Showing posts with label Colour differentiation. Show all posts
Showing posts with label Colour differentiation. Show all posts

Thursday, 23 October 2008

Colour differentiation



Just thought I would show you the differences in colour between Pike caught from a lake here in Kuru and one from the Baltic Sea. Many of the lakes in Southern Finland are quite dark due to run off from the thousands of bogs and Myers that litter the countryside and so most if not all of the Pike you catch are also extremely dark and lack much of the typical spots and stripes they acquire in cleaner water found further north or in the Baltic. What is distinctly noticeable though in many of these lake caught pike, are their wonderful orange bellies which contrast fantastically against their dark, but slightly mottled flanks.




I’m left wondering though, with darker water comes less visibility and with less visibility there isn’t much need for camouflage. Would this make pike more active in these conditions than they generally would need to be? Or would they still spend most of their time waiting in ambush areas for their intended quarry to come along.



One can see here that this Pike has all the traditional trademark patterns you’d expect from a clear water dwelling species as the Baltic pike. Its need to blend into its surroundings seems far more apparent than its darker cousin, thus provoking the question again in reverse. With clearer water and much better visibility, would this make pike less active and more prone to ambush tactics? Or would they still be as active knowing they would be more easily spotted by their intended prey?