A5086835232- Fish biology, ecology, and behavior
- Fish Biology and Ecology Studies
- Fish Ecology and Management Studies
- Ichthyology and Marine Biology
- Identification and Quantification in Food
- Coleoptera: Cerambycidae studies
- Coleoptera Taxonomy and Distribution
- Lichen and fungal ecology
- Animal and Plant Science Education
- Species Distribution and Climate Change
- Forest Ecology and Biodiversity Studies
- Conservation, Biodiversity, and Resource Management
- Invertebrate Taxonomy and Ecology
- Scarabaeidae Beetle Taxonomy and Biogeography
- Mollusks and Parasites Studies
Universidade Federal do Rio Grande do Sul
2014-2024
Universidade Federal do Rio Grande
2022
We herein analyse the history of description freshwater fish fauna from three drainages in one most densely collected areas Brazil, and possibly South America, Rio Grande do Sul State, southern Brazil. An updated inventory species rio Uruguay (partial) Laguna dos Patos (complete) Tramandaí basins is presented. found number new described these increased nearly 56% since 1981, reaching a total 422 species, but even now 10% this still corresponds to undescribed species. This rate suggests that...
Knowledge on biodiversity is fundamental for conservation strategies. The Brazilian Pampa region, located in subtropical southern Brazil, neglected terms of conservation, and knowledge its fragmented. We aim to answer the question: how many, which, species occur Pampa? In a collaborative effort, we built lists plants, animals, bacteria, fungi that Pampa. included information distribution patterns, main habitat types, status. Our study resulted referenced totaling 12,503 (12,854 taxa, when...
Specimens presently identified as belonging to Odontesthes perugiae species group from rio Paraná, Uruguay and Negro in Argentina, Brazil are revised. Two recognized: perugiae, type of the genus with orientalis a junior synonym, new described herein. is redescribed its distribution restricted lower basins. The endemic upper above Salto do Yucumã (Brazil) or Saltos del Moconá (Argentina) falls. Both share remaining taxa included O. species-group (O. bicudo, ledae, mirinensis, piquava)...
Austrolebias paucisquama is described from the rio Vacacaí drainage, a tributary to Jacuí, Rio Grande do Sul, Brazil. The new species belongs alexandri species-group, by sharing apomorphic bright blue iridescence and dark gray pectoral fins in males. It distinguished other of this group having fewer scales around caudal peduncle (12) dorsal-fin rays males (17-21). lack contact organs on inner surface fin color pattern females - ground light brownish, sides body with variable number...
The species of the genus Trichomycterus inhabiting laguna dos Patos system are reviewed and five recognized. tropeiro Ferrer & Malabarba has a restricted range is endemic to uppermost portion rio das Antas. balios, n. sp., distributed in upper Antas Caí basins. diatropoporos, da Prata basin, tributary poikilos, widely Jacuí basin tributaries Taquari-Antas. brachykechenos, Sinos. new distinguishable from most congeners, except for T. davisi, mboycy, naipi, payaya, papilliferus, perkos,...
A new species of the subtribe Cynopoecilina is described from rio Gravataí basin, laguna dos Patos system, southern Brazil. The relationships among taxa discussed based on two analyses: one using 71 discrete characters and other with addition six continuous analyzed without discretization. resulted in first fully resolved phylogenies for Cynopoecilus Leptolebias species, not obtained analysis including only characters. assigned to as sister group remaining genus. diagnosis proposed...
The aquatic habitats of the Taquari-Antas river basin (in Patos Lagoon basin, southern Brazil) are under marked environmental transformation because damming for hydropower production. In order to provide an information baseline on fish fauna we a comprehensive survey species based primary and secondary data. We found 5,299 valid records in representing 119 519 sampling sites. There 13 non-native species, six which native other Neotropical basins. About 24% total still lacking taxonomic...
ABSTRACT The Neotropical genus Scleronema is revised based on the re-examination of type specimens and 1,713 newly collected specimens. diagnosed from other trichomycterids by following unambiguous derived characters: fleshy flap at base maxillary barbell; skin in posterior margin opercle; articulation between autopalatine vomer ventrally located, with medial margins autopalatines very close to each other; an interrupted or not ossified arch-shaped process its dorsal surface forming a canal....
Abstract Listrura is a genus of small pencil catfishes Trichomycteridae that currently comprises 12 valid species in coastal drainages Southern and Southeastern Brazil, all with fossorial dwelling habitats eel-like morphology. Here, we describe new known from only two specimens collected an interval 24 years order to make it taxonomically available for biodiversity inventories conservation decisions. The morphologically distinguished its congeners by the combination features, as pectoral-fin...
Trichomycterus tropeiro, new species, is described from the headwaters of rio das Antas, laguna dos Patos system, Southern Brazil. tropeiro distinguishable other species genus by absence pelvic fins and girdle, except candidus catamarcensis. It differs these two in several counts measurements. The apparent endemism discussed.
The genus Trichomycterus is a highly diverse group of Neotropical catfishes that encompass almost 60% all the cur-rently recognized species Trichomycteridae. A new this genus, T. perkos, herein described from tribu-taries Paranapanema and Uruguai River basins, southern Brazil. exhibits remarkable ontogeneticchange in its pigmentation, having unique color pattern when adult. adult pigmentation consists three wide darkbrown stripes, located an inner skin layer trunk caudal peduncle, combined...
A new species of Trichomycterus endemic to the Ribeira de Iguape River basin, southeastern Brazil, was studied based on morphological and molecular evidence. This had an outer layer coloration composed scattered, round, black or dark-brown spots smaller equivalent in size circumference eye; eight pectoral-fin rays; 28-29 opercular odontodes; 54-56 interopercular supraorbital line laterosensory system not interrupted, with pores s2 absent. Two other from basin are recorded, their taxonomic...
Color patterns of the body are commonly used to distinguish and identify species Trichomycterus. Therefore, variation in color pattern a population can cause doubt concerning identification. With purpose test hypothesis high Trichomycterus davisi (Haseman, 1911), 118 specimens were collected stream private Ecological Park southern Brazil, which 88 morphological analysis 30 for DNA barcoding analysis. Three phenotypic classes determined analyzing distribution, size shape dark brown spots...
Ituglanis boitata, new species, is described from the rio Tramandaí system and Mampituba Araranguá basins, southern Brazil. This species distinguished congeners with exception of I. bambui, boticario, paraguassuensis proops by supraorbital canal cephalic laterosensory interrupted between nasal frontal sections presence pore s2 (vs. uninterrupted absent). boitata differs these in osteological characters, measurements body coloration. presents a noticeable endemism Tramandaí–Mampituba...
Rhyacoglanis pulcher is a rare Neotropical rheophilic bumblebee catfish known only from the type locality in Cis-Andean Amazon region, Ecuador, and type-species of genus. So far, three syntypes collected 1880 were specimens unambiguously associated to name R. available scientific collections. Recently, specimen was discovered fast-flowing stretch Villano river, tributary Curaray Napo river basin, representing new record after nearly 140 years. Here, we present this record, identified by...
A new species assigned to the genus Trichomycterus from area of waterfalls Tabay stream, Paraná River basin, Misiones, Argentina, is described. ytororo sp. nov. distinguished all other in by presence 31-35 dorsal procurrent caudal-fin rays and combination some external characters such as: coloration, number pectoral-fin pores laterosensory canals. The taxon belongs a presumably monophyletic group composed T. crassicaudatus, igobi, stawiarski based on 24 or more thickly ossified rigid with...
Listrura depinnai, new species, is described from a small swampy area belonging to Laguna dos Patos system, Municipality of Viamão, Rio Grande do Sul state, southern Brazil. It occurs within the wildlife reserve Refúgio de Vida Silvestre Banhado Pachecos, and represents southernmost record glanapterygine catfishes. The species easily distinguished remaining by having following putative autapomorphies: region below midline flank covered several spots (vs. unpigmented or with slender row...
Abstract Cambeva contains species with complex taxonomy or poorly delimitated in terms of morphology and geopraphic distribution. We conducted an extensive review populations from coastal drainages Southern to Southeastern Brazil evaluate geographic limits integrative analysis including morphological molecular data (COI). test if two single-locus methods, Bayesian Poisson Tree Processes (bPTP) Generalized Mixed Yule Coalescent (GMYC), are efficient delimit boundaries by the comparison...
Cambeva piraquara, sp. nov., a restricted-range and rare species last collected from over 20 years ago, is described the Rio Piraquara, upper Iguaçu basin, Paraná (La Plata) system. The new distinguished all congeners by having two conspicuous dark-brown longitudinal stripes on inner skin layer of body plain yellowish background: wide well-defined mid-lateral stripe extending opercular patch odontodes to first third caudal-fin rays dorso-sagittal comprising large coalescent rounded blotches...
Phalloceros spiloura Lucinda, 2008 is known from the coastal drainages of Rio Grande do Sul and Santa Catarina States, Iguaçu Uruguai river basins. Its geographic distribution herein extended to a new basin, Laguna dos Patos system, an isolated costal drainage Southern Brazil.
ABSTRACT A new species of Ituglanis associated to the grasslands Pampa biome is described from rio Uruguai basin, southern Brazil. The distinguished its congeners by low number ribs and a unique color pattern composed an outer layer with scattered round black blotches equivalent in size eye circumference over reddish brown background on lateral surface body. We provide genetic sequences mitochondrial gene Cytochrome c Oxydase subunit I (COI) for three paratypes discuss aspects about recent...
A new species of Scleronema (Trichomycteridae) is described from the lowlands three coastal river basins in Atlantic Forest Santa Catarina state, Southern Brazil. Aspects anatomy, reproduction, diet, feeding behavior and habitat are discussed comparison with related taxa. The conservation status species, which currently faces several threats due to environmental impacts on its region occurrence, established. Based characteristics observed as well most congeners, phylogenetic position...
This work aimed to describe Cambeva cauim, sp. nov., endemic the Rio Iguaçu basin, Brazil and redescribe stawiarski using external internal morphological data through revision of specimens deposited in fish collections, including type material. In this process, we have also added comments on possible locality C. stawiarski. nov. are mainly diagnosed by anatomy number procurrent caudal-fin rays addition colouration several meristic morphometric characters. Both species compared with other...