Results 31 to 40 of about 873 (190)

3D Electron Microscopy Reveals the Structural Complexity of the Intravacuolar Membranous Network in Cyrilia lignieresi-Infected Erythrocytes of the Fish Synbranchus marmoratus. [PDF]

J Eukaryot Microbiol
ABSTRACT This study employs advanced three‐dimensional electron microscopy techniques, including Transmission Electron Microscopy (TEM) tomography and freeze‐fracture imaging via scanning electron microscopy (SEM), to investigate the ultrastructural organization of Cyrilia lignieresi‐infected red blood cells (iRBCs) in the host fish Synbranchus ...
Fachetti BS, Turiel-Silva M, Wendt C, Costi HT, da Silva EO, Rodrigues APD, de Souza W, Miranda K, Diniz JAP.   +8 more
europepmc   +2 more sources

Evolution of reproductive modes in sharks and rays

Journal of Evolutionary Biology, Volume 36, Issue 11, Page 1630-1640, November 2023., 2023
The evolution of reproductive modes in sharks, rays, and chimaeras. Abstract The ecological and life history drivers of the diversification of reproductive modes in early vertebrates are not fully understood. Sharks, rays and chimaeras (group Chondrichthyes) have an unusually diverse variety of reproductive modes and are thus an ideal group to test the
Gergely Katona, Flóra Szabó, Zsolt Végvári, Tamás Székely Jr, András Liker, Robert P. Freckleton, Balázs Vági, Tamás Székely   +7 more
wiley   +1 more source

Social learning in non‐grouping animals

Biological Reviews, Volume 98, Issue 4, Page 1329-1344, August 2023., 2023
ABSTRACT Social learning is widespread in the animal kingdom and is involved in behaviours from navigation and predator avoidance to mate choice and foraging. While social learning has been extensively studied in group‐living species, this article presents a literature review demonstrating that social learning is also seen in a range of non‐grouping ...
Mike M. Webster
wiley   +1 more source

Potamotrygon rex Carvalho 2016

, 2023
Published as part of Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da & Pinna, Mario De, 2023, Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP), pp. 301-332 in Zootaxa 5296 (3) on pages 320-321, DOI: 10.11646/zootaxa.5296.3.1, http://zenodo.org/record ...
Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De   +4 more
openaire   +2 more sources

Use of underwater contactless ultrasonography to elucidate the internal anatomy and reproductive activity of manta and devil rays (family: Mobulidae)

Journal of Fish Biology, Volume 103, Issue 2, Page 305-323, August 2023., 2023
Abstract The ability to visualise the internal anatomical structures of fish provides important information on their reproductive status and body condition and has made important contributions to many areas of fish biology. Obtaining information on the internal anatomy of fish has traditionally required euthanasia and dissection.
Niv Froman, Marie‐Aude Genain, Guy M. W. Stevens, Gareth P. Pearce   +3 more
wiley   +1 more source

Physiological parameters of freshwater stingrays from the Uatumã River Basin, Amazon, Brazil [PDF]

Anais da Academia Brasileira de Ciências
Knowledge of freshwater stingrays’ physiological parameters is essential for conserving elasmobranch diversity. This study aims to characterize the erythrogram and plasma biochemistry of freshwater stingrays from the Uatumã River basin for the first time.
MARIA FERNANDA S. GOMES, MAIKO WILLAS S. RIBEIRO, CRISTIANE C. GUIMARÃES, TIAGO C. NÓBREGA, THAYSON L. PINTO, RAYANA M. PAIXÃO, ADRIENE NÚZIA A. SANTOS, PAULO HENRIQUE R. ARIDE, ADRIANO T. DE OLIVEIRA   +8 more
doaj   +1 more source

Analysis of the Entire Mitogenome of the Threatened Freshwater Stingray <i>Potamotrygon leopoldi</i> (Myliobatiformes: Potamotrygonidae) and Comprehensive Phylogenetic Assessment in the Xingu River, Brazilian Amazon. [PDF]

Int J Mol Sci
The present study characterizes the complete mitochondrial genome of Potamotrygon leopoldi, commonly referred to as the “white blotched stingray”, a member of the Potamotrygonidae family that are a group of stingrays that live exclusively in ...
Guerreiro SLM, Vidal AF, Silva CS, Cavalcante GC, Magalhães L, Gomes DHF, Filho JCDS, Souza JES, Pires É, Oliveira G, Melo DSD, Sá ALA, Hamoy I, Ribeiro-Dos-Santos Â, Santos SEB.   +14 more
europepmc   +2 more sources

Ocorrência de hemoglobinas de efeito Root em peixes amazônicos [PDF]

Acta Amazonica, 1978
Resumo O efeito Root foi medido em hemolisados de representantes de 56 gêneros de peixes amazônicos. Hemolisados de várias espécies de peixes de respiração aérea apresentaram efeito Root, contrariamente às hipóteses publicadas.
Martha Farmer, Hans Jorgen Fyhn, Unni E. H. Fyhn, Robert W. Noble   +3 more
doaj   +1 more source

Potamotrygon jabuti Carvalho 2016

, 2023
Published as part of Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da & Pinna, Mario De, 2023, Type specimens of Elasmobranchii in the Museu de Zoologia da Universidade de São Paulo (MZUSP), pp. 301-332 in Zootaxa 5296 (3) on pages 315-316, DOI: 10.11646/zootaxa.5296.3.1, http://zenodo.org/record ...
Lima, Arthur De, Loboda, Thiago Silva, Gianeti, Michel Donato, Silva, João Paulo Capretz Batista Da, Pinna, Mario De   +4 more
openaire   +2 more sources

Proposal of a non-lethal visual census method to estimate freshwater stingray abundance

Universitas Scientiarum, 2016
There is not a current method to estimate South American freshwater stingray’s abundance. Therefore we designed a census method and tested it in the field.
Mónica Andrea Morales-Betancourt, Carlos Andrés Lasso-Alcalá   +1 more
doaj   +1 more source