Forêts De Haute Valeur Pour La Conservation En RDC
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Bulletin of the British Museum (Natural History)
A new catfish from Sierra Leone Gordon Jon Howes Zoology Department, British Museum (Natural History), Cromwell Road, London SW7 5BD A collection of freshwater fishes from Sierra Leone made by Dr A. I. Payne contained three specimens of a previously undescribed dwarf catfish. At first sight these small fishes (33-5- 36 mm SL) were thought to be the juveniles of a Synodontis species, but closer examination showed many significant differences. Furthermore, dissection of two specimens revealed that they were adult females, having ripe ovaries. In overall morphology the new catfish appears closer to members of the Mochokidae sensu lato than to those of any other siluroid family, (see p. 168). The possibility that these fishes belonged to the dwarf mochokid genus Microsynodontis was dispelled when comparisons were made with species of that genus. MOCHOKIELLA gen. nov. Fishes of a small size with a shallow body (depth 25-5-27-9 of SL). Head broad (almost equal to its length) with dorsal profile sloped, snout rounded, ethmoid with narrow rostral process. Nostrils widely separated, the posterior situated midway between the anterior nostril and the orbital rim. Anterior nostril tubular. Mouth small, lower lip developed only at the corners of the mouth. Premaxillary teeth short and conical, in a broad patch. Dentary teeth like those on the premaxilla, set in a broad semi-crescentic band. Vomerine teeth absent. One pair of maxillary and two pairs of mandibular barbels. The maxillary barbel long, reaching to the tip of the cleithral process. Outer mandibular barbel extending to halfway along the cleithral process, the inner reaching to the base of the pectoral spine. -
Evidence of Hidden Diversity and Taxonomic Conflicts in Five Stream Fishes from the Eastern Zimbabwe Highlands Freshwater Ecoregion
A peer-reviewed open-access journal ZooKeys 768: 69–95Evidence (2018) of hidden diversity and taxonomic conflicts in five stream fishes... 69 doi: 10.3897/zookeys.768.21944 RESEARCH ARTICLE http://zookeys.pensoft.net Launched to accelerate biodiversity research Evidence of hidden diversity and taxonomic conflicts in five stream fishes from the Eastern Zimbabwe Highlands freshwater ecoregion Albert Chakona1,2, Wilbert T. Kadye2, Taurai Bere3, Daniel N. Mazungula1,2, Emmanuel Vreven4,5 1 South African Institute for Aquatic Biodiversity, Private Bag 1015, Grahamstown, South Africa, 6140 2 Department of Ichthyology and Fisheries Science, Rhodes University, P.O. Box 94, Grahamstown, South Africa, 6140 3 School of Wildlife, Ecology and Conservation, Chinhoyi University of Technology, P. Bag 7724, Chinhoyi, Zimbabwe 4 Royal Museum for Central Africa, Section of Vertebrates, Ichthyology, Leuvensesteenweg 13, 3080, Tervuren, Belgium 5 KU Leuven, Department of Biology, Laboratory of Biodiversity and Evolutio- nary Genomics, Deberiotstraat 32, 3000 Leuven, Belgium Corresponding author: Albert Chakona ([email protected]) Academic editor: N. Bogutskaya | Received 30 October 2018 | Accepted 25 April 2018 | Published 19 June 2018 http://zoobank.org/9621930C-8C43-40D0-8554-684035E99FAA Citation: Chakona A, Kadye WT, Bere T, Mazungula DN, Vreven E (2018) Evidence of hidden diversity and taxonomic conflicts in five stream fishes from the Eastern Zimbabwe Highlands freshwater ecoregion. ZooKeys 768: 69–95. https://doi.org/10.3897/zookeys.768.21944 Abstract -
Cinquieme Rapport National Sur La Diversite Biologique
PROGAMME DES NATIONS UNIES FONDS MONDIAL REPUBLIQUE DU CONGO POUR L’ENVIRONNEMENT POUR L’ENVIRONNEMENT CINQUIEME RAPPORT NATIONAL SUR LA DIVERSITE BIOLOGIQUE MARS 2014 PARTIE PRESENTANT LE RAPPORT PARTIE CONTRACTANTE REPUBLIQUE DU CONGO CORRESPONDANT NATIONAL NOM COMPLET DE L’ORGANISME : DIRECTION GENERALE DU DEVELOPPEMENT DURABLE NOM ET FONCTION DU CHARGE DE LIAISON NGOLIELE AUGUSTIN, DIRECTEUR DE L’ECOLOGIE ET DES RESSOURCES NATURELLES, POINT FOCAL CDB ADRESSE TÉLÉPHONE (242) 066938127 &(242) 0556 33 01 FAX COURRIEL [email protected] CHARGE DE LIAISON POUR LE RAPPORT NATIONAL NOM COMPLET DE L’ORGANISME : DIRECTION GENERALE DU DEVELOPPEMENT DURABLE NOM ET FONCTION DU CHARGE DE LIAISON NGOLIELE AUGUSTIN, DIRECTEUR DE L’ECOLOGIE ET DES RESSOURCES NATURELLES, POINT FOCAL CDB ADRESSE TÉLÉPHONE (242) 066938127 & (242) 0556 33 01 FAX - COURRIEL [email protected] SIGNATURE DE L’ADMINISTRATEUR AULA CHARGE DE LA PRESENTATION DU RAPPORT NATIONAL 07 AVRIL 2014 DATE D’ENVOI : 2 SIGLES ET ABREVIATIONS APA : Accès et Partage des Avantages issus de l’exploitation des Ressources génétiques BD : Biodiversité CBD : Convention sur la Diversité Biologique CERAG : Centre de Recherches sur l’Amélioration Génétique des Plantes CERVE : Centre d’Etude sur les Ressources Végétales CITES : Convention sur le Commerce International des Espèces de Flore et faune Sauvages ménacées d’extinction CNIAF: Centre national d’inventaires Fauniques et Forestiers COP : Conférence des Parties CPAL : Centre Pilote d’Afforestation en Limba CRAFFO: Centre de Recherches Agronomiques -
AN ECOLOGICAL and SYSTEMATIC SURVEY of FISHES in the RAPIDS of the LOWER ZA.Fre OR CONGO RIVER
AN ECOLOGICAL AND SYSTEMATIC SURVEY OF FISHES IN THE RAPIDS OF THE LOWER ZA.fRE OR CONGO RIVER TYSON R. ROBERTS1 and DONALD J. STEWART2 CONTENTS the rapids habitats, and the adaptations and mode of reproduction of the fishes discussed. Abstract ______________ ----------------------------------------------- 239 Nineteen new species are described from the Acknowledgments ----------------------------------- 240 Lower Zaire rapids, belonging to the genera Introduction _______________________________________________ 240 Mormyrus, Alestes, Labeo, Bagrus, Chrysichthys, Limnology ---------------------------------------------------------- 242 Notoglanidium, Gymnallabes, Chiloglanis, Lampro Collecting Methods and Localities __________________ 244 logus, Nanochromis, Steatocranus, Teleogramma, Tabulation of species ---------------------------------------- 249 and Mastacembelus, most of them with obvious Systematics -------------------------------------------------------- 249 modifications for life in the rapids. Caecomasta Campylomormyrus _______________ 255 cembelus is placed in the synonymy of Mastacem M ormyrus ____ --------------------------------- _______________ 268 belus, and morphologically intermediate hybrids Alestes __________________ _________________ 270 reported between blind, depigmented Mastacem Bryconaethiops -------------------------------------------- 271 belus brichardi and normally eyed, darkly pig Labeo ---------------------------------------------------- _______ 274 mented M astacembelus brachyrhinus. The genera Bagrus -
Phylogenetic Relationships of the South American Doradoidea (Ostariophysi: Siluriformes)
Neotropical Ichthyology, 12(3): 451-564, 2014 Copyright © 2014 Sociedade Brasileira de Ictiologia DOI: 10.1590/1982-0224-20120027 Phylogenetic relationships of the South American Doradoidea (Ostariophysi: Siluriformes) José L. O. Birindelli A phylogenetic analysis based on 311 morphological characters is presented for most species of the Doradidae, all genera of the Auchenipteridae, and representatives of 16 other catfish families. The hypothesis that was derived from the six most parsimonious trees support the monophyly of the South American Doradoidea (Doradidae plus Auchenipteridae), as well as the monophyly of the clade Doradoidea plus the African Mochokidae. In addition, the clade with Sisoroidea plus Aspredinidae was considered sister to Doradoidea plus Mochokidae. Within the Auchenipteridae, the results support the monophyly of the Centromochlinae and Auchenipterinae. The latter is composed of Tocantinsia, and four monophyletic units, two small with Asterophysus and Liosomadoras, and Pseudotatia and Pseudauchenipterus, respectively, and two large ones with the remaining genera. Within the Doradidae, parsimony analysis recovered Wertheimeria as sister to Kalyptodoras, composing a clade sister to all remaining doradids, which include Franciscodoras and two monophyletic groups: Astrodoradinae (plus Acanthodoras and Agamyxis) and Doradinae (new arrangement). Wertheimerinae, new subfamily, is described for Kalyptodoras and Wertheimeria. Doradinae is corroborated as monophyletic and composed of four groups, one including Centrochir and Platydoras, the other with the large-size species of doradids (except Oxydoras), another with Orinocodoras, Rhinodoras, and Rhynchodoras, and another with Oxydoras plus all the fimbriate-barbel doradids. Based on the results, the species of Opsodoras are included in Hemidoras; and Tenellus, new genus, is described to include Nemadoras trimaculatus, N. -
Article Genomic Evidence That Blind Cavefishes Are Not Wrecks of Ancient Life
bioRxiv preprint doi: https://doi.org/10.1101/2021.06.02.446701; this version posted June 2, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. No reuse allowed without permission. 1 Article 2 3 Genomic evidence that blind cavefishes are not wrecks of ancient life 4 5 6 Maxime Policarpo1, Patrick Laurenti2,7, Erik García-Machado3,4, Cushla Metcalfe5, Sylvie 7 Rétaux*,6 and Didier Casane*,1,7 8 9 1 Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et 10 Écologie, 91198, Gif-sur-Yvette, France. 11 2 Université de Paris, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France 12 3 Department of Biology, Institut de Biologie Intégrative et des Systèmes, Université Laval, 13 1030 Avenue de la Médecine, Québec City, Québec G1V 0A6, Canada. 14 4 Centro de Investigaciones Marinas, Universidad de La Habana, Calle 16, No. 114 entre 1ra y 15 3ra, Miramar, Playa, La Habana 11300, Cuba. 16 5 Independent Researcher, PO Box 21, Nambour QLD 4560, Australia. 17 6 Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay, 91190, Gif-sur- 18 Yvette, France. 19 7 Université de Paris, UFR Sciences du Vivant, F-75013 Paris, France. 20 21 * Corresponding authors: e-mails: [email protected]; [email protected] 22 1 bioRxiv preprint doi: https://doi.org/10.1101/2021.06.02.446701; this version posted June 2, 2021. The copyright holder for this preprint (which was not certified by peer review) is the author/funder. All rights reserved. -
Global Catfish Biodiversity 17
American Fisheries Society Symposium 77:15–37, 2011 © 2011 by the American Fisheries Society Global Catfi sh Biodiversity JONATHAN W. ARMBRUSTER* Department of Biological Sciences, Auburn University 331 Funchess, Auburn University, Alabama 36849, USA Abstract.—Catfi shes are a broadly distributed order of freshwater fi shes with 3,407 cur- rently valid species. In this paper, I review the different clades of catfi shes, all catfi sh fami- lies, and provide information on some of the more interesting aspects of catfi sh biology that express the great diversity that is present in the order. I also discuss the results of the widely successful All Catfi sh Species Inventory Project. Introduction proximately 10.8% of all fi shes and 5.5% of all ver- tebrates are catfi shes. Renowned herpetologist and ecologist Archie Carr’s But would every one be able to identify the 1941 parody of dichotomous keys, A Subjective Key loricariid catfi sh Pseudancistrus pectegenitor as a to the Fishes of Alachua County, Florida, begins catfi sh (Figure 2A)? It does not have scales, but it with “Any damn fool knows a catfi sh.” Carr is right does have bony plates. It is very fl at, and its mouth but only in part. Catfi shes (the Siluriformes) occur has long jaws but could not be called large. There is on every continent (even fossils are known from a barbel, but you might not recognize it as one as it Antarctica; Figure 1); and the order is extremely is just a small extension of the lip. There are spines well supported by numerous complex synapomor- at the front of the dorsal and pectoral fi ns, but they phies (shared, derived characteristics; Fink and are not sharp like in the typical catfi sh. -
Velocity Mapping in the Lower Congo River: a First Look at the Unique Bathymetry and Hydrodynamics of Bulu Reach, West Central Africa
Velocity Mapping in the Lower Congo River: A First Look at the Unique Bathymetry and Hydrodynamics of Bulu Reach, West Central Africa P.R. Jackson U.S. Geological Survey, Illinois Water Science Center, Urbana, IL, USA K.A. Oberg U.S. Geological Survey, Office of Surface Water, Urbana, IL, USA N. Gardiner American Museum of Natural History, New York, NY, USA J. Shelton U.S. Geological Survey, South Carolina Water Science Center, Columbia, SC, USA ABSTRACT: The lower Congo River is one of the deepest, most powerful, and most biologically diverse stretches of river on Earth. The river’s 270 m decent from Malebo Pool though the gorges of the Crystal Mountains to the Atlantic Ocean (498 km downstream) is riddled with rapids, cataracts, and deep pools. Much of the lower Congo is a mystery from a hydraulics perspective. However, this stretch of the river is a hotbed for biologists who are documenting evolution in action within the diverse, but isolated, fish popula- tions. Biologists theorize that isolation of fish populations within the lower Congo is due to barriers pre- sented by flow structure and bathymetry. To investigate this theory, scientists from the U.S. Geological Sur- vey and American Museum of Natural History teamed up with an expedition crew from National Geographic in 2008 to map flow velocity and bathymetry within target reaches in the lower Congo River using acoustic Doppler current profilers (ADCPs) and echo sounders. Simultaneous biological and water quality sampling was also completed. This paper presents some preliminary results from this expedition, specifically with re- gard to the velocity structure and bathymetry. -
Final Copy 2020 05 12 Watso
This electronic thesis or dissertation has been downloaded from Explore Bristol Research, http://research-information.bristol.ac.uk Author: Watson, Henry B Title: Unrecognised endemic biodiversity within East African Chiloglanis catfish populations General rights Access to the thesis is subject to the Creative Commons Attribution - NonCommercial-No Derivatives 4.0 International Public License. A copy of this may be found at https://creativecommons.org/licenses/by-nc-nd/4.0/legalcode This license sets out your rights and the restrictions that apply to your access to the thesis so it is important you read this before proceeding. Take down policy Some pages of this thesis may have been removed for copyright restrictions prior to having it been deposited in Explore Bristol Research. However, if you have discovered material within the thesis that you consider to be unlawful e.g. breaches of copyright (either yours or that of a third party) or any other law, including but not limited to those relating to patent, trademark, confidentiality, data protection, obscenity, defamation, libel, then please contact [email protected] and include the following information in your message: •Your contact details •Bibliographic details for the item, including a URL •An outline nature of the complaint Your claim will be investigated and, where appropriate, the item in question will be removed from public view as soon as possible. Unrecognised endemic biodiversity within East African Chiloglanis catfish populations. Henry Watson A dissertation submitted to the University of Bristol in accordance with the requirements for award of the degree of Masters by Research in the Faculty of Life Sciences. -
A New Species of Suckermouth Catfish (Mochokidae: Chiloglanis) from the Rio Mongo in Equatorial Guinea
Zootaxa 4652 (3): 507–519 ISSN 1175-5326 (print edition) https://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2019 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4652.3.7 http://zoobank.org/urn:lsid:zoobank.org:pub:386BA62C-B1EB-4AD3-8E9A-44951376185E A new species of suckermouth catfish (Mochokidae: Chiloglanis) from the Rio Mongo in Equatorial Guinea RAY C. SCHMIDT1,2 & CHRISTIAN BARRIENTOS3 1Biology Department, Randolph-Macon College, Ashland, VA 23005, USA 2Smithsonian Research Associate, National Museum of Natural History, Division of Fishes, Washington, DC 20560, USA 3Wildlife Conservation Society, Equatorial Guinea. Edificio Candy Vista Mar Of. 208 Bata Litoral, Equatorial Guinea Abstract A recent expedition surveyed freshwater fishes throughout the continental portion of Equatorial Guinea (Rio Muni). This portion of the Lower Guinean ichthyoprovince is relatively unknown with very few collections occurring since the 1960s. Sampling in the Rio Mongo, a tributary to the Rio Wele, yielded two Chiloglanis species; one putatively ascribed to the widespread species C. cameronensis, and the other species having similarities with C. harbinger described from the Lokoundje River in Cameroon. Morphometric analyses between the specimens from Rio Mongo and paratypes of C. harbinger confirm that they are distinct species and should be described as such. Here we describe Chiloglanis mongoensis sp. nov., a narrow endemic species only known from one locality in the Rio Mongo. We provide measurements from paratypes of C. harbinger and emphasize the need for further expeditions in the area. Key words: Endemism, specimen collection, allometric correction, biodiversity Introduction The Lower Guinea ichthyofaunal province stretches from the mouth of the Niger River to the mouth of the Congo River. -
Zootaxa, Synodontis Acanthoperca (Siluriformes: Mochokidae)
Zootaxa 1125: 45–56 (2006) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA 1125 Copyright © 2006 Magnolia Press ISSN 1175-5334 (online edition) Synodontis acanthoperca, a new species from the Ogôoué River sys- tem, Gabon with comments on spiny ornamentation and sexual dimorphism in mochokid catfishes (Siluriformes: Mochokidae) JOHN P. FRIEL1 & THOMAS R. VIGLIOTTA2 Cornell University Museum of Vertebrates, 159 Sapsucker Woods Road, Ithaca, NY 14850-1923, USA; 1 Email: [email protected], 2 [email protected] Abstract Synodontis acanthoperca, a new species of mochokid catfish, is described from rapids within the Ogôoué River system of Gabon. This relatively small species (<50 mm SL) is distinguished from all congeners by a distinctive pigmentation pattern that includes a pair of dark patches on the caudal fin and by the presence of hypertrophied opercular spines in sexually mature males. Key words: Siluriformes, Mochokidae, Synodontis, new species, Africa, Gabon, Ogôoué River, spiny ornamentation, sexual dimorphism Résumé Synodontis acanthoperca, une nouvelle espèce de poisson-chat de la famille des Mochokidae, est décrite des rapides du système fluvial de l’Ogôoué au Gabon. Cette espèce relativement petite (<50 mm SL) se distingue de tous ses congénères par un patron de pigmentation distinctif qui inclut deux taches foncées sur la nageoire caudale et par la présence d’épines operculaires hypertrophiées chez les males sexuellement matures. Introduction The genus Synodontis Cuvier, 1816 is the most species rich and widespread genus of mochokid catfishes. As currently recognized the genus contains approximately 120 valid species distributed throughout most of the freshwaters of sub-Saharan Africa and the Nile River system. -
Chiloglanis) with Emphasis on the Limpopo River System and Implications for Water Management Practices
SYSTEMATICS AND PHYLOGEOGRAPHY OF SUCKERMOUTH SPECIES (CHILOGLANIS) WITH EMPHASIS ON THE LIMPOPO RIVER SYSTEM AND IMPLICATIONS FOR WATER MANAGEMENT PRACTICES. Report to the Water Research Commission by MJ Matlala, IR Bills, CJ Kleynhans & P Bloomer Department of Genetics University of Pretoria WRC Report No. KV 235/10 AUGUST 2010 Obtainable from Water Research Commission Publications Private Bag X03 Gezina, Pretoria 0031 SOUTH AFRICA [email protected] This report emanates from a project titled: Systematics and phylogeography of suckermouth species (Chiloglanis) with emphasis on the Limpopo River System and implications of water management practices (WRC Project No K8/788) DISCLAIMER This report has been reviewed by the Water Research Commission (WRC) and approved for publication. Approval does not signify that the contents necessarily reflect the views and policies of the WRC, nor does mention of trade names or commercial products constitute endorsement or recommendation for use ISBN 978-1-77005-940-5 Printed in the Republic of South Africa ii EXECUTIVE SUMMARY The genus Chiloglanis includes 45 species of which eight are described from southern Africa. The genus is characterized by jaws and lips that are modified into a sucker or oral disc used for attachment to a variety of substrates and feeding in lotic systems. The suckermouths are typically found in fast flowing waters but over varied substrates and water depths. This project focuses on three species, namely Chiloglanis pretoriae van der Horst 1931, C. swierstrai van der Horst 1931 and C. paratus Crass 1960, all of which occur in the Limpopo River System. The suckermouth catfishes have been extensively used in aquatic surveys as indicators of impacts from anthropogenic activities and the health of the river systems.