Sex Dimorphism of C. aurantimaculata презентация

Natural History of Aurantimaculata Type habitat: Dibrughar Same area as C. bleheri Biotope not accesible First description: Musikasinthorn 2000

Слайд 1Sex Dimorphism of C. aurantimaculata


Слайд 2Natural History of Aurantimaculata
Type habitat: Dibrughar
Same area as C. bleheri
Biotope not

accesible
First description: Musikasinthorn 2000





Слайд 3Climate and Breeding habits
Hibernation
Harz/Zellmer-Hypothesis: „Channa of NE-India need a cold hibernation“
Winter:

water temperature < 19 C°
Spring/summer: water temp. increasing slowly to 25 C°



Слайд 4Channa with Sex Dimorphism
2001 – Breeding of C. sp. „lal

cheng“
„Schnieder-Hypothesis“:
different head shape
different coloring

Слайд 5Female
Pattern: only a few sprinkles on the side
Colour (body): larger vertical

stripes in orange/yellow
Colour (back & head): larger area of brown, less interrupted
Shape (body): larger circumference compared to male partner
Shape (head): extension of head between eye and gillcover

Sex Dimorphism of C. aurantimaculata


Слайд 6Sex Dimorphism of C. aurantimaculata
Pattern
Female only a few sprinkles on the

side



Слайд 7Sex Dimorphism of C. aurantimaculata
Colour
Female: larger vertical stripes in orange/yellow


Слайд 8Sex Dimorphism of C. aurantimaculata
Colour
Female: larger area of brown, less interrupted


Слайд 9Sex Dimorphism of C. aurantimaculata

Female: extension of head between eye and

gillcover


Слайд 10Sex Dimorphism of C. aurantimaculata
Shape of Body
Male: slim overall body shape


Слайд 11Sex Dimorphism of C. aurantimaculata
Resumee: Same differences – different sexes


Слайд 12Sex Dimorphism of C. aurantimaculata


Слайд 13Sex Dimorphism of C. aurantimaculata


Слайд 14All the pictures are copyrighted even if nothing specially is mentioned.

To all contributors thank you very much: - Dennis Hoffmann - Joerg Zollin - Matthias Schnieder - Specially we would like to express our thankfulness to Marc C. who has sent us the most important pics for these slides. Marc wants to be anonymous for the sake of keeping his fish in a country which prohibits this.
You can use this material for private, scientific, educational purposes without special notice, as long as you mention the source correctly. All other use must be asked for.

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