Research Article

Covariations between Shell-Growth Parameters and the Control of the Ranges of Variation of Functionally Relevant Shell-Shape Parameters in Bivalves: A Theoretical Approach

Table 1

The signs of the variations, , , , , , , , and , of the functionally relevant parameters, , , and , according to variations of the growth-based parameters , , and (according to Section 2).

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>0 <0>0
<0 =0>0
>0 >0 <0