A5021952522- Fish Biology and Ecology Studies
- Fish biology, ecology, and behavior
- Ichthyology and Marine Biology
- Fish Ecology and Management Studies
- Genetic diversity and population structure
- Subterranean biodiversity and taxonomy
- Morphological variations and asymmetry
- Isotope Analysis in Ecology
- Evolution and Paleontology Studies
- Identification and Quantification in Food
- Aquatic Invertebrate Ecology and Behavior
- Genomics and Phylogenetic Studies
- Paleontology and Evolutionary Biology
- Marine and fisheries research
- Genetic and phenotypic traits in livestock
- Environmental DNA in Biodiversity Studies
- Wildlife Ecology and Conservation
- Animal Behavior and Reproduction
- Amphibian and Reptile Biology
- Plant Virus Research Studies
- Bat Biology and Ecology Studies
- Air Quality and Health Impacts
- Geology and Paleoclimatology Research
- Transboundary Water Resource Management
- Spider Taxonomy and Behavior Studies
Auburn University
2016-2025
American Museum of Natural History
2013-2025
ORCID
2024
Museo de Historia Natural
2024
Weatherford (Switzerland)
2023
Cambrian Innovation (United States)
2022
Illinois Archaeological Survey
1996
Basin-scale planning is needed to minimize impacts in mega-diverse rivers
Abstract Catfish represent 12% of teleost or 6.3% all vertebrate species, and are enormous economic value. Here we report a high-quality reference genome sequence channel catfish ( Ictalurus punctatus ), the major aquaculture species in US. The was validated by genetic mapping 54,000 SNPs, annotated with 26,661 predicted protein-coding genes. Through comparative analysis genomes transcriptomes scaled scaleless fish scale regeneration experiments, address genomic basis for most striking...
The order Cypriniformes is the most diverse of freshwater fishes. Recent phylogenetic studies have approached a consensus on relationships and proposed new classification family-level groupings in Cypriniformes. lack reference for placement genera amongst families has hampered adoption this more widely. We herein provide an updated compilation membership to suprageneric taxa based latest classifications. propose taxon: subfamily Esominae within Danionidae, genus Esomus.
A phylogenetic analysis of nearly all genera the Hypostominae and Ancistrinae is provided based on osteology, external anatomy, digestive tract anatomy. The results suggest that a paraphyletic assemblage. Delturus Upsilodus form monophyletic group sister to other loricariids. Hemipsilichthys, Isbrueckerichthys, Kronichthys, Pareiorhina with Neoplecostomus Hypoptopomatinae are transferred Neoplecostominae. remainder made by continuing recognition Ancistrinae. returned recognized as tribe,...
Pterygoplichthys punctatus and P. weberi, new species, are unique among hypostomines in having a medially divided buccal papilla. The two species can be separated from one another by color (small spots punctatus, large weberi), condition of the papilla (deeply at all ages vs. shallowly adults lateral keel odontodes (fairly short directed posteriorly almost laterally body width (SL/cleithral 3.6-4.0 3.3-3.4 weberi). is known rio Madeira drainage Urubu Brazil has published, but unconfirmed...
Cypriniformes (minnows, carps, loaches, and suckers) is the largest group of freshwater fishes in world (~4300 described species). Despite much attention, previous attempts to elucidate relationships using molecular morphological characters have been incongruent. In this study we present first phylogenomic analysis anchored hybrid enrichment for 172 taxa represent order (plus three out-group taxa), which dataset date (219 loci, 315,288 bp, average locus length 1011 bp). Concatenation...
The Orinoco Andes and northwestern Guiana Shield (Essequibo, Orinoco, Branco, upper Negro) were found to contain 11 species of Ancistrus, six which are new. We additionally examine A. brevifilis from the Río Tuy Venezuela trinitatis island Trinidad. in region can be broken up into dorsoventrally flattened (A. leoni new species, lithurgicus, macropthalmus), white yellow-dotted kellerae nudiceps, patronus species), wide-jawed amaris yutajae white-spotted brevifilis, leucostictus, trinitatis,...
A new subfamily, Delturinae, is described to accommodate the loricariid catfish genera Delturus Egenmann & Eigenmann, 1889 and HemipsilichthysEigenmann 1889, a clade recently demonstrated be sister group of all remaining loricariids except Lithogenes. The genus Hemipsilichthys restricted three species, H. gobio (Lütken, 1874), its species papillatus Pereira et al., 2000, nimius 2003. Relationships among were not resolved D. brevis, from Rio Jequitinhonha basin in eastern Brazil. geographical...
Parallel adaptive radiations have arisen following the colonization of islands by lizards and lakes fishes. In these classic examples, parallel radiation is a response to ecological opportunities afforded novel ecosystems similar landscapes that favour evolution suites ecomorphs, despite independent evolutionary histories. Here, we demonstrate cichlid fishes arose in South American rivers. Speciation-assembled communities pike cichlids ( Crenicichla ) independently diversified into ecomorphs...
The Neotropical catfish family Loricariidae contains over 830 species that display extraordinary variation in jaw morphologies but nonetheless reveal little interspecific from a generalized diet of detritus and algae. To investigate this paradox, we collected δ13C δ15N stable isotope signatures 649 specimens representing 32 loricariid genera 82 19 local assemblages distributed across South America. We calculated vectors the distance direction each specimen relative to δ15N/δ13C centroid for...
Standardized measurements and landmarks for traditional morphometrics, landmark-based (partial truss) measurements, geometric morphometrics Cypriniformes are described. meristic counts also
Loricariid catfishes have evolved several modifications of the digestive tract that appear to function as accessory respiratory organs or hydrostatic organs. Adaptations include an enlarged stomach in Pterygoplichthys, Liposarcus, Glyptoperichthys, Hemiancistrus annectens, maracaiboensis, Hypostomus panamensis, and Lithoxus, a U-shaped diverticulum Rhinelepis, Pseudorinelepis, Pogonopoma, Pogonopomoides; ringlike Otocinclus. Scoloplacids, closely related loricariids, enlarged, clear,...
Peckoltia contains 12 described species, eight of which are considered valid. arenaria, P. filicaudata, and ucayalensis recognized as synonyms bachi kuhlmanni is a synonym vittata. In addition, two new species described. The type Peckoltichthys Sophiancistrus both genera junior Peckoltia. range throughout much the Amazon basin, upper Orinoco, Essequibo, perhaps Maroni, can be identified from most other ancistrins by having dentaries that form angle 90° or less others with angled lacking...
We examined the mandibles of 377 individuals representing 25 species, 12 genera, 5 tribes, and 2 subfamilies Loricariidae, a species-rich radiation detritivorous-herbivorous neotropical freshwater fishes distinguished by having ventral oral disk jaws specialized for surface attachment benthic feeding. Loricariid are transversely oriented bilaterally independent, each rotating predominantly around its long axis, although rotational axes likely vary with mandibular geometry. On mandible, we...
The rapid rise of phenotypic and ecological diversity in independent lake-dwelling groups cichlids is emblematic the East African Great Lakes. In this study, we show that similar ecologically based diversification has occurred pike (Crenicichla) throughout Uruguay River drainage South America. We collected genomic data from nearly 500 ultraconserved element (UCEs) loci >260 000 base pairs across 33 species, to obtain a phylogenetic hypothesis for major species evaluate relationships genetic...
Through a series of phylogenetic and taxonomic works, the unwieldy non-monophyletic genus Barbus was reduced to just typical Europe East Asia most small, African, diploid barbs ('Barbus'). The Enteromius Cope, 1867 recently elevated rename small African 'Barbus'; however, this designation has been controversial. Opponents change argue based on poorly supported phylogenies state these changes would disrupt currently well-supported monophyletic groups; is in use, it necessary determine species...
A pharyngeal jaw and loose teeth from Prairie Creek, Indiana, two basioccipital processes Bell Cave, Alabama, appear to be those of Moxostoma hubbsi (Copper Redhorse). Among suckers, only M. carinatum, hubbsi, robustum, ugidatli have molariform on their jaws, with having the largest relative size. Measurements most Creek overlap tooth Cave is measured. The more complete process possesses a small condyle stout along it that are indicative as well smaller centrum for articulation Weberian...
Peckoltia sabaji is described based on specimens from the Guyana Shield regions of Essequibo, Negro, and Orinoco River drainages Venezuela. a member loricariid subfamily Hypostominae, tribe Ancistrini. The species differs nearly all other members Hypostominae coloration — small spots head with becoming very large posterior part body. Those similar either do not have elongated bodies (vs. body elongate) or odontodes opercle as adults absent, rarely one two in adults).
The Hypostomus cochliodon group consists of eight species that were formerly recognized as Cochliodon Kner: H. Kner, hondae (Regan), levis (Pearson), oculeus (Fowler), plecostomoides (Eigenmann), pospisili (Schultz; a synonym hondae), pyrineusi (Miranda-Ribeiro), and taphorni (Lilyestrom) four additional described herein: ericius, hemicochliodon, pagei, sculpodon. occur in phenetic groups: the intermediate hemicochliodon sculpodon appear to be transitional between other terms diet tooth...