Results 71 to 80 of about 7,426 (199)

Life after death in the pelagic: Non‐predatory zooplankton mortality and the “ghost carbon pump”

Limnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
Abstract The biological carbon pump is traditionally framed as a trophically mediated process in which zooplankton mortality is attributed mainly to predation, routing carbon through fecal pellets and higher trophic levels before export. Increasing evidence, however, shows that nonpredatory mortality—caused by different environmental stressors—accounts
Albert Calbet
wiley   +1 more source

Dissolved oxygen sensing using an optical fibre long period grating coated with hemoglobin [PDF]

, 2016
A long period grating fiber optic sensor coated with hemoglobin is used to detect dissolved oxygen. The sensitivity of this sensor to the ratio of dissolved carbon dioxide to dissolved oxygen is demonstrated via the conversion of carboxyhemoglobin to
James, Stephen W., Partridge, Matthew, Tatam, Ralph P.   +2 more
core   +1 more source

Shifting Trends in Aquaculture's Biological Potential to Address Food, Climate and Biodiversity Challenges

Fish and Fisheries, Volume 27, Issue 3, Page 740-753, May 2026.
ABSTRACT Aquaculture has expanded and intensified significantly since the mid‐20th century, affecting its contributions to food security, climate change and biodiversity conservation (FCB) outcomes. In particular, shifts in the composition of farmed species affect the sector's potential impacts on sustainable development.
Aleah Wong, Andrea Y. Frommel, U. Rashid Sumaila, William W. L. Cheung   +3 more
wiley   +1 more source

The Permian–Triassic transition in Türkiye: New insights and 3D outcrop models for accessible, reproducible and sustainable fieldwork

The Depositional Record, Volume 12, Issue 2, April 2026.
We studied the Permian–Triassic successions of south‐western Türkiye at five locations, synthesised sedimentological and palaeontological data, putting it into a consistent stratigraphic framework and incorporating 3D digital outcrop models. Abstract The Permian–Triassic transition is characterised by major environmental changes and the largest known ...
Baran Karapunar, Xia Wang, Stella Z. Buchwald, Anja B. Frank, Mónica Alejandra Gómez Correa, Müjde Gürsoy, Zhipeng Liu, Xuanni Xu, Lingzan Meng, Damla Demir, Erdal Koşun, Aymon Baud, William J. Foster   +12 more
wiley   +1 more source

Mechanisms driving glacial deep ocean deoxygenation

, 2022
Deep ocean deoxygenation inferred from proxies has been used to support the hypothesis that lower atmospheric carbon dioxide during glacial times was due to an increase in the strength of the ocean’s biological pump. This relies on the assumption that surface ocean oxygen (O2) is equilibrated with the atmosphere such that any O2 deficiency observed in ...
openaire   +2 more sources

Episodic photic zone euxinia in the northeastern Panthalassic Ocean during the end-Triassic extinction [PDF]

, 2014
Severe changes in ocean redox, nutrient cycling, and marine productivity accompanied most Phanerozoic mass extinctions. However, evidence for marine photic zone euxinia (PZE) as a globally important extinction mechanism for the end-Triassic extinction ...
Haggart, J. W., Kasprak, A. H., Price-Waldman, R., Schoepfer, S. D., Sepulveda, Julio C, Summons, Roger E, Ward, P. D., Whiteside, J. H., Williford, K. H.   +8 more
core   +1 more source

Characterization of the Shallow Oxygen Minimum Zone of the Eastern Tropical North Atlantic

Journal of Geophysical Research: Oceans, Volume 131, Issue 4, April 2026.
Abstract The Eastern Tropical North Atlantic (ETNA) hosts a shallow Oxygen Minimum Zone (sOMZ) extending roughly from 50 to 250 m depth, where oxygen concentrations typically fall to 40–60 μmol L−1. Despite its ecological and biogeochemical importance, the spatial and temporal characteristics of the hypoxic events that shape this sOMZ remain poorly ...
Cláudio Cardoso, Paulo H. R. Calil, Álvaro Peliz, Rui M. A. Caldeira   +3 more
wiley   +1 more source

Oceans and the Sustainable Development Goals: Co-Benefits, Climate Change & Social Equity [PDF]

, 2017
Achieving ocean sustainability is paramount for coastal communities and marine industries, yet is also inextricably linked to much broader global sustainable development—including increased resilience to climate change and improved social equity—as ...
Andrés Cisneros-Montemayor, Gerald Singh, William Cheung, Yoshitaka Ota   +3 more
core  

The energetic consequences of oxygen fluxes in a coral reef fish

Functional Ecology, Volume 40, Issue 4, Page 844-856, April 2026.
Abstract Ocean warming elevates metabolic rates in marine ectotherms but often constrains energetic resources, causing an imbalance between supply and demand. Transient hypoxia is near‐ubiquitous across the world's coral reefs and may exacerbate this imbalance, yet its effects on the energetics of reef fishes remain poorly understood. In this study, we
Daniel M. Ripley, Daniele D'Agostino, Daniela Denk, John A. Burt   +3 more
wiley   +1 more source

Climatic controls on metabolic constraints in the ocean [PDF]

Biogeosciences
Observations and models indicate that climate warming is associated with the loss of dissolved oxygen from the ocean. Dissolved oxygen is a fundamental requirement for heterotrophic marine organisms (except marine mammals) and, since the basal metabolism
P. Mongwe, P. Mongwe, M. Long, T. Ito, C. Deutsch, Y. Santana-Falcón   +5 more
doaj   +1 more source