11,598 Works

(Table 3) TEP concentrations in the water column during POLARSTERN cruise ANT-XXV/3 (LOHAFEX)

Friederike Ebersbach, Philipp Assmy, Patrick Martin, Isabelle Schulz, Sina Wolzenburg & Eva-Maria Nöthig

Seawater carbonate chemistry, respiration, maximum photochemical efficiency and mortality of brooded larvae of Pocillopora//damicornis in a laboratory experiment, supplement to: Cumbo, Vivian R; Edmunds, Peter J; Wall, Christopher B; Fan, Tung-Yung (2013): Brooded coral larvae differ in their response to high temperature and elevated pCO2 depending on the day of release. Marine Biology, 160(11), 2903-2917

Vivian R Cumbo, Peter J Edmunds, Christopher B Wall & Tung-Yung Fan
To evaluate the effects of temperature and pCO2 on coral larvae, brooded larvae of Pocillopora damicornis from Nanwan Bay, Taiwan (21°56.179' N, 120°44.85' E), were exposed to ambient (419-470 µatm) and high (604-742 µatm) pCO2 at ~25 and ~29 °C in two experiments conducted in March 2010 and March 2012. Larvae were sampled from four consecutive lunar days (LD) synchronized with spawning following the new moon, incubated in treatments for 24 h, and measured for...

Measurements of trace metal abundances and isotopes in carbonate sediments, Exuma, Bahamas, supplement to: Romaniello, Stephen J; Herrmann, Achim D; Anbar, Ariel D (2013): Uranium concentrations and 238U/235U isotope ratios in modern carbonates from the Bahamas: Assessing a novel paleoredox proxy. Chemical Geology, 362, 305-316

Stephen J Romaniello, Achim D Herrmann & Ariel D Anbar
In order to validate the use of 238U/235U as a paleoredox proxy in carbonates, we examined the incorporation and early diagenetic evolution of U isotopes in shallow Bahamian carbonate sediments. Our sample set consists of a variety of primary precipitates that represent a range of carbonate producing organisms and components that were important in the past (scleractinian corals, calcareous green and red algae, ooids, and mollusks). In addition, four short push cores were taken in...

Sediment porosity for the Exuma Island region of the Bahamas

Stephen J Romaniello, Achim D Herrmann & Ariel D Anbar
Estimated error for sediment depth = 0.02 m.

Chemistry of porewater for the Exuma Island region of the Bahamas

Stephen J Romaniello, Achim D Herrmann & Ariel D Anbar
Estimated error for sediment depth = 0.02 m.

Critical bed shear stress and threshold of motion of maërl biogenic gravel, supplement to: Joshi, Siddhi; Duffy, Garret; Brown, Colin (2017): Critical bed shear stress and threshold of motion of maerl biogenic gravel. Estuarine, Coastal and Shelf Science, 194, 128-142

Siddhi Joshi, Garret Duffy & Colin Brown
A determination of the critical bed shear stress of maerl is a prerequisite for quantifying its mobility, rate of erosion and deposition in conservation management. The critical bed shear stress for incipient motion has been determined for the first time for samples from biogenic free-living maerl beds in three contrasting environments (open marine, intertidal and beach) in Galway Bay, west of Ireland. The bed shear stress was determined using two methods, Law of the Wall...

Metabolic costs of larval settlement and metamorphosis in the coral Seriatopora caliendrum under ambient and elevated pCO2, supplement to: Edmunds, Peter J; Cumbo, Vivian R; Fan, Tung-Yung (2013): Metabolic costs of larval settlement and metamorphosis in the coral Seriatopora caliendrum under ambient and elevated pCO2. Journal of Experimental Marine Biology and Ecology, 443, 33-38

Peter J Edmunds, Vivian R Cumbo & Tung-Yung Fan
We tested the effects of pCO2 on Seriatopora caliendrum recruits over the first 5.3 d of post-settlement existence. In March 2011, 11-20 larvae were settled in glass vials (3.2 mL) and incubated at 24.0 °C and ~250 µmol quanta/m**2/s while supplied with seawater (at 1.4 mL/s) equilibrated with 51.6 Pa pCO2 (ambient) or 86.4 Pa pCO2. At 51.6 Pa pCO2, mean respiration 7 h post-settlement was 0.056 ± 0.007 nmol O2/recruit/min, but rose quickly to...

Seawater carbonate chemistry, calcification and survival of coral recruits in a laboratory experiment, supplement to: Dufault, Aaron M; Cumbo, Vivian R; Fan, Tung-Yung; Edmunds, Peter J (2012): Effects of diurnally oscillating pCO2 on the calcification and survival of coral recruits. Proceedings of the Royal Society B-Biological Sciences, 279(1740), 2951-2958

Aaron M Dufault, Vivian R Cumbo, Tung-Yung Fan & Peter J Edmunds
Manipulative studies have demonstrated that ocean acidification (OA) is a threat to coral reefs, yet no experiments have employed diurnal variations in pCO2 that are ecologically relevant to many shallow reefs. Two experiments were conducted to test the response of coral recruits (less than 6 days old) to diurnally oscillating pCO2; one exposing recruits for 3 days to ambient (440 µatm), high (663 µatm) and diurnally oscillating pCO2 on a natural phase (420-596 µatm), and...

Critical bed shear stress and threshold of motion of maërl biogenic sediments from Aran Subtidal

Siddhi Joshi, Garret Duffy & Colin Brown
HEIGHT above ground [m] gives the height above bed.

Critical bed shear stress and threshold of motion of maërl biogenic sediments from Muckinish Intertidal

Siddhi Joshi, Garret Duffy & Colin Brown
HEIGHT above ground [m] gives the height above bed.

Critical bed shear stress and threshold of motion of maërl biogenic sediments from Carraroe Beach

Siddhi Joshi, Garret Duffy & Colin Brown
HEIGHT above ground [m] gives the height above bed.

Calcification rate of massive Porites spp. and Porites rus in the experiment of Moorea, supplement to: Edmunds, Peter J; Brown, Darren; Moriarty, Vincent (2012): Interactive effects of ocean acidification and temperature on two scleractinian corals from Moorea, French Polynesia. Global Change Biology, 18(7), 2173-2183

Peter J Edmunds, Darren Brown & Vincent Moriarty
This study tested the hypothesis that the response of corals to temperature and pCO2 is consistent between taxa. Juvenile massive Porites spp. and branches of P. rus from the back reef of Moorea were incubated for 1 month under combinations of temperature (29.3 °C and 25.6 °C) and pCO2 (41.6 Pa and 81.5 Pa) at an irradiance of 599 µmol quanta/m/s. Using microcosms and CO2 gas mixing technology, treatments were created in a partly nested...

(Table 3) Growth indices of Arctica islandica from the Fladen Ground

Paul G Butler, Christopher A Richardson, James D Scourse, Rob Witbaard, Bernd R Schöne, Nicole M Fraser, Alan D Wanamaker, Charlotte L Bryant, Ian Harris & Iain Robertson

(Table 1) Shell chronology of Arctica islandica from the Fladen Ground

Paul G Butler, Christopher A Richardson, James D Scourse, Rob Witbaard, Bernd R Schöne, Nicole M Fraser, Alan D Wanamaker, Charlotte L Bryant, Ian Harris & Iain Robertson
AGE [ka BP] gives the midpoint of full lifetime.

Seawater carbonate chemistry and protein content, respiration, symbiodinium densities, survivorship of Pocillopora damicornis larvae in a laboratory experiment, supplement to: Cumbo, Vivian R; Fan, Tung-Yung; Edmunds, Peter J (2013): Effects of exposure duration on the response of Pocillopora damicornis larvae to elevated temperature and high pCO2. Journal of Experimental Marine Biology and Ecology, 439, 100-107

Vivian R Cumbo, Tung-Yung Fan & Peter J Edmunds
Efforts to evaluate the response of coral larvae to global climate change (GCC) and ocean acidification (OA) typically employ short experiments of fixed length, yet it is unknown how the response is affected by exposure duration. In this study, we exposed larvae from the brooding coral Pocillopora damicornis to contrasts of temperature (24.00 °C [ambient] versus 30.49 °C) and pCO2 (49.4 Pa versus 86.2 Pa) for varying periods (1-5 days) to test the hypothesis that...

Growth, respiration and photophysiology of coral massive Porites spp. in the experiment of Moorea, supplement to: Edmunds, Peter J (2012): Effect of pCO2 on the growth, respiration, and photophysiology of massive Porites spp. in Moorea, French Polynesia. Marine Biology, 159(10), 2149-2160

Peter J Edmunds
I tested the hypothesis that high pCO2 (76.6 Pa and 87.2 Pa vs. 42.9 Pa) has no effect on the metabolism of juvenile massive Porites spp. after 11 days at 28 °C and 545 µmol quanta/m**2/s. The response was assessed as aerobic dark respiration, skeletal weight (i.e., calcification), biomass, and chlorophyll fluorescence. Corals were collected from the shallow (3-4 m) back reef of Moorea, French Polynesia (17°28.614'S, 149°48.917'W), and experiments conducted during April and May...

Effects of feeding and light intensity on the response of the coral Porites rus to ocean acidification, supplement to: Comeau, Steeve; Carpenter, Robert C; Edmunds, Peter J (2013): Effects of feeding and light intensity on the response of the coral Porites rus to ocean acidification. Marine Biology, 160(5), 1127-1134

Steeve Comeau, Robert C Carpenter & Peter J Edmunds
Recently, it has been suggested that there are conditions under which some coral species appear to be resistant to the effects of ocean acidification. To test if such resistance can be explained by environmental factors such as light and food availability, the present study investigated the effect of 3 feeding regimes crossed with 2 light levels on the response of the coral Porites rus to 2 levels of pCO2 at 28 °C. After 1, 2,...

Seawater carbonate chemistry and calcification rates of Porites rus and Hydrolithon onkodes in experiments of Moorea, supplement to: Comeau, Steeve; Carpenter, Robert C; Edmunds, Peter J (2012): Coral reef calcifiers buffer their response to ocean acidification using both bicarbonate and carbonate. Proceedings of the Royal Society B-Biological Sciences, 280(1753)

Steeve Comeau, Robert C Carpenter & Peter J Edmunds
Central to evaluating the effects of ocean acidification (OA) on coral reefs is understanding how calcification is affected by the dissolution of CO2 in sea water, which causes declines in carbonate ion concentration [CO3]2- and increases in bicarbonate ion concentration [HCO3]-. To address this topic, we manipulated [CO3]2- and [HCO3]- to test the effects on calcification of the coral Porites rus and the alga Hydrolithon onkodes, measured from the start to the end of a...

Ocean acidification has no effect on thermal bleaching in the coral Seriatopora caliendrum, supplement to: Wall, Christopher B; Fan, Tung-Yung; Edmunds, Peter J (2013): Ocean acidification has no effect on thermal bleaching in the coral Seriatopora caliendrum. Coral Reefs, 33(1), 119-130

Christopher B Wall, Tung-Yung Fan & Peter J Edmunds
The objective of this study was to test whether elevated pCO2 predicted for the year 2100 (85.1 Pa) affects bleaching in the coral Seriatopora caliendrum (Ehrenberg 1834) either independently or interactively with high temperature (30.5 °C). Response variables detected the sequence of events associated with the onset of bleaching: reduction in the photosynthetic performance of symbionts as measured by maximum photochemical efficiency (F v/F m) and effective photochemical efficiency (delta F/F m') of PSII, declines...

In Situ effects of low pH and elevated HCO3 on juvenile massive Porites spp. in Moorea, French Polynesia, supplement to: Wall, Christopher B; Edmunds, Peter J (2013): In Situ Effects of Low pH and Elevated HCO3- on Juvenile Massive Porites spp. in Moorea, French Polynesia. Biological Bulletin, 225, 92–101

Christopher B Wall & Peter J Edmunds
Juvenile colonies of massive Porites spp. were exposed to manipulated pH and bicarbonate ([HCO3-]) in situ to test the hypothesis that ocean acidification (OA) does not affect respiration and calcification. Incubations lasted 28 h and exposed corals to ambient temperature and light with ecologically relevant water motion. Three treatments were applied: (1) ambient conditions of pH 8.04 and 1751 µmol HCO3- kg(-1) (Treatment 1), (2) pCO2-induced ocean acidification of pH 7.73 and 2011 µmol HCO3-...

Pacific-wide contrast highlights resistance of reef calcifiers to ocean acidification, supplement to: Comeau, Steeve; Carpenter, Robert C; Nojiri, Yukihiro; Putnam, H M; Sakai, Kazuhiko; Edmunds, Peter J (2014): Pacific-wide contrast highlights resistance of reef calcifiers to ocean acidification. Proceedings of the Royal Society B-Biological Sciences, 281(1790), 20141339-20141339

Steeve Comeau, Robert C Carpenter, Yukihiro Nojiri, H M Putnam, Kazuhiko Sakai & Peter J Edmunds
Ocean acidification (OA) and its associated decline in calcium carbonate saturation states is one of the major threats that tropical coral reefs face this century. Previous studies of the effect of OA on coral reef calcifiers have described a wide variety of outcomes for studies using comparable partial pressure of CO2 (pCO2) ranges, suggesting that key questions remain unresolved. One unresolved hypothesis posits that heterogeneity in the response of reef calcifiers to high pCO2 is...

The responses of eight coral reef calcifiers to increasing partial pressure of CO2 do not exhibit a tipping point, supplement to: Comeau, Steeve; Edmunds, Peter J; Spindel, N B; Carpenter, Robert C (2013): The responses of eight coral reef calcifiers to increasing partial pressure of CO2 do not exhibit a tipping point. Limnology and Oceanography, 58(1), 388-398

Steeve Comeau, Peter J Edmunds, N B Spindel & Robert C Carpenter
The objective of this study was to investigate whether a tipping point exists in the calcification responses of coral reef calcifiers to CO2. We compared the effects of six partial pressures of CO2 (PCO2) from 28 Pa to 210 Pa on the net calcification of four corals (Acropora pulchra, Porites rus, Pocillopora damicornis, and Pavona cactus), and four calcified algae (Hydrolithon onkodes, Lithophyllum flavescens, Halimeda macroloba, and Halimeda minima). After 2 weeks of acclimation in...

Fast coral reef calcifiers are more sensitive to ocean acidification in short-term laboratory incubations, supplement to: Comeau, Steeve; Edmunds, Peter J; Spindel, N B; Carpenter, Robert C (2014): Fast coral reef calcifiers are more sensitive to ocean acidification in short-term laboratory incubations. Limnology and Oceanography, 59(3), 1081-1091

Steeve Comeau, Peter J Edmunds, N B Spindel & Robert C Carpenter
To identify the properties of taxa sensitive and resistant to ocean acidification (OA), we tested the hypothesis that coral reef calcifiers differ in their sensitivity to OA as predictable outcomes of functional group alliances determined by conspicuous traits. We contrasted functional groups of eight corals and eight calcifying algae defined by morphology in corals and algae, skeletal structure in corals, spatial location of calcification in algae, and growth rate in corals and algae. The responses...

Arctica islandica chronologies from Fladen Ground, supplement to: Butler, Paul G; Richardson, Christopher A; Scourse, James D; Witbaard, Rob; Schöne, Bernd R; Fraser, Nicole M; Wanamaker, Alan D; Bryant, Charlotte L; Harris, Ian; Robertson, Iain (2009): Accurate increment identification and the spatial extent of the common signal in five Arctica islandica chronologies from the Fladen Ground, northern North Sea. Paleoceanography, 24(2), PA2210

Paul G Butler, Christopher A Richardson, James D Scourse, Rob Witbaard, Bernd R Schöne, Nicole M Fraser, Alan D Wanamaker, Charlotte L Bryant, Ian Harris & Iain Robertson
The creation of networks of shell-based chronologies which can provide regionally extensive high-resolution proxies for the marine environment depends on the spatial extent of the common environmental signal preserved in the shell banding and on the reliability of the dating model. Here Arctica islandica chronologies from five neighboring sites in the North Sea are compared, and the strength of the common environmental signal across distances up to 80 km is analyzed using statistical techniques derived...

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