Physiological rates in different classes of sizes of Perna perna (Linnaeus, 1758) submmited to experimental loboratory conditions

Brazilian Journal of Biology

C. Resgalla Jr.²  E. S. Brasil²  L. C. Salomão¹ 

[1] ,UNIVALI CTTMar Itajaí SC ,Brazil

关键词: Perna perna;    physiology;    acclimatization;    respiration;    clearance;    excretion;    absorption efficiency;    Perna perna;    fisiologia;    aclimatação;    respiração;    clareamento;    excreção;    eficiência de absorção;   

DOI  :  10.1590/S1519-69842006000200015

来源: SciELO

【 摘 要 】

Physiological studies of the mussel Perna perna in Brazil are almost 30 years behind those of other, more exhaustively investigated species, such as Mytilus edulis. Little is known about the variations in physiological rates due to size and the consequences of maintaining P. perna in laboratory conditions. This work investigated the variations in respiration, clearance, excretion and absorption efficiency rates of P. perna, classified by size and acclimatized in a laboratory, monitoring the mussels’ respiration rates and biometry over a period of 30 days, in laboratory conditions. The respiration, clearance and excretion rates presented an allometric relation with the dry weight of the organisms, with b values of 0.66, 0.48 and 0.91 respectively. On the other hand, these same rates, when considered by weight (specific rates) showed a relationship that was inverse to the size of the organisms. Only the absorption efficiency was independent of the weight of the mussel. In terms of acclimatization, it was observed that it takes 10 days for the respiration rate of the mussel P. perna to stabilize in laboratory conditions, after which it follows a routine metabolism.

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License