Manuscrits sous presse

  • Deep-water fish species from La Réunion observed during an inventory of the fauna at 1,000 m depth, including first and confirmed records  

    • FRICKE Ronald
    • DURVILLE Patrick
    • POTIN Gaël
    • MULOCHAU Thierry
    Date d'acceptation: 07 mars 2024
    Statut: Sous presse/In press


    Five species of marine fishes are observed from La Réunion for the first time, and the occurrence of two species is confirmed, observed during a faunal inventory under the OBJECTIF 1000 program. Marine fishes were observed and collected off La Réunion Island (France) with bottom longlines and traps in the upper bathyal zone at 1,000 m depth during a faunal inventory under the OBJECTIF 1000 program. Five species represent first records for the island: Etmopterus granulosus (Günther 1880) (Etmopteridae), Nemichthys scolopaceus Richardson 1848 (Nemichthyidae), Eustomias trewavasae Norman 1930 (Stomiidae), Coelorinchus trunovi Iwamoto & Anderson 1994 (Macrouridae), and Lepidion natalensis Gilchrist 1922 (Moridae). Two species represent confirmed records for the island: Hexanchus griseus (Bonnaterre 1788) (Hexanchidae), Centroscymnus owstonii Garman 1906 (Somniosidae). New depth records are provided for Coelorinchus trunovi Iwamoto & Anderson 1994 and Lepidion natalensis Gilchrist 1922 (1,000 m depth). More thorough sampling efforts would probably result in additional species never before observed in La Réunion.

  • Stenogobius (Teleostei: Gobioidei, Oxudercidae) from Indonesia

    • Causse Romain
    • Hadi Dahruddin
    • Clara Lord
    • Marion I. Mennesson
    • Sopian Sauri
    • Frédéric Busson
    • Gino Limmon
    • Daisy Wowor
    • Nicolas Hubert
    • Philippe Keith
    Date d'acceptation: 07 mars 2024
    Statut: Sous presse/In press


    Freshwater habitats in Indo-Pacific tropical islands are mainly inhabited by amphidromous fish, which display a marine larval phase while the rest of their life cycle takes place in rivers. Gobiiformes are the most diversified fish component in these ecosystems. In this study, we focused on the status of the widespread Stenogobius genus (Gobioidei). This genus is distributed from the Indian Ocean to French Polynesia. Recently, a first revision of Stenogobius was undertaken leading to the redescription of Stenogobius genivittatus (Valenciennes, 1837) and the placement of 12 species names as synonyms of Stenogobius genivittatus. This paper focuses on the status of nine Stenogobius species supposedly existing in Indonesia, a country well known as one of the freshwater hotspot of biodiversity. The present study is based on 95 specimens, and includes morpho-meristic data and partial mitochondrial COI sequences. Our results show that, at least, four species occur in Indonesia, including the widespread species, Stenogobius genivittatus.

  • Historical records of the Atlantic pomfret, Brama brama (Bonnaterre, 1788) (Teleostei: Bramidae, Braminae), the northernmost records in the Mediterranean Sea and the variability of species adult morphology

    • Ahnelt Harald
    • Nocita Annamaria
    • Jakov Dulčić
    Date d'acceptation: 05 mars 2024
    Statut: Sous presse/In press


    Brama brama, the Atlantic Pomfret or Ray’s Bream, is uncommon in the Mediterranean Sea and very rare in the Adriatic area. We report two historical records of this species from the northern Adriatic Sea, which represent the northernmost records in the Mediterranean. The detailed morphological data of these specimens and their comparison with available data from specimens from the Mediterranean Sea reveal the variability of the morphology of adult specimens.

  • First DNA barcodes of two endemic fishes from the Maros karst region, South Sulawesi, Indonesia

    • Hidayani Aliah
    • Tassaka Asmi
    • Kadir Nadiarti
    • Yasir Inayah
    • Jompa Jamaluddin
    • Umar, Widyastuti
    • Litaay Magdalena
    • Parenrengi Andi
    • Ndobe Samliok
    • Gani Abdul
    • Putri Amanda
    • Iqram Muhammad
    • Omar Sharifuddin
    • Moore Abigail
    Date d'acceptation: 04 mars 2024
    Statut: Sous presse/In press


    Sulawesi is the largest island in the Wallacea biodiversity hotspot. However, data on the ichthyofauna of this island are incomplete, and several known species do not have reference DNA barcodes in public databases; these are necessary, inter alia, to enable non-invasive environmental DNA detection. As a contribution ttowards filling this gap, specimens of two species endemic to South Sulawesi were collected from the Maros karst region in March 2023: Dermogenys orientalis and Lagusia micracanthus. Right pectoral fins were preserved in 96% ethanol for DNA barcoding before preservation of three voucher specimens from each species at Hasanuddin University. DNA extraction and PCR (COI mitochondrial genetic marker) was followed by Sanger sequencing. Data analysis was conducted in MEGA 11. These first barcodes were deposited in GenBank: Dermogenys orientalis accessions OR829330- OR829332 and Lagusia micracanthus accessions OR829336- OR829336. Phylogenetic trees were constructed using homologous sequences obtained through the NCBI GenBank BLASTn routine.

  • New Insights on the Ecology and Biology of the Rare Oxynotus paradoxus from Recent Records

    • Graça Aranha, Sofia
    • Dias, Ester
    • Marsili, Tiago
    • Pires da Rocha, Pedro
    • Teodósio, Alexandra
    • Figueiredo, Ivone
    Date d'acceptation: 27 février 2024
    Statut: Sous presse/In press


    Oxynotus paradoxus has been recorded in the Eastern Atlantic Ocean, from Senegal to Scotland, at depths from 92 to 1044 m. Despite being present in various Portuguese occurrence checklists, only two scientific studies reported O. paradoxus in Portugal, one off the mainland and the other off the Azores islands. During fishing campaigns onboard a commercial bottom trawler targeting crustaceans, four O. paradoxus specimens were bycaught at the SW of Portugal (SW Iberian Peninsula) at depths varying  between 742 and 1238 m. The latter is a new maximum depth record for this species, which was achieved by an adult female with a total length of 650 mm. Through this adult female, we provide new insights into the ecology and biology of this species.  Morphometric measurements were presented and compared with past studies revealing some intra-specific variability. The low hepato-, gonadosomatic and ecophysiological indices suggest that the adult female was not feeding for some time prior to collection. This study contributes to increase the knowledge of this poorly known species, using an individual approach, which is paramount when targeting rare species.

  • Distributional range extensions of Onigocia grandisquama (Platycephalidae) and Soleichthys siammakuti (Soleidae) in the South China Sea

    • MATSUNUMA Mizuki
    • SEAH Ying Giat
    • SHEIKH ABDUL KADIR Siti Tafzilmeriam
    • MOTOMURA Hiroyuki
    Date d'acceptation: 13 février 2024
    Statut: Sous presse/In press


    A single specimen of Onigocia grandisquama (Regan, 1938) (Platycephalidae) from Kuantan, Pahang, Malaysia (east coast of Peninsular Malaysia) represents the first record of the species from Malaysia, previous records from the South China Sea having been restricted to Thailand. Four specimens of Soleichthys siammakuti Wongratana, 1975 (Soleidae) from Kuantan and Kota Kinabalu (Borneo), Malaysia and Negros (the Philippines) represent the first specimen-supported records of the species from those regions, the species having previously been collected only from the type locality (northern Gulf of Thailand).

  • The Eastern Pacific black ghostshark, Hydrolagus melanophasma (Chimaeridae): New data on its presence and biology along the Peruvian coast.

    • ROQUE-SÁNCHEZ Máximo
    • CAMPOS-LEÓN Sarita
    • SOTIL Giovanna
    • BÉAREZ Philippe
    Date d'acceptation: 26 janvier 2024
    Statut: Sous presse/In press


    This study formally presents the occurrence of Hydrolagus melanophasma James, Ebert, Long, Didier 2009 off the south-central coast of Peru as a bycatch in the Patagonian toothfish (Dissostichus eleginoides Smitt 1898) fishery. Data on morphology, reproductive condition and genetic analysis based on specimens caught in central and southern Peru are provided. One of the main diagnostic characters for the identification of H. melanophasma is the long and uniform height of its second dorsal fin, differentiating it from Hydrolagus macrophthalmus de Buen 1959, which has a deep notch in the centre of its second dorsal fin and a conspicuous white colouration along the fin’s base, originating from the midpoint to the posterior end. Phylogenetic analysis based on the mitochondrial cytochrome oxidase subunit 1 (COI) and 16S rRNA genes clearly discriminate H. melanophasma from its congeners.

  • Four new goatfishes (Upeneus, Mullidae, Mulliformes) from the Asian Indo-Pacific with a list of valid goatfish species and remarks on goatfish diversity

    • Uiblein Franz
    • Williams Jeff T.
    • Hoang Tuan A.
    • Rajan P. Thomas
    • Bailly Nicolas
    Date d'acceptation: 27 octobre 2023
    Statut: Sous presse/In press


    Based on a large comparative data set available from recent studies of goatfish species of the genus Upeneus (Mullidae, Mulliformes) with seven spines in the first dorsal fin, four new species from the area of the Asian Indo-Pacific are described. Initial search for and discovery of the new species was greatly assisted by the recognition of several subgroups within two rather large taxonomic species groups, the pori and the japonicus groups, each consisting of nine previously described species. Two of the new species, U. aurorae n. sp. from Luzon, Philippines, and U. huan n. sp. from Central Vietnam (NW Pacific), are characterized by relatively low gill-raker counts, while U. brevignathus n. sp. from off SE Yemen (NW Indian Ocean), has high gill-raker counts. All three species share the typical characteristics of the pori-species groups such as height of first dorsal fin decreasing proportionally, pectoral fins shorter or of similar length as pelvic fins, oblique bars on lower caudal-fin lobe present and white, rose-whitish or pale-red barbels in fresh or live fish. The fourth new species, U. andamanensis n. sp. from the Andaman Islands (NE Indian Ocean), resembles most U. guttatus and two other species of the japonicus-species group, which all belong to a subgroup characterized by the first dorsal fin being relatively high with subsequent fin elements decreasing disproportionally in height. While no fresh color information is available for U. brevignathus n. sp. and U. andamanensis n. sp., each of them can be clearly distinguished morphologically and by preserved color from the most similar species. A list of all valid goatfish species is included, with English common names and remarks to clarify validity judgments. The results are discussed with respect to the usefulness of using taxonomic species groupings for facilitating detection of new species and other purposes in continuing studies of the species diversity of goatfishes.

  • Dapalis pauciserratus, a new species of freshwater glassfishes (Teleostei, Ambassidae) from the Lower Oligocene of the Central Paratethys

    • Ahnelt Harald
    • Bradić-Milinović Katarina
    • Schwarzhans Werner
    Date d'acceptation: 23 janvier 2024
    Statut: Sous presse/In press


    Abstract. – We describe a new species of the fossil perciform genus Dapalis (Ambassidae), Dapalis pauciserratus n. sp., based on two articulated skeletons with otoliths in situ from the lower Oligocene of Raljin/Strelac, Babušnica basin, Southern Serbia. This species differs from congeners in the combination of following characters: (i) body elongate, fusiform; (ii) head triangular in shape; (iii) supraoccipital crest distinct; (iv) head without serrations except two large spine-like serrations on the corner of the preopercle; (v) premaxilla with a relatively narrow postmaxillary process located in the distal half; (vi) spines of the first and second dorsal fins, the anal fin and the pelvic fin strong but not massive; (vii) first spine of first dorsal fin long (42% of length of second spine); (viii) otoliths elongate (length : height = 1.4) with a narrow and elongate ostium, indistinct antirostrum, shallow excisura and an asymmetric and prominent rostrum.

  • The complete mitochondrial genome of a new invader fish in France, the pink salmon Oncorhynchus gorbuscha (Walbaum, 1792) (Teleostei, Salmonidae)

    • Denys Gaël
    • Josset Quentin
    • Verde Ferraira Amélie
    • Dettai Agnès
    Date d'acceptation: 23 janvier 2024
    Statut: Sous presse/In press


    The pink salmon Oncorhynchus gorbuscha (Teleostei, Salmonidae) is a North Pacific species. It arrived in Northern Europe through freshwater migration each odd year since 2017, creating management issues. In this study we sequenced a complete mitochondrial genome for a pink salmon caught in the Bresle River (France) with a museum voucher . The sequence is 16 695 bp in length and is similar to previous mitogenomes published within this genus. Length heteroplasmy on the control region for this species was detected, as described in previous molecular studies. We tested several primers commonly used for metabarcoding studies on four markers (12S, 16S, COI and Cytb), and all allow the discrimination of this species. This mitogenome is a reference for molecular identification, for instance in like environmental DNA studies.

  • Length-weight relationships of 13 fish species from Akanda National Park in Gabon, Central Africa

    • MVE BEH Jean-Hervé
    • OUMAR Sadio
    • MBEGA Jean-Daniel
    • LIWOUWOU Jean-Félicien
    • LE LOC'H François
    Date d'acceptation: 09 janvier 2024
    Statut: Sous presse/In press


    This study provides the length-weight relationships (LWRs) for 13 fish species belonging to 10 families. Samples were collected in the mangrove area of Akanda National Park (ANP) in Gabon between May 2017 and March 2018 with fishing trammel gillnets (15 m long and 1.10 m high, 100 mm large mesh outer layers, and one 10, 27, and 40 mm small mesh each net). Fish total length and total weight were measured, with the precision of 1 mm and 1 g, respectively. The LWRs parameters for the 13 fish species had not yet been reported in FishBase for Central Africa. Our study provides large size ranges for Monodactylus sebae and Pseudotolithus senegalensis LWRs for Central Africa. The determination coefficient (r²) between total length and total body weight ranged from 0.946 (Pellonula leonensis) to 0.999 (Pseudotolithus senegalensis). Allometric coefficients b varied from 2.9388 for Parachelon grandisquamis to 3.6258 for Pomadasys perotaei. The results of this study establish important baselines on the LWRs of 13 fish species from Central Africa and could be worthy for fisheries scientists and managers to complement further studies of population dynamics in order to improve management decisions in ANP in Gabon.

  • Automated image analysis suggests the consumption of herring eggs by red mullet in the English Channel

    • Cresson Pierre
    • Cordier Remy
    • Delegrange Alice
    Date d'acceptation: 08 janvier 2024
    Statut: Sous presse/In press


    Consumption of fish eggs is a major component of the trophodynamics of several marine ecosystems. Nevertheless, demonstrating the consumption by stomach content analysis is complex, notably due to the high digestibility of eggs. Atlantic herring (Clupea harengus) of the Downs substock migrate from the North Sea to spawn in the Eastern English Channel winter. On the basis of an opportunistic sampling of 5 red mullets (Mullus surmuletus) displaying herring eggs in their stomachs, this paper was the opportunity to document for the first time the trophic importance of herring eggs in the English Channel, by combining automated analysis of preys images with stable isotope and C:N ratios measurement. Eggs represented more than 90% of the prey items observed in the stomachs. In addition, low δ13C and high δ15N and C:N ratios demonstrated that this observation do not reflect occasional consumption of eggs, but that eggs are a common prey all through the entire spawning season. Automated image analysis demonstrated efficiency to produce semi-quantitative indicators of the diet, but manual post processing should be implemented if accuracy is needed. This work was nevertheless the opportunity to start the development of a learning set adapted to benthic organisms and available for further similar applications. This work also demonstrated the importance of an holistic approach of trophic interactions to manage exploited species.

  • Cirri and tassel in Zeugopterus regius (Bonnaterre, 1788), Pleuronectiformes, Scophthalmidae.

    • CHANET Bruno
    • DETTAÏ Agnès
    • DAVENPORT John
    Date d'acceptation: 08 décembre 2023
    Statut: Sous presse/In press


    Abstract – Examination of photographs and preserved specimens of Eckström's topknot [Zeugopterus regius (Bonnaterre, 1788), Pleuronectiformes, Scophthalmidae] shows previously undescribed appendages present on the eyed-side and around the eyes. Some cirri are present between the eyed scales and above the eyes. A tassel-like element decorates the top of the left (non-migrating) eye, but not in all individuals. Its relationship with possible geographic or sexual dimorphisms is discussed.

  • First records of Lepidorhombus whiffiagonis and Scophthalmus maximus (Scophthalmidae) from the Canary Islands (north-eastern Atlantic)

    • González, José A.
    • Lorenzo, José M.
    • Telle, Arthur
    Date d'acceptation: 22 août 2023
    Statut: Sous presse/In press


    The capture of several individuals of Lepidorhombus whiffiagonis and the sighting of two individuals of Scophthalmus maximus represent the first records for these scophthalmid species from the Canary Islands. It is very likely that both species are present in Canarian waters due to natural range expansions from nearby areas. This work also contributes to the knowledge of the morphological and meristic characteristics of the southernmost populations of these eastern Atlantic cold-temperate species.

  • First record of the fire-eyed loach Barbucca diabolica Roberts 1989 (Cypriniformes: Barbuccidae) for Belitung Island, Indonesia

    • Hasan Veryl
    • Kusumah Wanda
    • Purnawan Marta
    • Nasidi Nasidi
    • Arianto Arianto
    • Wijaya Imam
    • Yusnandar Firman
    • Baptista Yohanes
    • South Josie
    • Ottoni Felipe
    Date d'acceptation: 14 septembre 2023
    Statut: Sous presse/In press


    The fire-eyed loach Barbucca diabolica, found in Southeast Asian freshwaters, is currently known from Thailand, West Malaysia, Sumatra, and Borneo. Despite this wide distribution, there are no published reports of this species for Belitung Island (Indonesia). We report the first occurrence of B. diabolica for Belitung Island, based on two specimens collected in the East Belitung Province. This new record extends the species distribution about 600 km southeast from Johor (Malay Peninsular, Malaysia), which is about 400 km east from Musi River (Sumatra, Indonesia), and about 500 km southwest from Kapuas River (Borneo, Indonesia). Here we also register the species for an additional island in Sundaland region.

  • Anomalous specimens of Rhamdia quelen (Siluriformes: Heptapteridae) and Gymnotus cf. sylvius (Gymnotiformes: Gymnotidae)

    • CORAZZA, Ligia Q.
    • OTTONI, F. P.
    • SILVA, C.V.
    • NUNES, A.V.P.
    • KATZ, A.M.
    Date d'acceptation: 26 septembre 2023
    Statut: Sous presse/In press


    Here we describe anomalies in two Neotropical freshwater fishes. Case 1 refers to a tumor above the left pectoral fin near the operculum of a specimen of Rhamdia quelen (Heptapteridae). Case 2 is a horizontal plane dichotomy of the caudal filament of an individual of Gymnotus cf. sylvius (Gymnotidae). We also provide a brief comment of the possible cause of the anomalies in individuals of both species.  

  • New records of the recently described Pomatoschistus nanus Engin & Seyhan, 2017 (Teleostei: Gobiidae)

    • Kovačić Marcelo
    • Šanda Radek
    • Vukić Jasna
    • Renoult Julien P.
    • Falzon Mark-Anthony
    Date d'acceptation: 28 septembre 2023
    Statut: Sous presse/In press


    New records of the recently described Mediterranean goby Pomatoschistus nanus Engin & Seyhan, 2017 are reported. The species was identified by genetics, morphology and coloration. The records from Malta and Cyprus significantly extend the known geographic distribution of the species. The record from Malta further extends the upper depth limit and the known maximum size of this species, currently considered the smallest fish of the Mediterranean Sea. The morphological variability of P. nanus is discussed.