Abstract: A connection device for connecting objects. The connection device includes a first elongated element with a first groove and a locking portion, a second elongated element with a second groove and a through hole, a spring member and a pin connected to the spring member, and an actuating member adapted for actuating the spring member and moving the pin.

Abstract: A system for culture and storage of benthic organisms in an aquatic environment including at least two containers for storing organisms, releasably interconnected and forming a stack in the height direction, at least two lines attached to the stack and connected to at least the upper portion of the stack, and a suspension device connected to the lines. The system may also include a working platform and raising/lowering device(s) for raising and lowering stacks. A method for handling containers for storage of benthic organisms in an aquatic environment is also disclosed.