Escuela de Ciencias. Una vez transcurridos siete meses de cultivo y con una talla aproximada de 7 cm, P. Efficiency, condition index and reproductive effort of the green mussel Perna viridis in bottom culture in the Gulf of Cariaco, Sucre state, Venezuela. The condition index, yield and reproductive effort of Perna viridis in bottom culture in the Gulf of Cariaco were evaluated.
Seeds with antero-posterior length Fortnightly temperature records were obtained of chlorophyll a, salinity, oxygen, and total and organic seston. Monthly evaluations were performed dissecting the tissues muscle, gonads and other tissues and determining the length of the shell on its dorsal-ventral axis to estimate growth.
The gonad weight exerted a marked infl uence on condition index, reproductive effort and meat yield, as these indices reached their highest values in the months when there was greater gonad production. The latter was associated to food abundance in the environment. In general, P. The gonad weight exerted and marked infl uence on the condition index, yield and reproductive effort reached their maximum values in the months when there was greater gonad production associated with food present in the medium.
After 7 months of culture and with a size of about 7 cm, P. Keyword: Growth, bottom culture, environmental factors, physiological indices, green mussel. La potencialidad de P. Experiencia de cultivo. Luego de dejarlos a temperatura ambiente en un desecador por 15 min. Esfuerzo reproductivo. Dichas muestras se tomaron manualmente, mediante buceo autonomo, teniendo el mayor cuidado de no interferir con el medio.
Para el analisis de clorofi la a se empleo el metodo espectrofotometrico, mientras que la determinacion del seston se realizo mediante tecnicas gravimetricas descritas en Strickland y Parsons En la zona de cultivo fue colocado un termografo electronico Minilog-Vemco, Canada para registrar la temperatura a intervalos de 30 min.
