sections. Alcian blue dying techniques were used to enhance the visibility of the band on vertebrae. The techniques have been used for the first time on elasmobranchs vertebrae successfully in this study. A total of 97 vertebrae of 115 were visible on the vertebral band in this study. Male and female common guitarfish ranged in age from 1 to 15 and 1 to 24 y respectively. Total length ranged from 42 to 147 cm for females and 39 to 124 cm for males.The relationships between total length (TL) and total weight (TW) were presented as TW = 0.0014*TL3.1672 (R2 = 0.98) for females, TW = 0.0012*TL3.1947 (R2 = 0.98) for males and TW = 0.0012*TL3.1915 (R2 = 0.98) for both sexes. The parameters for von Bertalanffy growth curves were estimated as Linf  = 137.70±9.38 cm, K = 0.159±0.047, to = −2.180 ± 0.90 for pooled data.


Biologia ◽  
2015 ◽  
Vol 70 (7) ◽  
Author(s):  
Simona Casavecchia ◽  
Nello Biscotti ◽  
Simone Pesaresi ◽  
Edoardo Biondi

AbstractThe revision of the Paliurus spina-christi dominated vegetation of Europe is presented here. The study area includes the north-eastern part of Iberian Peninsula and Provence to the west, and spreads through the Apennine Peninsula to the Balkan Peninsula and up to Eastern Mediterranean areas. The phytosociological releves of Paliurus spina-christi dominated vegetation found in the literature for these European territories were gathered together in a phytosociological table. Floristic analysis, cluster analysis, and indirect gradient analysis were performed to determine the similarities and differences between the different Paliurus spina-christi dominated communities and their correlations with the main bioclimatic indices described in the literature. The various analyses highlight the existence of nine different associations (one of which is described here for the first time) that are attributed to different syntaxonomic levels.In the conclusion, a syntaxonomical scheme is proposed that classifies the European vegetation of shrublands in the class Rhamno-Prunetea which includes the class Paliuretea. Currently, we recognized three orders within this class: Prunetalia spinosae for central and south-central Europe; Pyro spinosae-Rubetalia ulmifolii within the Temperate oceanic bioclimate of the sub-Mediterranean variant; Paliuretalia spinae-christi with a central Mediterranean and sub-Mediterranean distribution, that mainly occurs in the central-eastern Mediterranean (Southern Apennine Peninsula) and the Balkans.Finally, a part of the shrub vegetation dominated by Paliurus spina-christi is referred to the class Quercetea ilicis, the order Pistacio lentisci-Rhamnetalia alaterni, the alliance Oleo sylvestris-Ceratonion siliquae and the suballiance Oleo sylvestris- Paliurenion spinae-christi that refers to thermophilous shrub communities that require high edaphic humidity.


2005 ◽  
Vol 176 (6) ◽  
pp. 545-557 ◽  
Author(s):  
Jean-Christophe Dudicourt ◽  
Didier Neraudeau ◽  
Philippe Nicolleau ◽  
Luc Ceulemans ◽  
Frédéric Boutin

Abstract New investigations in the Pliocene deposits of Challans (Vendée) have allowed to collect more than 3000 marsupiate echinoids, remarkably preserved. So, apical systems, especially the marsupium of the breeding temnopleurids T. (V.) bigoti and C. bardini, have been described and figured for the first time with complete specimens. Two new marsupiate species have been described: Arbacina hugueti nov. sp., third marsupiate species of the genus Arbacina to be known in the Neogene of western France after A. emmae NÉRAUDEAU, 2003 from the Messinian of Brittany and A. pareyni ROMAN, 1983 from the Pliocene of Normandy; Tremaster romani, new species and genus of temnopleurid, characterised by an uncommon supra-ambital tuberculation, with excressences of the test surrounding scrobiculated tubercles. A third new marsupiate echinoid, Coptechinus sp. A, has been found too, but it is very difficult to know if it is a new species or a new morphotype of C. bardini. Contrarily to previous interpretations, this study points out the high diversity of western European Neogene marsupiate echinoids, a diversity comparable to the one of Australian Neogene marsupiate echinoids. However, breeding species from Australia and western Europe are clearly different and similarities exist between these two marsupiate echinofaunas at the family level only. Indeed, both in Australia and western Europe, the breeding species of echinoids mainly belong to the temnopleurid family, with the austral genus Paradoxechinus, on the one side, the north European genera Temnotrema and Coptechinus, on the other side. Moreover, the arbaciids consist of three marsupiate species of the genus Arbacina in Europe when no breeding species of this family exist in Australia. On the contrary, several breeding irregular echinoids have been found in the Australian Tertiary deposits (Spatangoids and Clypeasteroids) when not any marsupiate irregular echinoid has been discovered at present in the western Europe Neogene deposits.


2019 ◽  
Vol 66 (2) ◽  
Author(s):  
Canan Tureli ◽  
Irem Nur Yesilyurt

The swimming crab, Charybdis (Goniohellenus) longicollis Leene, 1938, is a Lessepsian migrant into the Mediterranean and little is known about its biology in Iskenderun Bay, north-eastern Mediterranean, Turkey. The size of crabs, sex-ratio and spawning period of this species was defined from 951 specimens in order to understand their reproduction and development in the NE Mediterranean Sea. The crabs were found to occur throughout the year. Carapace width (CW) ranged between 7.22 to 100.60 mm and total weight ranged from 1.34 to 164.09 g. Male-female sex ratio was 0.6:1. Highest gonado-somatic index (GSI) was seen in March and September for females and in May for males. Ovigerous females were present throughout the year, with peak spawning activity in July and September. The CW of the ovigerous female crabs ranged between 23.71 and 95.93 mm. In winter months, GSI of males and females decreased. However, spawning season of C. (G.) longicolis in Yumurtalık Cove was observed throughout the year.


1982 ◽  
Vol 45 (2) ◽  
pp. 245-259 ◽  
Author(s):  
Bruce Ingham

It was remarked by the Czech linguist Pavle Ivi that it would be possible for particular linguistic landscapes to fit easily into particular theories about linguistic diffusion. He was referring especially to the difference between the Stammbaum or family tree theory and the Wellentheorie or wave theory as expounded by the Neo-grammarians. The family tree theory sees dialect features as genetically transmitted and traceable to the homeland of the group concerned. The wave theory on the other and concentrates more on the present geographical location of the speakers and traces the geographical diffusion of dialect features across the landscape independently of the movement of groups of people. If a distinction between family tree landscapes and wave theory landscapes is possible, as Ivi suggests, then the dialectology of the bedouin tribes of north-eastern Arabia falls quite definitely into the first group. In a previous article the writer described the dialect of the Muṭair tribe of Eastern Arabia which a dialect of the Central Najd type akin to the dialects of Central Najd and the 'Aniza tribes of the Syrian Desert. The Ḍhafr, although direct neighbours of the Muṭair to the north and west, speak a dialect of a quite different kind, basically North Najd, akin to the speech of the Jabel Shammar and the Shammar tribes, but with some admixture of Central Najd features. It seems that in this area dialect is a marker of tribal identity and since there is no gradation between membership of the Ḍhafr tribe and membership of the Muṭair, the dialects are similarly clearly demarcated geographically. The boundary between the Ḍhafr and the Muṭair also Muṭair also constitutes a more far-reaching boundary between Ahl al-Shiml and Ahl al-Jinb, northern and southern bedouin. This division is marked by dialect features and also certain other cultural externals such as dress and tent structure.


Zootaxa ◽  
2011 ◽  
Vol 2985 (1) ◽  
pp. 55 ◽  
Author(s):  
NESRINE AKKARI ◽  
HENRIK ENGHOFF

The family Pyrgodesmidae and the genus Rharodesmus Schubart, 1960 are recorded for the first time from Tunisia. A new species, Rharodesmus tabarkensis, is described using scanning electron microscopy, and its membership in the genus and the family is discussed. Notes on west Palaearctic pyrgodesmid species are provided with considerations on the family Pyrgodesmidae.


2018 ◽  
Vol 52 (2) ◽  
pp. 455-462 ◽  
Author(s):  
G. Ya. Doroshina ◽  
I. A. Nikolajev

Sphagnum mires on the Greater Caucasus are rare, characterized by the presence of relict plant communities of glacial age and are in a stage of degradation. The study of Sphagnum of Chefandzar and Masota mires is carried out for the first time. Seven species of Sphagnum are recorded. Their distribution and frequency within the North Caucasus are analyzed. Sphagnum contortum, S. platyphyllum, S. russowii, S. squarrosum are recorded for the first time for the study area and for the flora of North Ossetia. The other mosses found in the study area are listed.


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