Results 51 to 60 of about 5,417 (192)
Cladistics, EarlyView.Abstract Replicated pairs of ancestral and evolutionarily derived populations provide opportunities to test hypotheses about the deterministic laws of evolution. The Asellus aquaticus species complex is an invertebrate model system with several independent surface‐to‐cave transitions and a complicated and unresolved evolutionary history.
Peter Trontelj +3 more
wiley +1 more source
Neotropical IchthyologyAstyanax goyanensis (Miranda-Ribeiro, 1944), new combination, is redescribed based on the type series and topotypes, and A. courensis, new species, is herein described.
Vinicius A Bertaco +2 more
doaj +1 more source
Fish Sperm Subpopulations Detection, Separation, and Application: Current State and Trends
Reviews in Aquaculture, Volume 18, Issue 4, September 2026.Modern advances in sperm biology highlight the necessity of recognising intra‐ejaculate heterogeneity as a central concept for advancing both the fundamental understanding of fertilisation processes and the development of artificial reproduction techniques in fishes. ABSTRACT Sperm subpopulations represent a fundamental manifestation of intra‐ejaculate
Viktoriya Dzyuba +2 more
wiley +1 more source
, 2023 Published as part of Koerber, Stefan, Litz, Thomas O. & Serra, Wilson S., 2023, CLOFFUY - update 5 - supplement to Checklist of the Freshwater Fishes of Uruguay., pp.
Koerber, Stefan +2 more
openaire +2 more sources
Biological Reviews, Volume 101, Issue 3, Page 1491-1510, June 2026.ABSTRACT Basal and standard metabolic rate (BMR and SMR) are cornerstones of physiological ecology and are assumed to be relatively fixed intrinsic properties of organisms that represent the minimum energy required to sustain life. However, this assumption is conceptually flawed. Many core maintenance processes underlying SMR are temporally partitioned
Helena Norman +4 more
wiley +1 more source
, 2021 Astyanax bransfordii (Gill, 1877). Longjaw Tetra; Sardina, Sardina Picuda, Picuda, Sábalo, Sabalete, Sardina Hocicuda, Sardina Dientona. Distribution: Global: Middle America; from southwestern Nicaragua to northern Costa Rica, Atlantic drainages; Costa Rica: LN, RF, SJ, SC, Sa, To and Pa (Atlantic), 5– 530 m.a.s.l., Pri, Pot.
openaire +2 more sources
Quantitative genetic analysis of retinal degeneration in the blind cavefish Astyanax mexicanus. [PDF]
PLoS ONE, 2013 The retina is the light-sensitive tissue of the eye that facilitates vision. Mutations within genes affecting eye development and retinal function cause a host of degenerative visual diseases, including retinitis pigmentosa and anophthalmia ...
Kelly E O'Quin +3 more
doaj +1 more source
Retention of the Full Visual Opsin Repertoire in Some Australian Cryptozoic Lizards
Ecology and Evolution, Volume 16, Issue 6, June 2026.This study investigates the link between visual evolution and fossorial habits in the endemic Australian skink genus Lerista. We provide evidence for positive site‐specific selection in all 4 cone opsins, as well as relaxed selection specific to LWS. We also provide evidence of selection linked to limb reduction, an indicator of fossorial adaptation ...
Matthew J. R. Ford +5 more
wiley +1 more source
, 2023 Astyanax aeneus (Günther 1860). Banded Tetra; Sardina, Sardina de Río, Sardinilla, Sabalete, Sábalo, Sardina Común, Plateada, Machaca, Coliroja, Picaculo, Golosa, Tetra, Mojarra Vouchers: Not available. Distribution: Central America; from central Mexico to southern Honduras-northern Nicaragua, Pacific drainages; (Nicaragua) Ch (Pacific); 279–319 masl ...
Angulo, Arturo +7 more
openaire +1 more source
Osteología de Astyanax aurocaudatus (Pisces: characidae) del río Roble, Alto Cauca, Colombia. [PDF]
, 2004 Sobre Astyanax aurocaudatus, no existe información osteológica que contribuya a interpretar correctamente su situación taxonómica. En este trabajo se realizaron observaciones osteológicas, en cuatro ejemplares diafanizados: dos machos y dos hembras ...
Ruiz Calderón, Raquel Ivveth
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