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eng; USA
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NOAA/NESDIS/NODC/NCDDC-National Coastal Data Development Center
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866-732-2382
Facsimile:
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228-688-2968
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Bldg. 1021, Suite 1003
City:
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Stennis Space Center
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MS
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39529
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ncddcmetadata@noaa.gov
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Monday - Friday, 8am - 5pm, Central Standard Time
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2018-03-28
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ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
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ISO 19115-2:2009(E)
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Citation:
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Title:
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Fisheries-Independent Biological and Environmental Trawl Data from the Louisiana Department of Wildlife
and Fisheries (1986-2007) as Part of the Comparative Assessment of Gulf Estuarine Systems (CAGES)
Database (NODC Accession 0115183)
Date:
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2013-11-13
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publication
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Coral Reef Information System
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inapplicable
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https://www.coris.noaa.gov/metadata/records/ISO/html/CAGES_LA_db_MetadataISO_19115_2.html
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information
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6968
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NODC ACCESSION 0115183
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NOAA National Marine Fisheries Service, Southeast Fisheries Science Center, Galveston Laboratory
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Southeast Fisheries Science Center, Galveston Laboratory
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Galveston
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TX
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The CAGES program (Comparative Assessment of Gulf Estuarine Systems) is designed to examine the differences
between estuarine ecosystems and investigate why some are more productive than others. The program focuses
on estuarine areas important to commercial fisheries and includes data on commercial finfish and
invertebrate species, as well as other species commonly captured in trawl sampling. This Louisiana dataset
is a subset of the CAGES Relational Database which is a compilation of fishery-independent data contributed
by natural resource agencies of the Gulf States (Texas, Louisiana, Mississippi, Alabama, and Florida). This
data set includes data from trawls collected by the Marine Fisheries Division of the Louisiana Department of
Wildlife and Fisheries (LDWF), as well as associated hydrographic data. Trawl data were used to calculate
CPUE (catch per unit effort) at each station for the years 1986 through 2007.
Purpose:
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The purpose of CAGES is to compile the fishery independent data from five Gulf States into a database to more
easily compare the fisheries across the US Gulf of Mexico coast. This dataset includes data collected from
Louisiana only. The CAGES database is intended for scientific research only.
Status:
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completed
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Dr. Harmon Brown
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NOAA National Marine Fisheries Service, Southeast Fisheries Science Center, Galveston Laboratory
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409-766-3500
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Galveston Laboratory, 4700 Avenue U
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Galveston
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TX
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77551
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USA
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Monday - Friday, 8am - 5pm, Central Standard Time
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comparative assessment of gulf estuarine systems
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CAGES
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Louisiana Department of Wildlife and Fisheries
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Marine Fisheries Division
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estuary
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coastal bay
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distribution
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fishery independent data
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CPUE
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catch per unit effort
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trawl
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finfish
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invertebrate
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vertebrate
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crustacean
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salinity
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temperature
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turbidity
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air temperature
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water temperature
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hydrological
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hydrographic
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saltwater species
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brackish water species
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freshwater species
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theme
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None
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unknown
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Gulf of Mexico
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Gulf Coast
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Louisiana
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Barataria Bay
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Black Lake
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Breton Sound
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Chandeleur Sound
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Grand Lake
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Lake Borgne
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Lake Calcasieu
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Lake Pontchartrain
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Lost Lake - Four League Bay
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Terrebonne-Timbalier Bays
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Vermillion-Cote Blanche Bays
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place
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OCEAN BASIN > Atlantic Ocean > Gulf of Mexico > Louisiana
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COUNTRY/TERRITORY > United States of America > Louisiana
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OCEAN BASIN > Atlantic Ocean > Gulf of Mexico
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Numeric Data Sets > Biology
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missing
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EARTH SCIENCE > Oceans > Marine Biology > Marine Invertebrates
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EARTH SCIENCE > Oceans > Salinity/Density > Salinity
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EARTH SCIENCE > Oceans > Ocean Chemistry > Oxygen
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EARTH SCIENCE > Oceans > Marine Biology > Fish
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EARTH SCIENCE > Oceans > Ocean Temperature > Water Temperature
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Access Constraints: None Use Constraints: None Distribution Liability: NOAA and NODC make no warranty,
expressed or implied, regarding these data, nor does the fact of distribution constitute such a
warranty. NOAA and NODC cannot assume liability for any damages caused by any errors or omissions in the
data.
Aggregation information:
MD_AggregateInformation:
Aggregate dataset name:
CI_Citation:
Title:
Character string:
Nekton from fishery-independent trawl samples in estuaries of the U.S. Gulf of Mexico: a Comparative
Assessment of Gulf Estuarine Systems (CAGES)
Date:
CI_Date:
Date:
Date:
2013
Date type:
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publication
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Character string:
Brown, H., T.J. Minello, G.A. Matthews, M. Fisher, E.J. Anderson, R. Riedel, and D.L. Leffler.
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resourceProvider
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U.S. Dept. Commerce NOAA Tech. Memo. NMFS-SEFSC-647, 269 p.
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largerWorkCitation
Language:
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eng; USA
Topic category:
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biota
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oceans
Environment description:
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Native Dataset Environment: MS Access database; CAGES_LA.accdb; 128 MB.
Extent:
EX_Extent:
Geographic element:
EX_GeographicBoundingBox:
West bound longitude:
Decimal:
-93.43083
East bound longitude:
Decimal:
-88.84333
South bound latitude:
Decimal:
28.99333
North bound latitude:
Decimal:
30.37
Temporal element:
EX_TemporalExtent:
Extent:
Time period:
Description:
ground condition
Begin position:
1986-01-02
End position:
2007-12-27
Content information:
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false
Feature catalogue citation:
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Entity and Attribute Information
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unknown
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Entity and Attribute Overview: Data in the Louisiana CAGES database consists of seven (7) MS Access
database tables each of which has an accompanying exported csv file. Tables/files and fields, in the
order they occur in the csv files, are as follows: LA CPUE (Sample Code, YYYY, MM, DD, Water Body,
Scientific Name, CPUE); Louisiana Lengths (Sample Code, Species Code, Length); Louisiana Species
(Species Code, Scientific Name, Common Name); Louisiana Stations (Station Code, CSA, Station, Latitude,
Longitude, Site Name, Water Body); Louisiana Trawls (Sample Code, Species Code, Total Number); Louisiana
Samples (Sample Code, Station Code, YYYY, MM, DD, Time, Duration); Louisiana Hydrological (Sample Code,
Surface Salinity, Bottom Salinity, Air Temperature, Surface Water Temperature, Bottom Water Temperature,
Turbidity). In the Louisiana Stations table CSA stands for Coastal Study Area. Latitude and Longitude
are provided in decimal degrees; depths are in meters (m); and Times is local time. Units of measure for
other fields are as follows: CPUE (number caught per hectare (#/ha)), Length (mm), Time (HH:MM),
Duration (Minutes), Salinity (ppt), Air Temperature (Degrees Celsius), Water Temperature (Degrees
Celsius), Turbidity (NTU (Nephelometric Turbidity Unit)). Note: Temperature values have known issues,
possibly due to entry and or conversion errors. Entity and Attribute Detail Citation: Brown, H., T.J.
Minello, G.A. Matthews, M. Fisher, E.J. Anderson, R. Riedel, and D.L. Leffler. 2013. Nekton from
fishery-independent trawl samples in estuaries of the U.S. Gulf of Mexico: a Comparative Assessment of
Gulf Estuarine Systems (CAGES). U.S. Dept. Commerce NOAA Tech. Memo. NMFS-SEFSC-647, 269 p.
Distribution information:
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Organisation name:
Character string:
US National Oceanographic Data Center
Position name:
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Customer Service
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CI_Telephone:
Voice:
Character string:
301-713-3277 x148
Facsimile:
Character string:
301-713-3302
Address:
CI_Address:
Delivery point:
Character string:
1315 East-West Hwy; SSMC3 4th Floor
City:
Character string:
Silver Spring
Administrative area:
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MD
Postal code:
Character string:
20910-3282
Country:
Character string:
USA
Electronic mail address:
Character string:
NODC.Services@noaa.gov
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Linkage:
URL:
http://accession.nodc.noaa.gov/0115183
Function:
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information
Data quality information:
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unknown
Report:
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unknown
Report:
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Evaluation method description:
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NOAA cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data.
Result:
unknown
Report:
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Measure description:
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NOAA cannot guarantee the scope, accuracy or timeliness of this information.
Result:
unknown
Lineage:
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Description:
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The Louisiana Department of Wildlife and Fisheries (LDWF) Marine Fisheries Division conducts
fishery-independent sampling to assess the state's natural resources, to aid in setting opening and
closing dates for fisheries, and to aid in setting catch limits for regulated species.
Fishery-independent trawl sampling using the 4.9-m (16-ft) flat otter trawls was scheduled for each
year as follows: Nov-Feb (bi-weekly) and Mar-Oct (weekly). Hydrographic data were collected before
each trawl tow. Temperature and salinity were measured from surface and bottom waters, and turbidity
measured from surface water. Water depth was recorded at the start of the tow. The trawl was towed
for 10 minutes: timed from when the trawl first began to move forward to when it stopped forward
movement. Towing speed was 4.8 kph (3 mph), and the tow path was either weaving, circular, or
straight depending on depth and design of the water body (bayou or open bay), allowing the prop-wash
to pass to the side or over the top of the trawl. LDWF provided data for the years 1986-2007. All
organisms caught in the trawl were identified to the lowest taxon possible (usually genus and
species), counted, and up to 50 of each species were measured in 5-mm intervals. Size measurements
were taken as follows: shrimp - total length (TL) measured from the anterior tip of the rostrum to
posterior tip of the telson; crabs - carapace width (CW) measured from tip to tip of posterior
-lateral spines of the carapace; and fish - measured as total length (LDWF 2002).
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Catch data in trawls were converted to numbers caught per hectare (#/ha) using the tow times and
calculated conversion factors. The conversion factor was calculated based on an assumed 80% spread
of the width of the trawl webbing along the headrope (defined here as the headrope length) and the
estimated distance towed in one minute calculated from reported tow times. The conversion factor is
equal to the time needed (in minutes) for the trawl to cover one hectare. To calculate the CPUE the
following formula was used: Conversion factor / Tow duration (min) X Number caught = #/ha. The
conversion factor for Louisiana was calculated to be 32.04.
Metadata maintenance:
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unknown
Maintenance note:
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This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial
Metadatastandard version FGDC-STD-001-1998 using the June 2011 version of the FGDC CSDGM to ISO 19115-2
transform. The Spatial Reference Information is not currently mapped over to ISO but will be mapped in
future versions.
Metadata author:
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Organisation name:
Character string:
NOAA/NESDIS/NODC/NCDDC-National Coastal Data Development Center
Contact information:
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Phone:
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Voice:
Character string:
866-732-2382
Facsimile:
Character string:
228-688-2968
Address:
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Bldg. 1021, Suite 1003
City:
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Stennis Space Center
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MS
Postal code:
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39529
Electronic mail address:
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ncddcmetadata@noaa.gov
Hours of service:
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Monday - Friday, 8am - 5pm, Central Standard Time
Role:
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custodian