Five New Species of Astroblepid Fish for Colombian Andes
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Sequence Analyses of the 16S Rrna of Epigean and Hypogean Diplurans in the Jumandi Cave Area, Ecuador
Espinasa, Christoforides & Morfessis Sequence analyses of the 16S rRNA of epigean and hypogean diplurans in the Jumandi Cave area, Ecuador Luis Espinasa1,2, Sara Christoforides1 & Stella E. Morfessis1 1 School of Science, Marist College, 3399 North Rd, Poughkeepsie, New York 12601, USA 2 [email protected] (corresponding author) Key Words: Diplura, Jumandi Cave, Ecuador, troglophile, troglobite, Arthropoda, Insecta, surface, cave, depigmentation, eyeless, Nicoletiidae. One of the most visited caves in Ecuador is Jumandi Cave (0o 52.5028’ S, 77o 47.5587’ W). Jumandi Cave is 660 meters above sea level, 4 kilometers north of the village of Archidona, and 14 km north of the town of Tena in the Napo Province (Peck 1985). The cave is a single stream passage with side corridors. For a full description of the cave and a map see Peck (1985). Temperature inside the cave is 22 °C (Peck 1985). Bats and bat guano is scarce throughout the cave. A stream takes up most of the cave floor and brings in considerable plant debris that may be the food source for the aquatic invertebrate and vertebrate community. The most distinguished inhabitant of this cave is the endemic cave-adapted catfish, Astroblepus pholeter (Collette, 1962) (Collette 1962; Haspel et al. 2012). Stewart Peck, professor and entomologist at the University of Carleton, visited Jumandi Cave in 1984 and conducted a bioinventory. He reported the presence of 22 species of invertebrates as well as the Astroblepus catfish (Peck 1985). According to Peck, 19 species of the invertebrates were troglophiles and three were trogloxenes. The only reported troglobiont was Astroblepus pholeter (Peck 1985). -
Multilocus Molecular Phylogeny of the Suckermouth Armored Catfishes
Molecular Phylogenetics and Evolution xxx (2014) xxx–xxx Contents lists available at ScienceDirect Molecular Phylogenetics and Evolution journal homepage: www.elsevier.com/locate/ympev Multilocus molecular phylogeny of the suckermouth armored catfishes (Siluriformes: Loricariidae) with a focus on subfamily Hypostominae ⇑ Nathan K. Lujan a,b, , Jonathan W. Armbruster c, Nathan R. Lovejoy d, Hernán López-Fernández a,b a Department of Natural History, Royal Ontario Museum, 100 Queen’s Park, Toronto, Ontario M5S 2C6, Canada b Department of Ecology and Evolutionary Biology, University of Toronto, Toronto, Ontario M5S 3B2, Canada c Department of Biological Sciences, Auburn University, Auburn, AL 36849, USA d Department of Biological Sciences, University of Toronto Scarborough, Toronto, Ontario M1C 1A4, Canada article info abstract Article history: The Neotropical catfish family Loricariidae is the fifth most species-rich vertebrate family on Earth, with Received 4 July 2014 over 800 valid species. The Hypostominae is its most species-rich, geographically widespread, and eco- Revised 15 August 2014 morphologically diverse subfamily. Here, we provide a comprehensive molecular phylogenetic reap- Accepted 20 August 2014 praisal of genus-level relationships in the Hypostominae based on our sequencing and analysis of two Available online xxxx mitochondrial and three nuclear loci (4293 bp total). Our most striking large-scale systematic discovery was that the tribe Hypostomini, which has traditionally been recognized as sister to tribe Ancistrini based Keywords: on morphological data, was nested within Ancistrini. This required recognition of seven additional tribe- Neotropics level clades: the Chaetostoma Clade, the Pseudancistrus Clade, the Lithoxus Clade, the ‘Pseudancistrus’ Guiana Shield Andes Mountains Clade, the Acanthicus Clade, the Hemiancistrus Clade, and the Peckoltia Clade. -
Ecología Trófica Y Reproductiva De Trichomycterus Caliense Y Astroblepus Cyclopus (Pisces: Siluriformes) En El Río Quindio, Alto Cauca, Colombia
Rev. Biol. Trop., 49(2): 657-666, 2001 www.ucr.ac.cr www.ots.ac.cr www.ots.duke.edu Ecología trófica y reproductiva de Trichomycterus caliense y Astroblepus cyclopus (Pisces: Siluriformes) en el río Quindio, Alto Cauca, Colombia César Román-Valencia Universidad del Quindio, Departamento de Biología, A.A. 460, Armenia, Quindio, Colombia. Fax: (57) 67462563; [email protected] Recibido 27-IV-2000. Corregido 9-X-2000. Aceptado 23-X-2000. Abstract: The trophic and reproductive ecology of catfish (Trichomycterus caliense and Astroblepus cyclopus) was studied in the Quindio River upper Basin, Alto Cauca, Colombia. The pH was neutral, water oxygen content high (8.4 ppm) and temperature in the habitats was 18.63 ºC; both species are nonmigratory and sympatric with four other fish species. The ovaries mature primarily between May and September in T. caliense; between Decem- ber and May in A. cyclopus. The mean size at maturity is 8.3 cm (standard length) in T. caliense and 6.0 cm (stan- dard length) in A. cyclopus; the sex ratio is 1:1 in T. caliense (X2=3.4, P≥0.05) and in A. cyclopus (X2=1.44, P≥0.1); the fecundity is low (191 and 113 oocytes respectively) and the eggs are small (1.5 and 2.39 mm respectively). The fishes are insectivorous and specialize in Coleoptera, Diptera and Trichoptera; Spearman Rank Correlation Coeffi- cients (rs=0.464) indicated that there are differences (T= 2.5148, P<0.01) between their diets; both taxa did not agree with the expected trophic habits for sympatric species that are morphologically similar and related in the sa- me trophic level. -
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. -
Distribution and Habitat Suitability Index Model for the Andean Catfish Astroblepus Ubidiai (Pisces: Siluriformes) in Ecuador
Distribution and habitat suitability index model for the Andean catfish Astroblepus ubidiai (Pisces: Siluriformes) in Ecuador Luis A. Vélez-Espino Environmental and Resource Studies Program, Trent University, Peterborough, Ontario, K9J 7B8, Canada. Fax: 1(705) 748-1026; 1(705) 748-1569; [email protected] Current address: 70 Chesterton Lane. Guelph, Ontario, N1E 7A6. Tel. (519) 780-1681. Received 03-III-2003. Corrected 19-XII-2003. Accepted 12-III-2004. Abstract. In conservation biology there is a basic need to determine habitat suitability and availability. Astroblepus ubidiai (Siluriforms), the only native fish in the highlands of Imbabura province in the Ecuadorian Andes, was abundant in the past in the Imbakucha watershed and adjacent drainages, but currently it is restricted to a few isolated refuges. Conservation actions are needed if this unique fish is to persist. A Habitat Suitability Index (HSI) for the species has been developed in order to aid management decisions. In this HSI model biomass density (B) was selected as a better indicator of habitat quality than either abundance or density. A population well-being index (PI) was constructed with the combination of B and an indicator of fish health (proportion of fish in the population with parasites and deformities). Based in other models of benthic fish the habitat variables current velocity, flow, depth, width, cover, invertebrate composition, vegetation type, terrestrial vegetation, land use, substrate, temperature, pH, TDS, oxygen, altitude, and slope were included in the analysis. An anthropogenic perturbation index (H) and a fragment isolation index (FII) were developed and included as habitat variables as well. The HSI model was applied to refuges and a sample of 15 aquatic bodies without fish populations within the study region. -
Redalyc.Checklist of the Freshwater Fishes of Colombia
Biota Colombiana ISSN: 0124-5376 [email protected] Instituto de Investigación de Recursos Biológicos "Alexander von Humboldt" Colombia Maldonado-Ocampo, Javier A.; Vari, Richard P.; Saulo Usma, José Checklist of the Freshwater Fishes of Colombia Biota Colombiana, vol. 9, núm. 2, 2008, pp. 143-237 Instituto de Investigación de Recursos Biológicos "Alexander von Humboldt" Bogotá, Colombia Available in: http://www.redalyc.org/articulo.oa?id=49120960001 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 Biota Colombiana 9 (2) 143 - 237, 2008 Checklist of the Freshwater Fishes of Colombia Javier A. Maldonado-Ocampo1; Richard P. Vari2; José Saulo Usma3 1 Investigador Asociado, curador encargado colección de peces de agua dulce, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt. Claustro de San Agustín, Villa de Leyva, Boyacá, Colombia. Dirección actual: Universidade Federal do Rio de Janeiro, Museu Nacional, Departamento de Vertebrados, Quinta da Boa Vista, 20940- 040 Rio de Janeiro, RJ, Brasil. [email protected] 2 Division of Fishes, Department of Vertebrate Zoology, MRC--159, National Museum of Natural History, PO Box 37012, Smithsonian Institution, Washington, D.C. 20013—7012. [email protected] 3 Coordinador Programa Ecosistemas de Agua Dulce WWF Colombia. Calle 61 No 3 A 26, Bogotá D.C., Colombia. [email protected] Abstract Data derived from the literature supplemented by examination of specimens in collections show that 1435 species of native fishes live in the freshwaters of Colombia. -
View/Download
SILURIFORMES (part 10) · 1 The ETYFish Project © Christopher Scharpf and Kenneth J. Lazara COMMENTS: v. 25.0 - 13 July 2021 Order SILURIFORMES (part 10 of 11) Family ASPREDINIDAE Banjo Catfishes 13 genera · 50 species Subfamily Pseudobunocephalinae Pseudobunocephalus Friel 2008 pseudo-, false or deceptive, referring to fact that members of this genus have previously been mistaken for juveniles of various species of Bunocephalus Pseudobunocephalus amazonicus (Mees 1989) -icus, belonging to: Amazon River, referring to distribution in the middle Amazon basin (including Rio Madeira) of Bolivia and Brazil Pseudobunocephalus bifidus (Eigenmann 1942) forked, referring to bifid postmental barbels Pseudobunocephalus iheringii (Boulenger 1891) in honor of German-Brazilian zoologist Hermann von Ihering (1850-1930), who helped collect type Pseudobunocephalus lundbergi Friel 2008 in honor of John G. Lundberg (b. 1942), Academy of Natural Sciences of Philadelphia, Friel’s Ph.D. advisor, for numerous contributions to neotropical ichthyology and the systematics of siluriform and gymnotiform fishes Pseudobunocephalus quadriradiatus (Mees 1989) quadri-, four; radiatus, rayed, referring to four-rayed pectoral fin rather than the usual five Pseudobunocephalus rugosus (Eigenmann & Kennedy 1903) rugose or wrinkled, referring to “very conspicuous” warts all over the skin Pseudobunocephalus timbira Leão, Carvalho, Reis & Wosiacki 2019 named for the Timbira indigenous groups who live in the area (lower Tocantins and Mearim river basins in Maranhão, Pará and -
Threshold Elemental Ratios and the Temperature Dependence of Herbivory in Fishes
Received: 24 September 2018 | Accepted: 23 January 2019 DOI: 10.1111/1365-2435.13301 RESEARCH ARTICLE Threshold elemental ratios and the temperature dependence of herbivory in fishes Eric K. Moody1 | Nathan K. Lujan2 | Katherine A. Roach3 | Kirk O. Winemiller3 1Department of Ecology, Evolution, and Organismal Biology, Iowa State University, Abstract Ames, Iowa 1. Herbivorous ectothermic vertebrates are more diverse and abundant at lower lati- 2 Department of Biological Sciences, tudes. While thermal constraints may drive this pattern, its underlying cause remains University of Toronto Scarborough, Toronto, Ontario, Canada unclear. We hypothesized that this constraint stems from an inability to meet the el- 3Department of Wildlife and Fisheries evated phosphorus demands of bony vertebrates feeding on P-poor plant material at Sciences, Program of Ecology and Evolutionary Biology, Texas A&M University, cooler temperatures because low gross growth efficiency at warmer temperatures College Station, Texas facilitates higher P ingestion rates. We predicted that dietary carbon:phosphorus Correspondence (C:P) should exceed the threshold elemental ratio between carbon and P-limited Eric K. Moody growth (TERC:P) for herbivores feeding at cooler temperatures, thereby limiting the Email: [email protected] range of herbivorous ectothermic vertebrates facing P-limited growth. Funding information 2. We tested this hypothesis using the Andean suckermouth catfishes Astroblepus Smithsonian Tropical Research Institute; Division of Integrative Organismal Systems, and Chaetostoma. Astroblepus are invertivores that inhabit relatively cool, high-el- Grant/Award Number: NSF OISE-1064578; evation streams while Chaetostoma are grazers that inhabit relatively warm, low- International Sportfish Foundation; Coypu Foundation elevation streams. We calculated TERC:P for each genus across its elevational range and compared these values to measured values of food quality over an ele- Handling Editor: Shaun Killen vational gradient in the Andes. -
Habitat Perturbation and Survival Strategies of the Andean Catfish Astroblepus Mariae (Fowler, 1919) Uriel A
Rev. Acad. Colomb. Cienc. Ex. Fis. Nat. 39(150):36-41, enero-marzo de 2015 Ciencias naturales Habitat perturbation and survival strategies of the Andean catfish Astroblepus mariae (Fowler, 1919) Uriel A. Buitrago-Suarez1, Jose I. Mojica2,*, Lisa K. Bonneau3 1Department of Integrative Biology at Oklahoma State University, Stillwater, Oklahoma, USA 2 Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, Colombia 3 Department of Natural Sciences Mount Marty College, Yankton, Dakota del Sur, USA Abstract Astroblepid species inhabit the Andean Cordilleras in South America. Their habitat has undergone a rapid transformation to the unimaginable levels of degradation since ancient times. State of knowledge on the habitat perturbation and the concomitant extirpation of endemic astroblepid species is scarce. The Andes Cordilleras are characterized by fertile soil and as a result of that, vast regions are transformed for agriculture and pasture for cattle. These processes require the use of water obtained from creeks and springs that causes remarkable changes of the natural configuration of these water systems and the disappearance of the fish fauna together with the zooplankton and aquatic flora. Despite these human actions, some species of Astroblepus may have the ability to respond to the rapid habitat transformation enabling them to survive. In this paper we will discuss the incidence of habitat perturbation in a localized stream segment on the presence of Astroblepus mariae. Key words: Habitat perturbation, survival, refuge, buffer zone. Perturbación de hábitat y estrategias de supervivencia del bagre Astroblepus mariae (Fowler, 1919) Resumen Las especies del género Astroblepus habitan en la cordillera de los Andes en Suramérica. -
Evolution of Nonspectral Rhodopsin Function at High Altitudes
Evolution of nonspectral rhodopsin function at high altitudes Gianni M. Castiglionea,b, Frances E. Hauserb, Brian S. Liaoa, Nathan K. Lujanb,c,d,1, Alexander Van Nynattena, James M. Morrowb,2, Ryan K. Schottb, Nihar Bhattacharyyaa, Sarah Z. Dunganb, and Belinda S. W. Changa,b,e,3 aDepartment of Cell & Systems Biology, University of Toronto, Toronto, ON, Canada M5S 3G5; bDepartment of Ecology & Evolutionary Biology, University of Toronto, Toronto, ON, Canada M5S 3B2; cDepartment of Natural History, Royal Ontario Museum, Toronto, ON, Canada M5S 2C6; dDepartment of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX 77843-2358; and eCentre for the Analysis of Genome Evolution and Function, University of Toronto, Toronto, ON, Canada M5S 3B2 Edited by David M. Hillis, The University of Texas at Austin, Austin, TX, and approved May 30, 2017 (received for review April 24, 2017) High-altitude environments present a range of biochemical and phys- The dim-light visual pigment rhodopsin presents an ideal system iological challenges for organisms through decreases in oxygen, in which to investigate adaptation in a GPCR. Rhodopsin (RH1) pressure, and temperature relative to lowland habitats. Protein- has been extensively characterized across vertebrates, with studies level adaptations to hypoxic high-altitude conditions have been largely focused on how its spectral properties (i.e., wavelength of λ identified in multiple terrestrial endotherms; however, comparable maximum absorbance, MAX) can be linked to adaptation to various adaptations in aquatic ectotherms, such as fishes, have not been as spectral environments (12, 13). Beyond spectral tuning, recent extensively characterized. In enzyme proteins, cold adaptation is in vitro work has also highlighted the importance of the kinetics of – attained through functional trade-offs between stability and activity, activation and stability of rhodopsin (14 16), aspects of the proteins often mediated by substitutions outside the active site. -
On the Osteology and Myology of the Cephalic Region and Pectoral Girdle
Belg. J. Zool., 136 (1) : 15-24 January 2006 On the osteology and myology of the cephalic region and pectoral girdle of Nematogenys inermis (Ghichenot, 1848), with comments on the autapomorphies and phylo- genetic relationships of the Nematogenyidae (Teleostei : Siluriformes) Rui Diogo, Michel Chardon and Pierre Vandewalle Laboratory of Functional and Evolutionary Morphology, Bat. B6, University of Liège, B-4000 Sart-Tilman (Liège), Belgium Corresponding author : Rui Diogo. Laboratory of Functional and Evolutionary Morphology, Bat. B6, University of Liège, B-4000 Sart-Tilman (Liège), Belgium; E-mail : [email protected]; Telephone : 00 32 4 3665024; Fax : 00 32 4 3663715 ABSTRACT. The cephalic and pectoral girdle structures of Nematogenys inermis are described and compared to those of other catfishes, as the foundation for a discussion on the autapomorphies and phylogenetic relationships of the Nematogenyidae. Our observations and comparisons indicate that nematogenyids are defined, at least, by two unique, autapomorphic characters, namely : 1) anterior margin of prevomer markedly extended anteriorly, at about the same level of anterior margin of mesethmoid; 2) anterior ceratohyal with prominent, posteriorly pointed, posterodorsal pro- jection bordering a significant part of the dorsal margin of the posterior ceratohyal. With respect to the phylogenetic relationships of the Nematogenyidae, this study supports Mo's 1991 and de Pinna's 1992 phylogenetic hypotheses according to which the nematogenyids and the trichomycterids are sister-groups. KEY WORDS : catfish, cephalic region, Loricarioidea, morphology, myology, Nematogenyidae, osteology, pectoral girdle, phylogeny, Siluriformes. INTRODUCTION monly grouped in a separate family, Nematogenyidae, not even one single unique, autapomorphic character has been suggested so far to define this family (see DIOGO, The Siluriformes are one of the most economically 2003). -
Priocharax Nanus, a New Miniature Characid from the Rio Negro
Neotropical Ichthyology, 12(2): 229-246, 2014 Copyright © 2014 Sociedade Brasileira de Ictiologia DOI: 10.1590/1982-0224-20130171 Priocharax nanus, a new miniature characid from the rio Negro, Amazon basin (Ostariophysi: Characiformes), with an updated list of miniature Neotropical freshwater fishes Mônica Toledo-Piza1, George M. T. Mattox2 and Ralf Britz3 Priocharax nanus, new species, is described from the rio Negro, Brazil. It is a miniature fish that retains as an adult the larval rayless pectoral fin, a diagnostic character of the genus. Priocharax nanus possesses fewer reductive features compared to congeners, P. ariel and P. pygmaeus, from which it can be distinguished by the presence of i,6 pelvic-fin rays (vs. i,5), the presence of the claustrum (vs. claustrum absent) and the presence of two postcleithra (vs. postcleithra absent). An updated list of 213 species of miniature Neotropical freshwater fishes is presented. The greatest diversity among them is represented by the Characiformes with 87 miniature species. Priocharax nanus, espécie nova, é descrita do rio Negro, Brasil. É um peixe miniatura que retém no adulto a forma larval da nadadeira peitoral, um caráter diagnóstico do gênero. Priocharax nanus possui um número menor de caracteres redutivos quando comparado aos congêneres, P. ariel and P. pygmaeus, dos quais pode ser distinguida pela presença de i,6 raios na nadadeira pélvica (vs. i,5), presença do claustrum (vs. claustrum ausente) e presença de dois pós-cleitros (vs. pós-cleitros ausentes). Uma lista atualizada de 213 espécies de peixes miniatura de água doce neotropicais é apresentada. A maior diversidade entre eles é representada pelos Characiformes, com 87 espécies miniatura.