Le r�gime alimentaire des poissons est d'une importance capitale dans les processus de r�gulation des �cosyst�mes aquatiques, car il ne d�note pas tant la disponibilit� de la nourriture distribu�e dans l'habitat que les choix effectu�s par les individus. Cette �tude a �t� r�alis�e dans deux cours d'eau situ�s dans le bassin hydrographique du Peixe - Boi / PA, � diff�rents stades d'anthropisation, dans le but de comparer le r�gime alimentaire de l'ichtyofaune, de classer les esp�ces analys ...
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Le r�gime alimentaire des poissons est d'une importance capitale dans les processus de r�gulation des �cosyst�mes aquatiques, car il ne d�note pas tant la disponibilit� de la nourriture distribu�e dans l'habitat que les choix effectu�s par les individus. Cette �tude a �t� r�alis�e dans deux cours d'eau situ�s dans le bassin hydrographique du Peixe - Boi / PA, � diff�rents stades d'anthropisation, dans le but de comparer le r�gime alimentaire de l'ichtyofaune, de classer les esp�ces analys�es selon leurs habitudes alimentaires en carnivores, herbivores et omnivores, d'identifier l'origine des �l�ments dont ces animaux se nourrissent, qu'ils soient allochtones ou autochtones, et de caract�riser la fa�on dont ces observations peuvent �tre faites par rapport aux esp�ces de poissons pr�sentes dans les cours d'eau. L'importance absolue des aliments peut �tre d�duite en fonction du degr� d'int�grit� des masses d'eau. Le contenu stomacal de 58 individus a �t� analys�. Chaque �l�ment a �t� pes� et identifi� jusqu'au plus petit taxon possible, ce qui a permis de calculer leur fr�quence d'occurrence (Fi), l'indice d'analyse volum�trique (Vi) et l'indice d'importance absolue (AIi).
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Fine. Text in French. Trade paperback (US). Glued binding. 64 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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New. Text in French. Trade paperback (US). Glued binding. 64 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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Fine. Text in French. Trade paperback (US). Glued binding. 64 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.
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Seller's Description:
New. Text in French. Trade paperback (US). Glued binding. 64 p. In Stock. 100% Money Back Guarantee. Brand New, Perfect Condition, allow 4-14 business days for standard shipping. To Alaska, Hawaii, U.S. protectorate, P.O. box, and APO/FPO addresses allow 4-28 business days for Standard shipping. No expedited shipping. All orders placed with expedited shipping will be cancelled. Over 3, 000, 000 happy customers.