734 Works

Range extension: records of Anarhichas denticulatus (Perciformes: Anarhichadidae) caught in the southern Bay of Biscay (NE Atlantic)

Cristina Rodríguez-Cabello, Guzman Díez, Montse Pérez & Rafael Bañón
Two adult specimens of Anarhichas denticulatus (Krøyer, 1845) were caught for the first time in the southern area of the Bay of Biscay (NE Atlantic). The southernmost published record of this species in the NE Atlantic was in 1986 in Irish waters (Porcupine Bank). These new records extend 1228 km to the south the known distribution range of this species and provide more information on some biological aspects.

New records of non-indigenous fishes (Perciformes and Tetraodontiformes) from the Canary Islands (north-eastern Atlantic)

Raül Triay-Portella, José G. Pajuelo, Pablo Manent, Fernando Espino, Raquel Ruiz-Díaz, José M. Lorenzo & José A. González
We report the collection of specimens of Paranthias furcifer (Serranidae), Abudefduf hoefleri (Pomacentridae), Acanthurus bahianus, A. chirurgus, A. coeruleus (Acanthuridae), and Cantherhines pullus (Monacanthidae) as first records for these tropical and subtropical species from the Canary Islands (north-eastern Atlantic). Most of these records coincide with the presence of oil platforms towards and within the Port of Las Palmas. Regarding the management of the arrival of warm-affinity fish species, it would be necessary to implement control...

Guide for the identification of archaeological sea sturgeon (Acipenser sturio and A. oxyrinchus) remains

Els Thieren, Wim Wouters & Wim Van Neer
Remains of sturgeons (Acipenser sturio and A. oxyrinchus) are regularly found on western European archaeological sites. The identification of these isolated bones should ideally be carried out with the aid of a comparative skeletal collection, consisting of modern specimens of different sizes. Because such reference material of sea sturgeons (A. sturio and A. oxyrinchus) is relatively rare and dispersed over many different museums and institutes, a practical guide is presented here as an aid to...

Study of the ichthyofauna diet in the Ichkeul Lake (Tunisia)

Moez Shaiek, Mohamed-Salah Romdhane & François Le Loc'h
In order to define the structure of trophic network of Ichkeul Lake in Tunisia, diet of main teleost fish species was determined during two seasons, wet and dry. A total of 491 stomachs from 16 teleost species was analyzed. The analysis revealed spatial variability (East under marine influence and West with more continental effect) and temporal one (wet and dry seasons). Based on stomach contents, nine trophic groups were revealed, including eight monospecific groups. The...

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...

Régime alimentaire de Thysochromis ansorgii (Cichlidae) dans la forêt des marais Tanoé-Ehy (Côte d’Ivoire)

Yao Aristide Konan, Siaka Ouattara & Tidiani Koné
Le régime alimentaire de Thysochromis ansorgii (Boulenger, 1901) a été étudié dans la forêt des marais Tanoé-Ehy (FMTE, Côte d’Ivoire) en fonction de la taille des poissons et des saisons hydrologiques. Au total, 149 poissons ont été capturés mensuellement à l’aide de filets verveux et de filets maillants entre mars 2012 et février 2013. La longueur standard et le poids frais des spécimens variaient respectivement entre 45 mm et 110 mm LS et entre 3,3...

New and rare records of teleost fishes from the Cape Verde Islands (eastern-central Atlantic Ocean)

José A. González, Albertino Martins, José I. Santana, Raül Triay-Portella, Carlos Monteiro, Verónica García-Martín, Sebastián Jiménez, Gustavo González-Lorenzo, José G. Pajuelo, José M. Lorenzo & Manuel Biscoito
As a result of six exploratory surveys and several opportunistic catches in the Cape Verde Islands from a few metres to about 1000 m of depth, a list of 66 species of teleost fishes is given, six of which are first records from the archipelago: Gnathophis mystax (Congridae), Nezumia africana, Nezumia duodecim (Macrou- ridae), Ectreposebastes imus (Scorpaenidae), Paraliparis sp. (Liparidae) and Lappanella fasciata (Labridae). Additionally, data on six poorly-known species is also given: Myroconger compressus...

On the presence of Petromyzon marinus in Oued Moulouya (Morocco)

M. Clavero, B. Adrados, J. Calzada & M. Jácome-Flores
The sea lamprey (Petromyzon marinus Linnaeus, 1758) has a vast distribution area, including both shores of the Northern Atlantic and the Mediterranean Sea. It is commonly assumed to be present in Morocco, but the only specific records of the sea lamprey in the country come from the first half of the 20th and are exclusive to the Atlantic coast. Here we report the presence of adult sea lampreys in Oued Moulouya, the largest of the...

First record of a leucistic Narcine bancrofti (Elasmobranchii, Narcinidae) from the northern Gulf of Mexico

Christian M. Jones, Eric R. Hoffmayer & Robin P. Gropp
Herein, we report on the first record of leucism in Narcine bancrofti (Griffith & Smith, 1834). The leucistic ray, an immature male, was captured with 21 conspecifics exhibiting normal coloration for the species. Nineteen of these animals, including the leucistic ray, were retained for further examination. Twelve morphometrics were measured on each ray and regressed against total length to determine whether additional morphological abnormalities were present. In each case, the leucistic ray exhibited similar relative...

First record of Butis gymnopomus (Eleotridae) in Sri Lankan waters

Sudesh Batuwita, Sampath Udugampala & Udeni Edirisinghe
A new record of the Gudgeon, Butis gymnopomus (Bleeker, 1853), was reported during an ichthyological survey in Sri Lanka. In Sri Lanka, this species was previously confused with B. butis. B. gymnopomus is easily distinguished from all reported congeners from Sri Lanka by the combination of the following characters: snout and interorbital region naked, absence of axillary scales, presence of prominent lower jaw, absence of bony crests on snout, lacking black spot on pectoral fin...

A new record of the barred knifejaw Oplegnathus fasciatus (Perciformes, Oplegnathidae), a Pacific fish, in the Adriatic Sea (Urinj, Croatia)

Jakov Dulčić, Branko Dragičević, Nedo Vrgoč, Igor Isajlović, Željana Đođo & Nenad Antolović
On 23 November 2015, one specimen of Oplegnathus fasciatus was caught by a trap designed for catching Nephrops norvegicus at around one Nm off the Urinj (Rijeka Bay, Croatian coast, northern Adriatic) (45º17’00.40”N; 14º30’35,95'”E). This is the first record in Croatian part of the Adriatic Sea.

DNA barcoding supports the presence of the cryptic ocellated eagle ray, Aetobatus ocellatus (Myliobatidae), in French Polynesia, South Pacific

Cécile Berthe, Johann Mourier, David Lecchini, Jodie L. Rummer, Daniel Y. Sellos & Samuel P. Iglésias
The Aetobatus species present in French Polynesian Islands is identified as A. ocellatus, the ocellated eagle ray. This finding is based on DNA barcoding and supports the recent splitting of Aetobatus narinari, the spotted eagle ray, into two distinct species. Ray samples were collected from the Tuamotu and the Society archipelagos in 2012. All samples have a similar haplotype, suggesting they are conspecific and are also genetically close to specimens collected from Australia and New...

Genetic integrity of the European grayling (Thymallus thymallus) populations within the Vienne River drainage basin after five decades of stockings

Henri Persat, Karin Mattersdorfer, Stéphanie Charlat, Tamara Schenekar & Steven Weiss
The upper Vienne River is the westernmost drainage in the natural distribution of European grayling Thymallus thymallus (Linnaeus, 1758). The grayling extension across this sub-basin of the Loire catchment has been dramatically reduced through habitat degradation, which began in the 19th century with the construction of milldams and eventually large hydroelectric dams, which flooded former grayling habitat (i.e. fast flowing waters) under increasingly larger reservoirs. Throughout the 20th century, habitat degradation, fragmentation and pollution have...

Is adult translocation a credible way to accelerate the recolonization process of Chondrostoma nasus in a rehabilitated river?

Michaël Ovidio, Céline Hanzen, Vincent Gennotte, Johan Michaux, Jean-Philippe Benitez & Arnaud Dierckx
The decline of the patrimonial rheophilic nase, Chondrostoma nasus (Linnaeus, 1758) populations was mainly caused by construction of dams and hydroelectric power-plants, together with the straightening and artificialization of the river banks and water pollution. In this study, we tested the hypothesis whether the translocation of few adult nase individuals from a river stretch to another upstream may be a credible way to accelerate the recolonization process of the species in the Amblève River (Southern...

Growth of the oblique-banded grouper (Epinephelus radiatus) on the coasts of Reunion Island (SW Indian Ocean)

Kélig Mahé, Khalef Rabhi, Elise Bellamy, Romain Elleboode, Yoann Aumond, Jérôme Huet, Pierre Cresson & David Roos
The oblique-banded grouper, Epinephelus radiatus (Day, 1968), occurred within the whole Indo- West Pacific where it is harvested by small-scale coastal fisheries. The aim of this study was to estimate the growth of this species at Reunion Island (South-West Indian Ocean) since no study investigated this topic so far. Fifty-seven individuals were sampled in the landings of the French local artisanal fisheries from March 2014 to March 2015. The relationships between two types of body...

Confirmation of functional hermaphroditism in six grouper species (Epinephelidae: Epinephelinae) from the Gulf of Mexico

Thierry Brulé, Doralice Caballero-Arango, Ximena Renan & Teresa Colás-Marrufo
Diagnosing hermaphroditism in teleost fish requires careful assessment and is particularly challeng- ing in groupers. Established, reliable criteria to detect functional protogynous hermaphroditism were used to col- lect data on sexual pattern in six minimally studied grouper populations on the continental shelf of the Yucatan Peninsula. Individuals in the process of changing sex (transitional individuals), considered strongly indicative of protogyny, were observed. Functional protogynous hermaphroditism was confirmed for Epinephelus morio (Valenciennes, 1828) and Mycteroperca venenosa...

Étude comparative des crustacés isopodes et copépodes ectoparasites de poissons marins algériens et marocains

Zouhir Ramdane, Mourad Abdelkrim Bensouilah & Jean-Paul Trilles
Les crustacés ectoparasites de poissons marins des côtes nord africaines de la Méditerranée ont fait l’objet de plusieurs travaux ; ceux-ci ont en particulier concerné les côtes tunisiennes, algériennes et marocaines. nos travaux de recherche ont consisté à comparer la richesse spécifique correspondante de ces deux dernières régions. Plusieurs espèces rattachées à diverses familles y sont représentées. La spécificité parasitaire est variée et les indices parasitologiques révèlent des taux d’infestation globalement faibles. Plusieurs espèces sont...

Lessepsian rabbitfish Siganus luridus reached the French Mediterranean coasts

Boris Daniel, Serge Piro, Eric Charbonnel, Patrice Francour & Yves Letourneur
Two Siganus luridus (Rüppell, 1829) were caught in Sausset-les-Pins, near Marseille, southern France: the first the 9th of July, 2008 and the second one, the 27th of September. This constitutes a considerable extension of the distribution range of this Lessepsian species within the Mediterranean, as its northern- and westernmost known populations were located in the Sicily Strait and in Sicily. The origin of these fish is not clearly elucidated yet, although it could be linked...

Book review – Daniel Pauly. Un océan de combats, by David Grémillet

Fabrice Teletchea

First Pacific record of Priolepis goldshmidtae (Gobiidae), previously regarded as a Red Sea endemic

Kyoji Fujiwara, Toshiyuki Suzuki & Hiroyuki Motomura
A single specimen (17.0 mm in standard length) of Priolepis goldshmidtae Goren & Baranes, 1995, collected at 120 m depth off Okinawa Island, southern Japan, represents the first record of the species from the Pacific Ocean. The species was previously only known from the original description, and being regarded as an endemic Red Sea species.

New distributional records of three deepwater cardinalfishes Epigonus angustifrons, E. denticulatus, and E. exodon (Perciformes: Epigonidae) in the South Indian Ocean

Makoto Okamoto, Wei-Jen Chen & Hiroyuki Motomura
Two specimens (189.7-210.3 mm in standard length: SL) of Epigonus angustifrons Abramov & Manilo, 1987 and two specimens (120.2-138.6 mm SL) of E. denticulatus Dieuzeide, 1950 (Epigonidae) were collected from the St. Paul Seamount, central South Indian Ocean. Also, a single specimen (131.0 mm SL) of E. exodon Okamoto & Motomura, 2012 was collected off Mayotte, Comoros Archipelago, western South Indian Ocean. These specimens represent the first records of the three species from the two...

Nombre, type et répartition des arêtes de filets de carpes communes (Cyprinus carpio, L.) originaires de six régions françaises de production

Dominique Vallod & Florent Arthaud
Le nombre total d’arêtes intermusculaires, le nombre d’arêtes fourchues et non fourchues ainsi que la position ventrale ou dorsale de celles-ci ont été déterminés par comptage sur des radiographies de filets de carpes communes issues de 6 régions piscicoles françaises. Il s’agissait de vérifier si l’origine géographique des carpes avait un effet sur ces différents paramètres. Les résultats confirment un effet région sur le nombre d’arêtes fourchues en position ventrale, par rapport au nombre total...

New record of a surgeonfish from Oman with notes on some uncommon rays

Philippe Béarez, Sophie Kerneur & Zouhaira Gabsi

Book review – Hippocampes, une famille d’excentriques, by P. Louisy

Vincent Haÿ

Seasonal-dependent effect of endosulfan exposure on gonadotropins of Cichlasoma dimerus (Perciformes, Cichlidae)

Rodrigo Da Cuña, Matias Pandolfi, Yanina Piazza, María C. Maggese, Paula Vissio & Fabiana Lo Nostro
Adult C. dimerus were exposed for 2 months to endosulfan (ES) during summer or winter. Pituitaries were processed for Western blot (WB) or immunohistochemistry (IHQ) to evaluate LH and FSH content. WB showed a decrease in the pituitary ir-FSH content and an increase in that of LH in exposed fish during summer, correlating with the morphometric analysis of ir-cells. In winter the opposite tendencies were observed in pituitary content. This supports the role of ES...

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