Day 1: Images from the field
Images are coming in from field on the first day of the NOAA 2026 West Coast Ocean Acidification research mission.
Day 1: Images from the field Read More »
Biological Response
NOAA sets sail on landmark West Coast Ocean Acidification survey
The seventh West Coast Ocean Acidification (WCOA 2026) research cruise set sail to monitor ocean acidification and its impacts on marine resources.
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NCRMP mission assessed ocean acidification in American Samoa, Monument
The National Coral Reef Monitoring Program successfully completed all scientific operations on the first leg in American Samoa and Pacific Islands Heritage Marine National Monument to assess ocean acidification and coral reef health.
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Seawater Carbonate Chemistry Along the Hawaiian-Emperor Seamount Chain in the North Pacific
Reef-building deep-sea corals are facing new threats from climate change, including changes in ocean chemistry. These corals are especially vulnerable to increasing ocean acidity (i.e., ocean acidification). In the ocean, the aragonite saturation horizon (ASH) marks the depth below which waters become increasingly corrosive and deep-sea corals’ aragonite skeletons may dissolve. As ocean acidification progresses,
Within and Cross-Generational Effects of Elevated Seawater <em>p</em>CO<sub>2</sub> on Larval Bay Scallops <em>Argopecten irradians</eM>(L)
Bivalve larvae are highly susceptible to ocean acidification (OA), but there is little knowledge of the capacity of bivalve species to acclimate or adapt to changing ocean conditions. It is challenging to compare results among studies of OA reported in the literature, as there is little consistency among studies in water chemistry across OA treatments
Impacts of ocean acidification and altered prey fatty acids on the early development of northern rock sole (<em>Lepidopsetta polyxystra</em>) larvae
Ocean acidification (OA) is predicted to affect the physiological rates of larval fish and invertebrates and is also expected to significantly impact marine fisheries through alteration of food webs. We examined whether mortality rates, body size, and condition of first-feeding larval northern rock sole, Lepidopsetta polyxystra, were synergistically influenced by prey quality (essential fatty acids,
Ocean hypoxia: The science of climate change in the sea
The oxygen inventory of the global ocean is declining. This phenomenon, known as ocean deoxygenation, has emerged as a fundamental pathway for climate change to alter marine ecosystems. An important concern is how this global oxygen decline will manifest in coastal and oceanic systems that are already subject to low oxygen, or hypoxic conditions. There
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Anchors aweigh! Scientists depart for American Samoa, Pacific Islands Heritage Marine National Monument
NOAA scientists set sail this week from Hawai’i aboard the NOAA Ship Oscar Elton Sette headed for
American Samoa and the Pacific Islands Heritage Marine National Monument to monitor vital coral reef ecosystems.
OAP highlights progress on ocean acidification in 2025
The NOAA Ocean Acidification Program presents major highlights of ocean acidification research, monitoring and outreach over fiscal year 2025.
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Mothers know best: Maternal signaling boosts larval resilience under ocean acidification conditions
Bivalve aquaculture is a growing sector worldwide, producing sustainable animal protein to meet growing demand from consumers. Yet, the industry remains vulnerable to environmental changes that can impact their product across life stages, especially at the larval stage. Parental priming, or the exposure of broodstock to adverse environmental conditions as they undergo gametogenesis, holds promise
