RESPIRE Trap

The RESPIRE (Respiration of Sinking Particles In the subsuRface ocEan) is a particle interceptor/incubator that allows to non-intrusively intercept settling particles at fixed depths, and immediately incubate them within this device at the in situ pressure and temperature. RESPIRE provides rates of remineralization by particle-attached bacteria based on an oxygen consumption time-series (Boyd et al. 2015; Bressac et al. 2019).

Deployment of RESPIRE trap.
Photo: Matthieu Bressac

References

Boyd, P.W., et al. (2015) RESPIRE: An in situ particle interceptor to conduct particle remineralization and microbial dynamics studies in the oceans’ Twilight Zone. Limnology and Oceanography: Methods. doi:10.1002/lom3.10043.

Bressac, M., et al. (2019) Resupply of mesopelagic dissolved iron controlled by particulate iron composition. Nature Geoscience. doi:10.1038/s41561-019-0476-6.