The geographic isolation impact on evolution of some morpho-physiological features in the brown trout (Salmo trutta fario Linnaeus)
Journal Title: Aquaculture, Aquarium, Conservation & Legislation - International Journal of the Bioflux Society - Year 2009, Vol 2, Issue 1
Abstract
The researches made by our team have in view the bio-morphometric study of some brown trout populations. We aimed, on the one hand, to see the geographic and reproductive isolation impact and, on the other hand to highlight the environmental factors’ influence on morphological features in this species. The researches have in view three aquatic basins, known as sanctuaries of the brown trout, respectively Someş, Criş and Arieş. For the morphometric study were taken in calculus 14 body dimensions, which allow to analyze on scientific basis the intra-specific variability degree, to which we add also the estimation of some meristic features (number of red or black spots). All data were statistically processed using modern methods thereby the interpretation errors to be more reduced. The results are presented in tables included in our paper.
Authors and Affiliations
Ioan Bud, Istvan Dombi, Vlad Vlădău
Keywords
Related Articles
- EP ID EP129029
- DOI -
- Views 118
- Downloads 0
Studies on the physico-chemical characteristics and nutrients of a tropical rainforest river in southeast Nigeria
Investigation of the variations in fifteen physico-chemical variables and three nutrients in three stations along Ikpa River, Nigeria were conducted between March 2009 and February 2010. All the parameters measured showe...
Determination of chlorophyll a and total phosphorus abundance in organic manured fish ponds
An experiment was conducted for 6 weeks (between August and September 2010) with 4 treatments (T1: poultry manure, T2: cattle manure, T3: poultry and cattle manure and T4: control-no manure) assigned to 8 concrete ponds...
The effect of ascorbic acid on hatching performance and tolerance against environmental stressor (high temperature) by immersion of Prussian carp (Carassius gibelio) fertilized eggs
The aim of this study was to evaluate the influence of L-ascorbic acid (AA) in three levels (0,100, 1000 and 2000 mg L-1) on eyed egg and hatching rate, growth and viability of larva, and larval tolerance against high te...
Effect of natural zeolite on reducing tissue bioaccumulation and cadmium antagonism related to some mineral micro- and macronutrients in Prussian carp (Carassius gibelio).
Due to their interesting physico-chemical properties (i.e. cation-exchange capacity, adsorption, catalysis and dehydration), natural zeolites are useful in very different fields: agriculture, animal husbandry, chemical a...
Frequency and polymorphism of Hassall’s corpuscles in normal thymus of nutria (Myocastor coypus)
Thymus from three clinically healthy 12-month-old age nutria were collected and histologically processed. Microscopic examination showed that the thymus contains numerous Hassall’s corpuscles in various stages of develop...