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Beef with most field guides.


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#1 Guest_Charlotteguy101_*

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Posted 03 October 2006 - 10:48 PM

I was wondering if anyone else had this problem or can offer a solution.

It kinda ticks me off how most of the north american fish field guides only show the species native range. I mean I understand its importance and i respect that, but that dosent help me in a real world situation. I mean im not fully supportive of the fact that fish get moved and take over, i think it kills out some of the original native species, but then again the invading fish species do end up succesfully inhabiting the waters they are introduced in and therefore i think it is important to represent that. To do otherwise kind of seems like the old moral about ignoring the elephant in the dining room ya know? For one example... I spent hours trying to figure out what kind of sunfish I had and was thinking i was crazy or found some subspecies/hybrid until i finally found out it was a green sunfish after checking the ones outside of my range.

Does anyone know of any books that show either present range or both original and present range of species?

#2 Guest_Brooklamprey_*

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Posted 03 October 2006 - 11:12 PM

I'm not sure of any field guides that will cover NAS species well...... but this database does:
http://nas.er.usgs.gov/

This is an invaluable resource to all that collect Native fishes.

Example of how it is usefull can be found here (Using green sunfish as an example):
http://nas.er.usgs.g...p?speciesID=380

Click on the distribution map itself and you can then access specific locality data using a variety of options to pin point specific introduced populations.

This is a very detailed database of introduced species




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