Results 61 to 70 of about 14,761 (221)

Determinação do potencial larvófago de Poecilia reticulata em condições domésticas de controle biológico

open access: yesCadernos de Saúde Coletiva, 2014
Configurada como um dos mais importantes problemas de saúde pública do mundo, a dengue atinge especialmente países com clima tropical, como o Brasil. O controle biológico por meio da utilização de peixes larvófagos aparece como alternativa para reduzir ...
Boscolli Barbosa Pereira   +1 more
doaj   +1 more source

Vectors and Vector‐Borne Diseases: Biology, Epidemiology and Integrated Control Strategies

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT Vector‐Borne Diseases (VBDs), transmitted by arthropods such as mosquitoes, ticks, fleas and sandflies, represent a significant threat to global health. These diseases can be caused by a variety of pathogens, including bacteria, viruses, protozoa, and helminths.
Roberta Rinaldi   +4 more
wiley   +1 more source

SPERMATOGONIES ET SPERMATOCYTES FLAGELLÉS CHEZ POECILIA RETICULATA (TÉLÉOSTÉENS CYPRINODONTIFORMES) [PDF]

open access: yesAnnales de Biologie Animale Biochimie Biophysique, 1969
La présence d'un flagelle sur des spermatogonies et spermatocytes et de 2 flagelles sur des spermatides est décrite chez le Guppy (Poecilia reticulata). Les flagelles présents sur les gonies et spermatocytes sont plus courts que ceux des spermatides et débouchent directement hors des cellules. Le mode de formation des flagelles est discuté.
Billard, Roland   +2 more
openaire   +2 more sources

A wild‐caught rosy barb Pethia conchonius in a British urban pond underscores the need to prevent aquarium releases

open access: yesJournal of Fish Biology, EarlyView.
Abstract A specimen of rosy barb Pethia conchonius of 51 mm standard length, encountered in an urban pond in London, is reported. This small cyprinid is native to lakes and streams in subtropical regions of southern Asia and is commonly sold as an ornamental fish.
Peter J. Barry   +3 more
wiley   +1 more source

Evidence for inbreeding depression in a species with limited opportunity for maternal effects [PDF]

open access: yes, 2015
It is often assumed that mating with close relatives reduces offspring fitness. In such cases, reduced offspring fitness may arise from inbreeding depression (i.e., genetic effects of elevated homozygosity) or from post-mating maternal investment.
Head, Megan L.   +2 more
core   +1 more source

Nonapeptide cell size differs between male morphs of the West African cichlid, Pelvicachromis pulcher

open access: yesJournal of Fish Biology, EarlyView.
Abstract Alternative male morphs are found in many species of fishes. These morphs often differ in suites of social behaviours, such as aggression and territoriality, associated with alternative reproductive tactics. Such consistent morph‐typical behavioural profiles suggest common differences in underlying neuroendocrine mechanisms.
Adam R. Reddon   +2 more
wiley   +1 more source

Sperm storage by males causes changes in sperm phenotype and influences the reproductive fitness of males and their sons [PDF]

open access: yes, 2017
Recent studies suggest that environmentally induced effects on sperm phenotype can influence offspring phenotype beyond the classic Mendelian inheritance mechanism.
Adriaenssens   +54 more
core   +1 more source

Capacidad larvívora del gold fish (carassius auratus auratus) y del guppy salvaje (poecilia reticulata) sobre larvas de aedes aegypti en condiciones de laboratorio

open access: yesRevista Científica, 2010
El control biológico de vectores de importancia médica se presenta como una alternativa al uso de plaguicidas. La utilización de peces larvívoros se promueve como una nueva estrategia para el control de vectores.
Nereida Valero   +5 more
doaj  

Size‐selective mortality evolutionarily alters collective behaviour in response to predation risk in a zebrafish (Danio rerio) harvest‐induced selection model

open access: yesJournal of Fish Biology, EarlyView.
Abstract Intensive multigenerational size‐selective mortality has been found to alter collective properties like shoaling via evolutionary adaptations of individual‐level behavioural traits. For example, experimental populations of zebrafish (Danio rerio) experiencing intensive large size‐selective mortality over multiple generations developed less ...
Tamal Roy   +2 more
wiley   +1 more source

Female preference for blue in Japan blue guppies (Poecilia reticulata) [PDF]

open access: yes, 2013
Guppies (Poecilia reticulata) are widely used as a model species in mate choice studies. Although native to South America, guppies have been introduced to natural water bodies in disparate regions of the globe.
A Kodric-Brown   +61 more
core   +1 more source

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