DOCSLIB.ORG

Chec List a Collection of Fishes from Tributaries of the Lower Kouilou

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Chec List a Collection of Fishes from Tributaries of the Lower Kouilou Check List 10(4): 900–912, 2014 © 2014 Check List and Authors Chec List ISSN 1809-127X (available at www.checklist.org.br) Journal of species lists and distribution PECIES S Kouilou, Noumbi and smaller coastal basin systems, OF RepublicA collection of theof fishes Congo, from Lower tributaries Guinea, ofwest-central the lower Africa ISTS L Gina Walsh 1*, Michiel N. Jonker 1 and Victor Mamonekene 2 1 Ecotone Freshwater Consultants, P.O Box 84, Florida, Johannesburg, 1709, Gauteng, South Africa. 2 Ecole Nationale Suprieure d’Agronomie et de Foresterie, Université Marien Ngouabi, B.P. 69, Brazzaville, Republic of Congo. * Corresponding author. E-mail: [email protected] Abstract: Noumbi River, and a series of independent coastal catchments near Madingo-Kayes in the Kouilou Province of the Republic A list of fishes is reported from right bank tributaries of the lower Kouilou River, left bank tributaries of the species distributed in 29 families were collected, three of which represent putatively undescribed species. The most diverse familiesof Congo. in Thirty-two the study sitesregion were were sampled the Cichlidae in a variety and ofthe aquatic Mormyridae. habitats This in the paper wet andprovides dry seasons a comparison of 2012. and Fifty-five update fish to earlier species lists reported for the general area and offers a baseline that may be used as a point of departure for future ichthyological assessments. DOI: 10.15560/10.4.900 Introduction to document the fauna of the lower Kouilou catchment The study region (Figure 1) is located northwest of and 103 species, of which 68 were considered as primary Pointe-Noire in the Republic of Congo and forms part of freshwater species, were reported. Here we report data for the Ogooue-Nyanga-Kouilou-Niari Freshwater ecoregion sites from a variety of habitat types that include collections in the Lower Guinean ichthyofaunal province (FEOW 2012; made in tributaries of the Kouilou, Noumbi and various Stiassny et al. 2007). More locally, the survey encompasses independent coastal basins as a temporal comparison to an area draining southeast to the Kouilou River, northwest previous collections in the area. to the Noumbi River and southwest into a series of smaller independent coastal basins. Materials and Methods Sites and habitat types The list of species reported in this paper is based on secondRivers in inApril, the regionwith little experience or no rain a bimodal falling between flood regime, June collections made in 2012 during wet (May) and dry (July/ andwhere August. the first The flood largest period river occurs draining in November the region and is the August) season surveys. Sampling sites were distributed Kouilou which becomes a low gradient system below over a variety of lentic and lotic habitat types, namely: Sounda Gorge, meandering through dense forest before forest streams (sites 1–11), coastal savannah streams emptying into the Atlantic Ocean. The aquatic ecosystems (sites 12–14), rivers (sites 15–16), swamp forests (sites 17 of this ecoregion are considered to be notably rich in –18), savannah wetlands (sites 19–20), lakes (sites 21–30), freshwater species that show high levels of endemicity and estuaries (site 31) and mangroves (site 32) (Figure 1 and considerable habitat heterogeneity, encompassing a wide Table 1). Photographs, written descriptions and geospatial range of lentic and lotic habitats (Brooks et al. 2011). data were collected for each site. For the purpose of this Many systems in the ecoregion remain to be sampled, study, ichthyological survey results are presented per and this is particularly the case for the small coastal basins aquatic habitat type (Table 2) where general habitat types (Daget and Stauch 1968; Teugels et al. 1991; Mamonekene are divided based on the characteristics below (Figure 2). and Teugels 1993; FEOW 2012). Additionally, very little A comparison of the current data per basin, to data from information is available on the life history, distribution the following sources is provided in Table 3: Daget and and ecology of freshwater species in this entire region Stauch (1968), Teugels et al. (1991) and Stiassny et al. (Mamonekene and Stiassny, 2012). Whilst ichthyological (2007). information for the Republic of Congo is generally Forest streams refer to streams in the central and fragmented and sparse, collections in the lower Kouilou northern section of the study area which do not exhibit River were made in the early 1960’s (Daget 1961) and a clear distinction between riparian vegetation and were later reported by Daget and Stauch (1968). That surrounding forest vegetation (Figure 2A). Forest streams study reported 61 species from Sounda Gorge to the are generally characterised by steep gradients and partially Kouilou estuary some 75 km downstream (Figure 1). A open to closed canopies. The streams are shallow (< 1 m), more recent study was undertaken by Teugels et al. (1991) relatively narrow (1–10 m) with substrates dominated 900 Walsh et al. | Fishes from Lower Guinea ichthyofaunal province, Congo. by woody debris, sand, aquatic and marginal vegetation. The fringing forest consists of the dominant tree species They have an open canopy and are dominated by grasses, Dacryodes pubescens, Daniella soyauxii, Irvingia grandifolia sedgesby slow andflowing, forbs. shallow Savannah waters wetlands without cover woody a vegetation.large area and Caesalpiniaceae sp. Coastal savannah streams occur in the southern section active channels (1–5 m). of the study area in the savannah region and drain coastal withLakes disperse are standingflows (> 100water m), bodies but have located relatively throughout narrow catchments (Figure 2B). These streams have a distinct the landscape with a large variability in the surrounding channel and riparian fringe, moderate depth (< 2 m) and vegetation (e.g., Figure 2F). They are relatively deep (3–8 width (1–10 m), and a reduced gradient. Coastal savannah m) and have a water surface width of 100 m or more with streams have partially open to open canopies and are clear waters and open canopies. Estuaries (Figure 2G) and mostly sandy with marginal vegetation as dominant cover. mangrove (Figure 2H) sites were situated in the sublittoral The sites were fringed by a forest-wetland-grassland zone. The latter contained saline woodland elements in mosaic. their adjacent aquatic zones. Rivers are major drainages consisting of an open Sampling and Collection zone (Figure 2C). They are deep (> 2 m) and wide (> 10 m)canopy, with a moderatedefined channelwater velocity. and an Sampled undefined river riparian sites in habitat type and accessibility. Several sampling techniques wereFish employed, sampling including efforts were cast netssite specific(Figure 3A),and basedfyke nets on suchthis study as Kigelia consisted africana, of affluents Entada mannii, of the Kouilou Mucuna River flagellipes with andseasonally Raphia floodedhookeri. riparianIncreased forest inundation characterised during thespecies wet (Figure 3F),3B), hook monofilament and line (Figure gill nests 3G) and(Figure observation 3C), seine of nets (Figure 3D), electrofishing (FigureFishes were3E), collecteddip nets species such as the stilt rooted Xylopia rubescens, Aman trobilaceaseason creates and Ctenolophonflooded forests englerianus in the region. comprised of (AFS/AIFRB/ASIHlocal fishermen’s catch 2003). (Figure Taxonomic 3H). nomenclature follows Swamp forests are low energy systems where the Eschmeyeraccording to (2010). the guidelines Some speciesfor the use were of fishesobserved in research in the water table is near to or at the surface (Figure 2D). They field but not collected, and were only reported if a strong Swampare characterised forests have by undefineda low gradient channels, with closed water canopies surface Departmentpositive identification of the American could be Museum made ofof theNatural specimen History in widthand slow ranging flowing from water 1–10 running m and througha macro-channel dense vegetation. width of (AMNH)the field. inAll Newvouchers York, were USA. deposited Data are inaccessible the Ichthyology online > 100 m. Leaf litter and debris are the dominant substrate at the AMNH vertebrate zoology database http://sci- in these systems. Similar to swamp forests, savannah web-001.amnh.org/db/emuwebamnh/. Tissue samples wetlands are low energy systems where the water table is for DNA analysis were taken for vouchers. shallow (Figure 2E). Savannah wetlands are characterised collected and exported with permission of the Congolese All fishes were Figure 1. Location of study sites in the Kouilou, Noumbi and independent coastal basins, Lower Guinea ichthyofaunal province, Republic of the Congo. 901 Walsh et al. | Fishes from Lower Guinea ichthyofaunal province, Congo. Table 1. Site data showing habitat type and dominant cover type. S = Sand; C = Cobbles; LL = Leaf Litter; M = Mud; MV = Marginal Vegetation; AV = Aquatic Vegetation; PM = Peat Mats. SITES Y X HABITAT TYPE CATCHMENT DESCRIPTION COVER VEGETATION 1 -4.03363 11.69338 Forest Stream Noumbi Dongo River S, C, MV Forest 2 -4.04931 11.71534 Forest Stream Noumbi Tributary of Bondo River S, MV Degraded forest 3 -4.11511 11.68185 Forest Stream Noumbi Louvandji River S, MV Forest 4 -4.09574 11.66641 Forest Stream Noumbi Tributary Bondo River S, LL Forest 5 -4.12930 11.71724 Forest Stream Kouilou Headwaters of Bilondou River S, M, LL Degraded forest 6 -4.14549 11.71325 Forest Stream Kouilou Headwaters of Mbosso River M, LL Degraded forest 7 -4.18616 11.66600 Forest Stream
Load more

Recommended publications
  • Article Evolutionary Dynamics of the OR Gene Repertoire in Teleost Fishes
    bioRxiv preprint doi: https://doi.org/10.1101/2021.03.09.434524; this version posted March 10, 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. Article Evolutionary dynamics of the OR gene repertoire in teleost fishes: evidence of an association with changes in olfactory epithelium shape Maxime Policarpo1, Katherine E Bemis2, James C Tyler3, Cushla J Metcalfe4, Patrick Laurenti5, Jean-Christophe Sandoz1, Sylvie Rétaux6 and Didier Casane*,1,7 1 Université Paris-Saclay, CNRS, IRD, UMR Évolution, Génomes, Comportement et Écologie, 91198, Gif-sur-Yvette, France. 2 NOAA National Systematics Laboratory, National Museum of Natural History, Smithsonian Institution, Washington, D.C. 20560, U.S.A. 3Department of Paleobiology, National Museum of Natural History, Smithsonian Institution, Washington, D.C., 20560, U.S.A. 4 Independent Researcher, PO Box 21, Nambour QLD 4560, Australia. 5 Université de Paris, Laboratoire Interdisciplinaire des Energies de Demain, Paris, France 6 Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay, 91190, Gif-sur- Yvette, France. 7 Université de Paris, UFR Sciences du Vivant, F-75013 Paris, France. * Corresponding author: e-mail: [email protected]. !1 bioRxiv preprint doi: https://doi.org/10.1101/2021.03.09.434524; this version posted March 10, 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. Abstract Teleost fishes perceive their environment through a range of sensory modalities, among which olfaction often plays an important role.
    [Show full text]
  • A New Genus of Miniature Cynolebiasine from the Atlantic
    64 (1): 23 – 33 © Senckenberg Gesellschaft für Naturforschung, 2014. 16.5.2014 A new genus of miniature cynolebiasine from the Atlantic Forest and alternative biogeographical explanations for seasonal killifish distribution patterns in South America (Cyprinodontiformes: Rivulidae) Wilson J. E. M. Costa Laboratório de Sistemática e Evolução de Peixes Teleósteos, Instituto de Biologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68049, CEP 21944 – 970, Rio de Janeiro, Brasil; wcosta(at)acd.ufrj.br Accepted 21.ii.2014. Published online at www.senckenberg.de/vertebrate-zoology on 30.iv.2014. Abstract The analysis of 78 morphological characters for 16 species representing all the lineages of the tribe Cynopoecilini and three out-groups, indicates that the incertae sedis miniature species ‘Leptolebias’ leitaoi Cruz & Peixoto is the sister group of a clade comprising the genera Leptolebias, Campellolebias, and Cynopoecilus, consequently recognised as the only member of a new genus. Mucurilebias gen. nov. is diagnosed by seven autapomorphies: eye occupying great part of head side, low number of caudal-fin rays (21), distal portion of epural much broader than distal portion of parhypural, an oblique red bar through opercle in both sexes, isthmus bright red in males, a white stripe on the distal margin of the dorsal fin in males, and a red stripe on the distal margin of the anal fin in males.Mucurilebias leitaoi is an endangered seasonal species endemic to the Mucuri river basin. The biogeographical analysis of genera of the subfamily Cynolebiasinae using a dispersal-vicariance, event-based parsimony approach indicates that distribution of South American killifishes may be broadly shaped by dispersal events.
    [Show full text]
  • Deterministic Shifts in Molecular Evolution Correlate with Convergence to Annualism in Killifishes
    bioRxiv preprint doi: https://doi.org/10.1101/2021.08.09.455723; this version posted August 10, 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. Deterministic shifts in molecular evolution correlate with convergence to annualism in killifishes Andrew W. Thompson1,2, Amanda C. Black3, Yu Huang4,5,6 Qiong Shi4,5 Andrew I. Furness7, Ingo, Braasch1,2, Federico G. Hoffmann3, and Guillermo Ortí6 1Department of Integrative Biology, Michigan State University, East Lansing, Michigan 48823, USA. 2Ecology, Evolution & Behavior Program, Michigan State University, East Lansing, MI, USA. 3Department of Biochemistry, Molecular Biology, Entomology, & Plant Pathology, Mississippi State University, Starkville, MS 39759, USA. 4Shenzhen Key Lab of Marine Genomics, Guangdong Provincial Key Lab of Molecular Breeding in Marine Economic Animals, BGI Marine, Shenzhen 518083, China. 5BGI Education Center, University of Chinese Academy of Sciences, Shenzhen 518083, China. 6Department of Biological Sciences, The George Washington University, Washington, DC 20052, USA. 7Department of Biological and Marine Sciences, University of Hull, UK. Corresponding author: Andrew W. Thompson, [email protected] bioRxiv preprint doi: https://doi.org/10.1101/2021.08.09.455723; this version posted August 10, 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. Abstract: The repeated evolution of novel life histories correlating with ecological variables offer opportunities to test scenarios of convergence and determinism in genetic, developmental, and metabolic features. Here we leverage the diversity of aplocheiloid killifishes, a clade of teleost fishes that contains over 750 species on three continents.
    [Show full text]
  • The Eastern Pacific Species of B a T H Y G O B I U S ( P E Rciformes
    Rev. Biol. Trop. 49 Supl. 1: 141-156, 2001 The Eastern Pacific species of Ba t h y g o b i u s (P e r ciformes : Gobiidae) Peter J. Miller & Sergio Stefanni School of Biological Sciences, The University, Bristol, BS8 1UG, UK. [fax +44 (0) 117 925 7374; e-mail: [email protected]] Received: 17-III-2000 Corrected: 23-XI-2000 Accepted: 8-XII-2000 Abstract: The circumtropical gobiid genus Bathygobius Bleeker is defined and three Eastern Pacific species are redescribed, with first dorsal fin pattern and postorbital blotches being shown to be additional characters of diagnostic value. Two mainland species are recognised, the Mexican-Panamanian B. ramosus Ginsburg 1947 and the Panamanian B. andrei (Sauvage 1880). B. ramosus is now reported from Clarión Island, Revillagigedos, and also from Cocos Island. Meristic variation of ramosus is tabulated for local populations and PCAanalysis of their morphometry suggests regional differentiation in this species, with Tres Marias and Revillagigedos populations clustering away from mainland and Mon- tuosa material. An insular species, B. lineatus (Jenyns 1842) from the Galapagos is defined, with B. arundelii (Garman 1899) from Clipperton Island and B. l. lupinus Ginsburg 1947 from Lobos de Afuera, off Peru, placed as nominal sub- species of lineatus. This species resembles the Indo-west Pacific B. fuscus and Atlantic basin B. soporator more closely than it does ramosus and andrei and may be the product of transpacific dispersal. A similar origin for B. ramosus is dis- cussed but it seems more likely that both B. ramosus and B. andrei have Caribbean sister species.
    [Show full text]
  • Evolutionary Genomics of a Plastic Life History Trait: Galaxias Maculatus Amphidromous and Resident Populations
    EVOLUTIONARY GENOMICS OF A PLASTIC LIFE HISTORY TRAIT: GALAXIAS MACULATUS AMPHIDROMOUS AND RESIDENT POPULATIONS by María Lisette Delgado Aquije Submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy at Dalhousie University Halifax, Nova Scotia August 2021 Dalhousie University is located in Mi'kma'ki, the ancestral and unceded territory of the Mi'kmaq. We are all Treaty people. © Copyright by María Lisette Delgado Aquije, 2021 I dedicate this work to my parents, María and José, my brothers JR and Eduardo for their unconditional love and support and for always encouraging me to pursue my dreams, and to my grandparents Victoria, Estela, Jesús, and Pepe whose example of perseverance and hard work allowed me to reach this point. ii TABLE OF CONTENTS LIST OF TABLES ............................................................................................................ vii LIST OF FIGURES ........................................................................................................... ix ABSTRACT ...................................................................................................................... xii LIST OF ABBREVIATION USED ................................................................................ xiii ACKNOWLEDGMENTS ................................................................................................ xv CHAPTER 1. INTRODUCTION ....................................................................................... 1 1.1 Galaxias maculatus ..................................................................................................
    [Show full text]
  • 110 Biological Characteristics of the Schlegel's Goby, Porogobius
    FAO REGIONALFAO RegionalOFFICE OfficeFOR for AFRICAAfrica Biological characteristics of the Schlegel’s goby, Porogobius schlegelii, in the mangrove – nipa ecosystem southeast of Niger delta, Nigeria Mfon T. Udo1 Summary A study of some aspects of the biological characteristics of Porogobius schlegelii [Gobiidae], in two different estuarine swamp creeks within Qua Iboe River estuary, Nigeria, was carried out between January and December 2004, to determine impact of replacement of mangrove by nipa palms. A total of 729 specimens of the fish were examined; out of which 50.2 % were mangrove sample [size 3.6–11.8 cm TL] and 49.8% nipa collections [size 3.7–11.4 cm TL]. In this study it was found that Schlegel’s goby fish, Porogobius schlegelii from the mangrove creek area of Nigeria did not ingest the phytoplankton species Biddulphia spp., the crustacean and mollusc Tympanotonus fuscatus, whereas the algae Gyrosigma spp. and Navicula spp., dipteran larvae and insect remains were absent from dietaries eaten by the nipa creek counterparts. Despite the similarity in the rank-order of the food objects [p < 0.002], there was dissimilarity in the proportions of the food objects. Feeding intensity was higher in nipa vis-à-vis the mangrove creek area. Bi-sexuality existed in sex ratio between the creeks but with females’ dominance in each creek. Males and females from the mangrove creek increased in body weight over those of the nipa. The mangrove creek specimens were higher in the reproductive (gonadosomatic and condition indices) investment. Mean fecundity of 8,466 and 10,164 eggs from the mangrove and nipa creeks respectively, were not statistically different.
    [Show full text]
  • The Neotropical Genus Austrolebias: an Emerging Model of Annual Killifishes Nibia Berois1, Maria J
    lopmen ve ta e l B D io & l l o l g e y C Cell & Developmental Biology Berois, et al., Cell Dev Biol 2014, 3:2 ISSN: 2168-9296 DOI: 10.4172/2168-9296.1000136 Review Article Open Access The Neotropical Genus Austrolebias: An Emerging Model of Annual Killifishes Nibia Berois1, Maria J. Arezo1 and Rafael O. de Sá2* 1Departamento de Biologia Celular y Molecular, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay 2Department of Biology, University of Richmond, Richmond, Virginia, USA *Corresponding author: Rafael O. de Sá, Department of Biology, University of Richmond, Richmond, Virginia, USA, Tel: 804-2898542; Fax: 804-289-8233; E-mail: [email protected] Rec date: Apr 17, 2014; Acc date: May 24, 2014; Pub date: May 27, 2014 Copyright: © 2014 Rafael O. de Sá, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Abstract Annual fishes are found in both Africa and South America occupying ephemeral ponds that dried seasonally. Neotropical annual fishes are members of the family Rivulidae that consist of both annual and non-annual fishes. Annual species are characterized by a prolonged embryonic development and a relatively short adult life. Males and females show striking sexual dimorphisms, complex courtship, and mating behaviors. The prolonged embryonic stage has several traits including embryos that are resistant to desiccation and undergo up to three reversible developmental arrests until hatching. These unique developmental adaptations are closely related to the annual fish life cycle and are the key to the survival of the species.
    [Show full text]
  • 01 Astyanax Final Version.Indd
    Vertebrate Zoology 59 (1) 2009 31 31 – 40 © Museum für Tierkunde Dresden, ISSN 1864-5755, 29.05.2009 Osteology of the African annual killifi sh genus Callopanchax (Teleostei: Cyprinodontiformes: Nothobranchiidae) and phylogenetic implications WILSON J. E. M. COSTA Laboratório de Ictiologia Geral e Aplicada, Departamento de Zoologia, Universidade Federal do Rio de Janeiro, Caixa Postal 68049, CEP 21944-970, Rio de Janeiro, Brazil E-mail: wcosta(at)acd.ufrj.br Received on May 5, 2008, accepted on October 6, 2008. Published online at www.vertebrate-zoology.de on May 15, 2009. > Abstract Osteological structures of Callopanchax are fi rst described and illustrated. Twenty-six characters derived from comparisons of osseous structures among some aplocheiloid fi shes provided evidence supporting hypotheses of relationships among three western African genera (Callopanchax, Scriptaphyosemion and Archiaphyosemion), as proposed in recent molecular analysis. The clade comprising Callopanchax, Scriptaphyosemion and Archiaphyosemion is supported by a laterally displaced antero-proximal process of the fourth ceratobranchial. The sister group relationship between Callopanchax and Scriptaphyosemion is supported by a constriction on the posterior portion of the parasphenoid, an anterior expansion of the hyomandibula, a rectangular basihyal cartilage, an anterior pointed process on the fi rst vertebra, and a long ventrally directed hemal prezygapophysis on the preural centrum 2. Monophyly of Callopanchax is supported by a convexity on the dorsal margin of the opercle, a long interarcual cartilage, and long neural prezygapophyses on the anterior caudal vertebrae. > Key words Killifi shes, Callopanchax, Africa, Osteology, Annual fi shes. Introduction COSTA, 1998a, 2004) and among genera and species of the Rivulidae (e. g., COSTA, 1998b, 2005, 2006a, b).
    [Show full text]
  • PAT Dec 2019
    PAT December, 2019; 15 (2): 38-48 ISSN: 0794-5213 Online copy available at www.patnsukjournal.net/currentissue Publication of Nasarawa State University, Keffi The Ornamental Fish Fauna Assemblage in the Upper Reaches of New Calabar River in Rivers State, Nigeria. Ibim, A. T*. and Gogo, O. O. Department of Fisheries, Faculty of Agriculture, University of Port Harcourt, Email: [email protected] Abstract A thirteen week investigation was conducted to document the ornamental fish assemblage of the upper reaches of New Calabar River, Rivers State. Four sample stations along the river’s course were selected. Landed fish species were collected from local fishers. Fish composition and abundance was estimated by standard methods. Results of composition revealed forty one (41) species belonging to thirty five (35) genera, in twenty five (25) families. Family composition revealed among the twenty five (25) ornamental families, the Cichlidae was most dominant with nine (9) species from five (5) genera. Species composition revealed Malapterurus electricus (Malapterurudae) as most dominant species. Species richness was highest at Station D (3.95), slightly lower in Stations B (2.91) and C (2.60), and least in Station A (1.84). Family relative abundance revealed Cichlidae (20.16%) as the most abundant family, followed by Malapterurudae (9.91%), Alestidae (8.81%), and few others. However, several families recorded low abundance, with Mastacemblidae the least (0.04%). Species abundance also, revealed Malapterurus electricus as most abundant (9.99%), followed by Erpetocheithys calabaricus (7.78%), Brycinus longipinnis (7.35%), before Tilapia zilli (7.22%), and Aethiomastacemblus nigromarginatus the least abundant (0.02%).
    [Show full text]
  • Three New Endemic Aphyosemion Species (Cyprinodontiformes: Nothobranchiidae) from the Massif Du Chaillu in the Upper Louessé River System, Republic of the Congo
    See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/321875026 Three new endemic Aphyosemion species (Cyprinodontiformes: Nothobranchiidae) from the Massif du Chaillu in the upper Louessé River system, Republic of the Congo Article in Zootaxa · January 2018 DOI: 10.11646/zootaxa.4369.1.3 CITATIONS READS 0 587 6 authors, including: Jouke van der Zee Gina Walsh Hogeschool Arnhem and Nijmegen Flora Fauna & Man Ecological Services Ltd. 18 PUBLICATIONS 29 CITATIONS 9 PUBLICATIONS 48 CITATIONS SEE PROFILE SEE PROFILE Valdie Nina Boukaka Mikembi Michiel Nell Jonker Institut National Recherche en Sciences Exactes et Naturelle Biotech Innovation Research Development & Consulting 5 PUBLICATIONS 0 CITATIONS 6 PUBLICATIONS 0 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Effects of microplastics and pharmaceuticals on trophic interactions View project Functional Ecology of Afrotropical Streams in the Republic of Congo, west-central Africa View project All content following this page was uploaded by Gina Walsh on 17 September 2018. The user has requested enhancement of the downloaded file. Zootaxa 4369 (1): 063–092 ISSN 1175-5326 (print edition) http://www.mapress.com/j/zt/ Article ZOOTAXA Copyright © 2018 Magnolia Press ISSN 1175-5334 (online edition) https://doi.org/10.11646/zootaxa.4369.1.3 http://zoobank.org/urn:lsid:zoobank.org:pub:946093ED-9309-4D85-A473-32566D631B19 Three new endemic Aphyosemion species (Cyprinodontiformes: Nothobranchiidae) from the Massif du Chaillu in the upper Louessé River system, Republic of the Congo JOUKE R. VAN DER ZEE1, GINA WALSH2,3,8, VALDIE N.
    [Show full text]
  • (Monogenea: Dactylogyridae) and a Redescription of D
    Journal of Helminthology (2018) 92, 228–243 doi:10.1017/S0022149X17000256 © Cambridge University Press 2017 Morphology and molecular characterization of Demidospermus spirophallus n. sp., D. prolixus n. sp. (Monogenea: Dactylogyridae) and a redescription of D. anus in siluriform catfish from Brazil L. Franceschini1*, A.C. Zago1, M.I. Müller1, C.J. Francisco1, R.M. Takemoto2 and R.J. da Silva1 1São Paulo State University (Unesp), Institute of Biosciences, Botucatu, Brazil, CEP 18618-689: 2State University of Maringá (UEM), Limnology, Ichthyology and Aquaculture Research Center (Nupélia), Maringá, Brazil, CEP 87020-900 (Received 29 September 2016; Accepted 26 February 2017; First published online 6 April 2017) Abstract The present study describes Demidospermus spirophallus n. sp. and Demidosper- mus prolixus n. sp. (Monogenea, Dactylogyridae) from the siluriform catfish Loricaria prolixa Isbrücker & Nijssen, 1978 (Siluriformes, Loricariidae) from the state of São Paulo, Brazil, supported by morphological and molecular data. In add- ition, notes on the circumscription of the genus with a redescription of Demisdospermus anus are presented. Demidospermus spirophallus n. sp. differed from other congeners mainly because of the morphology of the male copulatory organ (MCO), which exhibited 2½ counterclockwise rings, a tubular accessory piece with one bifurcated end and a weakly sclerotized vagina with sinistral open- ing. Demidospermus prolixus n. sp. presents a counterclockwise-coiled MCO with 1½ rings, an ovate base, a non-articulated groove-like accessory piece serving as an MCO guide, two different hook shapes, inconspicuous tegumental annulations, a non-sclerotized vagina with sinistral opening and the absence of eyes or acces- sory eyespots. The present study provides, for the first time, molecular character- ization data using the partial ribosomal gene (28S) of two new species of Demidospermus from Brazil (D.
    [Show full text]
  • Out of Lake Tanganyika: Endemic Lake Fishes Inhabit Rapids of the Lukuga River
    355 Ichthyol. Explor. Freshwaters, Vol. 22, No. 4, pp. 355-376, 5 figs., 3 tabs., December 2011 © 2011 by Verlag Dr. Friedrich Pfeil, München, Germany – ISSN 0936-9902 Out of Lake Tanganyika: endemic lake fishes inhabit rapids of the Lukuga River Sven O. Kullander* and Tyson R. Roberts** The Lukuga River is a large permanent river intermittently serving as the only effluent of Lake Tanganyika. For at least the first one hundred km its water is almost pure lake water. Seventy-seven species of fish were collected from six localities along the Lukuga River. Species of cichlids, cyprinids, and clupeids otherwise known only from Lake Tanganyika were identified from rapids in the Lukuga River at Niemba, 100 km from the lake, whereas downstream localities represent a Congo River fish fauna. Cichlid species from Niemba include special- ized algal browsers that also occur in the lake (Simochromis babaulti, S. diagramma) and one invertebrate picker representing a new species of a genus (Tanganicodus) otherwise only known from the lake. Other fish species from Niemba include an abundant species of clupeid, Stolothrissa tanganicae, otherwise only known from Lake Tangan- yika that has a pelagic mode of life in the lake. These species demonstrate that their adaptations are not neces- sarily dependent upon the lake habitat. Other endemic taxa occurring at Niemba are known to frequent vegetat- ed shore habitats or river mouths similar to the conditions at the entrance of the Lukuga, viz. Chelaethiops minutus (Cyprinidae), Lates mariae (Latidae), Mastacembelus cunningtoni (Mastacembelidae), Astatotilapia burtoni, Ctenochromis horei, Telmatochromis dhonti, and Tylochromis polylepis (Cichlidae). The Lukuga frequently did not serve as an ef- fluent due to weed masses and sand bars building up at the exit, and low water levels of Lake Tanganyika.
    [Show full text]