214 Works

Composition et variations spatio-temporelles du régime alimentaire de Trachurus trachurus (Carangidae) de la côte atlantique marocaine

Fatima Wahbi, François Le Loc'h, Amina Berreho, Aissa Benazzouz, Abdelouahed Ben Mhmed & Ahmed Errhif
Le régime alimentaire du chinchard d’europe, Trachurus trachurus (Linnaeus, 1758), a été étudié au sud de la côte atlantique marocaine, entre cap blanc et cap boujdour (21°00’N-26°30’N). L’échantillonnage a été réalisé durant les saisons chaude (juin-juillet-août) et froide (novembre-décembre) en 2007 et 2008. L’analyse du contenu stomacal de 456 individus a montré que le régime alimentaire de T. trachurus est diversifié, composé essentiellement de crustacés pélagiques qui représentent ses proies préférentielles. une analyse en composante...

Coris julis cleaning a Mola mola, a previously unreported association

Nuno Vasco-Rodrigues & Patricia M. Cabrera
Cleaning activity of a Coris julis (Linnaeus, 1758) on a Mola mola (Linnaeus, 1758) was reported in June 2015 in La Herradura (Spain), Mediterranean Sea. This interaction lasted for more than 70 seconds with the cleaner focusing mainly in the area of the head and gills of the host, who remained motionless during the event. This represents the first report for this kind of interaction between these two species.

Notes on the feeding habits of Gaidropsarus guttatus (Collett, 1890) from Faial Island, Azores, NE Atlantic, PT

Madaíl Ávila, Donzília Nunes, Leonardo F. Machado & João P. Barreiros
Gaidropsarus guttatus is a nocturnal predator that dwells in rocky bottoms of Macaronesian coastal areas. There are no studies as yet on the feeding ecology of this species. This paper describes the feeding habits of this quite unknown species, based on a sample from Faial Island, Azores, Portugal. This sample is composed of 82 specimens collected between August 1997 and April 1999, both in intertidal pools and sub-tidal shallow waters (max. depth 10 m). 95%...

First records of the seahorse Hippocampus hippocampus in Galician waters (NW Spain)

Sonia Valladares, Rafael Bañón, Almudena López, Carmen Bouza, Alexandro Chamorro, Manuel Enrique García & Miquel Planas
First records of the short-snouted seahorse Hippocampus hippocampus from Galician waters (NW Spain) are reported. Nine adult specimens (3 males and 6 females) between 118-183 mm standard length (SL) were identified combining morphological and molecular approaches. Specimens were caught during scuba diving surveys carried out between 2010 and 2012. These records constitute valuable information to be considered in assessment measures of H. hippocampus populations for conservation purposes.

Status and distribution of Smilosicyopus species (Teleostei, Gobioidei)

Philippe Keith & Laura Taillebois
Status and distribution of Smilosicyopus species are unclear, as they are rare, difficult to sample and to distinguish. During thirteen years, many specimens were collected by the MNHN and collaborators in Pacific islands, including samples in all type localities. These specimens were compared and COI gene sequenced. Seven out of the eight species known to date were confirmed, while S. mystax is considered a synonym of S. leprurus. Moreover, Smilosicyopus species have a broader distribution...

Aspects qualitatifs et quantitatifs de l’alimentation de Clarias buettikoferi (Siluriformes ; Clariidae) dans la forêt des marais Tanoé-Ehy (Côte d’Ivoire)

Yao Aristide Konan, Mamadou Bamba & Tidiani Koné
L’alimentation du poisson-chat Clarias buettikoferi Steindachner, 1894 a été étudiée dans la forêt des marais Tanoé-Ehy (Côte d’Ivoire). Les poissons ont été capturés mensuellement à l’aide de filets verveux et de filets maillants entre mars 2012 et février 2013. Au total, 208 poissons ont été capturés, de longueur standard et de poids variant entre 90 mm et 260 mm LS et entre 7,3 g et 132 g, respectivement. L’indice de vacuité général était de 14,4%,...

Growth estimation of Merluccius merluccius off the northern coast of Tunisia

Widien Khoufi, Jean-Louis Dufour, Héla Jaziri, Safouène Elfehri, Romain Elleboode, Elise Bellamy, Sadok Ben Meriem, Mohamed Salah Romdhane & Kélig Mahé
Growth parameters of any species are fundamental for biological or dynamic studies. The quality of the estimation for these parameters directly impacts on species stock assessment and, as a consequence, on fisheries management. In order to improve fishery and species stock management, growth analysis, especially by sex, is recommended. In this study, otoliths were used to estimate growth parameters of Merluccius merluccius Rafinesque, 1810. Hake is well-known as being a species in which otolith interpretation...

Monophyly of the genus Liopsetta (Pleuronectidae)

Elena Voronina & Bruno Chanet
A phylogenetic analysis of 15 flatfish species based on 40 morphological characters was conducted to determine the interrelationships of the genera Liopsetta, Pleuronectes and Pseudopleuronectes. The results indicate that Liopsetta forms a monophyletic lineage defined by the reduction of the infraorbital sensory canal of the ocular side, small scale size and small body size. The monophyly of Pseudopleuronectes (including P. obscurus) is supported by the interrupted coronal commissure and of Pleuronectes by the presence of...

La collection de préparations histologiques effectuées par Paul Gervais (1816-1879) sur le squelette des “poissons”

François J. Meunier & Marc Herbin
Paul Gervais (1816-1879) fut titulaire de la chaire d’Anatomie comparée du Muséum national d’Histoire naturelle de 1868 à 1879. Pendant la dernière partie de sa carrière, il s’était intéressé à la structure microscopique du squelette des vertébrés, tout particulièrement de celui des mammifères fossiles, mais aussi de divers éléments minéralisés de “Poissons”1 actuels. Il avait effectué un certain nombre de préparations microscopiques (plaques minces) de pièces squelettiques de chondrichtyens et d’ostéichtyens variés dont une quarantaine...

New biological data on Fistularia commersonii in the central Mediterranean Sea

Luca Castriota, Manuela Falautano, Pietro Battaglia, Alberto Oddo & Franco Andaloro
Preliminary data on age, growth and diet of bluespotted cornetfish Fistularia commersonii Rüppell, 1838 (Fistulariidae) in the central Mediterranean Sea are provided. In the study area, this invasive Lessepsian fish showed piscivorous behaviour, focusing mainly on labrids, clupeids and sparids. Prey composition suggests that bluespotted cornetfish explores various habitats for hunting. Prey fishes were mainly juveniles and their size showed positive correlation with predator size. Estimated by vertebrae readings, ages of bluespotted cornetfish, having sizes...

A proposed best practice approach to overcome unverified and unverifiable “first records” in ichthyology

Giambattista Bello, Romain Causse, Lovrenc Lipej & Jakov Dulčić
We propose here a best practice protocol to be followed by prospective authors of first record notes; it was prompted by the publication in scientific journals of several erroneous “first records”. This includes accurate checking of available regional fish diversity catalogues; designation and deposit of voucher specimen(s) in curated collections with proper information; inclusion of photograph(s), meristic and morphometric characters, and, whenever possible, DNA sequences (Barcoding) of the specimen(s). Examples are taken from the Mediterranean...

A genetic method to differentiate Petromyzon marinus ammocoetes from those of the paired species Lampetra fluviatilis and L . planeri

Maria C. Urdaci, Catherine Taverny, Anne-Marie Elie & Pierre Élie
Petromyzon marinus and Lampetra sp. are protected by international conventions (Bern, 1979; Habitats directive, 1992). To estimate the abundance, and thus the precariousness of each population, it is advisable to distinguish the larvae of each species, because they may use the same environments in rivers. However, these larvae were indistinguishable on morphological criteria (oral disk, pigmentation, myomeres,…). We used a molecular method for discriminating between P. marinus and Lampetra sp. A 560 bp DNA fragment...

Cystic structures in fish ovaries: more common than we think. The case study of Sarpa salpa (Sparidae)

Rafaela Barros Paiva, Ana Neves, Ana Rita Vieira, Vera Sequeira, Catarina Vendrell, Maria José Costa, Maria Peleteiro & Leonel Serrano Gordo
Ovaries of salema Sarpa salpa (Linnaeus, 1758) presented hard structures easily seen macroscopically. Histological analysis suggested that these structures correspond to masses of hydrated oocytes, which are remnants of an incomplete or unsuccessful spawning event. The generalised linear model (GLM) showed that the presence of cysts was significantly affected by month. The fact that these structures appear frequently and in high prevalence may suggest that they are related to or associated with the reproductive strategy...

Spinal deformities in Amazon sailfin catfish Pterygoplichthys pardalis (Siluriformes: Locariidae), an introduced fish in the Palizada River (Southeastern Mexico)

Armando T. Wakida-Kusunoki, Luis E. Amador-Del Ángel & Claudia Moreno-Miranda
The Amazon sailfin catfish Pterygoplichthys pardalis (Castelnau, 1855) is an introduced species in the Palizada River (Southeastern Mexico). Since 2008, we performed investigations on the populations of this species. In June and November 2012, and in February and March 2013, we captured ten specimens, which displayed kyphosis and scoliosis of the spinal column, diagnosed by high resolution X-ray. This is the first report of axial skeleton deformities in the genus Pterygoplichthys.

Range extension of tripletail Lobotes surinamensis (Lobotidae) in the Adriatic Sea. A northernmost record in the Mediterranean

Jakov Dulčić, Branko Dragičević, Lovrenc Lipej & Mauro Štifanić
On 12th May 2013, a specimen of Lobotes surinamensis (Lt = 342 mm, W = 845.32 g) was caught in Raša Bay (Northern Adriatic, southern coast of Istra Peninsula). This is the northernmost occurrence of this species in the Adriatic and Mediterranean Sea.

New record of the bothid flounder Parabothus taiwanensis (Bothidae, Pleuronectiformes) from the southern Pacific Ocean (Vanuatu Archipelago) with description of a new diagnostic character

Elena Voronina & Romain Causse
A finding of the rare species of bothid flounder Parabothus taiwanensis in the Vanuatu Archipelago, previously known only from the East China Sea, is reported. The distribution of this species can now be extended considerably to the south-east, to the Coral Sea, with depth to 250 m. Illustrated descriptions of specimens are provided, and a new character, the perforation of the bases of dorsal and anal fin membranes, can be added to the diagnosis of...

First record of Lagocephalus sceleratus in the Adriatic Sea (Croatian coast), a Lessepsian migrant

Jadranka Sulić Šprem, Tatjana Dobroslavić, Valter Kožul, Ana Kuzman & Jakov Dulčić
The first record of a Lessepian migrant Lagocephalus sceleratus (Gmelin, 1789) in the Adriatic Sea was noted on 17 Oct. 2012. A sexually mature female (Lt = 66.3 cm) weighing 3.531 kg was caught on the northern side of Jakljan Island (southern Adriatic).

Three new species of Lentipes from Indonesia (Gobiidae)

Philippe Keith, Renny K. Hadiaty, Nicolas Hubert, Frédéric Busson & Clara Lord
Three new species of Lentipes (L. argenteus, L. ikeae and L. mekonggaensis), freshwater gobies, are described from streams of Sumatra, Java, Bali and Sulawesi (Indonesia). They differ from other species of the genus by a combination of characters including an urogenital papilla lacking lateral lobes and retractable into a sheath-like groove, the number of pectoral fin rays, the number of scales, tricuspid teeth in the upper jaw, and a specific body colour in males.

Les engins et techniques de pêche utilisés dans la baie de Loango, République du Congo, et leurs incidences sur les prises accessoires

Alexandre Girard, Hélène Dembe Louvinguila, Nathalie Breheret, Jonathan Monsinjon, Margaux Charra, Elodie Protat, Hélène Roche, Christophe Ngokaka & Marc Girondot
une étude a été menée pour évaluer les risques de captures accessoires par les différents engins et techniques de pêche utilisés dans la baie de Loango au Congo-brazzaville. La liste des espèces cibles est donnée de même que les espèces non-ciblées. Parmi celles-ci, seules des tortues marines sont observées. L’étude montre que les filets dormants à grandes mailles sont plus nocifs pour les tortues marines que les filets à petites mailles. Les filets à petites...

The anatomy of the thyroid gland among “fishes”: phylogenetic implications for the Vertebrata

Bruno Chanet & François J. Meunier
A study on the structure of the thyroid gland of 288 vertebrate species, conducted both on 99 dissections and analysis of the literature, leads to propose the following interpretations: i) the presence of this gland is a synapomorphy of Vertebrata; ii) a compact gland is a synapomorphy of Gnathostomes; iii) a diffuse gland is a possible synapomorphy of Halecostomes; iv) several independent cases of concentration in a few lobes in several groups, like Scaridae, Scombridae...

Emmelichthys marisrubri, a new rover from the southern Red Sea (Teleostei: Emmelichthyidae)

Ronald Fricke, Daniel Golani & Brenda Appelbaum-Golani
Emmelichthys marisrubri sp. nov. is described from three specimens, which were trawled off Eritrea in the southern Red Sea. The species is characterised by the spinous and soft-rayed portions of dorsal fin separated by a gap containing four short isolated spines, which are protruding over the dorsal surface of the body; depth of body 16.5-20.2% SL; lateral-line scales 80-83; dorsal-fin spines 12-13; dorsal-fin soft rays 8; pectoral-fin rays 18-20, total gill rakers 26-31. A revised...

The silver-cheeked toadfish Lagocephalus sceleratus (Gmelin, 1789) reaches Italian waters

Jakov Dulčić & Branko Dragičević
On 8 April 2014, one specimen of Lagocephalus sceleratus (Gmelin, 1789) (male; total length, TL = 53 cm; weight, W = 1536 g) was captured in Vodice Bay (middle eastern Adriatic, Croatian waters). This represents the third record of this species in the eastern Adriatic (Croatian waters).

First record of the Lessepsian species Hemiramphus far (Hemiramphidae) in Italian waters

Manuela Falautano, Luca Castriota, Pietro Battaglia, Teresa Romeo & Franco Andaloro
Several specimens of the Lessepsian species Hemiramphus far (Forsskål, 1775) were caught by fishermen in Lampedusa Island (Straits of Sicily) in January and August 2013. Their morphometric and meristic characteristics, as well as diet observations, are reported. These findings represent the first documented record of this species in Italian waters and are the missing link in its migration pattern from the eastern Mediterranean Basin to the western one.

Melanic hyper-pigmentation in the genus Lepidion (Gadiformes: Moridae)

Rafael Bañón, Juan Carlos Arronte, Wolf Isbert, Germán Coscelli & Francisco Sánchez
Two cases of melanic hyper-pigmentation in Lepidion lepidion are reported from two localities in Spanish Atlantic waters. A bibliographic search revealed the occurrence of this chromatic anomaly in two other Lepidion specimens, the first of them reported in the late 19th century. Macroscopically, the colour abnormality was characterized by the presence of numerous cutaneous irregular dark patches over the head, body and fins. Microscopically, melanosis corresponds to hyperplasia of dermal melanophores. Although the cause of...

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