1,278 Works

Premier signalement d’Aulotrachichthys sajademalensis (Kotlyar, 1979) à l’île de la Réunion (océan Indien)

Jean-Claude Quéro & Jérôme Spitz
Parmi les poissons récoltés en surface à l’île de La Réunion (océan Indien), suite à l’éruption volcanique du Piton de La Fournaise en avril 2007, se trouvait un petit spécimen (1,8 cm de longueur standard) d’Aulotrachichthys sajademalensis. Cette espèce de Trachichthyidae a été décrite d’après un spécimen capturé au banc de Saya de Malha (Kotlyar, 1979). Cette nouvelle observation étend vers le sud l’aire de répartition connue pour l’espèce.

Liparids from the Eastern sector of Southern Ocean and first information from molecular studies

Guy Duhamel, Mélyne Hautecoeur, Agnès Dettaï, Romain Causse, Patrice Pruvost, Frédéric Busson, Arnaud Couloux, Philippe Koubbi, Richard J. Williams, Catherine Ozouf-Costaz & Gabrielle Nowara
Two cruises in the eastern sector of the Southern Ocean (POKER 2006 off the Kerguelen Islands and CEAMARC 2008 off Terre Adelie and George V Land), with extensive surveys, provided an interesting and abundant liparid fish collection (two genera, 13 species, 90 specimens). The fish were studied with modern approaches in systematic studies, both from morphoanatomy and molecular sequences (COI Barcode). In addition to providing useful descriptions of species often known from few specimens, the...

Diet of the grey gurnard, Eutrigla gurnardus in the Adriatic Sea, north-eastern Mediterranean

Stefano Montanini, Marco Stagioni & Maria Vallisneri
A total of 449 individuals of grey gurnard Eutrigla gurnardus (Linnaeus, 1758) were collected between December 2007 and July 2008 by bottom trawl surveys in the Adriatic Sea, north-eastern Mediterranean. Stomach contents were investigated in order to analyse diet composition according to fish size and depth. The most important prey were Crustacea, mostly Mysidacea such as Lophogaster typicus and Decapoda such as Goneplax rhomboides and Philocheras bispinosus, followed by Teleostei, mostly Perciformes as Gobius niger...

Cycle de reproduction de Symphodus (Crenilabrus) tinca sur les côtes nord-est de la Tunisie

Saoussen Ben Slama, Domia Menif, Rafika Fehri-Bedoui & Oum Kalthoum Ben Hassine
La biologie de la reproduction du Crénilabre paon Symphodus (Crenilabrus) tinca (Linnaeus, 1758) a été analysée en termes de sex-ratio et de cycle de reproduction. Au total, 683 individus ont été collectés sur quatre sites de débarquement de la pêche artisanale des côtes nord-est de la Tunisie, de septembre 2004 à août 2005. La sex-ratio était en faveur des mâles (1,38 : 1) et les individus de taille supérieure à 27 cm étaient majoritairement de...

Intraspecific chromosome analysis in Rhamdia quelen (Siluriformes, Heptapteridae)

Vivian Patricia Oliveira de Moraes, Juliana de Souza Carneiro & Ana Lúcia Dias
We studied the chromosomes of Rhamdia quelen. All specimens presented 2n = 58 and 36m+16sm+6st and FN = 116 and showed metacentric B chromosomes of medium size. The specimens from Água dos Patos river, Água das Pedras river and fish farm station showed a secondary constriction in the short arm of pair 28 (st), coincident with the NOR, while in the Taquari river population, the NOR was seen in the terminal region of the short...

First record of Epinephelus marginatus (Serranidae: Epinephelinae) in the eastern English Channel

Kélig Mahé, Marie-Laure Cochard, Jean-Claude Quéro, Karine Sevin, Nicolas Bailly & Alain Tetard
This is the first record of a Dusky grouper specimen (Epinephelus marginatus, Lowe, 1834), which is essentially a Mediterranean species, in the Eastern English Channel. It has been caught on 10 June 2011 in the Bay of Seine. It measured 66 cm and weighted 5.5 kg. This specimen was a female of 12 years old.

First report of cleaning activity of Lepadogaster candolii (Gobiesocidae) in the Mediterranean Sea

Boris Weitzmann & Lluís Mercader
Cleaning behaviour is reported in Lepadogaster candolii Risso, 1810 for the first time. The observation took place in August 2009 during a SCUBA-diving at the Medes Islands Marine Reserve (NW Mediterranean). The individual, belonging to a species usually considered as cryptobenthic, was cleaning the mouth of a large Mediterranean dusky grouper Epinephelus marginatus (Lowe, 1834), who was holding its mouth open and keeping a still position at a distance from the ground. Up to now,...

First record of Terapon theraps (Terapontidae) in the Aegean Sea (Greece)

George Minos, Anastasia Imsiridou & Panos S. Economidis
The Indo-Pacific largescaled terapon, Terapon theraps Cuvier, 1829 (Terapontidae), is reported on the basis of an alive specimen, in the inshore area of Thermaikos gulf (Macedonia, Greece). This is the second record for the whole Mediterranean and the first for the Aegean Sea. Identification, origin and spreading processes – ballast water being very probable for its transportation – are also discussed.

Développement postembryonnaire du squelette céphalique en relation avec les changements morphologiques externes chez Labeo parvus (Ostariophysi, Cyprinidae)

Djiman Lederoun, Elie Montchowui, Philippe Lalèyè, Pascal Poncin & Pierre Vandewalle
Le développement postembryonnaire de la morphologie externe et du squelette céphalique chez Labeo parvus a été étudié de la fin de l’éclosion à 29 jours (j) post-éclosion. Pendant cette période, la croissance moyenne est de 1,7 mm/jour. La bouche s’ouvre à 18 h et le sac vitellin est résorbé à 36 h. A l’éclosion aucune structure cartilagineuse n’est observée. À 18 h, les trabécules, les plaques paracordales, le plancher des capsules otiques, les cartilages de...

Dietary comparison of pike-perch, Sander lucioperca (Linnaeus, 1758) and catfish, Silurus glanis Linnaeus, 1758 in Sidi Salem dam reservoir (Tunisia)

Houda Djait, Lilia Bahri-Sfar, Houcine Laouar, Néjiba Missaoui & Oum Kalthoum Ben Hassine
Sidi Salem dam (Northern Tunisia) hosts two introduced predatory fish species: the pike-perch, Sander lucioperca, and the catfish, Silurus glanis. We examined the stomach contents of 162 S. glanis and 547 S. lucioperca specimens sampled along two years from four different stations in the dam reservoir. Both species were found to feed mainly on teleost fishes, with the cyprinids Sarmarutilus rubilio and Scardinius erythrophthalmus as the main preys. One species of crustacean and insect larvae...

A new Stiphodon (Gobiidae) from Indonesia

Philippe Keith, Frédéric Busson, Sopian Sauri, Nicolas Hubert & Renny K. Hadiaty
A new species of Stiphodon, an amphidromous goby, is described from streams of three islands in Indonesia, Java, Bali and Lombok. It differs from other species of the genus by a combination of characters including 14-15 pectoral rays, a second dorsal fin with nine segmented rays, fewer scales in predorsal, transverse forward and transverse back series, and a diagnostic golden and black pattern in male.

Ecomorphology and diet of two species of Acestrorhynchus from Brazilian Northeast

Elãine C. dos S Dourado, Jorge L.S. Nunes & Nivaldo M. Piorski
Acestrorhynchus falcatus (Bloch, 1794) and A. heterolepis (Cope, 1878) are two species frequently found in rivers from Baixada Maranhense, Maranhão State, northeastern of Brazil. The ecomorphological adaptations of these species were studied based on a collection of 445 specimens using morphometric tools. Seventeen landmarks were defined on the lateral side of the individuals and digitalized by the TPS Dig program. The data matrix was submitted to a Relative Warps Analysis (RWA) and a Canonical Variables...

Two southeastern Atlantic records of the rare largetooth cookiecutter shark, Isistius plutodus (Selachii, Squaliformes, Dalatiidae)

Matthias Stehmann & Efim I. Kukuev
Two more females of the very rare pelagic dalatiid shark Isistius plutodus Garrick & Springer, 1964 are reported as the first records from the open SE Atlantic over the Walvis Ridge. These are described in detail with their morphometrics and internal meristics, and illustrated with photographs. All 10 specimens so far published after the holotype have been tracked regarding their whereabouts, with the result that only five of them (at AMS, MOVI, ZMH, ZUEC) do...

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.

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.

New record and rediscription of Uranoscopus crassiceps Alcock, 1890 (Uranoscopidae) from Oman, Arabian Sea, northwestern Indian Ocean, based on adult specimens

Ronald Fricke, Laith A. Jawad, Lubna H. Al-Kharusi & Juma M. Al-Mamry
The stargazer Uranoscopus crassiceps is recorded from off the south coast of Oman for the first time. It is rediscribed on the basis of four adult specimens. The species is characterised by a large head (head length 2.7-2.9 in standard length, 2.6-2.7 in juveniles and subadults), and a relatively long pelvic fin (pelvic-fin length 4.2 in SL, 4.5-5.2 in juveniles and subadults); lower edge preopercle with 4-7 spines; labial fimbriae well developed; both nostrils with...

A new dwarf cichlid (Perciformes) from Nigeria

Anton Lamboj
Pelvicachromis silviae, a new cichlid species, is described. It differs from congeners by unique col- oration of females and a combination of morphological characters, e.g. greater body depth, shorter snout length, greater eye orbit diameter and several other meristic parameters. The species occurs in the lower Niger River system and seems to represent within the genus a closer relative to P. subocellatus.

Relations allométriques entre la longueur du poisson et la taille de l’otolithe chez trois anguilliformes des côtes du nord de la Tunisie (Méditerranée centrale)

Balkis Sallami, Philippe Béarez & Mohamed Ben Salem
Un échantillon comprenant 36 spécimens de congre bec-fin (Gnathophis mystax), 198 de congre d’Europe (Conger conger) et 61 de murène de Méditerranée (Muraena helena) a été sélectionné parmi les captures faites à l’aide de palangres ou de chaluts sur la côte nord-est de Tunisie, entre décembre 2008 et décembre 2010. Chez les deux espèces de Congridae, G. mystax et C. conger, la masse des otolithes et la longueur du poisson sont fortement liées par une...

A new species of freshwater goby from Pohnpei, Micronesia (Gobioidei: Sicydiinae)

Brian Lynch, Philippe Keith & Frank Pezold
Lentipes caroline n. sp., a freshwater goby, is described on the basis of 21 specimens (12 males, 9 females) collected from high gradient streams on the island of Pohnpei, Federated States of Micronesia. It differs from other species of the genus by a combination of characters including a urogenital papilla lacking lateral lobes and being not retractable into a sheath-like groove, 16 pectoral fin rays, pore O generally lacking, a small head (head length 18-24%...

La contamination métallique du rouget de vase (Mullus barbatus) et de la sardinelle (Sardinella aurita) du golfe de Tunis

Rym Ennouri, Sami Mili & Lassaad Chouba
L’objectif de cette étude est de comparer les niveaux de contamination en métaux (Cd, Pb, Hg, Cu et Zn) d’une espèce benthique, le rouget de vase (Mullus barbatus), et une d’espèce pélagique, la sardinelle (Sardinella aurita) du golfe de Tunis. L’accumulation saisonnière des cinq éléments considérés a été suivie dans le muscle, le foie, les branchies, le cerveau et les gonades durant l’année 2006. Pour les deux espèces étudiées, le site préférentiel d’accumulation du Cd...

CHIPS: A database of historic fish distribution in the Seine River basin (France)

Sarah Beslagic, Marie-Christine Marinval & Jérôme Belliard
The evolution of freshwater fish distribution and long term change in the composition of fish assemblages in rivers are currently the subject of various ecological studies. These studies usually focus on a relatively short range of time, rarely exceeding the last few years. However, this interval is far too short to understand in what extent human societies impact their environment. In order to study interactions between human activities and rivers and their fish assemblages over...

Apristurus nakayai sp. nov., a new species of deepwater catshark (Chondrichthyes: Pentanchidae) from New Caledonia

Samuel P. Iglésias
A new species of deepwater catshark (Pentanchidae) is described based on a single adult male measuring 676 mm TL that was collected at a depth of 953-1022 m on the Coriolis Bank off western New Caledonia in the southwestern Pacific Ocean. Within the genus Apristurus, the species belongs to the brunneus group whose members share a higher spiral valve count and the upper labial furrows are longer than the lower furrows. Apristurus nakayai sp. nov....

First observation of intersex in barbel Barbus callensis (Valenciennes, 1842) collected in Soummam River (Algeria)

Hafsa Djoudad-Kadji, Sihem Benslimane, Christine Chevalier, Belaïd Kadji, Jean-Marie Exbrayat & Mokrane Iguer-Ouada
The presence of intersexuality in a gonochoric species Barbus callensis (Valenciennes, 1842) collected between March and October 2010 in the Soummam River, Algeria, is reported using anatomical and histological investigations. A total of 16 out of 700 dissected specimens (2.28%) were macroscopically classified as intersex, i.e. characterized by the simultaneous presence of both male and female gonads in the same individual. Three different anatomical forms were observed: (1) two gonads with an ovary and a...

Note on the terminal nerve in chimaeroid fishes (Holocephali; Chimaeridae)

Martin Licht & Peter Bartsch
William Locy in 1905 on page 63 of his morphological and embryological account “On a newly recognized nerve connected to the fore-brain of selachians” mentions the “new nerve” or “supernumerary nerve” as it was termed before that time, tentatively traced upon dissection of the brain of Chimaera monstrosa. The terminal nerve as designated by Locy has never been mentioned for holocephalan fishes since, though new interest arose more recently with description of the terminal nerve...

Shore fishes of French Polynesia

Gilles Siu, Philippe Bacchet, Giacomo Bernardi, Andrew J. Brooks, Jeremy Carlot, Romain Causse, Joachim Claudet, Eric Clua, Erwan Delrieu-Trottin, Benoit Espiau, Mireille Harmelin-Vivien, Philippe Keith, David Lecchini, Rakamaly Madi Moussa, Valeriano Parravicini, Serge Planes, Cédric Ponsonnet, John E. Randall, Pierre Sasal, Marc Taquet, Jeffrey T. Williams & René Galzin
On the occasion of the 10th Indo-Pacific Fish Conference (http://ipfc10.criobe.pf/) to be held in Tahiti in October 2017, it seemed timely to update Randall’s 1985 list of the fishes known from French Polynesia. Many studies focusing on fishes in this area have been published since 1985, but Randall’s list remains the authoritative source. Herein we present an expanded species list of 1,301 fishes now known to occur in French Polynesia and we review the expeditions...

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