Abstract: A seagrass planting system for planting seagrass segments within a subaquatic substrate may include a conveyance subassembly having a conveyance tube extending from a surface location to a subaquatic planter. A seagrass planting subassembly positioned on the subaquatic planter includes a diverter fluidly coupled to the conveyance tube, a plurality of planting guides each having a planting channel, a plurality of doors, and a plurality of insertion rams. The diverter selectively directs fluid flow to an exhaust port or to one of a plurality of fluidic pathways leading to the planting guides. During operation, the diverter sequentially directs fluid flow to the exhaust port during conveyance of a planting spike, to a selected fluidic pathway to position the planting spike within a planting channel against a door, and back to the exhaust port before opening the door and actuating an insertion ram to push the planting spike into the subaquatic substrate.

Abstract: A seagrass planting system that includes a planting spike. The planting spike includes: a tine end feature having a converging portion and a base portion having disposed thereon a seagrass securing mechanism for securing a seagrass segment; an alignment guide feature extending from the base portion, spanning from a first end to second end, and including a first alignment edge and a second alignment edge disposed on an area located between the first end and the second end; and force receiving feature extending at an angle relative to the second end.

Abstract: A seagrass planting system that includes a planting spike. The planting spike includes: a tine end feature having a converging portion and a base portion having disposed thereon a seagrass securing mechanism for securing a seagrass segment; an alignment guide feature extending from the base portion, spanning from a first end to second end, and including a first alignment edge and a second alignment edge disposed on an area located between the first end and the second end; and force receiving feature extending at an angle relative to the second end.

Abstract: An apparatus for receiving an analyte comprises two opposing housings that clamp onto a substrate. One of the housings includes passageways that deliver the analyte and optical signals to the substrate. Another one of the housings includes passageways that allow optical signals, which have passed through the substrate, to travel to photometric sensors which may be used to study the analyte or its effects. The apparatus may include a light guide that uniformly distributes light from a plurality of point emitters to multiple areas of the substrate. The apparatus may include an actuator assembly that opens and closes the two housing to allow for installation and removal of the substrate. The substrate may be carried in a cartridge that is removable from the two housings.