Results 31 to 40 of about 1,189 (191)

Genetic divergence in the Poecilia sphenops complex in Middle America [PDF]

Biochemical Systematics and Ecology, 1983
Key Word Index - Poecilia; Poeciliidae; Pisces; isozymes; starch gel electrophoresis; allozymes; chemosystematics. Abatract- Based on morphological and allozymic evidence, the Poecilia sphenops complex is an array of at least ten biological species ranging from Mexico to Venezuela (systematics are unclear south of Mexico) and not a single polytypic ...
Brett, Betty Lou Hilton, Turner, Bruce J.   +1 more
openaire   +2 more sources

Mosquito responses to lethal and nonlethal effects of predation and an insect growth regulator

Ecosphere, Volume 12, Issue 3, March 2021., 2021
Abstract Lethal and nonlethal effects of predation are likely to impact phenotypic traits of potential prey that elude capture. Nonlethal effects of predation on prey can include alterations in behavior or morphology in response to predation risk which may impair prey growth and fitness.
Abdullah A. Alomar, Barry W. Alto
wiley   +1 more source

Predator avoidance in extremophile fish [PDF]

, 2013
Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P ...
Arias-Rodriguez, Lenin, Bierbach, David, Herrmann, Nina, Indy, Jeane Rimber, Plath, Martin, Riesch, Rüdiger, Schulte, Matthias, Zimmer, Claudia   +7 more
core   +2 more sources

Impact of Household Chemicals on the Ornamental Fish Poecilia sphenops (Valenciennes)

International Journal of Scientific Research in Science, Engineering and Technology, 2023
This study examined the impact of various household chemicals, such as Surf excel, hair dye, popular soap, fabric softener, shampoo, and coconut oil, on the ornamental fish Poecilia sphenops (Valenciennes in Cuvier and Valenciennes, 1846). Length-weight relationships, gonadosomatic and hepatosomatic indexes, oxygen consumption, and opercular beat rate
null Azhagu Raj R, null Hemalatha K, null Sudhakani B., null Ari Karan M., null Jeya Murugan E, null Balachandar M   +5 more
openaire   +1 more source

Female mating preferences in blind cave tetras Astyanax fasciatus (Characidae, Teleostei). [PDF]

, 2006
The Mexican tetra Astyanax fasciatus has evolved a variety of more or less color- and eyeless cave populations. Here we examined the evolution of the female preference for large male body size within different populations of this species, either surface-
Plath, Martin, Rohde, Matthias, Schlupp, Ingo, Schröder, Thekla, Taebel-Hellwig, Angelika   +4 more
core   +1 more source

Competência de peixes como predadores de larvas de Aedes aegypti, em condições de laboratório Efficacy of fish as predators of Aedes aegypti larvae, under laboratory conditions

Revista de Saúde Pública, 2007
OBJETIVO: Avaliar a competência de peixes na predação de larvas de Aedes aegypti, em condições de laboratório. MÉTODOS: Foram testados machos e fêmeas de cinco espécies de peixe. Os testes de predação duravam cinco semanas para cada espécie.
Luciano Pamplona de Góes Cavalcanti, Ricardo José Soares Pontes, Ana Cláudia Ferreira Regazzi, Francisco José de Paula Júnior, Rodrigo Lins Frutuoso, Emanuel Primos Sousa, Fábio Fernandes Dantas Filho, José Wellington de Oliveira Lima   +7 more
doaj   +1 more source

Isolation of Tetrahymena pyriformis From Several Infected Pet Fish Species And a Regime For Its Treatment

The Iraqi Journal of Veterinary Medicine, 2005
Tetrahymena pyriformis has been firstly isolated from brood Goldfish (Carassius auratus) Common, Fantail, Ryukin, Veiltail and Moor, Black molly (Poecilia sphenops), Gourami (Trichogaster trichopterus), red Swordtail (Xiphophorus helleri), Guppy ...
Omar Bassim Ahmed Al- Tayyar
doaj   +1 more source

Improving Inference Within Freshwater Community Studies: Accounting for Variable Detection Rates of Amphibians and Fish. [PDF]

Ecol Evol
We used three sampling methods at freshwater ponds to survey amphibian and fish communities in an urbanised landscape. We found highly variable detection probabilities among nine amphibian species and higher detection rates for fish. The detection of fish at a pond reduced the probability of detecting amphibians.
Hamer AJ, Horányi J.
europepmc   +2 more sources

Predator-induced changes of female mating preferences: innate and experiential effects [PDF]

, 2011
Background: In many species males face a higher predation risk than females because males display elaborate traits that evolved under sexual selection, which may attract not only females but also predators. Females are, therefore, predicted to avoid such
Bierbach, David, Schulte, Matthias, Herrmann, Nina, Tobler, Michael, Stadler, Stefan, Jung, Christian T., Kunkel, Benjamin, Riesch, Rüdiger, Klaus, Sebastian, Ziege, Madlen, Indy, Jeane Rimber, Arias-Rodriguez, Lenin, Plath, Martin   +12 more
core   +2 more sources

EFEKTIVITAS PEMBERIAN ASTAXANTHIN PADA Moina sp. DENGAN DOSIS BERBEDA UNTUK MENINGKATKAN KECERAHAN WARNA IKAN MOLLY (Poecilia sphenops) [PDF]

, 2022
Molly (Poecilia sphenops) termasuk jenis ikan primadona bagi peminat ikan hias air tawar. Ikan ini mudah dibudidayakan dan memiliki warna yang indah dan beragam.
AS, Agus Putra, Isma, Muhammad Fauzan, Junita, Afrah, Nasution, Nurul Izza   +3 more
core   +2 more sources