Matrix of taxon (columns) by sample (rows) for sediment push cores collected by HOV Alvin during R/V Atlantis cruise AT37-13 in the Pacific margin of Costa Rica from May to June 2017

Website: https://www.bco-dmo.org/dataset/750091
Data Type: Cruise Results
Version: 1
Version Date: 2020-01-07

Project
» Collaborative research: Quantifying the biological, chemical, and physical linkages between chemosynthetic communities and the surrounding deep sea (Costa Rica Seeps)
ContributorsAffiliationRole
Levin, Lisa AUniversity of California-San Diego (UCSD-SIO)Principal Investigator
Rouse, GregoryUniversity of California-San Diego (UCSD-SIO)Co-Principal Investigator
Ashford, Oliver S.University of California-San Diego (UCSD-SIO)Contact
Rauch, ShannonWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager
Soenen, KarenWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager

Abstract
Matrix of taxon (columns) by sample (rows) for sediment push cores collected by HOV Alvin during R/V Atlantis cruise AT37-13 in the Pacific margin of Costa Rica from May to June 2017


Coverage

Spatial Extent: N:9.1181 E:-84.2147 S:8.8525 W:-84.8413
Temporal Extent: 2017-05-21 - 2017-06-07

Dataset Description

Matrix of taxon (columns) by sample (rows) for substrates collected during AT 37-13. Samples were collected with HOV Alvin.


Acquisition Description

Push core samples collected using HOV Alvin. Core diameter of 6.4 cm, 0-10 cm sediment fraction analysed. Counts of macrofaunal taxa retained on a 300 um sieve presented. Specimens preserved in 8% formalin prior to identification. See dataset 'AT37-13 Push Core Sampling Locations' (https://www.bco-dmo.org/dataset/750284) for details of core locations.


Processing Description

BCO-DMO Processing:

  • Modified parameter names to conform with BCO-DMO naming conventions (replaced spaces with underscores, removed periods and parentheses, replaced "?" with "q"),
  • Filled in empty cells with 0 (as instructed by data submitter).

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Parameters

ParameterDescriptionUnits
dive_coreAlvin dive number and core number unitless
AmpharetidaeNumber of individuals identified from taxon unitless
Ampharetidae_sp_1Number of individuals identified from taxon unitless
Ampharetidae_sp_2Number of individuals identified from taxon unitless
Ampharetidae_sp_3Number of individuals identified from taxon unitless
Ampharetidae_sp_4Number of individuals identified from taxon unitless
Ampharetidae_sp_5Number of individuals identified from taxon unitless
Ampharetidae_sp_6Number of individuals identified from taxon unitless
Amphisamytha_sp_1Number of individuals identified from taxon unitless
Amphisamytha_sp_2Number of individuals identified from taxon unitless
AmphinomidaeNumber of individuals identified from taxon unitless
Amphinomidae_sp_3Number of individuals identified from taxon unitless
Amphinomidae_sp_4Number of individuals identified from taxon unitless
Amphinomidae_sp_5Number of individuals identified from taxon unitless
Amphinomidae_sp_6Number of individuals identified from taxon unitless
Amphinomidae_sp_7Number of individuals identified from taxon unitless
AphroditidaeNumber of individuals identified from taxon unitless
CapitellidaeNumber of individuals identified from taxon unitless
Capitellidae_sp_2Number of individuals identified from taxon unitless
Capitellidae_sp_3Number of individuals identified from taxon unitless
Capitellidae_sp_4Number of individuals identified from taxon unitless
Capitellidae_sp_5Number of individuals identified from taxon unitless
Capitellidae_sp_6Number of individuals identified from taxon unitless
Capitellidae_sp_7Number of individuals identified from taxon unitless
Capitellidae_sp_8Number of individuals identified from taxon unitless
Capitellidae_sp_9Number of individuals identified from taxon unitless
ChrysopetalidaeNumber of individuals identified from taxon unitless
Chrysopetalidae_sp_1Number of individuals identified from taxon unitless
Chrysopetalidae_sp_2Number of individuals identified from taxon unitless
Chrysopetalidae_sp_3Number of individuals identified from taxon unitless
Chrysopetalidae_sp_4Number of individuals identified from taxon unitless
Chrysopetalidae_sp_5Number of individuals identified from taxon unitless
CirratulidaeNumber of individuals identified from taxon unitless
Cirratulidae_sp_1Number of individuals identified from taxon unitless
Cirratulidae_sp_2Number of individuals identified from taxon unitless
Cirratulidae_sp_3Number of individuals identified from taxon unitless
Cirratulidae_sp_4Number of individuals identified from taxon unitless
Cirratulidae_sp_5Number of individuals identified from taxon unitless
Cirratulidae_sp_6Number of individuals identified from taxon unitless
Cirratulidae_sp_7Number of individuals identified from taxon unitless
Cirratulidae_sp_8Number of individuals identified from taxon unitless
Cirratulidae_sp_9Number of individuals identified from taxon unitless
Cirratulidae_sp_10Number of individuals identified from taxon unitless
Cirratulidae_sp_11Number of individuals identified from taxon unitless
Cirratulidae_sp_12Number of individuals identified from taxon unitless
CossuridaeNumber of individuals identified from taxon unitless
Cossuridae_sp_1Number of individuals identified from taxon unitless
Cossuridae_sp_2Number of individuals identified from taxon unitless
Cossuridae_sp_3Number of individuals identified from taxon unitless
Cossuridae_sp_4Number of individuals identified from taxon unitless
CossuraNumber of individuals identified from taxon unitless
DorvilleidaeNumber of individuals identified from taxon unitless
Dorvilleidae_sp_1Number of individuals identified from taxon unitless
Dorvilleidae_sp_2Number of individuals identified from taxon unitless
Dorvilleidae_sp_3Number of individuals identified from taxon unitless
Dorvilleidae_sp_4Number of individuals identified from taxon unitless
Dorvilleidae_sp_5Number of individuals identified from taxon unitless
Dorvilleidae_sp_6Number of individuals identified from taxon unitless
Dorvilleidae_sp_7Number of individuals identified from taxon unitless
Ophryotrocha_platykephaleNumber of individuals identified from taxon unitless
Parougia_sppNumber of individuals identified from taxon unitless
FauveliopsidaeNumber of individuals identified from taxon unitless
FlabelligeridaeNumber of individuals identified from taxon unitless
Flabelligeridae_sp_4Number of individuals identified from taxon unitless
Flabelligeridae_sp_5Number of individuals identified from taxon unitless
Flabelligeridae_sp_6Number of individuals identified from taxon unitless
Flabelligeridae_p_7Number of individuals identified from taxon unitless
Brada_sp_1Number of individuals identified from taxon unitless
Brada_sp_2Number of individuals identified from taxon unitless
GlyceridaeNumber of individuals identified from taxon unitless
Glyceridae_sp_1Number of individuals identified from taxon unitless
Glyceridae_sp_2Number of individuals identified from taxon unitless
Glyceridae_sp_3Number of individuals identified from taxon unitless
HesionidaeNumber of individuals identified from taxon unitless
Hesione_sp_1Number of individuals identified from taxon unitless
Hesione_sp_2Number of individuals identified from taxon unitless
Hesione_sp_3Number of individuals identified from taxon unitless
Hesionidae_sp_1Number of individuals identified from taxon unitless
Hesionidae_sp_2Number of individuals identified from taxon unitless
Hesionidae_sp_3Number of individuals identified from taxon unitless
Hesionidae_sp_4Number of individuals identified from taxon unitless
Hesionidae_sp_5Number of individuals identified from taxon unitless
Hesionidae_sp_6Number of individuals identified from taxon unitless
LacydoniidaeNumber of individuals identified from taxon unitless
LacydoniaNumber of individuals identified from taxon unitless
Lacydonia_sp_1Number of individuals identified from taxon unitless
Lacydonia_sp_2Number of individuals identified from taxon unitless
Lacydonia_sp_3Number of individuals identified from taxon unitless
LumbrineridaeNumber of individuals identified from taxon unitless
Lumbrineridae_sp_1Number of individuals identified from taxon unitless
Lumbrineridae_sp_2Number of individuals identified from taxon unitless
MaldanidaeNumber of individuals identified from taxon unitless
Maldanidae_sp_1Number of individuals identified from taxon unitless
Maldanidae_sp_3Number of individuals identified from taxon unitless
Maldanidae_sp_4Number of individuals identified from taxon unitless
Maldanidae_sp_5Number of individuals identified from taxon unitless
Maldanidae_sp_6Number of individuals identified from taxon unitless
NephtyidaeNumber of individuals identified from taxon unitless
Nephtyidae_sp_1Number of individuals identified from taxon unitless
Nephtyidae_sp_2Number of individuals identified from taxon unitless
Nephtyidae_sp_3Number of individuals identified from taxon unitless
NereididaeNumber of individuals identified from taxon unitless
Nereididae_sp_1Number of individuals identified from taxon unitless
OenonidaeNumber of individuals identified from taxon unitless
Oenonidae_sp_1Number of individuals identified from taxon unitless
Oenonidae_sp_2Number of individuals identified from taxon unitless
Oenonidae_sp_3Number of individuals identified from taxon unitless
Oenonidae_sp_4Number of individuals identified from taxon unitless
OnuphidaeNumber of individuals identified from taxon unitless
Onuphidae_sp_1Number of individuals identified from taxon unitless
Onuphidae_sp_2Number of individuals identified from taxon unitless
Onuphidae_sp_3Number of individuals identified from taxon unitless
OpheliidaeNumber of individuals identified from taxon unitless
Opheliidae_sp_1Number of individuals identified from taxon unitless
Opheliidae_sp_2Number of individuals identified from taxon unitless
Opheliidae_sp_3Number of individuals identified from taxon unitless
Armandia_sp_1Number of individuals identified from taxon unitless
Armandia_sp_2Number of individuals identified from taxon unitless
Travisia_sp_1Number of individuals identified from taxon unitless
OrbiniidaeNumber of individuals identified from taxon unitless
Orbiniidae_sp_1Number of individuals identified from taxon unitless
ParalacydonidaeNumber of individuals identified from taxon unitless
Paralacydonidae_sp_1Number of individuals identified from taxon unitless
ParaonidaeNumber of individuals identified from taxon unitless
Paraonidae_sp_1Number of individuals identified from taxon unitless
Paraonidae_sp_2Number of individuals identified from taxon unitless
Paraonidae_sp_3Number of individuals identified from taxon unitless
Paraonidae_sp_4Number of individuals identified from taxon unitless
Paraonidae_sp_5Number of individuals identified from taxon unitless
Paraonidae_sp_6Number of individuals identified from taxon unitless
Paraonidae_sp_8Number of individuals identified from taxon unitless
Paraonidae_sp_9Number of individuals identified from taxon unitless
Paraonidae_sp_10Number of individuals identified from taxon unitless
Paraonidae_sp_11Number of individuals identified from taxon unitless
Paraonidae_sp_12Number of individuals identified from taxon unitless
Paraonidae_sp_13Number of individuals identified from taxon unitless
Paraonidae_sp_14Number of individuals identified from taxon unitless
Aricidea_spNumber of individuals identified from taxon unitless
Cirrophorus_sp_1Number of individuals identified from taxon unitless
PhyllodocidaeNumber of individuals identified from taxon unitless
Phyllodocidae_sp_1Number of individuals identified from taxon unitless
Phyllodocidae_sp_2Number of individuals identified from taxon unitless
PilargidaeNumber of individuals identified from taxon unitless
Pilargidae_sp_1Number of individuals identified from taxon unitless
PolynoidaeNumber of individuals identified from taxon unitless
Polynoidae_sp_1Number of individuals identified from taxon unitless
Polynoidae_sp_2Number of individuals identified from taxon unitless
Polynoidae_sp_3Number of individuals identified from taxon unitless
Polynoidae_sp_4Number of individuals identified from taxon unitless
SabellidaeNumber of individuals identified from taxon unitless
Sabellidae_sp_1Number of individuals identified from taxon unitless
Sabellidae_sp_2Number of individuals identified from taxon unitless
Sabellidae_sp_3Number of individuals identified from taxon unitless
Sabellidae_sp_4Number of individuals identified from taxon unitless
Sabellidae_sp_5Number of individuals identified from taxon unitless
Sabellidae_sp_6Number of individuals identified from taxon unitless
Sabellidae_sp_8Number of individuals identified from taxon unitless
ScalibregmatidaeNumber of individuals identified from taxon unitless
Scalibregmatidae_sp_1Number of individuals identified from taxon unitless
SerpulidaeNumber of individuals identified from taxon unitless
SiboglinidaeNumber of individuals identified from taxon unitless
Siboglinidae_sp_1Number of individuals identified from taxon unitless
LamellibrachiaNumber of individuals identified from taxon unitless
SigalionidaeNumber of individuals identified from taxon unitless
SpionidaeNumber of individuals identified from taxon unitless
Spionidae_sp_1Number of individuals identified from taxon unitless
Spionidae_sp_3Number of individuals identified from taxon unitless
Spionidae_sp_4Number of individuals identified from taxon unitless
Spionidae_sp_5Number of individuals identified from taxon unitless
Spionidae_sp_6Number of individuals identified from taxon unitless
Spionidae_sp_7Number of individuals identified from taxon unitless
Spionidae_sp_8Number of individuals identified from taxon unitless
Spionidae_sp_9Number of individuals identified from taxon unitless
Spionidae_sp_10Number of individuals identified from taxon unitless
PolydoraNumber of individuals identified from taxon unitless
Prionospio_sp_1Number of individuals identified from taxon unitless
SphaerodoridaeNumber of individuals identified from taxon unitless
Sphaerodoridae_sp_1Number of individuals identified from taxon unitless
Sphaerodoridae_sp_2Number of individuals identified from taxon unitless
Sphaerodoridae_sp_3Number of individuals identified from taxon unitless
Sphaerodoridae_sp_4Number of individuals identified from taxon unitless
Sphaerodoridae_sp_5Number of individuals identified from taxon unitless
Sphaerodoridae_sp_6Number of individuals identified from taxon unitless
SternaspidaeNumber of individuals identified from taxon unitless
Sternaspis_sp_1Number of individuals identified from taxon unitless
SyllidaeNumber of individuals identified from taxon unitless
TerebellidaeNumber of individuals identified from taxon unitless
Trichobranchidae_sp_1Number of individuals identified from taxon unitless
Trichobranchidae_sp_2Number of individuals identified from taxon unitless
Trichobranchidae_sp_3Number of individuals identified from taxon unitless
Oligochaeta_sp_2Number of individuals identified from taxon unitless
Oligochaeta_sp_3Number of individuals identified from taxon unitless
Amphipoda_unidentifiedNumber of individuals identified from taxon unitless
AmpeliscidaeNumber of individuals identified from taxon unitless
Haploops_sp_1Number of individuals identified from taxon unitless
EusiridaeNumber of individuals identified from taxon unitless
Rhachotropis_c_f_rossiNumber of individuals identified from taxon unitless
IschyroceridaeNumber of individuals identified from taxon unitless
Bonnierella_c_f_campensisNumber of individuals identified from taxon unitless
Bonnierella_c_f_dimorphaNumber of individuals identified from taxon unitless
LiljeborgiidaeNumber of individuals identified from taxon unitless
Idunella_sp_1Number of individuals identified from taxon unitless
LysianassoideaNumber of individuals identified from taxon unitless
Wecomedon_sp_1Number of individuals identified from taxon unitless
OedicerotidaeNumber of individuals identified from taxon unitless
Monoculodes_c_f_anophthalmaNumber of individuals identified from taxon unitless
Monoculodes_c_f_bousfieldiNumber of individuals identified from taxon unitless
Monoculodes_c_f_recandescoNumber of individuals identified from taxon unitless
Monoculodes_sp_4Number of individuals identified from taxon unitless
PardaliscidaeNumber of individuals identified from taxon unitless
Pardaliscopsis_sp_1Number of individuals identified from taxon unitless
PhotidaeNumber of individuals identified from taxon unitless
Posophotis_sp_1Number of individuals identified from taxon unitless
PhoxocephalidaeNumber of individuals identified from taxon unitless
Harpinia_sp_1Number of individuals identified from taxon unitless
PleustidaeNumber of individuals identified from taxon unitless
Stenopleustes_c_f_monocuspisNumber of individuals identified from taxon unitless
SynopiidaeNumber of individuals identified from taxon unitless
Syrrhoites_sp_1Number of individuals identified from taxon unitless
DiastylidaeNumber of individuals identified from taxon unitless
Leptostylis_sp_1Number of individuals identified from taxon unitless
LampropidaeNumber of individuals identified from taxon unitless
Bathylamprops_sp_1Number of individuals identified from taxon unitless
LeuconidaeNumber of individuals identified from taxon unitless
EudorellaNumber of individuals identified from taxon unitless
Eudorella_c_f_hispidaNumber of individuals identified from taxon unitless
LeuconNumber of individuals identified from taxon unitless
Leucon_c_f_americanusNumber of individuals identified from taxon unitless
Leucon_c_f_simanensisNumber of individuals identified from taxon unitless
Paraleucon_nov_spNumber of individuals identified from taxon unitless
NannastacidaeNumber of individuals identified from taxon unitless
Campylaspis_sp_1Number of individuals identified from taxon unitless
Pavlovskeola_sp_1Number of individuals identified from taxon unitless
DesmosomatidaeNumber of individuals identified from taxon unitless
Prochelator_c_f_keenani_nov_spNumber of individuals identified from taxon unitless
Prochelator_sp_2Number of individuals identified from taxon unitless
Chelator_sp_1Number of individuals identified from taxon unitless
Chelator_c_f_auquabalisNumber of individuals identified from taxon unitless
Chelator_c_f_brevicaudusNumber of individuals identified from taxon unitless
Desmosoma_sp_1Number of individuals identified from taxon unitless
Desmosoma_sp_2Number of individuals identified from taxon unitless
Desmosoma_sp_3Number of individuals identified from taxon unitless
MunnopsidaeNumber of individuals identified from taxon unitless
Betamorpha_sp_1Number of individuals identified from taxon unitless
Eurycope_sp_1Number of individuals identified from taxon unitless
Ilyarachna_spNumber of individuals identified from taxon unitless
Pseudarachna_sp_1Number of individuals identified from taxon unitless
NannoniscidaeNumber of individuals identified from taxon unitless
Nannoniscus_sp_1Number of individuals identified from taxon unitless
StenetriidaeNumber of individuals identified from taxon unitless
Tenupedunculus_nov_spNumber of individuals identified from taxon unitless
AgathotanaidaeNumber of individuals identified from taxon unitless
Agathotanais_hanseniNumber of individuals identified from taxon unitless
ParagathotanaisNumber of individuals identified from taxon unitless
Paragathotanais_c_f_mediusNumber of individuals identified from taxon unitless
ParanarthruraNumber of individuals identified from taxon unitless
Paranarthrura_similisNumber of individuals identified from taxon unitless
AkanthophoridaeNumber of individuals identified from taxon unitless
Parakanthophoreus_sp_1Number of individuals identified from taxon unitless
AnarthruridaeNumber of individuals identified from taxon unitless
Anarthrurella_sp_1Number of individuals identified from taxon unitless
ApseudidaeNumber of individuals identified from taxon unitless
Leviapseudes_wolffiNumber of individuals identified from taxon unitless
Coalecerotanais_nov_spNumber of individuals identified from taxon unitless
LeptognathiidaeNumber of individuals identified from taxon unitless
Leptognathia_sp_aNumber of individuals identified from taxon unitless
Leptognathia_sp_bNumber of individuals identified from taxon unitless
PseudotanaidaeNumber of individuals identified from taxon unitless
PseudotanaisNumber of individuals identified from taxon unitless
Pseudotanais_P_corollatusNumber of individuals identified from taxon unitless
Pseudotanais_P_inflatusNumber of individuals identified from taxon unitless
TanaellidaeNumber of individuals identified from taxon unitless
Araphura_c_f_brevimanusNumber of individuals identified from taxon unitless
Araphura_c_f_filiformisNumber of individuals identified from taxon unitless
Araphura_sp_3Number of individuals identified from taxon unitless
Tanaella_c_f_rotundicephalaNumber of individuals identified from taxon unitless
TyphlotanaidaeNumber of individuals identified from taxon unitless
Typhlotanoides_sp_1Number of individuals identified from taxon unitless
Typhlotanais_c_f_williamsaeNumber of individuals identified from taxon unitless
Unidentified_BivalviaNumber of individuals identified from taxon unitless
ArcidaeNumber of individuals identified from taxon unitless
Arcidae_sp_1Number of individuals identified from taxon unitless
CuspidaridaeNumber of individuals identified from taxon unitless
Cuspidaria_sp_1Number of individuals identified from taxon unitless
LimidaeNumber of individuals identified from taxon unitless
Limidae_sp_1Number of individuals identified from taxon unitless
MyidaeNumber of individuals identified from taxon unitless
NuculanidaeNumber of individuals identified from taxon unitless
Nuculana_sp_1Number of individuals identified from taxon unitless
Nuculanidae_sp_2Number of individuals identified from taxon unitless
Nuculanidae_sp_4Number of individuals identified from taxon unitless
SolemyidaeNumber of individuals identified from taxon unitless
VesicomyidaeNumber of individuals identified from taxon unitless
Vesicomyidae_sp_1Number of individuals identified from taxon unitless
Vesicomyidae_sp_3Number of individuals identified from taxon unitless
Vesicomyidae_sp_4Number of individuals identified from taxon unitless
Vesicomyidae_sp_5Number of individuals identified from taxon unitless
Calyptogena_sp_1Number of individuals identified from taxon unitless
YoldiidaeNumber of individuals identified from taxon unitless
Gastropoda_unidenNumber of individuals identified from taxon unitless
EulimidaeNumber of individuals identified from taxon unitless
Eulimidae_sp_1Number of individuals identified from taxon unitless
HyalagyrinidaeNumber of individuals identified from taxon unitless
Hyalogyrinidae_sp_1Number of individuals identified from taxon unitless
Hyalogyrinidae_sp_2Number of individuals identified from taxon unitless
LepetodrilidaeNumber of individuals identified from taxon unitless
LimacinidaeNumber of individuals identified from taxon unitless
ProvannidaeNumber of individuals identified from taxon unitless
Provanna_sp_1Number of individuals identified from taxon unitless
Provanna_sp_2Number of individuals identified from taxon unitless
PteropodaNumber of individuals identified from taxon unitless
Thecosomata_sp_1Number of individuals identified from taxon unitless
RetiskeneaNumber of individuals identified from taxon unitless
ScissurellidaeNumber of individuals identified from taxon unitless
SkeneidaeNumber of individuals identified from taxon unitless
Fucaria_sp_1Number of individuals identified from taxon unitless
AplacophoraNumber of individuals identified from taxon unitless
Aplacophora_sp_1Number of individuals identified from taxon unitless
Aplacophora_sp_2Number of individuals identified from taxon unitless
Aplacophora_sp_3Number of individuals identified from taxon unitless
Aplacophora_sp_6Number of individuals identified from taxon unitless
Scaphopoda_sp_1Number of individuals identified from taxon unitless
Scaphopoda_sp_2Number of individuals identified from taxon unitless
AcariNumber of individuals identified from taxon unitless
DecapodaNumber of individuals identified from taxon unitless
PycnogonidaNumber of individuals identified from taxon unitless
CnidariaNumber of individuals identified from taxon unitless
EchinodermataNumber of individuals identified from taxon unitless
HolothuriaNumber of individuals identified from taxon unitless
OphiuroideaNumber of individuals identified from taxon unitless
EnteropneustaNumber of individuals identified from taxon unitless
HydroideaNumber of individuals identified from taxon unitless
NemerteaNumber of individuals identified from taxon unitless
PriapulidaNumber of individuals identified from taxon unitless
UnknownNumber of individuals identified from taxon unitless

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Deployments

AT37-13

Website
Platform
R/V Atlantis
Start Date
2017-05-20
End Date
2017-06-11

AT37-13_Alvin_Dives

Website
Platform
Alvin
Start Date
2017-05-21
End Date
2017-06-08
Description
Collections of seep organisms in sediments and on rocks.


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Project Information

Collaborative research: Quantifying the biological, chemical, and physical linkages between chemosynthetic communities and the surrounding deep sea (Costa Rica Seeps)

Coverage: Costa Rica Pacific Margin


NSF abstract: If life were to disappear from the deep sea, would we notice? We only have a cursory understanding of this vast region and the connectivity among its communities and the rest of the oceans, and yet the ecosystems of the deep sea have been implicated in the larger function of the global marine ecosystems. We now rely on the deep ocean for food, energy, novel drugs and materials, and for its role in the global cycling of carbon, as well as for supporting services such as habitat creation, nutrient replenishment for shallow waters, and the maintenance of biodiversity. Cold seeps, active areas of the seafloor where methane and other chemicals are released, are key features along the continental margins worldwide. To characterize how methane seep communities interact with the surrounding ecosystems and vice versa, we will study methane seeps off the Pacific coast of Costa Rica in 2017 and 2018. It is the sphere of influence around the seep, both along the seafloor and up into the water column, that we seek to better understand. We will map the structure and the chemistry surrounding these habitats using a novel 3-dimensional framework, combining typical transects with vertical characterizations of the water column just above the seafloor. This will include measurements of methane flux into the water column and changes in the overlying carbonate chemistry and oxygen levels that are critical to our understanding of the effect of warming, oxygen loss and ocean acidification in this region. Within this framework, we will collect seep organisms in sediments and on rocks (including all sizes from microbes to large animals), and transplant some of these from within the area of seep influence to the background deep sea, and vice-versa. Together, these studies will help us to measure the size of the seep sphere of influence, and also demonstrate the role of these seeps within the deep sea and the greater, global, marine ecosystem. We will share this information with a group of teachers during a series of workshops in the San Diego area, at an exhibit at the Birch Aquarium, and through the work of an artist who has worked extensively with marine organisms in extreme environments. Chemosynthetic ecosystems are inextricably linked to the broader world-ocean biome and global biogeochemical cycles in ways that we are just beginning to understand. This research will identify the form, extent, and nature of the physical, chemical, and biological linkages between methane seeps and the surrounding deep-sea ecosystem. The proposed research builds critical understanding of the structural and functional processes that underpin the ecosystem services provided by chemosynthetic ecosystems. We target a critical continental margin, Costa Rica, where methane fates and dynamics loom large and play out in an setting that reflects many oceanographic stressors. We will use quantitative sampling and manipulative studies within a 3-dimensional oceanographic framework. We will ask what are the shapes of the diversity and density functions for organisms of different size classes and trophic position over the transition from the seep habitat through the ecotone to the background deep sea? Further, we will ask how do depth, dissolved oxygen concentrations, pH and carbonate ion availability, relative rates of fluid flux, and substrate (biogenic, authigenic carbonate, sediments) alter these linkages and interactions with the surrounding deep sea? Evidence for distinct transitional communities and biotic patterns in density and alpha and beta diversity will be quantified and placed in a global biogeographic context. All of these investigations will occur across biological size spectra: for microorganisms (archaea, bacteria, microeukaryotes), the macrofauna, and the megafauna that form biogenic habitats. Our research results will be interpreted in the context of potential effects of global ocean change in the equatorial Pacific to determine how the linkages with the surrounding deep sea will be altered as anthropogenic impacts proceed in the future.  Related publications: Levin, L.A., V.J. Orphan, G.W. Rouse, W. Ussler, A. E. Rathburn, G. S. Cook, S. Goffredi, E. Perez, A. Waren, B. Grupe, G. Chadwick, B. Strickrott. (2012). A hydrothermal seep on the Costa Rica margin: Middle ground in a continuum of reducing ecosystems. Proc. Royal Soc. B. 279: 2580-88 doi: 10.1098/rspb.2012.0205 Sahling, H., Masson, D. G., Ranero, C. R., Hühnerbach, V., Weinrebe, W., Klaucke, I., & Suess, E. (2008). Fluid seepage at the continental margin offshore Costa Rica and southern Nicaragua. Geochemistry, Geophysics, Geosystems 9: doi: 10.1029/2008GC001978


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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)

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