Results 21 to 30 of about 2,923 (70)

A fish frontier? Itatiaia expedition and biodiversity repositories reveal gaps in fish occurrences in Brazil’s high-altitude aquatic ecosystems [PDF]

open access: yes
Brazil harbors one of the highest number of fish species in the world; however, the occurrence of fish in high-altitude aquatic ecosystems remains largely underexplored.
Carlos H. Pacheco da Luz   +3 more
core   +1 more source

Relações filogenéticas de Neoplecostominae Regan, 1904 (siluriformes: loricariidae) [PDF]

open access: yes, 2008
A phylogenetic analysis of the Neoplecostominae was performed under the maximum parsimony optimality criterion, based on characters originally proposed in this study as well as on characters from previous analyses.
Pereira, Edson Henrique Lopes
core  

Filogenia de Hypoptopomatini: (Loricariidae: Hypoptopomatinae) [PDF]

open access: yes, 2014
A partir das diferentes análises filogenéticas previamente propostas e do conhecimento de cinco novos táxons pertencentes à Hypoptopomatini, surgiram questionamentos a respeito das relações de parentesco dentro da tribo.
Delapieve, Maria Laura de Souza
core  

Molecular detection of Setaria tundra (Issaitshikoff & Rajewskaya, 1928) and Setaria cervi (Rudolphi, 1819) in red deer in Slovakia

open access: yesVeterinary research communications
Filaroid nematodes Setaria tundra (Issaitshikoff & Rajewskaya, 1928) and Setaria cervi (Rudolphi, 1819) are internal parasites from family Onchocercidae with occurrence in the northern hemisphere.
J. Lazár   +6 more
semanticscholar   +1 more source

In vivo fluorescent cercariae reveal the entry portals of Cardiocephaloides longicollis (Rudolphi, 1819) Dubois, 1982 (Strigeidae) into the gilthead seabream Sparus aurata L.

open access: yesParasites & Vectors, 2019
Despite their complex life-cycles involving various types of hosts and free-living stages, digenean trematodes are becoming recurrent model systems. The infection and penetration strategy of the larval stages, i.e. cercariae, into the fish host is poorly
G. S. van Beest   +4 more
semanticscholar   +1 more source

Anatomia e relações filogenéticas da família Loricariidae (Ostariophysi: Siluriformes) com ênfase na subfamília Hypoptopomatinae [PDF]

open access: yes, 2006
A anatomia e osteologia de Parotocinclus maculicauda (Steindachner, 1877) são descritas e comparadas com outros loricariídeos e astroblepídeos examinados.
Albornoz, Pablo Cesar Lehmann
core  

A revision of the trichostrongylid nematode Cooperia Ransom, 1907, from deer game: recent integrative research confirms the existence of the ancient host-specific species Cooperia ventricosa (Rudolphi, 1809)

open access: yesFrontiers in Veterinary Science
The trichostrongylid roundworms of the genus Cooperia, which are important in veterinary medicine, currently comprise 19 valid species that parasitize the small intestine of both free-living and domestic ruminants. Only four Cooperia spp.
Martina Albrechtová   +8 more
semanticscholar   +1 more source

Distribuição, dinâmica reprodutiva e conservação da ictiofauna da Reserva Natural Salto Morato, Guaraqueçaba, Paraná [PDF]

open access: yes, 2018
Orientador: Prof. Dr. José Marcelo Rocha AranhaDissertação (mestrado) - Universidade Federal do Paraná, Setor de Ciências Biológicas, Programa de Pós-Graduação em Zoologia.
Camargo, Mariele Pasuch de
core   +1 more source

Filogenia da subfamília Corydoradinae (Siluriformes: Callichthyidae) [PDF]

open access: yes, 1997
Phylogeny ofthe subfamily Corydoradinae (Siluriformes : Callichthyidae) Corydoradinae, comprising the genera Aspidoras, Brochis and Corydoras, constitutes about 90% of the neotropical catfish family Callichthyidae, a well-defined monophyletic group.
Britto, Marcelo Ribeiro de
core   +1 more source

Determination of Optimum Nativo SC 300 (Trifloxystrobin 100g/l + Tebuconazole 200g/l) Spray Frequency for Control of Rust (Puccinia allii Rudolphi) on Garlic in Bale Highlands, South Eastern Ethiopia

open access: yes, 2017
Garlic (Allium sativum L.) is one of the major allium crops grown in the highlands of Bale, south eastern Ethiopia. Rust, which is caused by Puccinia allii Rudolphi is the most important disease of this crop in these areas. There are different fungicides
Yonas Worku Mulat
semanticscholar   +1 more source

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