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Belgian Journal of Zoology
Belgian Journal of Zoology Published by the “KONINKLIJKE BELGISCHE VERENIGING VOOR DIERKUNDE — SOCIÉTÉ ROYALE ZOOLOGIQUE DE BELGIQUE” Volume 137 (1) (January, 2007) Managing Editor of the Journal: Ronny Blust Department of Biology/EBT University of Antwerp, Campus Groenenborger B-2020 Antwerp (Belgium) Printed in Belgium (May 2007) by Drukkerij George Michiels, N.V., Tongeren Belg. J. Zool., 137 (1) : 3-9 January 2007 Habitudes alimentaires de Brycinus longipinnis dans le complexe fluvio-lacustre de la Bia, Côte d’Ivoire Yéhé Mathieu Dietoa 1, Germain Gourène 1 & Allassane Ouattara 1 1 Université d’Abobo-Adjamé‚ UFR-SGE, Laboratoire d’Environnement et Biologie Aquatique, 02 B.P. 801 Abidjan 02, Côte d’Ivoire. Corresponding author : Germain Gourène, e-mail : [email protected]. RÉSUMÉ. Le régime alimentaire de 171 spécimens de Brycinus longipinnis a été étudié en fonction de la taille, des stations et des saisons hydrologiques. L’échantillonnage a porté sur 24 prélèvements mensuels. Le plan d’eau concerné est la rivière Bia sur laquelle a été construit en 1959 un barrage hydroélectrique. L’indice d’importance relative combinant les pourcentages d’occur- rence, numérique et pondéral a été utilisé. Il apparaît que l’espèce indiquée est omnivore. Elle consomme des macrophytes ainsi que des invertébrés terrestres et aquatiques avec comme aliments principaux les Chironomidae et les Formicidae. En amont du bar- rage de retenue, le régime alimentaire de B. longipinnis varie en fonction de la taille des individus. Il est également fonction des saisons hydrologiques dans toutes les stations (amont, aval, lac). MOTS CLÉS : Alestidae, Brycinus longipinnis, habitudes alimentaires, complexe fluvio-lacustre, bassin Bia, Afrique occidentale. -
Is the Dutch Domesticated Strain of Clarias Gariepinus (Burchell, 1822) a Hybrid?
African Journal of Biotechnology Vol. 6 (8), pp. 1072-1076, 16 April 2007 Available online at http://www.academicjournals.org/AJB ISSN 1684–5315 © 2007 Academic Journals Full Length Research Paper Is the Dutch domesticated strain of Clarias gariepinus (Burchell, 1822) a hybrid? Nwafili Sylvanus Anene1,2 and Gao Tianxiang1* 1Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao. 266003 P. R. China. 2Department of Fisheries, Ministry of Agriculture and Natural Resources, P. M. B. 5023, Asaba, Delta State, Nigeria. Accepted 5 March, 2007 In a study of genetic characteristics of exotic Clarias gariepinus we obtained the animals from five hatcheries in Nigeria and sequenced 399 base pair of the cyt b gene. The results show that the exotic C. gariepinus clustered in two lineages: Clarias anguillaris (West Africa) and C. gariepinus (East Africa). First, this strain could be a hybrid between the two species since the original populations used for selection were from different sources including West Africa where both occur sympatrically. Alternatively, it has been contaminated via unwholesome practices. Keywords: Clarias gariepinus, Holland Clarias, contaminated hatchery stock and hybrid. INTRODUCTION The Clariid catfishes, order Siluriformes, are distributed in aboration with the World Bank sponsored National Africa, Asia Minor and South-east Asia and the Indian Agricultural Development project imported this Dutch subcontinent (Teugels and Adriaens, 2003). Two genera domesticated strain (Dada and Wonah, 2003) over a of this family, Clarias and Heterobranchus, with the decade ago. Since the introduction, no study has been Cichlids are the most used in African aquaculture carried out to determine its genetic characteristics. -
Fish Afunctional Morphological Approach to the Cranial Ontogeny Ofthe African Catfish, Clarias Gariepinus (Siluriformes,Clariidae)
Faculteit Academiejaar Wetenschappen 1997/1998 UNIVERSITEIT GENT On how a larva becomes an adult catfish a functional morphological approach to the cranialontogeny of the African catfish, Clarias gariepinus (Siluriformes, Clariidae) Van larvale tot adulte katvis eenfunctioneel-morfologische benadering vande craniale ontogenie van de Afrikaanse katvis, Clarias gariepinus (Siluriformes, Clariidae) PART I TEXT Dominique Adriaens Thesis submitted to obtain the degree of Rector: Prof. Dr. ir. J. Willems Doctor in Sciences (Biology) Decaan: Prof. Dr. W. De Breuck Proefschrift voorgedragen tot het bekomen van de graad van Doctor in de Wetenschappen (Biologie) Promotor: Prof. Dr. W. Verraes Contents i Acknowledgements - Dankwoord Part I - General introduction Chapter I.1 – History and aims..................................................................................................................................1 I.1.1 - HISTORY ............................................................................................................................................ 1 I.1.2 - AIMS ................................................................................................................................................ 2 Chapter I.2 - Material and methods.........................................................................................................................4 I.2.1 - ONTOGENETIC SERIES OF CLARIAS GARIEPINUS ............................................................................... 4 I.2.2 - MORPHOLOGICAL DESCRIPTIONS..................................................................................................... -
Structure and Diversity of Fish Communities in Man-Made Ponds Of
EUROPEAN JOURNAL OF ECOLOGY EJE 2018, 4(2): 84-91, doi:10.2478/eje-2018-0015 1Department of Applied and Environmental Structure and diversity of fish Biology, Rivers State University of Science and Technology, Nkpolu-Oro- communities in man-made ponds of the worukwo, Port Harcourt, Nigeria Niger Delta (southern Nigeria) Corresponding author, E-mail: lazarusonisowu- [email protected]; gakanina2000@yahoo. com; niokingamadi@ 1 1,3 1,3 1 1 2 gmail.com; ugbomeh. O.T. Lazarus , Godfrey C. Akani , Luca Luiselli , Nioking Amadi , Adaobi P. Ugbomeh , A. Osuamkpe , 1,3 1 4 1 3,5 [email protected]; Daniele Dendi , Nwabueze Ebere , Nic Pacini , Chimela Wala , Stephanie Nwanefulu Ajong , Harrison [email protected]; S. Uyi2 ebere.nwabueze@ust. edu.ng; Wala_c@yahoo. com; harrisonweizi@ yahoo.co.uk ABSTRACT 1. A survey of eight local earthen hand-dug ponds located within the freshwater swamps of a Niger Delta area 2 Institute of Pollution (southern Nigeria) was conducted over a period of 3 months. A total of 4,313 fishes representing 19 species Studies, Rivers State from 12 families were recorded. University of Science and Technology, Nkpolu-Oro- 2. The most abundant species was Xenomystus nigri (905 individuals), whereas the least common was Protop- worukwo, Port Harcourt, terus annectens (13). Cichlidae and Clariidae counted three species each, whereas Anabantidae, Hepsetidae, Nigeria. Mochokidae, Protopteridae, Phractolaemidae, Malapteruridae and Gymnarchidae were represented by a single 3 species each. IDECC – Institute for Development, Ecology, 3. A lotic species, Synodontis sp., was recorded possibly as a result of the episodic flood of 2012. Conservation and Coop- 4. -
The Jaw Adductor Muscle Complex in Teleostean Fishes: Evolution, Homologies and Revised Nomenclature (Osteichthyes: Actinopterygii)
The Jaw Adductor Muscle Complex in Teleostean Fishes: Evolution, Homologies and Revised Nomenclature (Osteichthyes: Actinopterygii) Ale´ssio Datovo1,2,3*, Richard P. Vari4 1 Laborato´rio de Ictiologia, Museu de Zoologia da Universidade de Sa˜o Paulo, Sa˜o Paulo, Brazil, 2 Laborato´rio de Ictiologia de Ribeira˜o Preto, Department of Biologia, Universidade de Sa˜o Paulo, Faculdade de Filosofia, Cieˆncias e Letras de Ribeira˜o Preto, Ribeira˜o Preto, Sao Paulo, Brazil, 3 Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, United States of America, 4 Division of Fishes, Department of Vertebrate Zoology, MRC-159, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, United States of America Abstract The infraclass Teleostei is a highly diversified group of bony fishes that encompasses 96% of all species of living fishes and almost half of extant vertebrates. Evolution of various morphological complexes in teleosts, particularly those involving soft anatomy, remains poorly understood. Notable among these problematic complexes is the adductor mandibulae, the muscle that provides the primary force for jaw adduction and mouth closure and whose architecture varies from a simple arrangement of two segments to an intricate complex of up to ten discrete subdivisions. The present study analyzed multiple morphological attributes of the adductor mandibulae in representatives of 53 of the 55 extant teleostean orders, as well as significant information from the literature in order to elucidate the homologies of the main subdivisions of this muscle. The traditional alphanumeric terminology applied to the four main divisions of the adductor mandibulae –A1,A2,A3, and Av – patently fails to reflect homologous components of that muscle across the expanse of the Teleostei. -
Terrestrial Capture of Prey by the Reedfish, a Model Species for Stem Tetrapods
Received: 25 October 2016 | Revised: 18 November 2016 | Accepted: 24 November 2016 DOI: 10.1002/ece3.2694 ORIGINAL RESEARCH Terrestrial capture of prey by the reedfish, a model species for stem tetrapods Sam Van Wassenbergh1,2 | Christoffel Bonte1 | Krijn B. Michel1,3 1Department of Biology, University of Antwerp, Antwerp, Belgium Abstract 2Département d’Ecologie et de Gestion de Due to morphological resemblance, polypterid fishes are used as extant analogues of la Biodiversité, Muséum National D’Histoire Late Devonian lobe- finned sarcopterygians to identify the features that allowed the Naturelle, UMR 7179 CNRS, Paris Cedex 05, France evolution of a terrestrial lifestyle in early tetrapods. Previous studies using polypterids 3Structure & Motion Laboratory, The Royal showed how terrestrial locomotion capacity can develop, and how air ventilation for Veterinary College, Hatfield, Hertfordshire, UK breathing was possible in extinct tetrapodomorphs. Interestingly, one polypterid spe- Correspondence cies, the reedfishErpetoichthys calabaricus, has been noted being capable of capturing Sam Van Wassenbergh, Département prey on land. We now identified the mechanism of terrestrial prey- capture in reedfish. d’Ecologie et de Gestion de la Biodiversité Muséum National D’Histoire Naturelle, UMR We showed that this species uses a lifted trunk and downward inclined head to cap- 7179 CNRS, Paris Cedex 5, France. ture ground- based prey, remarkably similar to the mechanism described earlier for Email: [email protected] eel- catfish. Reedfish similarly use the ground support and flexibility of their elongated Funding information body to realize the trunk elevation and dorsoventral flexion of the anterior trunk re- Agence Nationale de la Recherche, Grant/ Award Number: ANR-16-ACHN-0006-01; gion, without a role for the pectoral fins. -
Proceedings of a Workshop on the Development of a Genetic Improvement Program for African Catfish Clarias Gariepinus
PROCEEDINGS | 1889 Proceedings of a Workshop on the Development of a Genetic Improvement Program for African Catfish Clarias gariepinus Edited by R.W. Ponzoni and N.H. Nguyen Reducing poverty and hunger by improving fisheries and aquaculture www.worldfishcenter.org Proceedings of a Workshop on the Development of a Genetic Improvement Program for African Catfi sh Clarias gariepinus Accra, Ghana, 5-9 November 2007 Edited by Raul W. Ponzoni Nguyen Hong Nguyen The WorldFish Center 2008 This document should be cited as: Ponzoni, R.W. and N.H. Nguyen (eds). 2008. Proceedings of a Workshop on the Development of a Genetic Improvement Program for African catfish Clarias gariepinus. WorldFish Center Conference Proceedings Number 1889. The WorldFish Center, Penang, Malaysia. 130 p. Editors’ affiliations: Raul W. Ponzoni: The WorldFish Center, Penang, Malaysia Nguyen Hong Nguyen: The WorldFish Center, Penang, Malaysia ISBN: 978-983-2346-68-5 WorldFish Center Contribution Number: 1889 Cover photograph (front): Dr. Randall Brummett (rear): Dr. Mahmoud Rezk Layout and design by: CIMMYT Printed by: Delimax (M) Sdn. Bhd., Penang A PDF copy of the publication is available from: www.worldfishcenter.org © 2008 The WorldFish Center Published by: The WorldFish Center, P.O. Box 500 GPO, Penang, Malaysia All rights reserved. This publication may be reproduced in whole or in part and in any form for educational or nonprofit purposes without the permission of the copyright holders provided that due acknowledgement of the source is given. This publication may not be copied or distributed electronically for resale or other commercial purposes without prior permission, in writing, from The WorldFish Center. -
The Evolutionary Ecology of Venomous Catfishes, with a Focus on Members of the North American Family Ictaluridae (Teleostei: Siluriformes)
THE EVOLUTIONARY ECOLOGY OF VENOMOUS CATFISHES, WITH A FOCUS ON MEMBERS OF THE NORTH AMERICAN FAMILY ICTALURIDAE (TELEOSTEI: SILURIFORMES) by Jeremy J. Wright A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy (Ecology and Evolutionary Biology) in the University of Michigan 2012 Doctoral Committee: Professor William L. Fink, Co-Chair Associate Professor Thomas F. Duda, Jr., Co-Chair Professor Mark D. Hunter Emeritus Professor Gerald R. Smith ACKNOWLEDGEMENTS The completion of this work would not have been possible without the contributions of a number of people who were gracious enough to offer their assistance and support over the course of my time as a Ph.D. student at the University of Michigan. First and foremost is my wife, Jacqueline, who has unprotestingly been conscripted as a field assistant, sounding board and source for research ideas and methodological improvement, reviewer and editor of manuscripts, and constant source of encouragement. It is no exaggeration to say that this research would not be what it is without her input and assistance. My dissertation committee has provided invaluable encouragement, advice, and logistical support throughout the process of formulating and executing the research contained herein. Bill Fink (initially my committee’s sole chair) deserves credit for first encouraging me to pursue the area of venomous fish research, which has proved enormously fruitful in terms of projects, publications and professional interactions and recognition. His enthusiasm for the research program that I’ve developed, as well as his trust in my ability to complete these and other research projects during my time at the University of Michigan, have always been greatly appreciated. -
Food Webs, Hydrologic Connectivity, and Flow Pulses in the Upper
FISH ASSEMBLAGE AND FOOD WEB STRUCTURE IN WHEDOS (SHALLOW FLOODPLAIN HABITATS) OF THE OUEME RIVER, WEST AFRICA A Thesis by ANDREW THOMAS JACKSON Submitted to the Office of Graduate Studies of Texas A&M University In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE August 2012 Major Subject: Wildlife and Fisheries Sciences FISH ASSEMBLAGE AND FOOD WEB STRUCTURE IN WHEDOS (SHALLOW FLOODPLAIN HABITATS) OF THE OUEME RIVER, WEST AFRICA A Thesis by ANDREW THOMAS JACKSON Submitted to the Office of Graduate Studies of Texas A&M University In partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Kirk O. Winemiller Committee Members, Kevin Conway Jason West Head of Department, John Carey August 2012 Major Subject: Wildlife and Fisheries Sciences iii ABSTRACT Fish Assemblage and Food Web Structure in Whedos (Shallow Floodplain Habitats) of the Oueme River, West Africa. August, 2012 Andrew Thomas Jackson, B.S.; M.S., Texas A&M University Chair of Advisory Committee: Dr. Kirk O. Winemiller In the Oueme River, a lowland river in Benin, Africa, artificial ponds constructed in the floodplain (whedos) are colonized during the high-water period by a presumably random sample of fishes from the river channel. As water slowly recedes from the floodplain, fishes are isolated in whedos until they are harvested near the end of the dry season. I surveyed fishes in whedos and adjacent main-channel and floodplain habitats during two low-water (2008 and 2009) and one falling-water (2010-2011) periods, and measured a suite of physicochemical variables including dissolved oxygen, temperature, specific conductivity, and percent cover of aquatic vegetation in the falling-water period to investigate if fish assemblage structure of whedos resulted from stochastic or deterministic processes. -
Species Lists, Dna Barcodes, and Images for Ornamental Fish
DEVELOPING MONITORING TOOLS FOR TOMORROW’S INVASIVES: SPECIES LISTS, DNA BARCODES, AND IMAGES FOR ORNAMENTAL FISH YI YOUGUANG NATIONAL UNIVERSITY OF SINGAPORE 2014 DEVELOPING MONITORING TOOLS FOR TOMORROW’S INVASIVES: SPECIES LISTS, DNA BARCODES, AND IMAGES FOR ORNAMENTAL FISH YI YOUGUANG (B.Sc. (Hons 2nd Upper), NUS) A THESIS SUBMITTED FOR THE DEGREE OF DOCTOR OF PHILOSOPHY DEPARTMENT OF BIOLOGICAL SCIENCES NATIONAL UNIVERSITY OF SINGAPORE 2014 DECLARATION I hereby declare that this thesis is my original work and it has been written by me in its entirety. I have duly acknowledged all the sources of information which have been used in the thesis. This thesis has also not been submitted for any degree in any university previously. ___________________ YI YOUGUANG 31 March 2014 ACKNOWLEDGEMENTS I would like to thank the PI and colleagues in the Evolutionary Biology Laboratory for providing valuable help and resources, and consultation during my course of research. I especially like to thank Miss Amrita for providing valuable assistance in bioinformatics to make many of my research analyses possible. I will like to thank Dr Ang Yuchen for providing valuable opinion on the aesthetics and effective data presentation in this thesis. Both Amrita, Jayanthi and Yuchen have made substantial contributions in providing the computational scripts and species page templates needed for mass production of ornamental fish species pages. I would like to thank Amrita, Yuchen and Kathy for editing and doing spell check for the thesis. I would like to thank Jayanthi for contributing her computer for data analysis. I will like to thank my supervisor Prof.