Results 91 to 100 of about 70,217 (318)

The peculiarities offish sex cycles and their ovary ripeness stages

Юг России: экология, развитие, 2015
All the ovogenesis and sex cycles peculiarities of the studied fishes are species-specific with biology particularity of different fishes including their reproductions.
N. I. Rabazanov, M. M. Shihshabekov, D. R. Aduyeva, G. Sh. Gadjimuradov, M. M. Nabiyev, D. M. Ramazanova   +5 more
doaj   +1 more source

Implications of fisheries during the spawning season for the sustainable management and recovery of depleted fish stocks: a conceptual framework

, 2009
Fishing during the spawning season may negatively affects the reproductive potential and reproductive dynamics of exploited fish stocks due to a variety of mechanisms such as the disturbance of the natural spawning behaviour, effects on the age, size and
Rijnsdorp, A.D.
core  

Depth and season‐related variability in fatty acid composition and lipid nutritional quality indices of farmed Mytilus galloprovincialis

Journal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Lipid quality is one of the most important indicators of the nutritional value of farmed mussels. In open‐coastal environments, factors such as cultivation depth and seasonal changes affect lipid dynamics, but their combined effects on lipid quality remain unclear.
Meryem Yeşim Çelik, Bayram Köstekli, Gülşen Uzun Gören, Zeynep Hasançavuşoğlu, Mümin Metehan Kılıç, Alihan Bülbül, Beyza Dündar   +6 more
wiley   +1 more source

Population Dynamics of the Widespread Alien Decapod Species, Brown Shrimp (Penaeus aztecus), in the Mediterranean Sea

Animals
This study investigated the population dynamics, growth, reproduction, and parasitism of Penaeus aztecus over a 27-month period in Antalya Bay (Eastern Mediterranean). P.
Mehmet Cengiz Deval, Tomris Deniz
doaj   +1 more source

AN ANALYSIS OF THE SPAWNING HABITS AND SPAWNING STIMULI OF CUMINGIA TELLINOIDES

The Biological Bulletin, 1927
1. The spawning season of Cumingia extends from the middle of June until the middle or end of September. The most active spawning usually includes the last week in June and ends about August 20. Each female spawns more than once and the production of gametes is practically continuous.2.
openaire   +3 more sources

Implications of fisheries during the spawning season for the sustainable management and recovery of depleted fish stocks: life history characteristics of several North Sea species

, 2009
Fish traders and NGOs have put the idea forward that in order to not disturb the spawning process and hence improve the reproductive success of a fish population one should stop fishing during the spawning period.
Rijnsdorp, A.D., van Overzee, H.M.J., Overzee, H.M.J., van   +2 more
core  

Revealing the Resonant Physics of Open Photonic Time Crystals

Laser &Photonics Reviews, EarlyView.
ABSTRACT Photonic time crystals (PTCs) are media whose permittivity is modulated periodically in time, enabling momentum bandgaps and parametric amplification of light. Their realization at the nanoscale can revolutionize the study of light‐matter interactions.
Adrià Canós Valero, Sergei Gladyshev, David Globosits, Stefan Rotter, Egor A. Muljarov, Thomas Weiss   +5 more
wiley   +1 more source

Urophysial and pituitary extracts for spawning induction in teleosts Extratos urofisário e hipofisário para indução da desova em teleósteos

Ciência Rural, 2000
Several studies have suggested that the caudal neurosecretory system could act on fish reproduction. The aim of this study was to compare the effect of urophysial extract (UE) and carp pituitary homogenate (CPH) on the induction of spawning in Hoplias ...
Everton Rodolfo Behr, Bernardo Baldisserotto, Walter Garcia Parra, Deodoro Atlante Brandão, Zolst Herke   +4 more
doaj   +1 more source

Efficient and Tunable Narrowband Second‐Harmonic Generation by a Large‐Area Etchless Lithium Niobate Metasurface

Laser &Photonics Reviews, EarlyView.
An etchless lithium niobate (LN) metasurface with a slanted periodic TiO2 grating enables efficient and narrowband second‐harmonic generation (SHG) thanks to the light confinement in the LN film granted by quasi‐bound‐state‐in‐the‐continuum (q‐BIC) modes.
Yaping Hou, Yigong Luan, Yu Fan, Alfonso Nardi, Attilio Zilli, Bobo Du, Jinyou Shao, Marco Finazzi, Chunhui Wang, Lei Zhang, Michele Celebrano   +10 more
wiley   +1 more source

Assessment of the impact of seasonal patterns climatic conditions on spawning events of the white bream Blicca bjoerkna (Linnaeus, 1758) in astronomical and biological time

Acta Biologica Sibirica, 2018
This paper describes spawning events of the white bream Blicca bjoerkna (Linnaeus, 1758 )in astronomical and biological time depending on seasonal patterns of climatic conditions.
D. Bondarev, O. Kunakh, O. Zhukov
doaj   +1 more source