The current invention refers to larval growth or the closing device of general aquatic organisms, which will allow the diversification of aquaculture. This device can be assembled In particular, the present invention is a closure device, which can keep the larva of many marine / aquatic organisms in a closed state in their natural environment, so as to develop the larva's morphology, maturity and settlement process.They will be the seeds of young people or the pre industrial stage. The device also allows general aquatic organisms to be enclosed to promote their growth and growth. The present invention also relates to a culture system and method including the use of the sealing device.La presente invencion se refiere a un dispositivo de confinamiento para cultivo larval o de organismos acuaticos en general, que permitiria la diversificacion de la acuicultura. El dispositivo es ensamblable y apilable. En particular, la presente invencion se refiere a un dispositivo de confinamiento que permite mantener larvas de multiples organismos marinos/acuaticos en condicion de confinamiento en su medio ambiente natural, con el fin de desarrollar el proceso de metamorfosis, maduracion y asentamiento, de larvas que posteriormente, se convertiran en juveniles o semillas para etapa de pre-engorde industrial. El dispositivo tambien permite el confinamiento de organismos acuaticos en general, facilitando su desarrollo, en cultivo. La presente invencion tambien se refiere a un sistema y metodo de cultivo que comprende el uso de dicho dispositivo de confinamiento.