183 Works

First record of Gobius couchi (Gobiidae) in the Ionian Sea

Radek Šanda & Marcelo Kovačić
Three specimens of Gobius couchi Miller & El-Tawil, 1974, recently found in the ichthyological collection of National Museum, Prague, represent the first record of this species in the Ionian Sea and Greece, and one of a few in the entire Mediterranean. Analysis of mitochondrial gene cytochrome b confirmed the species identification.

First record of Gobius roulei (Gobiidae) in the Ligurian Sea

Ha Trieu Hung Liu, Harald Ahnelt, Giovanni A.C. Balma & Giovanni B. Delmastro
Four specimens of Gobius roulei, a rare gobiid in the Mediterranean Sea, have been collected in the Gulf of Genova. These specimens represent the first record of this species in the Ligurian Sea.

Reidentification of Buenia specimens (Gobiidae) from Banyuls-sur-Mer (France, western Mediterranean)

Marcelo Kovačić & Robert A. Patzner
Specimens from the collection of Zoologisches Museum, Hamburg identified as Buenia jeffreysii (Günther, 1867) were examined. They were collected at Banyuls-sur-Mer (France, western Mediterranean) on 11 June 1979. The specimens were reidentified in the present work as Buenia affinis Iljin, 1930, based on morphological evidences. This is the first positive finding of this species in the north-western Mediterranean.

Ecology and diet of the endemic Telestes ukliva (Cyprinidae) in the Cetina River system, Croatia

Davor Zanella, Zlatko Mihaljević, Milorad Mrakovčić & Marko Ćaleta
The first data on the population ecology and diet of the endemic ukliva dace (Telestes ukliva Heckel, 1843) are presented. Along the Cetina River system, the ukliva dace accounted for 38.4% of the overall fish fauna abundance, but only 6.4% of total fish biomass. The ukliva dace population exhibited migratory behaviour during the year and showed a strong temporal component; inhabiting the river main course in spring and summer, and colonising springs and subterranean waters...

Record size of Salmo dentex (Heckel, 1851) (Salmonidae) from Neretva River (Bosnia and Herzegovina)

Branko Glamuzina, Jakov Dulčić, Pero Tutman, Sanja Matić-Skoko, Sanja Tomšić & Vlasta Bartulović
A total length of 984 mm was recorded for the species Salmo dentex. Total fresh weight was 11220 g. Specimen was caught on 25 February 2008 by driftnet in Neretva River (about 5 km north of town ¸apljina, Bosnia and Herzegovina).

Seasonal and spatial variability of condition and length-weight relationship of European Chub (Leuciscus cephalus) inhabited in Upper Çoruh River (Turkey)

Serdar Bektas, Ayhan Yildirim & Murat Arslan
Seasonal and spatial variations in Fulton condition factor (K), somatic index (SI) and length-weight relationship (L-WR) for Leuciscus cephalus from Upper Çoruh River (Turkey) were analysed from March 2000 to February 2001. There was slightly temporal variation in both K and SI for adults and juveniles with generally lower value in summer and winter and higher value in spring. Although a considerable spatial variation in K was reported, there was no statistically difference in SI....

First record of Pomatoschistus marmoratus (Gobiidae) on the Tunisian coasts

Randa Mejri, Marcelo Kovačić & Oum Kalthoum Ben Hassine
Eleven specimens of the marbled goby Pomatoschistus marmoratus (Risso, 1810), were collected in the Tunisian coasts. The present finding is the first record for the Tunisian coasts and a proof of the presence of this species in the southern side of the Mediterranean Sea. This finding brings new data on the morphology and the ecology of this fish.

Reproductive strategy and spawning activity of sand flathead, Platycephalus bassensis (Platycephalidae)

Ali Bani, Natalie Moltschaniwskyj & Neville Pankhurst
The aim of this study was to describe and determine the reproductive and spawning strategy of the sand flathead, Platycephalus bassensis Cuvier, 1829 based on histological analysis of ovary and testis. The presence of multiple group synchronous gamete development in both sexes within a reproductive season confirmed the hypothesis that sand flathead is a serial spawner and is reproductively active from October to March. Spawning frequency, estimated from a combination of information acquired from field...

Transformations of the texture and the mineralization of the dentary bone in the Atlantic salmon, Salmo salar L. (Salmonidae), during anadromous migration

Adnane Kacem & François J. Meunier
During its anadromous migration, the Atlantic salmon, Salmo salar, shows morphological transformations that affect various parts of its skeleton. The most spectacular concerns the jaws that lengthen and thicken to form a “kype” in the males. During this time, scales and vertebrae show important erosion in the males as in the females. The aim of the present work was to verify if the dentary has a positive osseous global assessment: what is the true balance...

Notes on Gobiidae (Teleostei) from soft bottoms of the Portuguese coast

Pedro L. da Cunha & Maria Margarida Antunes
In the past 20 years a total of 14 gobiid species were caught, by LNETI/INETI researchers, in five coastal ecosystems on soft bottoms of the Portuguese coast. Species distribution and ecological significance of species abundance are discussed.

Occurrence of the short-snouted seahorse Hippocampus hippocampus in the central North Sea

John K. Pinnegar, Vanessa Stelzenmüller, Jeroen Van Der Kooij, Georg H. Engelhard, Neil Garrick-Maidment & David A. Righton

First record of Tortonese’s goby, Pomatoschistus tortonesei, from Tunisia

Randa Mejri, Domia Menif, Ibtissem Louiz & Oum Kalthoum Ben Hassine
The gobiid Pomatoschistus tortonesei Miller, 1968, which geographic distribution was restricted to Marsala lagoon (Western Sicily, Italy) and Farawa lagoon (Libya), was found for the first time in six Tunisian lagoons. The meristic counts and morphometric measurements of P. tortonesei are determined on the basis of 27 specimens.

First record of the Lessepsian migrant Lagocephalus spadiceus (Tetraodontidae) in the Sea of Marmara

Sezginer Tuncer, Herdem Aslan Cihangir & Murat Bilecenoglu

First record of Gonostoma elongatum (Gonostomatidae) in the central Mediterranean Sea

Antonio Potoschi, Pietro Battaglia, Luca Castriota & Franco Andaloro
One specimen of Gonostoma elongatum Günther, 1878 (Stomiiformes, Gonostomatidae) was caught off the Sicilian coast (Italy) by bottom trawl between 600 and 700 m depth. Morphometric and meristic character values are reported. This is the first record of this mesopelagic fish in central Mediterranean (southern Tyrrhenian Sea). The hypothesis of its immigration from the Atlantic Ocean is discussed.

Fish assemblages in a mangrove shoreline lagoon of Guadeloupe (FWI): spatial and temporal distribution patterns along environmental gradients

Amandine Valet, Yolande Bouchon-Navaro, Max Louis & Claude Bouchon
Mangroves are recognized as important habitats for fish communities and serve as nurseries, feeding grounds or shelters. However, several studies have reported a worldwide regression of mangrove extent due to coastal management, land reclamation and wood cutting. Studies of fish assemblage patterns in mangroves are needed in order to understand the processes structuring fish communities and to evaluate the influence of environmental or anthropogenic changes on these distributions. Fish were collected with nets in 32...

“Whale Shark Expedition”: Observations on Rhincodon typus from Arta Bay, Gulf of Tadjoura, Djibouti Republic, Southern Red Sea

Danilo Rezzolla & Tiziano Storai
The present work is the report of two ecotouristic expeditions carried out in the Gulf of Tadjoura (Djibouti Republic, Southern Red Sea) and having as main objectives a contribution to the increasing of biological and ecological knowledge about whale shark Rhincodon typus (Smith, 1828) in these waters by means of observations and photo-identification tools. The survey was conducted for five days in January-February 2007 and for six days in January 2009, recording a total of...

The family Moridae (Gadiformes) from the Cape Verde Islands (eastern-central Atlantic Ocean), with first record of Physiculus cyanostrophus

José A. González, Oksana Tariche, José I. Santana, Antonio M. García-Mederos, Víctor M. Tuset, Sebastián Jiménez & Manuel Biscoito
An account of the species of the family Moridae from the Cape Verde Islands is given. Physiculus cyanostrophus Anderson and & Tweddle, 2002 and possible new species of this genus are recorded for the first time from the Cape Verdes, which brings to six the number of morid species recorded for the area. The presence of Gadella imberbis (Vaillant, 1888) is confirmed in this archipelago. Available data on distribution, habitat, morphometry and reproduction of the...

Premier signalement de Pontinus kuhlii (Scorpaenidae) en Tunisie (Méditerranée sud-occidentale)

Lluís Mercader & Antoni Garcia-Rubies
Une rascasse du large, Pontinus kuhlii (Bowdich, 1825), de 375 mm LT, a été capturée le 29 juillet 2009 à la palangre de fond à une profondeur de 90 m près des îles La Galite, à 18 milles au nord de la Tunisie et 90 milles au sud de la Sardaigne. Cette mention constitue le premier signalement de cette espèce sur la côte tunisienne où le spécimen pêché est le plus grand prélevé jusqu’à ce...

Scophthalmus Rafinesque, 1810: the valid generic name for the turbot, S. maximus (Linnaeus, 1758) [Pleuronectiformes: Scophthalmidae]

Nicolas Bailly & Bruno Chanet
In the past 50 years, the turbot is referred to either as Scophthalmus maximus (Linnaeus, 1758) or Psetta maxima (Linnaeus, 1758) in the literature. Norman (1931) had argued that the valid name for the turbot was Scophthalmus maximus. However, his recommendation was never universally accepted, and today the confusing situation exists where two generic names are still being used for this species. We address this issue by analysing findings from recently published works on the...

Melatonin receptors in the brain and the pituitary of a Venezuelan catfish, “Sierra Negra” (Oxydoras sifontesi): A preliminary 2-[125I] iodomelatonin binding study

Hilda Y. Guerrero, Elizabeth Cardillo, Gilmer Vanegas, Germán Poleo & Daissy Marcano
We have studied melatonin binding sites in the brain of the tropical catfish O. sifontesi using in vitro autoradiography and receptor binding assay. Specific binding was found in brain areas involved in the processing of visual information and in the pituitary. Binding was saturable around 150 pM. KD and Bmax were calculated.

Quelques aspects reproductifs de l’anchois (Engraulis encrasicolus) de la pêche artisanale du littoral est ivoirien

Siaka Ouattara, Agathe Fantodji & Mamadou Ouattara
Quelques aspects du cycle de reproduction de l’anchois (Engraulis encrasicolus) de la pêche artisanale ont été étudiés de septembre 2004 à mars 2006. Les échantillonnages ont été réalisés dans des campements et villages, le long du littoral ivoirien où les sennes de plage et les sennes tournantes coulissantes constituent les engins de la pêche artisanale utilisés pour la capture de ces poissons entre 6 à 10 m de profondeur. La sex-ratio globale observée est de...

Relationships between fish length and otolith length for nine teleost fish species from the Mediterranean basin, Kerguelen Islands, and Pacific Ocean

Fabien Morat, Daniela Banaru, Bastien Mérigot, Ioannis E. Batjakas, Stéphane Betoulle, Matthias Vignon, Raymonde Lecomte-Finiger & Yves Letourneur
The relationship between fish size and otolith size was established for nine species from different geographical areas, the Mediterranean basin, Kerguelen Islands and the tropical Pacific Ocean. For all species, a significant linear relationship was found between fish size and otolith size. However, the ‘lake ecotype’ of the brown trout (Salmo trutta fario) from Kerguelen did not show such relationship, contrary to the two other ‘ecotypes’ from rivers and mixed biotopes. The reasons for such...

New data on the structure and the chondrocyte populations of the haemal cartilage of abdominal vertebrae in the adult carp Cyprinus carpio (Ostariophysii, Cyprinidae)

Louise Zylberberg & François J. Meunier
The bulk of cartilage retained in the haemal arch of the abdominal vertebrae of adult carps was examined using scanning and transmission electron microscopy. A special attention was devoted to the mineralization of the cartilage. The mineralization is spheritic but the processes differ in the proximal and distal parts. The proximal hyaline cartilage contacts the lamellar bone of the centrum without an intermediate chondroid bone; it mineralizes although chondrocytes bearing a hypertrophic phenotype were not...

First record of the rare deep-water gobiid Thorogobius rofeni (Gobiidae) from the Southeast Atlantic

Michael Sauberer & Harald Ahnelt

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  • 2020
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