تأثير نوع السطوح و الألوان على التصاق و نمو يرقات البرنقيل Balanus amphitrite Darwen (Cirripedia ; Thoracica)‎

Abstract EN

Influence of surface on the settlement and grow of cyprid larvae of barnacles Balanus amphitrite was studied for the period from July to September by using three types of surface plats : Iron, frosted wood and glass.

The result was revealed high average of settlement on Iron then glass while less average of settlement on frosted wood.

Also studied the influence of surface color on the settlement of cyprid larvae by using panels of painted surface, above mentioned, six different color: Black, Red, Blow, Green, yellow and white.

The results showed discrimination cyprid larvae the difference between dark and light, thus confirming the negative phototaxis in larval settlement.

Recording the highest average of settlement on glass and Iron plats painted with black color 345, 116 respectively.

While lowest settlement on glass and Iron plats painted with green color 8, 5.

While highest average of settlement on frosted wood painted with yellow color 131 and lowest average of settlement on frosted wood painted with white color 2.