A field study of the effects of CO2 ocean disposal on mobile deep-sea animals

Tamburri, Mario N.; Peltzer, Edward T.; Friederich, Gernot; Aya, Izuo; Yamane, Kenji; Brewer, Peter G.

doi:10.1016/s0304-4203(00)00075-x

Cited by 91 publications

(74 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…While in situ microcosmic CO 2 release studies at depth have been conducted , Tamburri et al 2000, Barry et al 2004, the direct physiological impacts of hypercapnia, and the acid -base regulatory capacities of deep-sea animals, have yet to be systematically investigated under laboratory conditions.…”

Section: Introductionmentioning

confidence: 99%

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

Pane¹,

Barry²

2007

Mar. Ecol. Prog. Ser.

171

137

View full text Add to dashboard Cite

Rising levels of atmospheric carbon dioxide could be curbed by large-scale sequestration of CO 2 in the deep sea. Such a solution requires prior assessment of the impact of hypercapnic, acidic seawater on deep-sea fauna. Laboratory studies were conducted to assess the short-term hypercapnic tolerance of the deep-sea Tanner crab Chionoecetes tanneri, collected from 1000 m depth in Monterey Canyon off the coast of central California, USA. Hemolymph acidbase parameters were monitored over 24 h of exposure to seawater equilibrated with ~1% CO 2 (seawater P CO 2 6 torr or 0.8 kPa, pH 7.1), and compared with those of the shallow-living Dungeness crab Cancer magister. Short-term hypercapnia-induced acidosis in the hemolymph of Chionoecetes tanneri was almost uncompensated, with a net 24 h pH reduction of 0.32 units and a net bicarbonate accumulation of only 3 mM. Under simultaneous hypercapnia and hypoxia, short-term extracellular acidosis in Chionoecetes tanneri was completely uncompensated. In contrast, Cancer magister fully recovered its hemolymph pH over 24 h of hypercapnic exposure by net accumulation of 12 mM bicarbonate from the surrounding medium. The data support the hypothesis that deep-sea animals, which are adapted to a stable environment and exhibit reduced metabolic rates, lack the short-term acid -base regulatory capacity to cope with the acute hypercapnic stress that would accompany large-scale CO 2 sequestration. Additionally, the data indicate that sequestration in oxygen-poor areas of the ocean would be even more detrimental to deep-sea fauna.KEY WORDS: CO 2 · Deep sea · Physiology · Decapod crustacea · Acid-base regulation ·Chionoecetes tanneri · Cancer magister Resale or republication not permitted without written consent of the publisherThe ocean's large-scale absorption, as well as possible future anthropogenic sequestration of atmospheric CO 2 , will result in long-term acidification of the water. The deep-sea crab Chionoecetes tanneri (collected from Monterey Canyon at 1000 m depth) is unable to regulate extracellular pH during short-term CO 2 exposure. The results of Pane & Barry support the hypothesis that hypercapnia will have a profound physiological impact on deep-sea organisms.

show abstract

Section: Introductionmentioning

confidence: 99%

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

Pane¹,

Barry²

2007

Mar. Ecol. Prog. Ser.

171

137

View full text Add to dashboard Cite

show abstract

“…obs.). Observations of the indifference exhibited by bathyal scavengers exposed to CO 2 -rich seawater and odor plumes (Tamburri et al 2000) also does not support this hypothesis. Although the CO 2 -rich dissolution plume may have contributed to the death of the caged macrourid, this is not possible to evaluate since caged macrourids (2 in E1 and 1 in E2) positioned in control areas 50 to 100 m from CO 2 pools (where pH perturbations were undetectable) also died.…”

Section: Response Of Scavengers To the Macrourid Odor Plumementioning

confidence: 91%

“…Because the odor plume and CO 2 -related acidification could have simultaneously affected scavenger behavior (e.g. Tamburri et al 2000), the effects of CO 2 alone can only be assessed prior to the death of the caged fish. If the analyses of CO 2 effects are limited to the live period prior to any influence of an odor plume and when at least some significant variation in pH occurred in both experiments, there was still little evidence of a response to elevated CO 2 levels by either scavengers or non-scavenger species.…”

Section: Effects Of Co 2 Treatmentsmentioning

confidence: 99%

“…Pachycara brachycephalum, a bathydemersal congener of P. bulbiceps, undergoes a ~35% reduction in oxygen consumption in cell suspensions with a 0.6 U pH reduction (Langenbuch & Pörtner 2003), but little is known of the response of live animals. Tamburri et al (2000) evaluated the response of bathyal scavengers exposed to CO 2 -rich waters or filtrate from homogenized shallow water fishes or both, finding that various scavengers were attracted strongly to the food odor, even with the strong narcotizing effects of the CO 2 -rich plume. For smaller abyssal organisms, our previous results have shown that sediment-dwelling meiofauna experience significant mortality after month-long exposure to pH reductions of ~0.1 to 0.3 U (Barry et al 2004, Thistle et al 2005.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Response of deep-sea scavengers to ocean acidification and the odor from a dead grenadier

Barry¹,

Drazen²

2007

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Experiments to assess the impact of ocean acidification on abyssal animals were performed off Central California. The survival of caged megafauna (Benthoctopus sp., Pachycara bulbiceps, Coryphaenoides armatus) exposed to CO 2 -rich and normal (control) seawater varied among species. Benthoctopus sp. and P. bulbiceps survived control conditions and month-long episodic exposure to acidic, CO 2 -rich waters (pH reductions of ~0.1 U). All C. armatus in both treatments died, potentially due to cage-related stress, predation, and exposure to acidic waters. High survival by P. bulbiceps and Benthoctopus under month-long exposure to CO 2 -rich waters indicates a physiological capacity to cope, at least temporarily, with stresses that will accompany expected future changes in ocean chemistry. The abundance of free-ranging scavengers was not correlated with variation in pH levels near fish cages. Incidental observations of abyssal scavengers collected using time-lapse cameras during these experiments were used secondarily to evaluate the hypothesis that macrourid fishes avoid the odor of dead conspecifics. Caged macrourids in view of time-lapse cameras died within 2 to 3 d, eliciting a strong response from the regional scavenger assemblage which aggregated near the cage. The pattern of scavenger visits suggests avoidance among taxa and a succession of scavengers. Macrourids, a dominant abyssal scavenger, either did not respond to the death of their congener or possibly avoided the area. Lack of a response by macrourids may be due to (1) avoidance of sites of dead or dying congeners, (2) high sensitivity to ocean acidification, (3) low nutritional value or weaker odor plumes from carcasses of abyssal versus shallow-water taxa, or (4) rapid departure from sites where a carcass is inaccessible. Camera systems were not deployed in view of carcasses at control sites (away from CO 2 pools) during each experiment, and we therefore cannot exclude the possibility that the pattern of scavenger visits was influenced by elevated carbon dioxide levels.KEY WORDS: Food fall · Behavior · Macrouridae · Coryphaenoides armatus · Zoarcidae · Pachycara bulbiceps · Octopodidae · Benthoctopus sp. Resale or republication not permitted without written consent of the publisher OPEN PEN ACCESS CCESS

show abstract

“…Acute effects--hypercopnia, (caused by elevated levels of pCO 2 ) and respiratory stress and acidosis (caused by associated lowering of pH)--could be experienced by individual organisms unable to avoid the plume (Knutzen, 1981;Shirayama, 1997;Omori, et al, 1998, Tamburri, et al, 2000. Additional sub-lethal effects could occur at the community and ecosystem level (Portner and Reipschlager, 1996;Kita et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

International Collaboration on Co2 Sequestration

Herzog¹,

Adams²

2004

View full text Add to dashboard Cite

The main goal of our work during this reporting period (August 23, 2002 -August 23, 2003 was to conduct an experimental cruise at the Loihi Seamount in the Hawaiian Islands. The work included preparation for the cruise, conducting the survey cruise, and analyzing the results. The cruise took place from December 3-13, 2002.3 Table of Executive SummaryAfter the permit to conduct a field experiment in Norway was revoked on August 22, 2002, we started executing our contingency plan to conduct a cruise at the Loihi Seamount in Hawaii in December 2002. After a few intense months of preparation, the cruise took place on December 3-13, 2002. In total, eight dives were made with the Pisces V submarine. The primary goal of the experiment was to assess the effect of CO 2 on marine organisms. Studies were done using scavenger traps, as well as collecting water samples and surveying the natural CO 2 plume at the Loihi Seamount.This report documents the experiment in more detail as summarized by the various participants. The data was still being analyzed at the end of this reporting period, so no results are reported here. Both papers and a video on the experiment are being prepared. Some related modeling work is presented in an Appendix in the form of a paper submitted to the Journal of Marine Environmental Engineering. ExperimentalFrom December 3-13, 2002, scientists from three countries representing the Technical Committee of the International Carbon Dioxide Sequestration Experiment examined the hydrothermal venting at Loihi Seamount (Hawaiian Islands, USA). Work focused on tracing the venting gases, the impacts of the vent fluids on marine organisms and their influence on biogeochemical cycles. The cruise on the R/V Ka'imikai-O-Kanaloa (KOK) included 8 dives of the Pisces V submarine, 6 at Loihi and 2 at a nearby site in the lee of the Big Island (Hawaii). Data gathered during the cruise will be published in peer-reviewed journals and will form the basis of grant proposals for future work at Loihi.On the first dive two scavenger traps and two bait parcels (4 whole mackerel) were deployed, the vent fields were surveyed and water samples and real time CTD data including pH were obtained. The vent fields around HURL markers 35 and 37 were identified as likely sites for further work. According to the HURL Operations Manager Terry Kerby, recent changes in venting at Loihi included a near cessation of venting at the "Boiling Pot" site (previously venting at about 90°C), and at the "Jet Vent" site. During our cruise venting at marker 35 was broad and diffuse with temperatures at the seafloor as high as 31°C. Water with pH of 5.7 at 6.3°C was observed at marker 35. The vents at marker 37 were at the base of a cliff and included one large (about 30 cm) opening. The marker 35 vents were identified as the preferred site to expose trapped animals to the plume and the marker 37 site was determined to be best suited for plume surveys because of its more discrete source and proximity to a rock wall that could be used as a refer...

show abstract

A field study of the effects of CO2 ocean disposal on mobile deep-sea animals

Cited by 91 publications

References 26 publications

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

Response of deep-sea scavengers to ocean acidification and the odor from a dead grenadier

International Collaboration on Co2 Sequestration

Contact Info

Product

Resources

About

A field study of the effects of CO2 ocean disposal on mobile deep-sea animals

Cited by 91 publications

References 26 publications

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

Response of deep-sea scavengers to ocean acidification and the odor from a dead grenadier

International Collaboration on Co2 Sequestration

Contact Info

Product

Resources

About

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab

Extracellular acidbase regulation during short-term hypercapnia is effective in a shallow-water crab, but ineffective in a deep-sea crab