FISH
SHELLFISH
PLANKTON

 

Biological Response

NOAA's Ocean Acidification Program supports research that focuses on economically and ecologically important marine species. Research of survival, growth, and physiology of marine organisms can be used to explore how aquaculture, wild fisheries, and food webs may change as ocean chemistry changes.


FISHERIES SCIENCE CENTERS

A number of NOAA National Marine Fisheries Service Science Centers have state-of-the-art experimental facilities to study the response of marine organisms to the chemistry conditions expected with ocean acidification.

The Northeast Fisheries Science Center has facilities at its Sandy Hook, NJ and Milford, CT laboratories; the Alaska Fisheries Science Centers at its Newport, OR and Kodiak, AK laboratories; and the Northwest Fisheries Science Center at its Mukilteo and Manchester, WA laboratories. All facilities can tightly control carbon dioxide and temperature. The Northwest Fisheries Science Center can also control oxygen, and can create variable treatment conditions for carbon dioxide, temperature, and oxygen. These facilities include equipment for seawater carbon chemistry analysis, and all use standard operating procedures for analyzing carbonate chemistry to identify the treatment conditions used in experiments.

 


Corals

Both deep sea and shallow reef-building corals have calcium carbonate skeletons.  As our oceans become more acidic, carbonate ions, which are an important part of calcium carbonate structures, such as these coral skeletons, become relatively less abundant. Decreases in seawater carbonate ion concentration can make building and maintaining calcium carbonate structures difficult for calcifying marine organisms such as coral.

 


Fish

Increased levels of carbon dioxide in our ocean can have a wide variety of impacts on fish, including altering behavior, otolith (a fish's ear bone) formation, and young fish's growth. Find out more about what scientists are learning about ocean acidification impacts on fish like rockfish, scup, summer flounder, and walleye pollock.


Shellfish

Shellfish, such as oyster, clams, crabs and scallop, provide food for marine life and for people, too. Shellfish make their shells or carapaces from calcium carbonate, which contains carbonate ion as a building block. The decreases in seawater carbonate ion concentration expected with ocean acidification can make building and maintaining calcium carbonate structures difficult for calcifying marine organisms like shellfish. This may impact their survival, growth, and physiology, and, thus, the food webs and economies that depend on them.


Plankton

Plankton are tiny plants and animals that many marine organisms, ranging from salmon to whales, rely on for nutrition. Some plankton have calcium carbonate structures, which are built from carbonate ions. Carbonate ions become relatively less abundant as the oceans become more acidic. Decreases in seawater carbonate ions can make building and maintaining shells and other calcium carbonate structures difficult for calcifying marine organisms such as plankton. Changes to the survival, growth, and physiology of plankton can have impacts throughout the food web.


OAP SUPPORTED BIOLOGICAL RESPONSE PROJECTS

Postdoctoral Opportunity: Biogeochemical Modelling

GEOMAR Helmholtz Centre for Ocean Research Kiel

GEOMAR is looking for candidates with a strong interest in Earth system modelling and model assessment. The research project will focus on the selection of indicators and development of metrics to assess a number of climate engineering ideas (such as afforestation, ocean alkalinisation, solar radiation management,…) in the context of mitigation. Tools will be developed and tested on the basis of model simulations of various climate engineering scenarios employing new and already existing runs of intermediate complexity (UVic) and complex Earth system (MPI-ESM) models. Metric development will account for model uncertainties (e.g. by analysing perturbed parameter ensembles) and include collaboration with scientists from other disciplines engaged in the Priority Program, such as social sciences, international law and ethics, and some readiness to engage in interdisciplinary work is required.

Wednesday, November 2, 2016

Postdoctoral Opportunity: Fisheries Oceanography and Eastern Boundary Upwelling Ecosystems

University of South Carolina

The University of South Carolina (Columbia, South Carolina, USA) and the Belle W. Baruch Institute for Marine and Coastal Sciences is seeking a postdoctoral fellow, funded by the Nippon Foundation-Nereus Program, to join our interdisciplinary team of researchers to explore the responses of forage fish populations in eastern boundary upwelling ecosystems to physical and biogeochemical variability associated with future climate change. The goal of the project is estimation of fisheries productivity given projected changes in upwelling intensity and seasonality, nutrient stoichiometry, acidification, and plankton production and composition.

Wednesday, October 12, 2016
Categories: Job Postings

Postdoctoral opportunity: NORTHERN GULF OF MEXICO inorganic carbon, pH, and oxygen DYNAMICS

University of Delaware

Applications are being accepted for a Postdoctoral Research Associate position at the School of Marine Science and Policy, the University of Delaware working with Dr. Wei-Jun Cai, available immediately. This NSF-funded project focuses on the dynamics of inorganic carbon, pH, and oxygen as well as the interactions between ocean acidification and coastal ocean eutrophication in the Mississippi River plume and Northern Gulf of Mexico hypoxic region.

Wednesday, September 14, 2016
RSS