Results 101 to 110 of about 3,896,690 (244)

Variability in spawning frequency and reproductive development of the narrow-barred Spanish mackerel (Scomberomorus commerson) along the west coast of Australia [PDF]

open access: yes, 2004
The narrow-barred Spanish mackerel (Scomberomorus commerson) is widespread throughout the Indo-West Pacific region. This study describes the reproductive biology of S.
Gaughan, Daniel J.   +3 more
core  

Effects of Hydro-Alcoholic Extract of Withania Coagulans on Antioxidant Status and Sperm Parameters Following Testosterone Administration in Rat

open access: yesMajallah-i Dānishgāh-i ’Ulūm-i Pizishkī-i Īlām, 2018
Introduction: Enhancement of testosterone levels or its improper and arbitrary usage can disrupt fertility. Today, application of medicinal herbs is considered to treat hormonal disorders and infertility.
Maryam Sarbishegi, Ozra Khajavi
doaj  

Fecundity, gonadosomic index and spawning period of Chrysichthys nigrodigitatus of the Lower Cross River, Nigeria [PDF]

open access: yes, 2013
The estuarine catfish, Chrysichthys nigrodigitatus, is a prized food fish in Nigeria especially in the Niger Delta region. There is a growing concernrn over the sustainability of the fishery in the face of climate change and environmental variability ...
Ama-Abasi, D., Sambo, U.
core  

Reproductive traits and population structure of Astyanax aeneus (Characiformes: Characidae) from a subtropical river in Mexico

open access: yesRevista de Biología Tropical, 2013
Champotón River is an unknown area within the Mesoamerican hotspot in Southestern México. Reproductive traits and population structure of Astyanax aeneus were analyzed along an environmental gradient of the upper, middle and lower sections of the river ...
Patricia Trujillo-Jiménez   +3 more
doaj  

Effect of Insecticide Dichlorvos on Ovaries of Mosquito Fish Gambusia affinis (Baird and Girard)

open access: yesمجلة بغداد للعلوم, 2011
The toxicity of insecticide dichlorvos (90%) was tested in ovaries of mosquito fish using three sublethal concentrations (0.3, 0.6, 0.8 µg/L) and studied their effects on the means of body and ovary weights, gonadosomatic index, ovum size and ova number.
Baghdad Science Journal
doaj   +1 more source

Fluctuation of gonadosomatic index during oocyte development in the narrow-clawed crayfish Astacus leptodactylus (Eschscholtz, 1823) in Aras Dam Lake, Iran [PDF]

open access: yes, 2014
This study was carried out with the aim of examining the seasonal reproductive cycle of the female crayfish Astacus leptodactylus from Aras Dam Lake, Western-Azerbaijan, Iran.
Asadpour-Ousalou, Y.A.   +6 more
core  

Length-weight relationship, condition factor and gonado-somatic index of Labeo calbasu (Hamilton, 1822)

open access: yesJournal of Fisheries, 2018
An attempt was made to study dynamics of length-weight relationship (LWR), relative condition factor (Kn) and gonado-somatic index (GSI) of Labeo calbasu from the wetlands of South 24 Parganas district of West Bengal, India. A total of 275 fish specimens
E Vahneichong   +3 more
doaj  

Social and reproductive physiology and behavior of the Neotropical cichlid fish Cichlasoma dimerus under laboratory conditions

open access: yesNeotropical Ichthyology
In this work we describe for the first time the social and reproductive behavior of the Neotropical fish Cichlasoma dimerus (Heckel, 1840) [Perciformes: Cichlidae], endemic to the Paraná River basin, using a comprehensive-integral approach, including ...
Felipe Alonso   +3 more
doaj   +1 more source

Dataset on reproductive status of ovary mud crab at different salinity levels

open access: yesData in Brief, 2019
This article investigated how crabs responded to different culture salinities through ovarian maturation stages using combination of external morphology (ovarian coloration and gonadosomatic index), and histological assessment (oocyte structures and ...
Adnan Amin-Safwan   +7 more
doaj   +1 more source

Reproduction, age and growth of the Indian mackerel, Rastrelliger kanagurta (Cuvier, 1816) from Sofala Bank, Mozambique [PDF]

open access: yes, 1985
A compilation of all the available information on the main small pelagic fish resources of Mozambican waters is presented. Resource data on distribution areas, reproduction, age, growth and stock size are described.
Gislason, H., Sousa, M.I.
core  

Home - About - Disclaimer - Privacy