Results 61 to 70 of about 8,071 (223)

A bristle‐nosed Jurassic ray‐finned fish (Actinopterygii) bears true dermal odontodes on its snout

Journal of Anatomy, EarlyView.
Teeth show extreme diversity, including tooth‐like dermal odontodes or “skin teeth” in many extant fishes. We describe the anatomy of enlarged tubercles on the snout of Redfieldius, an extinct early Jurassic fish. We found that the tubercles in Redfieldius are dermal odontodes that evolved independently from those of living species. Abstract Comparison
Jack Stack, Ben T. Kligman, Maranda L. Stricklin   +2 more
wiley   +1 more source

The dental plate on bichir pectoral fins: A unique dermal skeletal element bearing individual odontodes with tooth‐like replacement

Journal of Anatomy, Volume 249, Issue 1, Page 127-140, July 2026.
Pectoral fins of bichirs encompass the so‐called dental plates – unique dermal skeletal elements with individual odontodes identical to the oral teeth. Abstract The dermal skeleton appeared early in vertebrate evolution in the form of mineralized skin denticles composed of tooth‐like units—odontodes.
Tomáš Suchánek, Ann Huysseune, Robert Cerny   +2 more
wiley   +1 more source

Mobile Elements in Ray-Finned Fish Genomes

Life, 2020
Ray-finned fishes (Actinopterygii) are a very diverse group of vertebrates, encompassing species adapted to live in freshwater and marine environments, from the deep sea to high mountain streams.
Federica Carducci, Marco Barucca, Adriana Canapa, Elisa Carotti, Maria Assunta Biscotti   +4 more
doaj   +1 more source

Actinopterygii

Published as part of Barták, Pavel, Ivanov, Martin, Tihlaříková, Eva, Olbert, Martin & Neděla, Vilém, 2024, New, large actinopterygian fishes from the upper Carboniferous of Nýřany, Czech Republic, pp. 501-522 in Acta Palaeontologica Polonica 69 (3) on pages 511-512, DOI: 10.4202/app.01162.2024, http://zenodo.org/record ...
Barták, Pavel, Ivanov, Martin, Tihlaříková, Eva, Olbert, Martin, Neděla, Vilém   +4 more
openaire   +1 more source

Seascape Connectivity Shapes Genetic and Species β‐Diversity in Tropical Reef Fishes

Ecology and Evolution, Volume 16, Issue 6, June 2026.
Our study combines species occurrence data from five reef fish families with genomic SNP data for 19 species. A correlation between genetic and species β‐diversity emerges only in the Western Indian Ocean, where higher genetic β‐diversity and significant isolation by distance at both the population and community levels are detected.
Maurine Vilcot, Thomas Keggin, Camille Albouy, Giulia F. A. Donati, Andrés Acosta‐Chaparro, Giomar H. Borrero‐Pérez, Marie‐Charlotte Cheutin, Juan David González Corredor, Régis Hocdé, Jean‐Baptiste Juhel, Virginie Marques, David Mouillot, Maria Mutis‐Martinezguerra, Andrea Polanco F., Mark J. A. Vermeij, Loïc Pellissier, Stéphanie Manel   +16 more
wiley   +1 more source

Marine Parasite Biogeography Mirrors Host Patterns Across Latitude, Area, and Diversity

New Zealand Journal of Zoology, Volume 53, Issue 2, June 2026.
Parasites are integral components of biodiversity, yet they remain poorly represented in large‐scale biogeographic theory. In this study, we test whether marine parasites follow three macroecological patterns established for free‐living taxa, namely that parasite species richness: (1) scales positively with area (both host body size and geographic area)
Thomas C. Morris, Mark John Costello, Nicholas J. Matzke   +2 more
wiley   +1 more source

Investigation of asymmetry in sagitta otolith features in relation to total length in Lethrinus species from the Red Sea coast of Yemen

Oceanological and Hydrobiological Studies
This study aimed to investigate the asymmetry in otolith length (OL), otolith width (OW) and otolith weight (OWe) in relation to total body length in 224 fish samples of Lethrinus borbonicus, L. letnjan and L.
Jawad Laith A., AL-Shwafi Nabil A. A.
doaj   +1 more source

Evaluating the empirical basis for threat attribution in the IUCN Red List

Conservation Biology, Volume 40, Issue 3, June 2026.
Abstract Understanding the impacts of different threats on species is key to successful conservation interventions and policies. The International Union for Conservation of Nature (IUCN) assesses threats to species, and the organization's Red List of Threatened Species is a key conservation tool.
Ena Humphries, Isaac M. Smith, Mark Ziebell, Charlotte M. Probst, Neil Carter, Brian C. Weeks   +5 more
wiley   +1 more source

Complete mitogenomes of five ecologically diverse Australian freshwater fishes

Mitochondrial DNA. Part B. Resources, 2019
Complete mitochondrial genome sequences were determined for five species of Australian freshwater fishes, representing a diverse range of ecologies and life histories. Mitogenomes were sequenced and annotated for Craterocephalus stramineus (Atherinidae);
Daniel J. Schmidt, Carmel McDougall
doaj   +1 more source

Beyond Hard Parts: Metabarcoding Advances Dietary Resolution in Threatened Amazonian Elasmobranchs

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Elasmobranchs are highly vulnerable and are considered one of the most threatened vertebrates worldwide. Insights into diet can improve conservation measures. The bias of traditional morphological methods towards taxa with distinctive hard parts makes metabarcoding analysis a complementary tool to assess diet composition. Here, we analysed the
Alan Érik S. Rodrigues, Cintia Oliveira Carvalho, Jorge Luiz S. Nunes, Rafaela Maria S. Brito, Marcelo Ândrade, Carolina Oliveira Magalhães, Fabrício dos Anjos Santa Rosa, Audun Schrøder‐Nielsen, Hugo J. de Boer, Quentin Mauvisseau, Jonathan S. Ready, João Bráullio L. Sales   +11 more
wiley   +1 more source