8,936 Works

(Table 1) Comparison of Mg/Ca with δ¹⁸O ratios for three distict intervals of ODP SIte 207-1258

Oliver Friedrich, Jochen Erbacher, Kazuyoshi Moriya, Paul A Wilson & Henning Kuhnert
Sediment depth is given in mcd.

Seawater carbonate chemistry, survival, metamorphosis and respiration rate of coral Acropora digitifera during experiments, 2011, supplement to: Nakamura, Masoko; Ohki, Shun; Suzuki, Atsushi; Sakai, Kazuhiko (2011): Coral Larvae under Ocean Acidification: Survival, Metabolism, and Metamorphosis. PLoS ONE, 6(1), e14521

Masoko Nakamura, Shun Ohki, Atsushi Suzuki & Kazuhiko Sakai
Ocean acidification may negatively impact the early life stages of some marine invertebrates including corals. Although reduced growth of juvenile corals in acidified seawater has been reported, coral larvae have been reported to demonstrate some level of tolerance to reduced pH. We hypothesize that the observed tolerance of coral larvae to low pH may be partly explained by reduced metabolic rates in acidified seawater because both calcifying and non-calcifying marine invertebrates could show metabolic depression...

Field measurements of snow and ice thicknesses and freeboard on the landfast ice of the Atka Bay near the Ekström ice shelf in Antarctica in 2010, Version 1

Mario Hoppmann, Marcel Nicolaus & Holger Schmithüsen
Version 1, 2011-07-06. Please refer to the newest Version (see "Replaced by" reference).

Light absorption and phytoplankton biomass in the Black Sea in spring 1995, supplement to: Churilova, T Ya (2001): Light absorption by phytoplankton and detritus in the Black Sea in spring. Translated from Okeanologiya, 2001, 41(5), 719-727, Oceanology, 41(5), 687-695

T Ya Churilova
Spectra of light absorption by suspended matter, phytoplankton, and detritus in the central and coastal parts of the Black Sea over the spring period (March-April 1995) were determined. Vertical homogeneity of the upper 40 m layer with respect to parameters in study was noted. Value of light absorption by phytoplankton normalized with respect to chlorophyll a was virtually independent of chlorophyll a concentration. A linear relationship between light absorption by phytoplankton and chlorophyll a concentration...

Seawater carbonate chemistry and accumulation of radiotracers in whole egg strand of squid, Loligo vulgaris during 26 days of exposure, 2011

Thomas Lacoue-Labarthe, E Reveillac, F Oberhänsli, Jean-Louis Teyssié, Ross Jeffree & Jean-Pierre Gattuso
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI).

Seawater carbonate chemistry and biological processes of mussel Crassostrea gigas during experiments, 2011, supplement to: Lannig, Gisela; Eilers, Silke; Pörtner, Hans-Otto; Sokolova, Inna A; Bock, Christian (2010): Impact of ocean acidification on energy metabolism of oyster, Crassostrea gigas—Changes in metabolic pathways and thermal response. Marine Drugs, 8(8), 2318-2339

Gisela Lannig, Silke Eilers, Hans-Otto Pörtner, Inna A Sokolova & Christian Bock
Climate change with increasing temperature and ocean acidification (OA) poses risks for marine ecosystems. According to Pörtner and Farrell [1], synergistic effects of elevated temperature and CO2-induced OA on energy metabolism will narrow the thermal tolerance window of marine ectothermal animals. To test this hypothesis, we investigated the effect of an acute temperature rise on energy metabolism of the oyster, Crassostrea gigas chronically exposed to elevated CO2 levels (partial pressure of CO2 in the seawater...

Seawater carbonate chemistry, nutrients and growth rate during experiments with coral Astrangia poculata and field observations, 2010

Michael Holcomb, Daniel C McCorkle & Anne L Cohen
Zooxanthellate colonies of the scleractinian coral Astrangia poculata were grown under combinations of ambient and elevated nutrients (5 µM NO, 0.3 µM PO4, and 2nM Fe) and CO2 (780 ppmv) treatments for a period of 6 months. Coral calcification rates, estimated from buoyant weights, were not significantly affected by moderately elevated nutrients at ambient CO2 and were negatively affected by elevated CO2 at ambient nutrient levels. However, calcification by corals reared under elevated nutrients combined...

Seawater carbonate chemistry and shell length of northern abalone (Haliotis kamtschatkana) during experiments, 2011, supplement to: Crim, Ryan N; Sunday, Jennifer M; Harley, Christopher D G (2011): Elevated seawater CO2 concentrations impair larval development and reduce larval survival in endangered northern abalone (Haliotis kamtschatkana). Journal of Experimental Marine Biology and Ecology, 400(1-2), 272-277

Ryan N Crim, Jennifer M Sunday & Christopher D G Harley
Increasing levels of anthropogenic carbon dioxide in the world's oceans are resulting in a decrease in the availability of carbonate ions and a drop in seawater pH. This process, known as ocean acidification, is a potential threat to marine populations via alterations in survival and development. To date, however, little research has examined the effects of ocean acidification on rare or endangered species. To begin to assess the impacts of acidification on endangered northern abalone...

Seawater carbonate chemistry and energy status in the periwinkle Littorina littorea during experiments, 2011, supplement to: Melatunan, Sedercor; Calosi, Piero; Rundle, Simon; Moody, A John; Widdicombe, Stephen (2011): Exposure to elevated temperature and pCO2 reduces respiration rate and energy status in the periwinkle Littorina littorea. Physiological and Biochemical Zoology, 84(6), 583-594

Sedercor Melatunan, Piero Calosi, Simon Rundle, A John Moody & Stephen Widdicombe
In the future, marine organisms will face the challenge of coping with multiple environmental changes associated with increased levels of atmospheric Pco2, such as ocean warming and acidification. To predict how organisms may or may not meet these challenges, an in-depth understanding of the physiological and biochemical mechanisms underpinning organismal responses to climate change is needed. Here, we investigate the effects of elevated Pco2 and temperature on the whole-organism and cellular physiology of the periwinkle...

Seawater carbonate chemistry and biological processes of sand dollars Dendraster excentricus during experiments, 2011, supplement to: Chan, Kit Yu Karen; Grünbaum, Daniel; O'Donnell, Michael J (2011): Effects of ocean-acidification-induced morphological changes on larval swimming and feeding. Journal of Experimental Biology, 214(22), 3857-3867

Kit Yu Karen Chan, Daniel Grünbaum & Michael J O'Donnell
Reduction in global ocean pH due to the uptake of increased atmospheric CO2 is expected to negatively affect calcifying organisms, including the planktonic larval stages of many marine invertebrates. Planktonic larvae play crucial roles in the benthic-pelagic life cycle of marine organisms by connecting and sustaining existing populations and colonizing new habitats. Calcified larvae are typically denser than seawater and rely on swimming to navigate vertically structured water columns. Larval sand dollars Dendraster excentricus have...

Seawater carbonate chemistry and biological processes of coral Acropora muricata during experiments and observations in La Saline fringing reef, La Reunion Island, western Indian Ocean, 2011, supplement to: Chauvin, Anne; Denis, Vianney; Cuet, Pascale (2011): Is the response of coral calcification to seawater acidification related to nutrient loading? Coral Reefs, 30(4), 911-923

Anne Chauvin, Vianney Denis & Pascale Cuet
The effect of decreasing aragonite saturation state (Omega Arag) of seawater (elevated pCO2) on calcification rates of Acropora muricata was studied using nubbins prepared from parent colonies located at two sites of La Saline reef (La Réunion Island, western Indian Ocean): a back-reef site (BR) affected by nutrient-enriched groundwater discharge (mainly nitrate), and a reef flat site (RF) with low terrigenous inputs. Protein and chlorophyll a content of the nubbins, as well as zooxanthellae abundance,...

Seawater carbonate chemistry and biological processes of Amphisorus hemprichii, Amphisorus kudakajimensis and Calcarina gaudichaudii during experiments, 2011, supplement to: Hikami, Mana; Ushie, Hiroyuki; Irie, Takahiro; Fujita, Kazuhiko; Kuroyanagi, Azumi; Sakai, Kazuhiko; Nojiri, Yukihiro; Suzuki, Atsushi; Kawahata, Hodaka (2011): Contrasting calcification responses to ocean acidification between two reef foraminifers harboring different algal symbionts. Geophysical Research Letters, 38, L19601

Mana Hikami, Hiroyuki Ushie, Takahiro Irie, Kazuhiko Fujita, Azumi Kuroyanagi, Kazuhiko Sakai, Yukihiro Nojiri, Atsushi Suzuki & Hodaka Kawahata
Ocean acidification, which like global warming is an outcome of anthropogenic CO2emissions, severely impacts marine calcifying organisms, especially those living in coral reef ecosystems. However, knowledge about the responses of reef calcifiers to ocean acidification is quite limited, although coral responses are known to be generally negative. In a culture experiment with two algal symbiont-bearing, reef-dwelling foraminifers, Amphisorus kudakajimensis and Calcarina gaudichaudii, in seawater under five different pCO2 conditions, 245, 375, 588, 763 and 907...

Seawater carbonate chemistry, nutrient uptake and biological processes of coral Stylophora pistillata during experiments, 2011, supplement to: Godinot, Claire; Houlbrèque, Fanny; Grover, Renaud; Ferrier-Pagès, Christine (2011): Coral uptake of inorganic phosphorus and nitrogen negatively affected by simultaneous changes in temperature and pH. PLoS ONE, 6(9), e25024

Claire Godinot, Fanny Houlbrèque, Renaud Grover & Christine Ferrier-Pagès
The effects of ocean acidification and elevated seawater temperature on coral calcification and photosynthesis have been extensively investigated over the last two decades, whereas they are still unknown on nutrient uptake, despite their importance for coral energetics. We therefore studied the separate and combined impacts of increases in temperature and pCO2 on phosphate, ammonium, and nitrate uptake rates by the scleractinian coral S. pistillata. Three experiments were performed, during 10 days i) at three pHT...

Seawater carbonate chemistry, nutrients and growth rate of coral (Acropora intermedia) and coral-reef seaweed (Lobophora papenfussii) during experiments, 2011, supplement to: Diaz-Pulido, Guillermo; Gouezo, Marine; Tilbrook, Bronte; Dove, Sophie; Anthony, Kenneth R N (2011): High CO2 enhances the competitive strength of seaweeds over corals. Ecology Letters, 14(2), 156-162

Guillermo Diaz-Pulido, Marine Gouezo, Bronte Tilbrook, Sophie Dove & Kenneth R N Anthony
Space competition between corals and seaweeds is an important ecological process underlying coral-reef dynamics. Processes promoting seaweed growth and survival, such as herbivore overfishing and eutrophication, can lead to local reef degradation. Here, we present the case that increasing concentrations of atmospheric CO2 may be an additional process driving a shift from corals to seaweeds on reefs. Coral (Acropora intermedia) mortality in contact with a common coral-reef seaweed (Lobophora papenfussii) increased two- to threefold between...

Seawater carbonate chemistry and biological processes of bivalve shellfish Mercenaria mercenaria and Argopecten irradians during experiments, 2011, supplement to: Talmage, Stephanie C; Gobler, Christopher J (2010): Effects of past, present, and future ocean carbon dioxide concentrations on the growth and survival of larval shellfish. Proceedings of the National Academy of Sciences of the United States of America, 107(40), 17246-17251

Stephanie C Talmage & Christopher J Gobler
The combustion of fossil fuels has enriched levels of CO2 in the world's oceans and decreased ocean pH. Although the continuation of these processes may alter the growth, survival, and diversity of marine organisms that synthesize CaCO3shells, the effects of ocean acidification since the dawn of the industrial revolution are not clear. Here we present experiments that examined the effects of the ocean's past, present, and future (21st and 22nd centuries) CO2concentrations on the growth,...

Seawater carbonate chemistry and protein and chlorophyll a content per nubbin of Acropora muricata during observations of La Saline fringing reef, La Reunion Island, western Indian Ocean, 2011

Anne Chauvin, Vianney Denis & Pascale Cuet
The effect of decreasing aragonite saturation state (Omega Arag) of seawater (elevated pCO2) on calcification rates of Acropora muricata was studied using nubbins prepared from parent colonies located at two sites of La Saline reef (La Réunion Island, western Indian Ocean): a back-reef site (BR) affected by nutrient-enriched groundwater discharge (mainly nitrate), and a reef flat site (RF) with low terrigenous inputs. Protein and chlorophyll a content of the nubbins, as well as zooxanthellae abundance,...

Surface seawater carbonate chemistry, nutrients and phytoplankton community composition on a transect between North Sea and Arctic Ocean, 2008, supplement to: Charalampopoulou, Anastasia; Poulton, Alex J; Tyrrell, Toby; Lucas, Mike (2011): Irradiance and pH affect coccolithophore community composition on a transect between the North Sea and the Arctic Ocean. Marine Ecology Progress Series, 431, 25-43

Anastasia Charalampopoulou, Alex J Poulton, Toby Tyrrell & Mike Lucas
This data was collected during the 'ICE CHASER' cruise from the southern North Sea to the Arctic (Svalbard) in July-Aug 2008. This data consists of coccolithophore abundance, calcification and primary production rates, carbonate chemistry parameters and ancillary data of macronutrients, chlorophyll-a, average mixed layer irradiance, daily irradiance above the sea surface, euphotic and mixed layer depth, temperature and salinity.

Seawater carbonate chemistry and boron incorporation of planktic foraminifer Orbulina universa during experiments, 2011, supplement to: Allen, Katherine A; Hönish, Bärbel; Eggins, Stephen M; Yu, Jimin; Spero, Howard J; Elderfield, Henry (2011): Controls on boron incorporation in cultured tests of the planktic foraminifer Orbulina universa. Earth and Planetary Science Letters, 309(3-4), 291-301

Katherine A Allen, Bärbel Hönish, Stephen M Eggins, Jimin Yu, Howard J Spero & Henry Elderfield
Culture experiments with living planktic foraminifers reveal that the ratio of boron to calcium (B/Ca) in Orbulina universa increases from 56 to 92 µmol mol-1 when pH is raised from 7.61 +/- 0.02 to 8.67 +/- 0.03 (total scale). Across this pH range, the abundances of carbonate, bicarbonate, and borate ions also change (+ 530, - 500, and + 170 µmol kg-1, respectively). Thus specific carbonate system control(s) on B/Ca remain unclear, complicating interpretation of...

Seawater carbonate chemistry and impacts of calcium and carbonate ion concentration on Mg and Sr incorporation in cultured benthic foraminifera (Ammonia tepida and Heterostegina depressa), 2011, supplement to: Dueñas-Bohórquez, Adriana; Raitzsch, Markus; de Nooijer, Lennart Jan; Reichart, Gert-Jan (2011): Independent impacts of calcium and carbonate ion concentration on Mg and Sr incorporation in cultured benthic foraminifera. Marine Micropaleontology, 81(3-4), 122-130

Adriana Dueñas-Bohórquez, Markus Raitzsch, Lennart Jan de Nooijer & Gert-Jan Reichart
Laboratory culture experiments were conducted to determine effects of seawater carbonate ion concentration ([CO32-]), and thereby calcite saturation state, on Mg and Sr incorporation into calcite of two species of shallow-water benthic foraminifera: Ammonia tepida and Heterostegina depressa. Impact on Mg and Sr incorporation by increased seawater [CO32-] and thereby higher calcite saturation state, is absent in either species. Comparison to results from a similar culturing experiment, in which calcite saturation state was varied as...

Seawater carbonate chemistry and hydrogen ions and carbonate chemistry in calcifying fluid of coral Astrangia poculata during experiments, 2011, supplement to: Ries, Justin B (2011): A physicochemical framework for interpreting the biological calcification response to CO2-induced ocean acidification. Geochimica et Cosmochimica Acta, 75(14), 4053-4064

Justin B Ries
A generalized physicochemical model of the response of marine organisms' calcifying fluids to CO2-induced ocean acidification is proposed. The model is based upon the hypothesis that some marine calcifiers induce calcification by elevating pH, and thus Omega aragonite, of their calcifying fluid by removing protons (H+). The model is explored through two end-member scenarios: one in which a fixed number of H+ is removed from their calcifying fluid, regardless of atmospheric pCO2, and another in...

Seawater carbonate chemistry and accumulation of radiotracers in different parts of egg of squid, Loligo vulgaris during 26 days of exposure, 2011

Thomas Lacoue-Labarthe, E Reveillac, F Oberhänsli, Jean-Louis Teyssié, Ross Jeffree & Jean-Pierre Gattuso
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI).

Seawater carbonate chemistry and accumulation of radiotracers in squid, Loligo vulgaris during experiments, 2011, supplement to: Lacoue-Labarthe, Thomas; Reveillac, E; Oberhänsli, F; Teyssié, Jean-Louis; Jeffree, Ross; Gattuso, Jean-Pierre (2011): Effects of ocean acidification on trace element accumulation in the early-life stages of squid Loligo vulgaris. Aquatic Toxicology, 105(1-2), 166-176

Thomas Lacoue-Labarthe, E Reveillac, F Oberhänsli, Jean-Louis Teyssié, Ross Jeffree & Jean-Pierre Gattuso
The anthropogenic release of carbon dioxide (CO2) into the atmosphere leads to an increase in the CO2 partial pressure (pCO2) in the ocean, which may reach 950 ?atm by the end of the 21st century. The resulting hypercapnia (high pCO2) and decreasing pH ("ocean acidification") are expected to have appreciable effects on water-breathing organisms, especially on their early-life stages. For organisms like squid that lay their eggs in coastal areas where the embryo and then...

Seawater carbonate chemistry and accumulation of radiotracers in paralarvae of squid, Loligo vulgaris during 52 hours of exposure, 2011

Thomas Lacoue-Labarthe, E Reveillac, F Oberhänsli, Jean-Louis Teyssié, Ross Jeffree & Jean-Pierre Gattuso
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI).

Effects of seawater acidification on early development of the intertidal sea urchin Paracentrotus lividus, seawater carbonate chemistry and biological processes, supplement to: Moulin, Laure; Catarino, Ana Isabel; Claessens, Thomas; Dubois, Philippe (2011): Effects of seawater acidification on early development of the intertidal sea urchin Paracentrotus lividus (Lamarck 1816). Marine Pollution Bulletin, 62(1), 48-54

Laure Moulin, Ana Isabel Catarino, Thomas Claessens & Philippe Dubois
The effect of pH ranging from 8.0 to 6.8 (total scale - pHT) on fertilization, cleavage and larval development until pluteus stage was assessed in an intertidal temperate sea urchin. Gametes were obtained from adults collected in two contrasting tide pools, one showing a significant nocturnal pH decrease (lowest pHT = 7.4) and another where pH was more stable (lowest pHT = 7.8). The highest pHT at which significant effects on fertilization and cleavage were...

Seawater carbonate chemistry in tide pools near Aber, Crozon penisula (France), 2009

Laure Moulin, Ana Isabel Catarino, Thomas Claessens & Philippe Dubois
In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Lavigne and Gattuso, 2011) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI).

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