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Growth and Ontogeny
G rowth and ontogeny The inland water fishes of Africa G rowth is one of the most complex processes for an organism . On the metabolic level, part of the energy consumed will be devoted to increasing its weight, but the proportion of energy used to generate living matter depends on the age of the individuals, their physiological state, their environmental conditions, etc. Firs t stages of deve lopme nt Little is know n about the first stages of development in Af rican fishes. A review of literature shows th at data is only available for 18 of 74 ident ifie d fam ilies (Carnbrav & Teugels. 1988). ONTOGENY AND MAIN STAGES OF DEVELOPMENT Ontogeny is the process of differentiation • the juvenile period begins w hen the fins of the diff erent stages of development are we ll-diffe rentiated and w hen all temporary in the life of an organism. We usually distinguish organs are replaced by final organs. several periods in the life of a fish. This stage ends w ith the first maturation (BaIon, 1981, 1984 and 1986): of gametes. This is usually a period of rapid • the embryonic period wh ich begins w ith growth sometimes characterized by a specific fertilization and is characterized by exclusively colouration; endogenous nutrition from the egg yolk; • the adult period begins w ith the first • the larval period w hich begins with maturation of gametes. the progressive but rapid transition from It is characterized by a decrease in somatic an endogenous food supply to exogenous grow th rate; feeding. This period is characterized by • finally, there is sometimes a period the presence of tem porary larval organisms; of senescence. -
§4-71-6.5 LIST of CONDITIONALLY APPROVED ANIMALS November
§4-71-6.5 LIST OF CONDITIONALLY APPROVED ANIMALS November 28, 2006 SCIENTIFIC NAME COMMON NAME INVERTEBRATES PHYLUM Annelida CLASS Oligochaeta ORDER Plesiopora FAMILY Tubificidae Tubifex (all species in genus) worm, tubifex PHYLUM Arthropoda CLASS Crustacea ORDER Anostraca FAMILY Artemiidae Artemia (all species in genus) shrimp, brine ORDER Cladocera FAMILY Daphnidae Daphnia (all species in genus) flea, water ORDER Decapoda FAMILY Atelecyclidae Erimacrus isenbeckii crab, horsehair FAMILY Cancridae Cancer antennarius crab, California rock Cancer anthonyi crab, yellowstone Cancer borealis crab, Jonah Cancer magister crab, dungeness Cancer productus crab, rock (red) FAMILY Geryonidae Geryon affinis crab, golden FAMILY Lithodidae Paralithodes camtschatica crab, Alaskan king FAMILY Majidae Chionocetes bairdi crab, snow Chionocetes opilio crab, snow 1 CONDITIONAL ANIMAL LIST §4-71-6.5 SCIENTIFIC NAME COMMON NAME Chionocetes tanneri crab, snow FAMILY Nephropidae Homarus (all species in genus) lobster, true FAMILY Palaemonidae Macrobrachium lar shrimp, freshwater Macrobrachium rosenbergi prawn, giant long-legged FAMILY Palinuridae Jasus (all species in genus) crayfish, saltwater; lobster Panulirus argus lobster, Atlantic spiny Panulirus longipes femoristriga crayfish, saltwater Panulirus pencillatus lobster, spiny FAMILY Portunidae Callinectes sapidus crab, blue Scylla serrata crab, Samoan; serrate, swimming FAMILY Raninidae Ranina ranina crab, spanner; red frog, Hawaiian CLASS Insecta ORDER Coleoptera FAMILY Tenebrionidae Tenebrio molitor mealworm, -
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 -
A Guide to the Parasites of African Freshwater Fishes
A Guide to the Parasites of African Freshwater Fishes Edited by T. Scholz, M.P.M. Vanhove, N. Smit, Z. Jayasundera & M. Gelnar Volume 18 (2018) Chapter 2.1. FISH DIVERSITY AND ECOLOGY Martin REICHARD Diversity of fshes in Africa Fishes are the most taxonomically diverse group of vertebrates and Africa shares a large portion of this diversity. This is due to its rich geological history – being a part of Gondwana, it shares taxa with the Neotropical region, whereas recent close geographical affnity to Eurasia permitted faunal exchange with European and Asian taxa. At the same time, relative isolation and the complex climatic and geological history of Africa enabled major diversifcation within the continent. The taxonomic diversity of African freshwater fshes is associated with functional and ecological diversity. While freshwater habitats form a tiny fraction of the total surface of aquatic habitats compared with the marine environment, most teleost fsh diversity occurs in fresh waters. There are over 3,200 freshwater fsh species in Africa and it is likely several hundreds of species remain undescribed (Snoeks et al. 2011). This high diversity and endemism is likely mirrored in diversity and endemism of their parasites. African fsh diversity includes an ancient group of air-breathing lungfshes (Protopterus spp.). Other taxa are capable of breathing air and tolerate poor water quality, including several clariid catfshes (e.g., Clarias spp.; Fig. 2.1.1D) and anabantids (Ctenopoma spp.). Africa is also home to several bichir species (Polypterus spp.; Fig. 2.1.1A), an ancient fsh group endemic to Africa, and bonytongue Heterotis niloticus (Cuvier, 1829) (Osteoglossidae), a basal actinopterygian fsh. -
Alestes Baremoze , Brycinus Nurse and Schilbe Intermedius from the Lower Reaches of White Volta River (Yapei), Ghana
Vol. 5(6), pp.152-165 June, 2013 International Journal of Fisheries and DOI: 10.5897/IJFA2012.0001 ISSN 1991-637X ©2013 Academic Journals Aquaculture http://www.academicjournals.org/IJFA Full Length Research Paper Length-weight relationships and condition factors of Alestes baremoze , Brycinus nurse and Schilbe intermedius from the lower reaches of White Volta River (Yapei), Ghana Seth Mensah Abobi 1 and Werner Ekau 2 1Department of Fisheries and Aquatic Resources Management, University for Development Studies, P. O. Box TL 1882 Tamale, Ghana. 2Leibniz Center for Tropical Marine Ecology (ZMT), Fahrenheitstr. 6 D-28359 Bremen, Germany. Accepted 22 April, 2013 A study to assess the length-weight relationships and the condition factors of 3 abundant and commercial fish species namely Alestes baremoze , Brycinus nurse and Schilbe intermedius in the lower reaches of the White Volta River (Yapei) was conducted from October 2011 to March 2012. Using W = aL b, the length-weight relationships of the species were calculated. Condition factors of the species were obtained using the formula: W*100/L b. A total of 284 A. baremoze were measured with total mid length size range of 10.5 to 44.5 cm. A total of 197 B. nurse were measured and ranged from 6.5 to 27.5 cm total mid-length whereas 175 of S. intermedius were measured and had total mid length size range of 8.5 to 26.5 cm. The slope b of the length-weight relationships of the 3 species were within the acceptable range of 2.5 to 3.5 and can be used to approximate the weight for the 3 species in the lower reaches of the White Volta River. -
View/Download
CICHLIFORMES: Cichlidae (part 5) · 1 The ETYFish Project © Christopher Scharpf and Kenneth J. Lazara COMMENTS: v. 10.0 - 11 May 2021 Order CICHLIFORMES (part 5 of 8) Family CICHLIDAE Cichlids (part 5 of 7) Subfamily Pseudocrenilabrinae African Cichlids (Palaeoplex through Yssichromis) Palaeoplex Schedel, Kupriyanov, Katongo & Schliewen 2020 palaeoplex, a key concept in geoecodynamics representing the total genomic variation of a given species in a given landscape, the analysis of which theoretically allows for the reconstruction of that species’ history; since the distribution of P. palimpsest is tied to an ancient landscape (upper Congo River drainage, Zambia), the name refers to its potential to elucidate the complex landscape evolution of that region via its palaeoplex Palaeoplex palimpsest Schedel, Kupriyanov, Katongo & Schliewen 2020 named for how its palaeoplex (see genus) is like a palimpsest (a parchment manuscript page, common in medieval times that has been overwritten after layers of old handwritten letters had been scraped off, in which the old letters are often still visible), revealing how changes in its landscape and/or ecological conditions affected gene flow and left genetic signatures by overwriting the genome several times, whereas remnants of more ancient genomic signatures still persist in the background; this has led to contrasting hypotheses regarding this cichlid’s phylogenetic position Pallidochromis Turner 1994 pallidus, pale, referring to pale coloration of all specimens observed at the time; chromis, a name -
Download Curriculum Vitae
Curriculum Vitae SCOTT ALLEN SCHAEFER PERSONAL Address: American Museum of Natural History e mail: [email protected] Division of Vertebrate Zoology Voice: 212-769-5652 Central Park West at 79th Street Mobile: 215-570-2943 New York, NY 10024-5192 Fax: 212-769-5642 EDUCATION Ph.D. Evolutionary Biology, University of Chicago, 1986. Faculty advisors: Dr. G.V. Lauder, Dr. R.K. Johnson Dissertation: Historical Biology of the Loricariid Catfishes: Phylogenetics and Functional Morphology M.S. Marine Science, University of South Carolina, 1982. Faculty advisor: Dr. J.M. Dean Thesis: Variability in Abundance of the Summer-Spawned Ichthyoplankton Community of North Inlet Estuary, South Carolina B.S. Zoology, Ohio State University, 1980. POSTDOCTORAL 1987-1988 Smithsonian Postdoctoral Fellow, Dept. of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution. 1986-1987 Postdoctoral Fellow in Ichthyology, Natural History Museum of Los Angeles County. PROFESSIONAL APPOINTMENTS 2015- Dean of Science for Collections, Exhibitions, and the Public Understanding of Science, American Museum of Natural History. 2010-2015 Associate Dean of Science for Collections, American Museum of Natural History. 2008- Professor, Richard Gilder Graduate School, American Museum of Natural History. 2003- Curator, American Museum of Natural History. 2001-2008 Curator-in-Charge, Dept. of Ichthyology, American Museum of Natural History. 1996-2003 Associate Curator, American Museum of Natural History. 1994-1996 Associate Curator, Academy of Natural Sciences of Philadelphia. 1991-1996 Chairman, Dept. of Ichthyology, Academy of Natural Sciences of Philadelphia. 1988-1993 Assistant Curator, Academy of Natural Sciences of Philadelphia. ACADEMIC AND ADJUNCT APPOINTMENTS 2005 External Thesis Examiner, E.R. Swartz, PhD candidate in molecular genetics, “Phylogenetics, phylogeography and evolution of the redfins (Teleostei, Cyprinidae, Pseudobarbus) from southern Africa, University of Pretoria, South Africa. -
Zootaxa,Micralestes (Characiformes, Alestidae)
Zootaxa 1614: 17–29 (2007) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA Copyright © 2007 · Magnolia Press ISSN 1175-5334 (online edition) Micralestes (Characiformes, Alestidae) of the lower Congo River, with a description of a new species endemic to the lower Congo River rapids in the Democratic Republic of Congo MELANIE L.J. STIASSNY 1 & VICTOR MAMONEKENE 2 1American Museum of Natural History, Department of Ichthyology, Central Park West at 79th Street, New York, NY 10024, USA. E-mail: [email protected] 2Institut de Développement Rural, Université Marien Ngouabi, B.P. 69 Brazzaville, Republic of Congo. E-mail: [email protected] Abstract A new dwarf alestid from the vicinity of Inga on the lower Congo River, Bas Congo Province, Democratic Republic of Congo is described. Assignment of the new taxon to the poorly defined genus, Micralestes, is discussed and justified on the basis of available morphological character data. With the recognition of Micralestes schelly sp. nov., a total of six Micralestes are now known to inhabit the 350 km stretch of the Congo River from Pool Malebo to Boma near the river’s estuary. These are Micralestes acutidens (Peters, 1852), Micralestes humilis Boulenger, 1899, Micralestes lualabae Poll, 1967, Micralestes holargyreus (Günther, 1873), Micralestes stormsi Boulenger, 1902, and the new species Micralestes schelly. Of these Micralestes schelly and Micralestes holargyreus are considered herein as restricted-range endemics of the lower Congo River. An illustrated key to Micralestes of the lower Congo River is provided. Key words: Micralestes, lower Congo River, identification key, new species Résumé Un nouveau Alestidae nain est décrit des environs d’Inga dans le cours inférieur du fleuve Congo, Province du Bas- Congo en République Démocratique du Congo. -
Alter Etal.2017 Congo Cichlids.Pdf
Genome-wide SNP data reveal cryptic phylogeographic structure and microallopatric divergence in a rapids-adapted clade of cichlids from the Congo River S. Elizabeth Alter (1,2,3)*, Jason Munshi-South (4), Melanie L. J. Stiassny (3,5) (1) Department of Biology, York College/The City University of New York, 94-20 Guy R. Brewer Blvd, Jamaica NY 11451 (2) The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY 10016 (3) The Sackler Institute for Comparative Genomics, American Museum of Natural History, 79th Street and Central Park West, New York, NY 10024 (4) Louis Calder Center—Biological Field Station, Fordham University, Armonk, NY 10504 (5) Department of Ichthyology, American Museum of Natural History, 79th Street and Central Article Park West, New York, NY 10024 Key words: diversification, phylogeography, fish, RAD-Seq, African biogeography *Corresponding author: S. Elizabeth Alter [email protected] Phone: (650) 283-5629 Fax: (718) 262-2700 Running title: Phylogeography in rapids-adapted cichlids This article has been accepted for publication and undergone full peer review but has not Accepted been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as doi: 10.1111/mec.13973 This article is protected by copyright. All rights reserved. Abstract: The lower Congo River (LCR) is a freshwater biodiversity hotspot in Africa characterized by some of the world's largest rapids. However, little is known about the evolutionary forces shaping this diversity, which include numerous endemic fishes. We investigated phylogeographic relationships in Teleogramma, a small clade of rheophilic cichlids, in the context of regional geography and hydrology. -
Earliest Occurrence of Hydrocynus (Characiformes, Alestidae) from Eocene Continental Deposits of Méridja Hamada (Northwestern Sahara, Algeria)
Canadian Journal of Earth Sciences Earliest occurrence of Hydrocynus (Characiformes, Alestidae) from Eocene continental deposits of Méridja Hamada (northwestern Sahara, Algeria) Journal: Canadian Journal of Earth Sciences Manuscript ID cjes-2016-0006.R1 Manuscript Type: Article Date Submitted by the Author: 21-Apr-2016 Complete List of Authors: Hammouda, Sid-Ahmed; Universite Abou Bekr Belkaid Tlemcen, DepartementDraft des Sciences de la Terre et de l’Univers, Laboratoire de recherche n. 25 Murray, Alison M.; University of Alberta Divay, Julien; Royal Tyrrell Museum of Palaeontology, Preservation and Research Mebrouk, Fateh; Universite de Jijel, Departement des Sciences de la Terre et de l'Univers, F. S. N. V. Adaci, Mohammed; Universite Abou Bekr Belkaid Tlemcen, Departement des Sciences de la Terre et de l’Univers, Laboratoire de recherche n. 25 Bensalah, Mustapha; Universite Abou Bekr Belkaid Tlemcen, Departement des Sciences de la Terre et de l’Univers, Laboratoire de recherche n. 25 Keyword: <i>Hydrocynus</i>, Algeria, Eocene, Oued Méridja, Garet Dermchane https://mc06.manuscriptcentral.com/cjes-pubs Page 1 of 37 Canadian Journal of Earth Sciences 1 Earliest occurrence of Hydrocynus (Characiformes, Alestidae) from Eocene continental deposits 2 of Méridja Hamada, northwestern Sahara, Algeria 3 4 Sid-Ahmed Hammouda, Alison M. Murray, Julien D. Divay, Fateh Mebrouk, Mohammed Adaci, 5 and Mustapha Bensalah 6 7 Received 13 January 2016. 8 S. -A. Hammouda, M. Adaci and M. Bensalah . Research Laboratory No. 25, PWSMR-ELTC, 9 Department of Earth Sciences and the Universe, University of Tlemcen, Tlemcen 13000, 10 Algeria. 11 A.M. Murray . Department of BiologicalDraft Sciences, University of Alberta, Edmonton, AB, T6G 12 2E9, Canada. -
Page a (First Section 1-12)
RAP Publication 2004/16 PROCEEDINGS OF THE SECOND INTERNATIONAL SYMPOSIUM ON THE MANAGEMENT OF LARGE RIVERS FOR FISHERIES VOLUME 1 Sustaining Livelihoods and Biodiversity in the New Millennium 11–14 February 2003, Phnom Penh, Kingdom of Cambodia Edited by Robin L. Welcomme and T. Petr FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS & THE MEKONG RIVER COMMISSION, 2004 III DISCLAIMER The designations employed and the presentation of the material in this document do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations (FAO) and the Mekong River Commission (MRC) concerning the legal or constitutional status of any country, territory or sea area or concerning the delimitation of frontiers or boundaries. NOTICE OF COPYRIGHT All rights reserved Food & Agriculture Organization of the United Nations and Mekong River Commission. Reproduction and dissemination of material in this infor- mation product for educational or other non-commercial purposes are authorized without any prior written permis- sion from the copyright holders provided the source is fully acknowledged. Reproduction of material in this information product for resale or other commercial pur- poses is prohibited without written permission of the copyright holders. Application for such permission should be addressed to the Aquaculture Officer, FAO Regional Office for Asia and the Pacific, Maliwan Mansion, 39 Phra Athit Road, Bangkok 10200, Thailand. Images courtesy of the Mekong River Commission Fisheries Programme © FAO & MRC 2004 V ORIGINS of the SYMPOSIUM The Second International Symposium on the Management of Large Rivers for Fisheries was held on 11 – 14 February 2003 in Phnom Penh, Kingdom of Cambodia. -
(Characiformes: Alestidae) in Lake Turkana, Kenya, with Descriptions of Four New Species and a Redescription of A
Parasitol Res (2015) 114:4107–4120 DOI 10.1007/s00436-015-4682-x ORIGINAL PAPER Annulotrema (Monogenea: Dactylogyridae) from the gills of African tetras (Characiformes: Alestidae) in Lake Turkana, Kenya, with descriptions of four new species and a redescription of A. elongata Paperna and Thurston, 1969 Maria Lujza Kičinjaová1 & Radim Blažek1,2 & Milan Gelnar1 & Eva Řehulková1 Received: 3 May 2015 /Accepted: 21 July 2015 /Published online: 8 September 2015 # Springer-Verlag Berlin Heidelberg 2015 Abstract Four new and four previously described species of Annulotrema nili . Annulotrema pontile . Kenya . Alestidae . Annulotrema were collected from the gills of four species Alestes baremoze . Alestes dentex . Brycinus nurse . (three genera, i.e. Alestes, Hydrocynus and Brycinus)of Hydrocynus forskahlii African tetras from Lake Turkana, Kenya: Annulotrema alestesnursi Paperna, 1973 from Brycinus nurse; Annulotrema ansatum n. sp., Annulotrema besalis Řehulková, Musilová and Gelnar, 2014, Annulotrema Introduction bipatens n. sp., Annulotrema cucullatum n. sp., Annulotrema nili Paperna, 1973, and Annulotrema pontile n. sp. from Characiformes are one of the largest and most diverse compo- Hydrocynus forskahlii; and Annulotrema elongata Paperna nents of African ichthyofauna. African freshwaters harbour and Thurston, 1969 from Alestes baremoze and Alestes more than 200 characiform species currently arrayed in four dentex. A. elongata is re-described on the basis of new mate- families, from which the Alestidae (African tetras) is the most rial from A. baremoze. The sclerotized structures of the haptor speciose (Arroyave and Stiassny 2011). To date, only six and male copulatory organ of A. alestesnursi and A. elongata (Alestes, Brycinus, Hemigrammopetersius, Hydrocynus, are illustrated from their type material. H.