WEIHS: RESPIRATION AND DEPTH CONTROL IN ENGRAUUS MORDAX 



Figure l . — Schematic description of model and spherical coordinate system centered on the center of mass of a northern anchovy larva: 

 a is the radius of an equivalent sphere of equal surface area (not to scale), I is the larval length, and b and I are the average tail strip 

 depth and length. 



Jd = -pDcQ 



Anr^— erfc 



^2y/Dt 



(9) 



and when r = a, this simplifies to 



2/1 1 



Jd = AnpDcQa'^ (— + 



° 2VDt^ 



(10) 



Equation (10) consists of two terms in the brack- 

 ets, multiplied by a constant factor. The first term 

 in the brackets is the constant, time-independent 

 contribution while the second describes the initial 



111 



