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Biodiversidad Final.Pmd
Gayana 70(1): 100-113, 2006 ISSN 0717-652X ESTADO DE CONOCIMIENTO DE LOS PECES DULCEACUICOLAS DE CHILE CURRENT STATE OF KNOWLEDGE OF FRESHWATER FISHES OF CHILE Evelyn Habit1, Brian Dyer2 & Irma Vila3 1Unidad de Sistemas Acuáticos, Centro de Ciencias Ambientales EULA-Chile, Universidad de Concepción, Casilla 160-C, Concepción, Chile. [email protected] 2Escuela de Recursos Naturales, Universidad del Mar, Amunátegui 1838, Recreo, Viña del Mar, Chile. [email protected] 3Laboratorio de Limnología, Depto. Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile. [email protected] RESUMEN La ictiofauna nativa de los sistemas límnicos de Chile se compone de 11 familias, 17 géneros y alrededor de 44 especies, incluyendo dos lampreas. De éstas, 81% son endémicas de la provincia biogeográfica chilena y 40% se encuentran clasificadas en peligro de extinción. Los grupos más representados corresponden a los órdenes Siluriformes (11 especies), Osmeriformes (9 especies) y Atheriniformes (7 especies). También están representados en Chile los ciclóstomos Petromyzontiformes (2 especies), y los teleósteos Characiformes (4 especies), Cyprinodontiformes (6 especies), Perciformes (4 especies) y Mugilifromes (1). Latitudinalmente, la mayor riqueza de especies ocurre en la zona centro-sur de la provincia Chilena, en tanto que los extremos norte y sur son de baja riqueza específica. Dado su origen, porcentaje de endemismo y retención de caracteres primitivos, este conjunto ictiofaunístico es de alto valor biogeográfico y de conservación. Existen sin embargo importantes vacíos de conocimiento sobre su sistemática, distribución y biología. PALABRAS CLAVES: Peces, sistemas dulceacuícolas, Chile. ABSTRACT The Chilean native freshwater ichthyofauna is composed of 11 families, 17 genera and about 44 species, including two lampreys. -
Documento Completo Descargar Archivo
Publicaciones científicas del Dr. Raúl A. Ringuelet Zoogeografía y ecología de los peces de aguas continentales de la Argentina y consideraciones sobre las áreas ictiológicas de América del Sur Ecosur, 2(3): 1-122, 1975 Contribución Científica N° 52 al Instituto de Limnología Versión electrónica por: Catalina Julia Saravia (CIC) Instituto de Limnología “Dr. Raúl A. Ringuelet” Enero de 2004 1 Zoogeografía y ecología de los peces de aguas continentales de la Argentina y consideraciones sobre las áreas ictiológicas de América del Sur RAÚL A. RINGUELET SUMMARY: The zoogeography and ecology of fresh water fishes from Argentina and comments on ichthyogeography of South America. This study comprises a critical review of relevant literature on the fish fauna, genocentres, means of dispersal, barriers, ecological groups, coactions, and ecological causality of distribution, including an analysis of allotopic species in the lame lake or pond, the application of indexes of diversity of severa¡ biotopes and comments on historical factors. Its wide scope allows to clarify several aspects of South American Ichthyogeography. The location of Argentina ichthyological fauna according to the above mentioned distributional scheme as well as its relation with the most important hydrography systems are also provided, followed by additional information on its distribution in the Argentine Republic, including an analysis through the application of Simpson's similitude test in several localities. SINOPSIS I. Introducción II. Las hipótesis paleogeográficas de Hermann von Ihering III. La ictiogeografía de Carl H. Eigenmann IV. Estudios de Emiliano J. Mac Donagh sobre distribución de peces argentinos de agua dulce V. El esquema de Pozzi según el patrón hidrográfico actual VI. -
Contributions to the Skeletal Anatomy of Freshwater Stingrays (Chondrichthyes, Myliobatiformes): 1
Zoosyst. Evol. 88 (2) 2012, 145–158 / DOI 10.1002/zoos.201200013 Contributions to the skeletal anatomy of freshwater stingrays (Chondrichthyes, Myliobatiformes): 1. Morphology of male Potamotrygon motoro from South America Rica Stepanek*,1 and Jrgen Kriwet University of Vienna, Department of Paleontology, Geozentrum (UZA II), Althanstr. 14, 1090 Vienna, Austria Abstract Received 8 August 2011 The skeletal anatomy of most if not all freshwater stingrays still is insufficiently known Accepted 17 January 2012 due to the lack of detailed morphological studies. Here we describe the morphology of Published 28 September 2012 an adult male specimen of Potamotrygon motoro to form the basis for further studies into the morphology of freshwater stingrays and to identify potential skeletal features for analyzing their evolutionary history. Potamotrygon is a member of Myliobatiformes and forms together with Heliotrygon, Paratrygon and Plesiotrygon the Potamotrygoni- dae. Potamotrygonids are exceptional because they are the only South American ba- toids, which are obligate freshwater rays. The knowledge about their skeletal anatomy Key Words still is very insufficient despite numerous studies of freshwater stingrays. These studies, however, mostly consider only external features (e.g., colouration patterns) or selected Batomorphii skeletal structures. To gain a better understanding of evolutionary traits within sting- Potamotrygonidae rays, detailed anatomical analyses are urgently needed. Here, we present the first de- Taxonomy tailed anatomical account of a male Potamotrygon motoro specimen, which forms the Skeletal morphology basis of prospective anatomical studies of potamotrygonids. Introduction with the radiation of mammals. Living elasmobranchs are thus the result of a long evolutionary history. Neoselachians include all living sharks, rays, and Some of the most astonishing and unprecedented ex- skates, and their fossil relatives. -
South Bay 2007
Annual Receiving Waters Monitoring Report for the South Bay Ocean Outfall (South Bay Water Reclamation Plant) 2007 City of San Diego Ocean Monitoring Program Metropolitan Wastewater Department Environmental Monitoring and Technical Services Division THE CITY OF SAN DIEGO MAYOR JERRY SANDERS June 30, 2008 Mr. John Robertus Executive Officer Regional Water Quality Control Board San Diego Region 917 4 Sky Park Court, Suite 100 San Diego, CA 92123 Attention: POTW Compliance Unit Dear Sir: Enclosed is the 2008 Annual Receiving Waters Monitoring Report for NPDES Permit No. CA0109045, Order No. 2006-067, for the City ofSan Diego South Bay Water Reclamation Plant (SBWRP) discharge through the South Bay Ocean Outfall. This report contains data summaries and statistical analyses for the various portions of the ocean monitoring program, including oceanographic conditions, microbiology, sediment characteristics, macro benthic communities, demersal fishes and megabenthic invertebrates, and bioaccumulation of contaminants in fish tissues. These data are also presented in the International Boundary and Water Commission's annual report for discharge from the International Wastewater Treatment Plant (NPDES Permit No. CA0108928, OrderNo. 96-50). I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry ofthe person or persons who manage the system, or those persons directly responsible for gathering the information, I certify that the information submitted is, to the best ofmy knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment for knowing violations. -
Redescription of Cheirodon Ibicuhiensis Eigenmann, 1915 (Characiformes: Cheirodontinae), with Notes on Its Distribution in Argentina
| REDESCRIPTION OF Cheirodon ibicuhiensis EIGENMANN, 1915 (CHARACIFORMES: CHEIRODONTINAE), WITH NOTES ON ITS DISTRIBUTION IN ARGENTINA JULIA ManTINIan1, AmalIA MIQUElaREna1, 2 & Pablo SCARaboTTI3 1 Sección Ictiología, División Zoología Vertebrados, Museo de La Plata (MLP), Paseo del Bosque s/n, 1900, La Plata, Bs. As., Argentina. 2 Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA-CONICET), CC 712, 1900, La Plata, Bs. As., Argentina. 3 Instituto Nacional de Limnología (INALI-CONICET-UNL), Ciudad Universitaria, Pje. El Pozo s/n, 3000, Santa Fe, Argentina. E-mail: [email protected] ABSTRACT Cheirodon ibicuhiensis Eigenmann, 1915, is redescribed including new anatomical data based on material collected at sixteen localities in the Lower Paraná and Lower Uruguay River basins in Argentina. This is the first report of the species with accurate localities for this country. C. ibicuhiensis is distinguished from C. interruptus, a morphologically similar and geographically close species, by the following combination of characters: body relatively deep (28.2-39.8% SL) and compressed; snout to anal-fin origin (55-61.7% SL); anal-fin base length (22-31% SL); peduncle depth (8.8-12.6% SL); iv-v, 19-23 anal-fin rays; 17-22 ventral procurrent caudal-fin rays; maxilla with 1-2 teeth; 33-36 scales in the longitudinal series; 6-11 perforated scales on the lateral line. Ecological notes on this species are also provided. Key words: Ostariophysi, Cheirodon, taxonomy, distribution. NATURA NEOTROPICALIS 39 | 1 y 2 | 2008 ISSN 0329-2177 4 | REDESCRIPCIÓN DE Cheirodon ibicuhiensis EIGENMANN, 1915 (CHARACIFORMES: CHEIRODONTINAE), CON NOTAS SOBRE SU DISTRIBUCIÓN EN ARGENTINA JULIA ERIKA ManTINIan1, AmalIA MARía MIQUElaREna1, 2 y Pablo AUGUSTO SCARaboTTI3 1 Sección Ictiología, División Zoología Vertebrados, Museo de La Plata (MLP), Paseo del Bosque s/n, 1900, La Plata, Bs. -
Redalyc.Hábitos Alimentarios De La Raya Urobatis Halleri (Cooper, 1863)
Ciencias Marinas ISSN: 0185-3880 [email protected] Universidad Autónoma de Baja California México Valadez González, Carmen; Aguilar Palomino, Bernabé; Hernández Vázquez, Salvador Hábitos alimentarios de la raya Urobatis halleri (Cooper, 1863) (Chondrichthyes: urolophidae) capturada en la plataforma continental de Jalisco y Colima, México Ciencias Marinas, vol. 27, núm. 1, marzo, 2001, pp. 91-104 Universidad Autónoma de Baja California Ensenada, México Disponible en: http://www.redalyc.org/articulo.oa?id=48027106 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto Ciencias Marinas (2001), 27(1): 91–104 HÁBITOS ALIMENTARIOS DE LA RAYA Urobatis halleri (COOPER, 1863) (CHONDRICHTHYES: UROLOPHIDAE) CAPTURADA EN LA PLATAFORMA CONTINENTAL DE JALISCO Y COLIMA, MÉXICO FEEDING HABITS OF THE ROUND STINGRAY Urobatis halleri (COOPER, 1863) (CHONDRICHTHYES: UROLOPHIDAE) FROM THE CONTINENTAL SHELF OF JALISCO AND COLIMA, MEXICO Carmen Valadez-González* Bernabé Aguilar-Palomino Salvador Hernández-Vázquez Centro de Ecología Costera Centro Universitario de la Costa Sur Universidad de Guadalajara Gómez Farias No. 82 San Patricio-Melaque Cihuatlán, C.P. 48980, Jalisco, México * E-mail: [email protected] Recibido en junio de 2000; aceptado en octubre de 2000 RESUMEN Se analizaron los estómagos de 295 rayas de la especie Urobatis halleri (Urolophus halleri), capturadas en la plataforma continental de Jalisco y Colima (México), en muestreos mensuales de septiembre de 1997 a agosto de 1998. De acuerdo con el índice de importancia relativa, esta especie se alimentó principalmente de invertebrados bentónicos, como los estomatópodos Eurysquilla veleronis y Meiosquilla swetti, anfípodos, el decápodo Processa peruviana y brachiuros portúnidos, y en una menor proporción, de poliquetos y peces. -
A Review of Longnose Skates Zearaja Chilensisand Dipturus Trachyderma (Rajiformes: Rajidae)
Univ. Sci. 2015, Vol. 20 (3): 321-359 doi: 10.11144/Javeriana.SC20-3.arol Freely available on line REVIEW ARTICLE A review of longnose skates Zearaja chilensis and Dipturus trachyderma (Rajiformes: Rajidae) Carolina Vargas-Caro1 , Carlos Bustamante1, Julio Lamilla2 , Michael B. Bennett1 Abstract Longnose skates may have a high intrinsic vulnerability among fishes due to their large body size, slow growth rates and relatively low fecundity, and their exploitation as fisheries target-species places their populations under considerable pressure. These skates are found circumglobally in subtropical and temperate coastal waters. Although longnose skates have been recorded for over 150 years in South America, the ability to assess the status of these species is still compromised by critical knowledge gaps. Based on a review of 185 publications, a comparative synthesis of the biology and ecology was conducted on two commercially important elasmobranchs in South American waters, the yellownose skate Zearaja chilensis and the roughskin skate Dipturus trachyderma; in order to examine and compare their taxonomy, distribution, fisheries, feeding habitats, reproduction, growth and longevity. There has been a marked increase in the number of published studies for both species since 2000, and especially after 2005, although some research topics remain poorly understood. Considering the external morphological similarities of longnose skates, especially when juvenile, and the potential niche overlap in both, depth and latitude it is recommended that reproductive seasonality, connectivity and population structure be assessed to ensure their long-term sustainability. Keywords: conservation biology; fishery; roughskin skate; South America; yellownose skate Introduction Edited by Juan Carlos Salcedo-Reyes & Andrés Felipe Navia Global threats to sharks, skates and rays have been 1. -
Redescription of Cheirodon Ibicuhiensis Eigenmann, 1915 (Characiformes: Cheirodontinae), with Notes on Its Distribution in Argentina
| REDESCRIPTION OF Cheirodon ibicuhiensis EIGENMANN, 1915 (CHARACIFORMES: CHEIRODONTINAE), WITH NOTES ON ITS DISTRIBUTION IN ARGENTINA JULIA ManTINIan1, AmalIA MIQUElaREna1, 2 & Pablo SCARaboTTI3 1 Sección Ictiología, División Zoología Vertebrados, Museo de La Plata (MLP), Paseo del Bosque s/n, 1900, La Plata, Bs. As., Argentina. 2 Instituto de Limnología Dr. Raúl A. Ringuelet (ILPLA-CONICET), CC 712, 1900, La Plata, Bs. As., Argentina. 3 Instituto Nacional de Limnología (INALI-CONICET-UNL), Ciudad Universitaria, Pje. El Pozo s/n, 3000, Santa Fe, Argentina. E-mail: [email protected] ABSTRACT Cheirodon ibicuhiensis Eigenmann, 1915, is redescribed including new anatomical data based on material collected at sixteen localities in the Lower Paraná and Lower Uruguay River basins in Argentina. This is the first report of the species with accurate localities for this country. C. ibicuhiensis is distinguished from C. interruptus, a morphologically similar and geographically close species, by the following combination of characters: body relatively deep (28.2-39.8% SL) and compressed; snout to anal-fin origin (55-61.7% SL); anal-fin base length (22-31% SL); peduncle depth (8.8-12.6% SL); iv-v, 19-23 anal-fin rays; 17-22 ventral procurrent caudal-fin rays; maxilla with 1-2 teeth; 33-36 scales in the longitudinal series; 6-11 perforated scales on the lateral line. Ecological notes on this species are also provided. Key words: Ostariophysi, Cheirodon, taxonomy, distribution. NATURA NEOTROPICALIS 39 | 1 y 2 | 2008 ISSN 0329-2177 4 | REDESCRIPCIÓN DE Cheirodon ibicuhiensis EIGENMANN, 1915 (CHARACIFORMES: CHEIRODONTINAE), CON NOTAS SOBRE SU DISTRIBUCIÓN EN ARGENTINA JULIA ERIKA ManTINIan1, AmalIA MARía MIQUElaREna1, 2 y Pablo AUGUSTO SCARaboTTI3 1 Sección Ictiología, División Zoología Vertebrados, Museo de La Plata (MLP), Paseo del Bosque s/n, 1900, La Plata, Bs. -
Rapid Assessment of Sustainability for Ecological Risk of Shark and Other
Rapid assessment of sustainability for ecological risk of shark and other chondrichthyan bycatch species taken in the Southern and Eastern Scalefish and Shark Fishery Terence I. Walker, John D. Stevens, J. Matias Braccini, Ross K. Daley, Charlie Huveneers, Sarah B. Irvine, Justin D. Bell, Javier Tovar‐Ávila, Fabian I. Trinnie, David T. Phillips, Michelle A. Treloar, Cynthia A. Awruck, Anne S. Gason, John Salini, and William C. Hamlett Project No. 2002/033 Rapid assessment of sustainability for ecological risk of shark and other chondrichthyan bycatch species taken in the Southern and Eastern Scalefish and Shark Fishery Terence I. Walker, John D. Stevens, J. Matias Braccini, Ross K. Daley, Charlie Huveneers, Sarah B. Irvine, Justin D. Bell, Javier Tovar‐ Ávila, Fabian I. Trinnie, David T. Phillips, Michelle A. Treloar, Cynthia A. Awruck, Anne S. Gason, John Salini, and William C. Hamlett July 2008 Project Number 2002/033 Rapid assessment of sustainability for ecological risk of shark and other chondrichthyan bycatch species taken in the Southern and Eastern Scalefish and Shark Fishery FRDC Report 2002/033 Terence I. Walker, John D. Stevens, J. Matias Braccini, Ross J. Daley, Charlie Huveneers, Sarah B. Irvine, Justin D. Bell, Javier Tovar‐ Ávila, Fabian I. Trinnie, David T. Phillips, Michelle A. Treloar, Cynthia A. Awruck, Anne S. Gason, John Salini, and Hamlett, W. C. Published by Department of Primary Industries, Fisheries Research Brand, Queenscliff, Victoria, 3225. © Fisheries Research and Development Corporation, and Fisheries Victoria. 2008 This work is copyright. Except as permitted under the Copyright Act 1968 (Cth), no part of this publication may be reproduced by any process, electronic or otherwise, without the specific written permission of the copyright owners. -
2020 Interim Receiving Waters Monitoring Report
POINT LOMA OCEAN OUTFALL MONTHLY RECEIVING WATERS INTERIM RECEIVING WATERS MONITORING REPORT FOR THE POINTM ONITORINGLOMA AND SOUTH R EPORTBAY OCEAN OUTFALLS POINT LOMA 2020 WASTEWATER TREATMENT PLANT NPDES Permit No. CA0107409 SDRWQCB Order No. R9-2017-0007 APRIL 2021 Environmental Monitoring and Technical Services 2392 Kincaid Road x Mail Station 45A x San Diego, CA 92101 Tel (619) 758-2300 Fax (619) 758-2309 INTERIM RECEIVING WATERS MONITORING REPORT FOR THE POINT LOMA AND SOUTH BAY OCEAN OUTFALLS 2020 POINT LOMA WASTEWATER TREATMENT PLANT (ORDER NO. R9-2017-0007; NPDES NO. CA0107409) SOUTH BAY WATER RECLAMATION PLANT (ORDER NO. R9-2013-0006 AS AMENDED; NPDES NO. CA0109045) SOUTH BAY INTERNATIONAL WASTEWATER TREATMENT PLANT (ORDER NO. R9-2014-0009 AS AMENDED; NPDES NO. CA0108928) Prepared by: City of San Diego Ocean Monitoring Program Environmental Monitoring & Technical Services Division Ryan Kempster, Editor Ami Latker, Editor June 2021 Table of Contents Production Credits and Acknowledgements ...........................................................................ii Executive Summary ...................................................................................................................1 A. Latker, R. Kempster Chapter 1. General Introduction ............................................................................................3 A. Latker, R. Kempster Chapter 2. Water Quality .......................................................................................................15 S. Jaeger, A. Webb, R. Kempster, -
Redalyc.A Review of Longnose Skates Zearaja Chilensis and Dipturus Trachyderma (Rajiformes: Rajidae)
Universitas Scientiarum ISSN: 0122-7483 [email protected] Pontificia Universidad Javeriana Colombia Vargas-Caro, Carolina; Bustamante, Carlos; Lamilla, Julio; Bennett, Michael B. A review of longnose skates Zearaja chilensis and Dipturus trachyderma (Rajiformes: Rajidae) Universitas Scientiarum, vol. 20, núm. 3, 2015, pp. 321-359 Pontificia Universidad Javeriana Bogotá, Colombia Available in: http://www.redalyc.org/articulo.oa?id=49941379004 How to cite Complete issue Scientific Information System More information about this article Network of Scientific Journals from Latin America, the Caribbean, Spain and Portugal Journal's homepage in redalyc.org Non-profit academic project, developed under the open access initiative Univ. Sci. 2015, Vol. 20 (3): 321-359 doi: 10.11144/Javeriana.SC20-3.arol Freely available on line REVIEW ARTICLE A review of longnose skates Zearaja chilensis and Dipturus trachyderma (Rajiformes: Rajidae) Carolina Vargas-Caro1 , Carlos Bustamante1, Julio Lamilla2 , Michael B. Bennett1 Abstract Longnose skates may have a high intrinsic vulnerability among fishes due to their large body size, slow growth rates and relatively low fecundity, and their exploitation as fisheries target-species places their populations under considerable pressure. These skates are found circumglobally in subtropical and temperate coastal waters. Although longnose skates have been recorded for over 150 years in South America, the ability to assess the status of these species is still compromised by critical knowledge gaps. Based on a review of 185 publications, a comparative synthesis of the biology and ecology was conducted on two commercially important elasmobranchs in South American waters, the yellownose skate Zearaja chilensis and the roughskin skate Dipturus trachyderma; in order to examine and compare their taxonomy, distribution, fisheries, feeding habitats, reproduction, growth and longevity. -
Zootaxa, Urolophus Kapalensis Sp. Nov., a New Stingaree (Myliobatiformes: Urolophidae)
Zootaxa 1176: 41–52 (2006) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA 1176 Copyright © 2006 Magnolia Press ISSN 1175-5334 (online edition) Urolophus kapalensis sp. nov., a new stingaree (Myliobatiformes: Urolophidae) off eastern Australia GORDON K. YEARSLEY & PETER R. LAST CSIRO Marine and Atmospheric Research, GPO Box 1538, Hobart, Tasmania 7001, Australia; gordon.years- [email protected] Abstract A new stingaree, Urolophus kapalensis sp. nov., is described from material collected off eastern Australia. It differs from the partially sympatric U. paucimaculatus, the only other known Urolo- phus with a bell-shaped internasal flap, in having a dorsal fin (absent in U. paucimaculatus), in col- oration (e.g. with a V-shaped band across the interorbit, which is absent in U. paucimaculatus), and in a number of morphometric and meristic characters including: a narrower disc (disc width 4.6–5.0 times distance between first gill slits vs 5.1 in U. paucimaculatus), a longer stinging spine (11.8– 14.9 vs 9.3–11.5% TL), a shorter spiracle (0.8–1.0 vs 1.1–1.2 times orbit length), and more pre- spine vertebrae (86–95 vs 79–88). The two species are also distinguished by the cytochrome oxi- dase subunit 1 (CO1) gene with a divergence of 9%. The new Urolophus is medium-sized, and occurs from Cape Moreton (Qld) south to Disaster Bay (N.S.W.) in depths of 9–79 m. Key words: Australia, new species, southwestern Pacific Ocean, stingaree, Tasman Sea, Urol- ophidae, Urolophus Introduction The batoid family Urolophidae, otherwise known as stingarees, is represented in Australia by two genera Trygonoptera Müller & Henle, 1841 and Urolophus Müller & Henle, 1837 (Last & Stevens 1994; Last & Compagno 1999).