Some relations between rheotaxis and the rate of carbon dioxide production of Isopods.

Abstract

Examined the rheotactic reaction of isopods. The aim of the experiments was to determine the rate of carbon dioxide production of isopods and their resistance to relatively strong solutions of potassium cyanide, the effect of calcium ions upon carbon dioxide production and rheotaxis in isopods, and the relation between carbon dioxide production and rheotactic reactions of isopods. A biometer consisting of 2 chambers, was used. Controlled amounts of the required gas was introduced into the chamber after the S was placed in it. The reactions were then recorded. Concluded that certain conditions known to affect the animal metabolism also affected the rheotactic reaction of isopods. There was an inverse relation of potassium cyanide resistance and carbon dioxide production. Calcium ion decreased the carbon dioxide production, making them less positive in rheotactic reactions. (PsycINFO Database Record (c) 2006 APA, all rights reserved)