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    Vertical profile data collected by CTD in a subtropical, pelagic environment from R/V F.G. Walton Smith cruise WS15161 in the Straits of Florida in June 2015 (OSTRICH project)
    
  
  
    
    

Vertical profile data collected by CTD in a subtropical, pelagic environment from R/V F.G. Walton Smith cruise WS15161 in the Straits of Florida in June 2015 (OSTRICH project)

Website: https://www.bco-dmo.org/dataset/654141
Data Type: Cruise Results
Version: 23 August 2016
Version Date: 2016-08-23

Project
» Spatial variability of larval fish in relation to their prey and predator fields: Patterns and interactions from cm to 10s of km in a subtropical, pelagic environment (OSTRICH)
ContributorsAffiliationRole
Cowen, Robert K.Oregon State University (OSU-HMSC)Principal Investigator
Sponaugle, SuOregon State University (OSU-HMSC)Co-Principal Investigator
Robinson, Kelly L.University of Louisiana at LafayetteContact
Rauch, ShannonWoods Hole Oceanographic Institution (WHOI BCO-DMO)BCO-DMO Data Manager


Dataset Description

Vertical profile data collected by CTD in a subtropical, pelagic environment on R/V Walton Smith cruise, WS15161.


Acquisition Description

The conductivity-temperature-depth (CTD) instrument package is a high resolution vertical profiling sampling system. It is instrumented with a set of environmental sensors including: Seabird CTD, Seabird dissolved O2, and Wet Labs Fluorometer (ECO). All data are passed via copper wire-core cable to an onboard computer, time-stamped for cross-referencing, and saved on a computer hard drive.


Processing Description

Temperature, salinity, pressure, depth, oxygen, and fluorescence data were binned using Seabird’s SeaSave software into 1 db pressure bins by finding the average value for each parameter. Only downcast data was used. Soak time at the surface was excluded from bin averages.

Latitude and longitude values were noted at the time of the cast.


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Parameters

ParameterDescriptionUnits
cruise_nameCruise name unitless
cruise_idOfficial cruise identifier unitless
studyStudy name unitless
castCTD cast number unitless
stationUnique station identifier unitless
latLatitude of cast decimal degrees North
lonLongitude of cast decimal degrees West
dateDate of cast in mm/dd/yyyy format unitless
timeLocal time (24h) of cast in HH:MM:SS format unitless
ISO_DateTime_LocalDate and time (local; EDT) of cast formatted to ISO8601 standard unitless
pressPressure bin decibars (db)
depthClosest depth value to depth bin meters (m)
tempWater temperature degrees Celsius
salSalinity practical salinity units (psu)
condConductivity Siemens per meter (S/m)
oxygenDissolved oxygen milliliters per liter (mL/L)
fluor_vFluorescence volts
flagData quality flag unitless


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Instruments

Dataset-specific Instrument Name
Seabird CTD
Generic Instrument Name
CTD Sea-Bird
Dataset-specific Description
The conductivity-temperature-depth (CTD) instrument package is a high resolution vertical profiling sampling system. It is instrumented with a set of environmental sensors including: Seabird CTD, Seabird dissolved O2, and Wet Labs Fluorometer (ECO). 
Generic Instrument Description
Conductivity, Temperature, Depth (CTD) sensor package from SeaBird Electronics, no specific unit identified. This instrument designation is used when specific make and model are not known. See also other SeaBird instruments listed under CTD. More information from Sea-Bird Electronics.

Dataset-specific Instrument Name
Wet Labs Fluorometer (ECO)
Generic Instrument Name
Fluorometer
Dataset-specific Description
The conductivity-temperature-depth (CTD) instrument package is a high resolution vertical profiling sampling system. It is instrumented with a set of environmental sensors including: Seabird CTD, Seabird dissolved O2, and Wet Labs Fluorometer (ECO). 
Generic Instrument Description
A fluorometer or fluorimeter is a device used to measure parameters of fluorescence: its intensity and wavelength distribution of emission spectrum after excitation by a certain spectrum of light. The instrument is designed to measure the amount of stimulated electromagnetic radiation produced by pulses of electromagnetic radiation emitted into a water sample or in situ.

Dataset-specific Instrument Name
Seabird dissolved O2
Generic Instrument Name
Dissolved Oxygen Sensor
Dataset-specific Description
The conductivity-temperature-depth (CTD) instrument package is a high resolution vertical profiling sampling system. It is instrumented with a set of environmental sensors including: Seabird CTD, Seabird dissolved O2, and Wet Labs Fluorometer (ECO). 
Generic Instrument Description
An electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed


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Deployments

WS15161

Website
Platform
R/V F.G. Walton Smith
Start Date
2015-06-10
End Date
2015-06-27
Description
More information about this cruise is available from the Rolling Deck to Repository (R2R).


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Project Information

Spatial variability of larval fish in relation to their prey and predator fields: Patterns and interactions from cm to 10s of km in a subtropical, pelagic environment (OSTRICH)

Coverage: Straits of Florida, Western Atlantic


Description from NSF award abstract:
The spatial pattern of organisms within pelagic marine environments is of significant ecological importance, and this is particularly true for larval fishes. Patchy prey and predator environments should lead to variation in predator-prey interactions, and thus to variations in larval fish growth and survival. These have proven very difficult to resolve in nature, due in large part to the broad range of spatial scales involved and technological challenges with adequately sampling the various processes simultaneously. This study will use new technology (In Situ Ichthyoplankton Imaging System - ISIIS) to simultaneously measure the fine-scale distribution of larval fishes in relation to their prey, their planktonic predators, and the physical environment of the Straits of Florida. This will be combined with targeted fine-scale net sampling and analyses of individual recent daily larval growth. By sampling a series of water masses at very high resolution, this study will address specific hypotheses concerning: i) the drivers of aggregations and patchiness, and ii) the biological consequences of predator-prey interactions at fine scales.

The primary intellectual merit of the study is the unprecedented examination of plankton processes at scales of relevance to biological interactions among larval fishes, their prey, and their predators. This field study will further our understanding of the predator-prey interactions contributing to spatially explicit larval growth and mortality patterns. The focus on subtropical planktonic food webs will enhance scientific knowledge of these understudied pelagic ecosystems and provide valuable data for comparative analyses with pelagic food web dynamics at higher latitudes. A deeper understanding of pelagic planktonic ecosystems over a range of spatial and temporal scales is increasingly important as the oceans undergo major environmental changes. Substantial increases in the relative dominance of gelatinous organisms, for example, have the potential to cause major shifts in pelagic food webs. A better understanding of the fine-scale interactions of such food webs will help society anticipate and respond to the consequences of such changes.

Note (07 Oct 2014): Funding for this project transferred from award OCE-1333800 to OCE-1419987, coincident with the Principal Investigator's affiliation change from University of Miami to Oregon State University.



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Funding

Funding SourceAward
NSF Division of Ocean Sciences (NSF OCE)

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This document is created by info v 4.1f 5 Oct 2018 from the content of the BCO-DMO metadata database.    2021-03-01  07:59:38