The oceans' biological pump (BP) exports large amounts of particulate organic carbon
(POC) to the mesopelagic zone (base of the euphotic zone–1000 m depth). The efficiency at …

Estimates of the ocean biological carbon pump are limited by uncertainties in the magnitude
of the physical injection of particulate and dissolved organic carbon to the ocean interior. A …

Algal carbon‐to‐nitrogen (C: N) and carbon‐to‐phosphorus (C: P) ratios are fundamental for
understanding many oceanic biogeochemical processes, such as nutrient flux and climate …

To better quantify the ocean's biological carbon pump, we resolved the diversity of sinking
particles that transport carbon into the ocean's interior, their contribution to carbon export …

Anaerobic oxidation of ammonium (anammox) in oxygen minimum zones (OMZs) is a major
pathway of oceanic nitrogen loss. Ammonium released from sinking particles has been …

Abstract The Southern Ocean, a region highly vulnerable to climate change, plays a vital
role in regulating global nutrient cycles and atmospheric CO2 via the biological carbon …

Until the 1980s, the deep sea was generally considered to be a particularly stable
environment, free from major temporal variations (Sanders, 1968). Studies in the abyssal …

The net primary productivity (NPP) of marine phytoplankton is∼ 50 Pg C year–1, and
roughly 10–20% of this NPP is exported out of the surface ocean as sinking particulate …

Sinking particulate flux out of the upper ocean is a key observation of the ocean's biological
carbon cycle. Particle flux in the upper mesopelagic is often determined using sediment …

The biological carbon pump (BCP) contributes to the oceanic CO 2 sink by transferring
particulate organic carbon (POC) into the deep ocean. The magnitude and efficiency of the …