Results 41 to 50 of about 2,193 (218)

Density dependence mediates the ecological impact of an invasive fish

Diversity and Distributions, Volume 26, Issue 7, Page 867-880, July 2020., 2020
Abstract Aim The way in which habitat heterogeneity and predator density affect predator–prey dynamics, space use and prey risk are understudied aspects of foraging ecology, particularly for invasive species. Likewise, how an invasive species’ impact scales with its abundance is poorly understood.
Emma M. DeRoy, Ryan Scott, Nigel E. Hussey, Hugh J. MacIsaac   +3 more
wiley   +1 more source

A Duplicated, Truncated amh Gene Is Involved in Male Sex Determination in an Old World Silverside

G3: Genes, Genomes, Genetics, 2017
A master sex-determining gene, the Y chromosome-linked anti-Müllerian hormone (amhy) gene, has been described in two New World atheriniform species but little is known on the distribution, evolution, and function(s) of this gene in other Atheriniformes ...
Dilip Kumar Bej, Kaho Miyoshi, Ricardo S. Hattori, Carlos A. Strüssmann, Yoji Yamamoto   +4 more
doaj   +1 more source

The effect of rearing temperature in larval development of pejerrey, Odontesthes bonariensis- Morphological indicators of development [PDF]

, 2011
It is well known that in pejerrey water temperature not only affects growth rates but also directs the sexual differentiation process. This fact rise the question of how different the development of pejerrey larvae of the same age is when reared at ...
Chalde, Tomás, Cussac, Victor Enrique, Fernandez, Daniel Alfredo, Somoza, Gustavo Manuel   +3 more
core   +5 more sources

Using asexual vertebrates to study genome evolution and animal physiology: Banded (Fundulus diaphanus) x Common Killifish (F. heteroclitus) hybrid lineages as a model system

Evolutionary Applications, Volume 13, Issue 6, Page 1214-1239, July 2020., 2020
Abstract Wild, asexual, vertebrate hybrids have many characteristics that make them good model systems for studying how genomes evolve and epigenetic modifications influence animal physiology. In particular, the formation of asexual hybrid lineages is a form of reproductive incompatibility, but we know little about the genetic and genomic mechanisms by
Anne C. Dalziel, Svetlana Tirbhowan, Hayley F. Drapeau, Claude Power, Lauren S. Jonah, Yayra A. Gbotsyo, Anne‐Marie Dion‐Côté   +6 more
wiley   +1 more source

Actinopterygii, Atheriniformes, Atherinopsidae, Odontesthes bonariensis Valenciennes, 1835: new records for the Plata Basin, Argentina [PDF]

Check List, 2013
The present work reports the presence of the silverside Odontesthes bonariensis Valenciennes, 1835, in 11 water bodies and six new locations from the lower Plata Basin (Argentina).
Esteban Avigliano, Alejandra Volpedo
doaj   +3 more sources

Temporal changes in gene expression and genotype frequency of the ornithine decarboxylase gene in native silverside Basilichthys microlepidotus: Impact of wastewater reduction due to implementation of public policies

Evolutionary Applications, Volume 13, Issue 6, Page 1183-1194, July 2020., 2020
Abstract Human activity has caused a deterioration in the health and population size of riverine species; thus, public policies have been implemented to mitigate the anthropogenic impacts of water use, watercourse transformation, and pollution. We studied the Maipo River Basin, one of the most polluted with untreated wastewater in Chile, for a period ...
David Veliz, Noemi Rojas‐Hernández, Sylvia V. Copaja, Caren Vega‐Retter   +3 more
wiley   +1 more source

Growth hormone-insuline-like growth factor-I system in pejerrey Odontesthes bonariensis (Atheriniformes)

Revista Brasileira de Zootecnia, 2008
Using biotechnology to increase the growth rates of fish is likely to reduce production costs per unit of food. Among vertebrates, fish appear to occupy a unique position, when growth patterns are considered.
S.E. Arranz, A. A. Sciara, P. Botta, P. Cerutti, M. Tobin, G.M. Somoza   +5 more
doaj   +1 more source

The osteology of the golden grey mullet Liza aurata (Teleostei: Mugiliformes: Mugilidae) including interactive three‐dimensional reconstructions

Journal of Fish Biology, Volume 96, Issue 6, Page 1320-1340, June 2020., 2020
Abstract Grey mullets are remarkably characterized by their overall uniform external morphology. Identifying species as well as positioning the Mugiliformes in a phylogenetic context is rather difficult. Most recently they were placed in the newly erected Ovalentaria, but more detailed relationships to potential sister taxa were not resolved.
Philipp Thieme, Timo Moritz
wiley   +1 more source

Reproductive development of the priapium fish Neosthetus lankesteri Regan, 1916 (Atheriniformes: Phallosthethidae) from Pranburi river estuary, Thailand using the histological approach

, 2020
Reproduction in the family Phallostethidae is an area that has long been of interest especially in gonadal structure and gametogenesis. However, no published data concerning as mentioned above in Neostethus lankesteri Regan, 1916 from Thailand is noted ...
Amphornphan Palasai, S. Senarat, P. N. Lampang, N. Kangwanrangsan, W. Jiraungkoorskul, D. Siqueira-Silva, J. Kettratad   +6 more
semanticscholar   +1 more source

Quality of pejerrey (Odontesthes bonariensis) eggs and larvae in captivity throughout spawning season [PDF]

, 2014
The aim of this work was to assess the quality of pejerrey eggs and larvae throughout its spawning season. Fertilized eggs were taken on September, October, November, and December from a captive broodstock.
Chalde, Tomás, Elisio, Mariano, Miranda, Leandro Andres   +2 more
core   +3 more sources