Results 51 to 60 of about 43,330 (296)

Dental development in the tropical gar (Atractosteus tropicus) and the evolution of vertebrate dentitions

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Dentitions have diversified enormously during vertebrate evolution, involving reductions, modifications, or allocations to prey seizing and processing regions. A combination of ancient and novel features related to dental and oropharyngeal apparatuses is found in extant lineages of non‐teleost fishes, such as the gars.
Anna Pospisilova   +4 more
wiley   +1 more source

Reproductive pattern of an exploited dusky grouper Epinephelus marginatus (Lowe 1834) (Pisces: Serranidae) population in the western Mediterranean

open access: yesScientia Marina, 2010
The reproductive parameters of the dusky grouper, Epinephelus marginatus, in the Balearic Islands (western Mediterranean) were studied with a histological analysis of specimens caught by artisanal and recreational spear fisheries.
Olga Reñones   +4 more
doaj   +1 more source

Fhod3 in zebrafish supports myofibril stability during growth of embryonic skeletal muscle

open access: yesDevelopmental Dynamics, EarlyView.
Abstract Background Actin filament organization in cardiomyocytes critically depends on the formin Fhod3, but a role for Fhod3 in skeletal muscle development has not yet been described. Results We demonstrate here that in zebrafish mutated for one of two fhod3 paralog genes, fhod3a, skeletal muscle of the trunk appears normal through 2 days post ...
Aubrie Russell   +3 more
wiley   +1 more source

Modelling the effect of temperature on hatching and settlement patterns of meroplanktonic organisms: the case of octopus

open access: yesScientia Marina, 2006
The duration of embryonic development and the planktonic stage of meroplanktonic species is highly temperature dependent and thus the seasonal temperature oscillations of temperate regions greatly affect the patterns of hatching and benthic ...
Stelios Katsanevakis   +1 more
doaj   +1 more source

A systematic review evaluating the performance of eDNA methods relative to conventional methods for biodiversity monitoring

open access: yesEcography, EarlyView.
The rapid adoption of environmental DNA (eDNA) methods has drastically changed biodiversity monitoring efforts. It is often claimed that eDNA methods are more sensitive and efficient than conventional biodiversity monitoring methods, but it is often unclear what metrics support this claim.
Nicholas J. Iacaruso   +4 more
wiley   +1 more source

The Impact of Freedom of Speech on Conspiracy Beliefs

open access: yesEuropean Journal of Social Psychology, EarlyView.
ABSTRACT Conspiracy beliefs are often portrayed as a threat to democracies. However, less is known about the extent to which the state of democracy may affect conspiracy beliefs. Hence, we investigated the impact of the societal level of freedom of speech on conspiracy beliefs. In Study 1, using aggregated nation‐level data (N = 68 countries), we found
Paul Bertin   +6 more
wiley   +1 more source

Ciclo gonadal del chorito Mytilus chilensis (Bivalvia: Mytilidae) en dos localidades del sur de Chile Gonadal cycle of the mussel Mytilus chilensis (Bivalvia: Mytilidae) at two localities in southern of Chile

open access: yesLatin American Journal of Aquatic Research, 2011
Se analizó de forma cualitativa y cuantitativa el ciclo gonadal del bivalvo Mytilus chilensis en las localidades de Chaihuín y bahía Yal, sur de Chile, entre octubre 2007 y junio 2008.
Pablo A Oyarzún   +5 more
doaj  

Differences in Reproductive Behavior between Spawning and Non-Spawning Zebrafish Pairs and the Effects of 17α-Ethinylestradiol (EE2)

open access: yesToxics, 2016
Reproductive success manifested by spawning and fertilization, in most fish, depends partly on an appropriate courtship behavior by both sexes. The zebrafish reproductive behavior can be resolved in some of its constituent elements by a computerized ...
Per G. Henriksen   +2 more
doaj   +1 more source

Peach Kernel Oil Modulates Lipid Metabolism Disorder in ApoEa CRISPR/Cas9 Gene‐Disrupted Zebrafish

open access: yesFood Frontiers, EarlyView.
In this study, we used CRISPR/Cas9 gene editing technology to establish a lipid metabolism disorder model of ApoEa mutant zebrafish. We applied peach kernel oil to this model and studied the mechanism of peach kernel oil regulating lipid disorder in combination with transcriptomics.
Lei Xia   +14 more
wiley   +1 more source

A Blend of F Prostaglandins Functions as an Attractive Sex Pheromone in Silver Carp

open access: yesFishes, 2019
A series of laboratory experiments tested the hypothesis that the Silver Carp (Hypophthalmichthys molitrix), an invasive river carp from China, employs a prostaglandin F2α-derived sex pheromone that is attractive and species-specific.
Peter W. Sorensen   +4 more
doaj   +1 more source

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