621 Works

Invasive Carassius spp. in the Tiber River basin (Umbria, Central Italy): population status and possible interactions with native fish species

Antonella Carosi, Lucia Ghetti & Massimo Lorenzoni
The purpose of the research was to analyse the distribution, abundance and growth of Carassius spp., a taxon which includes non-native species introduced into the water bodies of the Umbrian portion of the Tiber River basin during the late 1980s. Additionally, the study estimated the relative weight for Barbus tyberinus, Squalius lucumonis and Sarmarutilus rubilio to investigate the presence of competitive interactions between Carassius spp. and these native species that characterize the middle and lowland...

Osteometry and size reconstruction of the Indian and Pacific Oceans’ Euthynnus species, E. affinis and E. lineatus (Scombridae)

Anaïs Marrast & Philippe Béarez
Two neritic species of scombrids (Euthynnus affinis and E. lineatus) from the Indo-Pacific and the Eastern Pacific are today classed as commercially important. They have long been exploited and are common finds on coastal archaeological sites. Size reconstruction from isolated bones is interesting for both biologists and archaeologists. In archaeology, these studies make it possible to highlight fishing strategies. Therefore, we built an osteometric model for these two species, using 31 specimens of E. affinis (FL: 274 mm...

Threatened fish: Lentipes rubrofasciatus Maugé, Marquet & Laboute, 1992 (Gobiidae)

Philippe Keith & Marion Mennesson

First record of the East Asian fourfinger threadfin, Eleutheronema rhadinum (Jordan & Evermann, 1902), from Zhenjiang, China

Liqiang Zhong, Jiang Wang, Minghua Wang, Daming Li, Shengkai Tang & Xiaohui Chen
A single specimen (219.6 mm in standard length) of East Asian fourfinger threadfin (Perciformes: Polynemidae), Eleutheronema rhadinum (Jordan & Evermann, 1902), was captured with gillnet in Yangtze River estuary near Yangzhong County, Zhenjiang, China, on 30 October 2018. It is the first record of E. rhadinum in freshwaters of the Yangtze River Estuary.

First record of Phoxinus csikii Hankó, 1922 (Actinopterygii, Cypriniformes) in France

Gaël P.J. Denys & Sébastien Manne
A molecular identification via DNA barcoding (COI marker, 651 bp) was done on a minnow caught in the Rupt de Mad stream at Essey-et-Maizerais (Rhine/Moselle catchment). Accordingly, the specimen belongs to the recently revalidated Phoxinus csikii Hankó, 1922. It is the first record of this species in France, and the fourth minnow species known in this country.

The influence of the Rupununi portal on distribution of freshwater fish in the Rupununi district, Guyana

Lesley S. de Souza, Jonathan W. Armbruster & David C. Werneke
The Guiana Shield region in northern South America has a rich and diverse ichthyofauna with a high degree of endemism. The fauna of this region is shaped not only by the geology of the area but climatic events as well. The Rupununi district of southwestern Guyana is an area where seasonal rainfall floods a vast savanna. During the rainy season, this inundated savanna allows a connection between the Amazon and Essequibo Rivers that provides the...

The status of Pseudolabrus psittaculus (Richardson) and use of the name Pseudolabrus rubicundus (Macleay) for this species

Barry C. Russell & Anthony C. Gill
In an annotated checklist of the family Labridae, Parenti and Randall (2000) noted that Pseudolabrus psittaculus (Richardson, 1840), described from Tasmania, is preoccupied by Labrus psittaculus Lacepède, 1801 [=Halichoeres bivittatus (Bloch 1791)], a Caribbean species, and proposed the next available name, Labrichthys rubicunda Macleay, 1881, be used for this species. Based on its purported type-locality, and in the absence of the type-specimen, Pseudolabrus rubicundus was rejected as a nomen dubium by Allen et al. (2006)...

Maximum size of Atlantic mackerel (Scomber scombrus) and Atlantic chub mackerel (Scomber colias) in the Northeast Atlantic

María Rosario Navarro, Begoña Villamor, Sigmund Myklevoll, Juan Gil, Pablo Abaunza & Jesús Canoura
Maximum size records of Atlantic mackerel caught in different areas of the northeast Atlantic are presented along with the maximum size of Atlantic chub mackerel from the Gulf of Cadiz, Spain. One specimen of Atlantic mackerel (Scomber scombrus Linnaeus, 1758) was caught in the south of the Bay of Biscay in 2009. Its total length of 59 cm and weight of 1.9 kg are the maximum length and weight recorded for this species in this...

Phylogenetic position and notes on the natural history of Pimelabditus moli Parisi & Lundberg, 2009 (Teleostei: Siluriformes), a recently discovered pimelodid catfish from the Maroni River basin

John G. Lundberg, Raphaël Covain, John P. Sullivan & Sonia Fisch-Muller
The recent description of a distinctive new pimelodid catfish, Pimelabditus moli Parisi {&} Lundberg, 2009, from the Maroni River basin of Suriname and French Guiana, added an unresolved taxon to the family. Here we include P. moli in ongoing molecular and morphological phylogenetic studies of the Pimelodidae. We sequenced > 7.5 KB of aligned bases from the nuclear rag1 and rag2 genes and the mitochondrial mt-rnr1, mt-rnr2 and mt-cyb genes. Results provide strong support for...

Review of the round herrings of the genus Etrumeus (Clupeidae : Dussumieriinae) of Africa, with descriptions of two new species

Joseph D. Dibattista, John E. Randall & Brian W. Bowen
A review of the round herrings of the genus Etrumeus from Africa is presented based on morphological and molecular evidence. Etrumeus golanii is described from the northern Red Sea (and also an immigrant to the Mediterranean), and Etrumeus wongratanai is described from the east coast of Africa, from Durban to northeastern Somalia. The species described herein are characterized by reciprocally monophyletic mitochondrial DNA cytochrome b sequences (d = 3.30%), indicating a long period of separation...

Foreword – Fishes of the Guianas

Raphaël Covain & Sonia Fisch-Muller

Body length estimation of the European eel Anguilla anguilla on the basis of isolated skeletal elements

Els Thieren, Wim Wouters, Wim Van Neer & Anton Ervynck
Using a large series of dry skeletons of modern European eel Anguilla anguilla (Linnaeus, 1758) from Belgium and the Netherlands, the relationship between fish length and individual bone measurements is investigated. The aim of the study is to provide adequate regression equations between both parameters. This methodology is relevant for both palaeoecological and ecological researches since isolated skeletal elements survive in large numbers on archaeological sites and in the stomach contents, faeces or regurgitations of...

Comments on a finding of Mobula mobular (Mobulidae) in the Adriatic Sea

Giambattista Bello, Lovrenc Lipej & Jakov Dulčić
A recent publication described the finding of a specimen of Mobula mobular in the Adriatic Sea and stated that it represented “the first documented occurrence” of this fish in this sea (Scacco et al., 2009). However, the presence of M. mobular in the Adriatic Sea was already well-known. A list of the many Adriatic records and reports on this chondrichthyan species is given.

Expansion of the invasive Pseudorasbora parva (Cyprinidae) in the Iberian Peninsula : first record in the Guadiana River basin

Enric Aparicio, Borja Peris, Luis Torrijos, José Prenda, Ángel Nieva & Silvia Perea
Pseudorasbora parva (Temminck & Schlegel, 1846) has become an invasive fish in many parts of Europe. In the Iberian Peninsula, until now, P. parva has been recorded only from the Ebro and Ter Rivers, NE Spain. The first record in the Guadiana River basin (SW Spain) of P. parva is reported. The origin of the population is presumably an accidental introduction from a local fish farm. P. parva represents a new threat to the native...

Range extension and re-description of Synagrops argyreus (Perciformes, Acropomatidae)

Artem M. Prokofiev & Werner Schwarzhans
Since its first description by Gilbert and Cramer (1897) (originally as Melanostoma argyreum), Synagrops argyreus was considered to be endemic to Hawaii. New data from the southern Indian Ocean in the Madagascar Channel and the Coral and Tasman Seas reveal a considerable wider geographical distribution of the species, adding to the growing number of pseudoceanic species with a wide distribution pattern in the Indo-Pacific.

Eight new species of Rainbowfishes (Melanotaeniidae) from the Birds Head Region, West Papua, Indonesia

Media Fitri Isma Nugraha , Kadarusman, Nicolas Hubert, Jean-Christophe Avarre, Renny K. Hadiaty, Jacques Slembouck, Odang Carman, Sudarto, Ran Ogistira & Laurent Pouyaud
Eight new species of Rainbowfishes are described from the Birds Head region by combining a cyto- chrome oxydase I gene (COI) phylogeny, 12 microsatellite loci and diagnostic morphological characters. The new species Melanotaenia klasioensis, M. longispina and M. susii belong to the “Central Ayamaru Plateau” cluster in the COI phylogeny and are genetically allied to M. ajamaruensis, M. boesemani, M. ericrobertsi and M. fasinensis. A Factorial Component Analysis made on the multilocus microsatellite genotypes reveals...

First record of the chocolate shrimp-goby (Gobiidae: Cryptocentrus malindiensis) from Réunion Island with a brief description of its natural habitat

Mathieu Pinault, Ronald Fricke, Julien Wickel, Cédric Péneau & Jean-Pascal Quod
This note describes the first record of the chocolate shrimp-goby Cryptocentrus malindiensis (Smith, 1959) from Réunion Island, based on photographic evidence. A specimen of an estimated total length of 7 cm was photographed at 9:00 AM on 8 November 2012, at a water temperature of 26°C and depth of 8 m, on a prehistoric lava flow of the Piton de la Fournaise volcano. The habitat included shallow-water sea cracks and rocky overhangs, near basaltic muddy...

Effect of spawning time on egg quality, larval morphometrics and survival of Northern pike Esox lucius

Awatef Trabelsi, Jean-Noël Gardeur, Habib Ayadi & Pascal Fontaine
This study deals with the evaluation of egg and larval qualities for the Northern pike Esox lucius Linnaeus, 1758 according to two dates during a spawning season, on March 16 (ST1) and 23 (ST2). A higher hatching rate (97% for ST1 vs 80% for ST2) associated to a stronger resistance to starvation (21.0 days for ST1 vs 19.1 days for ST2) and a better survival rate (72% for ST1 vs 59% for ST2) were found...

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...

Régime alimentaire de la dorade coryphène Coryphaena hippurus (Coryphaenidae) des côtes tunisiennes

Amina Besbes Benseddik, Raouf Besbes, Othman Jarboui & Ridha M'Rabet
Les contenus stomacaux de 178 individus de Coryphaena hippurus, de longueur à la fourche (LF) comprise entre 18 et 82 cm et de poids individuel compris entre 71 et 5 880 g, pêchés sur les côtes tunisiennes entre juillet et décembre 2010, ont été analysés. Cette espèce pélagique, prédatrice et opportuniste, se nourrit de téléostéens comme proies préférentielles et de crustacés comme proies secondaires ou accessoires. Les juvéniles (< 25 cm LF) s’alimentent d’espèces exclusivement...

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.

A short note on the terminal nerve in Callorhinchus milii (Callorhinchidae, Holocephali, Chondrichthyes)

Martin Licht & Peter Bartsch
Recently, the terminal nerve has been described for holocephalan fishes in more detail. But this nerve was described only in two species (Hydrolagus colliei and Chimaera monstrosa), which represent just the most derived family (Chimaeridae) of extant holocephalans. This study completes the former account and for the first time describes the nervus teminalis in a late embryonic elephant shark (Callorhinchus milii) on the basis of a serially sectioned specimen. The course of the terminal nerve...

Seminiferous tubule number and surface: validation of objective parameters to estimate reproduction activity of male European anchovy (Engraulis encrasicolus, L.)

Amina Rahmani, Keltoum Ichalal & Mokrane Iguer-Ouada
The present study aims to establish new quantitative parameters to objectively study reproductive activity in the male anchovy, Engraulis encrasicolus. The experimental design measured, at a microscopic level, the number (STN) and area (STA) of the seminiferous tubules during the reproductive season. This was conducted in relation to gonadosomatic index (GSI) and the five-degree macroscopic standard maturity staging of Brown-Petersen et al. (2011): immature, developing, spawning capable, regressing, regenerating. Fresh samples with a total of...

A histological study of the lingual molariform teeth in Hyperopisus bebe (Mormyridae; Osteoglossomorpha)

François J. Meunier, Damien Germain & Olga Otero
The molariform teeth of the mormyrid fish Hyperopisus bebe display a cone of orthodentine overlaid at their tip by a thick layer of enameloid (= acrodine). The teeth are fixed on a cellular bony tissue. This organization is classical for an actinopterygian and fits with the pattern classically observed in other osteoglossiform fishes. The presence of plicidentine and the hyoid tooth and tooth-plate morphology of this species may be related with crushing feeding habits.

Some histological data of bone and teeth in the Rift Eelpout, Thermarces cerberus (Zoarcidae)

François J. Meunier & Isabelle Arnulf
The rift eelpout, Thermarces cerberus (Zoarcidae), is a deep-sea marine fish that inhabits the vicinity of the hydrothermal vents of the East Pacific Rise. Its skeleton is mineralized to a normal degree and is constituted of acellular bone as the majority of perciforms, to which it belongs. T. cerberus feeds on amphipod crustaceans and gastropods, and has thin sharp teeth constituted of an orthodentine cone with a thin external apical layer of enameloid. The histological...

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