Results 21 to 30 of about 10,148 (211)

Is Chelidonichthys lucerna (Linnaeus, 1758) a Marine Estuarine-Dependent Fish? Insights from Saccular Otolith Microchemistry

open access: yesFishes, 2023
Tub gurnard, Chelidonichthys lucerna (Linnaeus, 1758), is a Mediterranean-Atlantic benthic species usually captured as by-catch by Portuguese traditional fisheries and considered the most important commercial fish species of the family Triglidae. However,
Inês Ferreira   +7 more
doaj   +1 more source

The variability of corneal and anterior segment parameters in keratoconus [PDF]

open access: yes, 2016
Purpose: To analyse, describe and test diverse corneal and anterior segment parameters in normal and keratoconic eyes to better understand the geometry of the keratoconic cornea. Method: 44 eyes from 44 keratoconic patients and 44 eyes from 44 healthy
Cardona Torradeflot, Genís   +3 more
core   +1 more source

PRESENT STATE OF THE SPRING PLANKTON COMMUNITY IN THE NORTHERN OKHOTSK SEA (1997–2017)

open access: yesИзвестия ТИНРО, 2018
Two periods are clearly distinguished within the last two decades (1997–2017) by several quantitative parameters of the plankton community in the northern shelf zone of the Okhotsk Sea: the period of high productivity in the 1997–2005 with the biomass of
A. F. Volkov
doaj   +1 more source

Cricket antennae shorten when bending (Acheta domesticus L.). [PDF]

open access: yes, 2014
Insect antennae are important mechanosensory and chemosensory organs. Insect appendages, such as antennae, are encased in a cuticular exoskeleton and are thought to bend only between segments or subsegments where the cuticle is thinner, more flexible, or
Bustamante, Jorge   +2 more
core   +2 more sources

State of plankton community in the Kuril waters under recent renewal of mass feeding northward migrations of subtropical fish

open access: yesИзвестия ТИНРО, 2017
State of plankton community was monitored in the Pacific waters at Kuril Islands in July-August 2016, in conditions of mass feeding migrations of subtropical fish.
Natalya A. Kuznetsova   +1 more
doaj   +1 more source

Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast [PDF]

open access: yesActa Amazonica, 2019
The relationships between fish size and sagitta otolith measurements were calculated for the first time for 15 species belonging to six families from the northern Brazilian coast.
Rory Romero de Sena OLIVEIRA   +7 more
doaj   +1 more source

Sagitta otolith of three demersal species in a tropical environment

open access: yesPapéis Avulsos de Zoologia, 2021
The objective of this study was to describe the morphology and morphometry of saggitta otoliths of Polydactylus virginicus, Menticirrhus cuiaranensis and Conodon nobilis in a tropical environment.
Crismen Santana de Oliveira   +3 more
doaj   +1 more source

Resonantly Enhanced Axion-Photon Regeneration [PDF]

open access: yes, 2007
We point out that photon regeneration-experiments that search for the axion, or axion-like particles, may be resonantly enhanced by employing matched Fabry-Perot optical cavities encompassing both the axion production and conversion magnetic field ...
A. A. Ansel’m   +5 more
core   +2 more sources

Current diversity of small mammals of the “Sarykum Barkhans” of Dagestan Reserve [PDF]

open access: yesBIO Web of Conferences, 2021
We studied the species diversity and abundance of small terrestrial mammals in the spring and autumn period of 2016-2019 in four groups of habitats of the protected area “Sarykum barkhans” of the Dagestan Nature Reserve: barkhan, floodplain forest ...
Gudova Marinat   +4 more
doaj   +1 more source

Inner ear morphology in the Atlantic molly Poecilia mexicana [PDF]

open access: yes, 2011
Fishes show an amazing diversity in hearing abilities, inner ear structures, and otolith morphology. Inner ear morphology, however, has not yet been investigated in detail in any member of the diverse order Cyprinodontiformes.
Hess, Martin   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy