Oxygen consumption and metabolic enzyme activity in the Antarctic coral, Flabellum impensum from RVIB Nathaniel B. Palmer NBP1002 in the Western Antarctic Peninsula, Mar.- May 2010 (CARIACO-micronek project, Antarctic_micronek project)

Website: https://www.bco-dmo.org/dataset/475848
Data Type: experimental
Version: 17 January 2014
Version Date: 2014-01-17

Project
» Micronekton of the Cariaco Basin: Adaptation to a severe oxygen minimum (CARIACO-micronek)
» Possible climate-induced change in the distribution of Pleuragramma antarcticum on the Western Antarctic Peninsula Shelf (Antarctic_micronek)
ContributorsAffiliationRole
Torres, Joseph J.University of South Florida (USF)Principal Investigator
Henry, Lara V.University of South Florida (USF)Co-Principal Investigator
Allison, DickyWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

This study characterizes the metabolism of the endemic Antarctic coral Flabellum impensum by measuring oxygen consumption and metabolic enzyme activity.  This dataset is a comparison of Flabellum impensum metabolism with other corals reported in the literature and is from a table extracted from the paper,

Metabolism of an Antarctic solitary coral, Flabellum impensum. 2013, by Lara V. Henry and Joseph J. Torres found in the Journal of Experimental Marine Biology and Ecology, 449 (2013) 17-21.  (Table 1)

http://dx.doi.org/10.1016/j.jembe.2013.08.010

Studies referred to in Table 1:

L. Buhl-Mortensen, P.B. Mortensen, S. Armsworthy, and D. Jackson, 2007.  Field observations of Flabellum spp. and laboratory study of the behavior and respiration of Flabellum alabastrum.  Bull. Mar. Sci., 81 (3) (2007), pp. 543–552.

P.S. Davies, 1980.  Short-term growth measurements of corals using an accurate buoyant weighing technique.  Mar. Biol., 101 (1989), pp. 389–395.

B.T. Hargrave, V.E. Kostylev, and C.M. Hawkins, 2004.  Benthic epifauna assemblages, biomass, and respiration in The Gully region on the Scotian Shelf, NW Atlantic Ocean.  Mar. Ecol. Prog. Ser., 270 (2004), pp. 55–70.

T. Ikeda, B. Bruce, 1986.  Metabolic activity and elemental composition of krill and other zooplankton from Prydz Bay, Antarctica, during early summer (November–December).  Mar. Biol., 92 (1986), pp. 545–555.

K.M. Scolardi, K.L. Daly, E.A. Pakhomov, J.J. Torres, 2006. Feeding ecology and metabolism of the Antarctic cydippid ctenophore Callianira antarctica.  Mar. Ecol. Prog. Ser., 317 (2006), pp. 111–126

J.M. Shick, 1990. Diffusion limitation and hyperoxic enhancement of oxygen consumption in zooxanthellate sea anemones, zoanthids, and corals.  Biol. Bull., 179 (1990), pp. 148–158.

E.V. Thuesen, and J.J. Childress, 1994. Oxygen consumption rates and metabolic enzyme activities of oceanic California medusae in relation to body size and habitat depth.  Biol. Bull., 187 (1994), pp. 84–98.


Methods & Sampling

Corals were collected with a 10 m otter trawl by the RVIB Nathaniel B. Palmer off the Western Antarctic Peninsula during March 2010.  The corals were collected off Anvers Island at 600 m and off Charcot Islands at 200 meters depth.

Measurements were taken on 9 specimens.

(See Henry and Torres paper cited above for more details.)


Data Processing Description

Individuals with no signs of trauma were allowed to recover in pre-chilled seawater in 0 degrees from 12 to 22 hours before being used in experiments.

(See Henry and Torres paper cited above for more details.)


[ table of contents | back to top ]

Data Files

File
coral_metabolism.csv
(Comma Separated Values (.csv), 4.07 KB)
MD5:1fe4425bc775b5d01178b058e3e32c8f
Primary data file for dataset ID 475848

[ table of contents | back to top ]

Parameters

ParameterDescriptionUnits
SpeciesAnimal species studied. alphanumeric
Animal_groupThe group of animals or life style of the species described or which the species belongs to. alphanumeric
O2_consumptionmean Oxygen consumption of animal.  Measured after 100 minute had elapsed to give coral respiration a chance to stabilize. micromoles O2 per gram(wet weight) per hour
TsubrespTemperature of the seawater environment for the respiration experiments. degrees Centigrade
O2_consumption_SEMean Oxygen Consumption Standard Error micromoles O2 per gram(wet weight) per hour
CS_activityMean Citrate synthase (CS) activity.  Citrate synthase is a metabolic enzyme that regulates the first step in the Krebs Cycle.  Activity of this enzyme is an indicator of aerobic function.  units per gram
Cs_activity_SEMean Citrate synthase (CS) standard error. units per gram
LDH_ActivityMean Lactate hydrogenase activity (LDH).  Lactate dehydrogenase is the terminal enzyme in anaerobic glycolysis.   Its activity in an organism is an indicator of the individual's anaerobic capacity. units per gram
LDH_Activity_SEMean Lactate dehydrogenase (LDH) standard error. units per gram
MDH_ActivityMean Malate dehydrogenase (MDH) activity.  Malate dehydrogenase (MDH) plays a role in the Krebs cycle in addition to other metabolic functions.  MDH activity is an indicator of aerobic function. units per gram
MDH_Activity_SEMean Malate dehydrogenase (MDH) standard error. units per gram
TsubenzymesTemperature of medium recording the enzyme activity. degrees Centigrade
Source_YearStudies cited in the paper that represents these data. alphanumeric

[ table of contents | back to top ]

Deployments

NBP1002

Website
Platform
RVIB Nathaniel B. Palmer
Report
Start Date
2010-03-16
End Date
2010-05-02


[ table of contents | back to top ]

Project Information

Micronekton of the Cariaco Basin: Adaptation to a severe oxygen minimum (CARIACO-micronek)

Coverage: Eastern Gulf of Mexico, Southeastern Atlantic, Western Antarctic Peninsula shelf


The major goals of this project were changed somewhat when collecting data in the Cariaco region of the Caribbean was not possible due to "severe problems with infrastructure at the proposed study site" (from Final Report).

The first goal was expanded to include the study of species of coral from the Antarctic, the Gulf of Mexico and the coastal waters of Puerto Rico to shed light on metabolic adaptation to depth, darkness, and temperature. 

Coral habitats span the range from tropical to polar, extremely shallow to thousands of
feet deep. The differences in light, temperature, and depth experienced in these varied
habitats likely affect the metabolic rates of the corals residing there. The metabolism of
three coral species from different habitats were examined to elucidate the effects
of these environmental parameters on an under-studied aspect of coral biology.

The second goal was to determine the adaptation to temperature of tropical and subtropical teleosts at the mitochondrial level.

The maintenance of a functional energy balance in ectothermic fauna can be
challenging in a thermally disparate environment. The present work describes how the
energetic machinery in the cell, particularly the mitochondrion, is affected by
temperature changes. More specifically, this work determined how environmental
temperature affects the mitochondrial energetic performance of fishes from disparate
thermal regimes.

(excerpted from the Final Report for Award 0727883.


Possible climate-induced change in the distribution of Pleuragramma antarcticum on the Western Antarctic Peninsula Shelf (Antarctic_micronek)

Coverage: Western Antarctic Peninsula


Pleuragramma antarcticum, the Antarctic silverfish, plays a key role in the trophic pyramid of the Antarctic coastal ecosystem, acting as food for larger fishes, flying and non-flying seabirds, pinnipeds, and whales. In turn, they are predators on coastal euphausiids, including both Euphausia superba and E. crystallorophias. Historically, Pleuragramma have been an important food source for Adélie Penguins of the Western Antarctic Peninsula (WAP), but during the last decade Pleuragramma have disappeared from the Adélie diet. We suggest that Pleuragramma's absence from the diets of top predators is linked to the declining sea ice canopy, which serves as a nursery for eggs and larvae during the austral spring. The research will investigate four hydrographic regimes over the WAP continental shelf with the following features: (1) persistent gyral flows that act to retain locally spawned larvae, (2) spring sea ice that has declined in recent years (3) the prevalence of adult silverfish, and (4) the presence of breeding Adélie penguins whose diets vary in the proportions of silverfish consumed. The research will evaluate the importance of local reproduction versus larval advection, and the extent to which populations in the subregions of study are genetically distinct, via analysis of population structure, otolith microchemistry and molecular genetics of fish. The Pleuragramma data will be compared with penguin diet samples taken synoptically. 



[ table of contents | back to top ]

Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)
NSF Antarctic Sciences (NSF ANT)

[ table of contents | back to top ]