Results 71 to 80 of about 12,578 (176)

First Insights on Photoreceptor Organ Ultrastructure in Marine Chaetonotida (Gastrotricha): Species of Xenotrichula and Draculiciteria (Xenotrichulidae)

Acta Zoologica, EarlyView.
ABSTRACT Marine gastrotrichs inhabit sediments with limited available light, yet evidence suggests that photoreceptor organs are present throughout the phylum Gastrotricha. Here, we confirm this proposition with ultrastructural descriptions of photoreceptive organs in two species of Xenotrichulidae (Order Chaetonotida) that lack pigmented ocelli ...
Thiago Quintão Araújo, Rick Hochberg
wiley   +1 more source

Laboratory Biology, Immature and Adult Morphology of Trichopria drosophilae (Perkins) (Hymenoptera: Diapriidae), Parasitoids of Drosophila Flies

Entomologia Experimentalis et Applicata, EarlyView.
This study investigates the laboratory biology and morphology of the parasitoid Trichopria drosophilae, which targets Drosophila flies, including the invasive Drosophila suzukii. Key findings include a detailed description of the parasitoid's egg, three larval instars, and pupal stage, as well as unique behaviors such as siblicide and encapsulation in ...
Alex Gumovsky, Jana Collatz, Lesia Tymochko, Lars Krogmann   +3 more
wiley   +1 more source

Attractiveness of Melon Genotypes to Whitefly (Bemisia tabaci) Mediated by Foliar Morphological and Biochemical Traits

Entomologia Experimentalis et Applicata, EarlyView.
This study identifies melon genotypes resistant to Bemisia tabaci by integrating morphological and biochemical leaf traits. Using free‐choice and no‐choice assays, we demonstrate that resistance is primarily mediated by antixenosis. Genotypes CNPH 11‐1071‐43, CNPH 06‐1047‐343, CNPH 13‐1076, and BG MEL 16 significantly reduced whitefly settling and ...
Lucas de Lima Farias, Wenner Vinícius Araújo Saraiva, Lincon Matheus Araújo Silva, Karen Alessandra Castro Ramos, Vanessa de Araújo Lira, Gabriela Priscila de Sousa Maciel, Celli Rodrigues Muniz, Nívia da Silva Dias‐Pini   +7 more
wiley   +1 more source

An Autoradiographic Study of Invertebrate Uptake of DDT-CL36 [PDF]

, 1967
Author Institution: The Department of Zoology and Entomology, The Ohio State University, Columbus, OhioThis research sought to locate autoradiographically DDT-C136 in tissues of leeches, amphipods, and copepods three months after their marsh habitat was ...
Webster, Edward J.
core  

A defensive symbiont and a plant virus confer direct and discrete phenotypes to a cereal aphid in a context‐dependent manner

Ecological Entomology, EarlyView.
Different BYDV‐PAV isolates exert contrasting effects on aphid fitness, including reproduction and winged production. Different BYDV‐PAV isolates have contrasting effects on aphid dispersal patterns. Aphid feeding behaviour is modulated by the presence of endosymbionts and plant viruses.
Daniel J. Leybourne, Andrea Ceribelli, Sharon E. Zytynska   +2 more
wiley   +1 more source

Brief Note The Occurrence of Epistylis Niagarae (Cliophora: Peritrichida) on Fishes from the Island Region of Western Lake Erie [PDF]

, 1977
Author Institution: Department of Zoology and the Center for Lake Erie Area Research, The Ohio State ...
Crites, John L.
core  

Expression of corticoid‐regulatory genes in the gills of Atlantic salmon (Salmo salar) parr and smolt and during salinity acclimation

Journal of Fish Biology, EarlyView.
Abstract In teleost fishes, cortisol is the major corticoid and has both glucocorticoid and mineralocorticoid actions. However, how fish tissues discriminate between these distinct corticosteroid actions is unclear. In mammals, the major factors responsible for intracellular corticosteroid regulation are glucocorticoid receptors (grs) and the ...
Makoto Kusakabe, Takashi Yada, Graham Young, Amy M. Regish, Stephen D. McCormick   +4 more
wiley   +1 more source

The emergence of pathogens on fish in an impacted estuary and the role of non‐native piranhas in a potential bacterial infectious outbreak

Journal of Fish Biology, EarlyView.
Abstract As many tropical aquatic ecosystems worldwide, the Doce River estuary (DRE, southeastern Brazil) has increasingly faced multiple anthropogenic threats, including deforestation, mining, species introduction and water management. The 2015 collapse of the Fundão iron ore tailings dam severely changed water properties and increased heavy metal ...
Ryan Andrades, Helder C. Guabiroba, Kathiani V. Bastos, Vítor L. A. Rodrigues, Marcelo R. D. Santos, Clarisse M. Arpini, Mayra Cunha Flecher, Helen A. Pichler, Ciro C. Vilar, Maurício Hostim‐Silva, Jean‐Christophe Joyeux   +10 more
wiley   +1 more source

A new species of inseminating catfish of the genus Tympanopleura (Siluriformes: Auchenipteridae) from the Ituxi River, Amazon River basin, northern Brazil, revealed by integrative taxonomy

Journal of Fish Biology, EarlyView.
Abstract A new species of the genus Tympanopleura is described from the Iquiri River, a tributary of the Ituxi River, a right‐bank tributary to the Purus River, Amazon River, northern Brazil. The new species is distinguished from all its congeners by a combination of features, such as the presence of an intensely pigmented square‐shaped blotch on the ...
Frank Raynner V. Ribeiro, Cárlison Silva‐Oliveira, Valdenor Magalhães, Lucas Gama, Lúcia H. Rapp Py‐Daniel   +4 more
wiley   +1 more source

Fish Poxviruses on the Rise: Prospects for Aquatic Health

Journal of Fish Diseases, EarlyView.
ABSTRACT Fish poxviruses are increasingly recognised as emerging pathogens of fish and should be considered in cases of unexplained gill or skin pathology. Carp edema virus (CEV), the causative agent of koi sleepy disease in common carp and koi (Cyprinus carpio), represents the first known example.
Mikolaj Adamek, Marek Matras, Oluwaseun Christianah Ojelade, Motohiko Sano, Mona C. Gjessing, Tomas Korytar, Alberto Falco, Krzysztof Rakus, Verena Jung‐Schroers, Andor Doszpoly   +9 more
wiley   +1 more source