8603 Houston Ship Channel 1993-1994 Data Set Published / External 3954 Galveston Fisheries Ecology Projects Project Completed Between May 5, 1993 and September 19, 1994, we collected quantitative 1-m2 area drop samples and measured a variety of habitat attributes using field surveys and aerial photography to characterize three existing marshes (Atkinson Island, Hog Island, and Cedar Point) in Galveston Bay. We also compared nekton densities among different types of intertidal and shallow subtidal habitats (pond, channel, cove, open bay, and four marsh types). The vegetated surface consistently contained more species and dominant species exhibited at least some degree of habitat selection. To maximize fishery habitat, we recommend placing greater emphasis on constructing low marsh edge habitat by creating large areas of Spartina alterniflora and Scirpus maritimus marsh interspersed with a dense network of shallow channels and interconnected ponds. The purpose of this study was to document and compare the use by nekton of marsh and adjacent open-water areas within a shallow region of Galveston Bay, Texas. Characterization of the Houston Ship Channel corridor from Upper to Lower Galveston Bay, Texas: 1993-1994. Theme 1 m2 cylindrical drop trap sampler Theme Environmental Data Theme Farfantepenaeus aztecus Theme Farfantepenaeus duorarum Theme Habitat characteristics Theme Land/Ocean Exchanges Theme Litopenaeus setiferus Theme abundance Theme biomass Theme brown shrimp Theme crabs Theme distribution Theme estuarine dependent Theme fish Theme habitat recovery Theme invertebrates Theme macrofauna Theme nekton Theme pink shrimp Theme predator Theme prey Theme salt marsh Theme shrimp Theme submerged aquatic vegetation Theme white shrimp Temporal 1993 Temporal 1994 Spatial Atkinson Island Spatial Bolivar Peninsula Spatial Cedar Point Spatial Elm Grove Point Spatial Galveston Bay Spatial Gulf of Mexico Spatial Hog Island Spatial Texas Southeast Fisheries Science Center Miami FL USA Location Of The Main Office Of The South East Fisheries Science Center Data Set Table (digital) N/A N/A N/A 52909 Penaeid Data Published / External Completed Table contains count, measurement, and weight information, if available, for penaeid shrimp only. If count = 0, a code of -999 in measurement column indicates nothing to measure or weigh for given record or sample. If count =1, a code of -999 in measurement column indicates damaged specimens that could not be measured for given taxon. An empty column indicates parameter was not measured. It was created by export of a sql server database No biomass/weight data for penaeids. All intact nekton measured; no sub-sampling. Penaeid shrimp measured and recorded to nearest mm total length (TL); Data Table Yes Table contains count, measurement, and weight information, if available, for penaeid shrimp only. If count = 0, a code of -999 in measurement column indicates nothing to measure or weigh for given record or sample. If count =1, a code of -999 in measurement column indicates damaged specimens that could not be measured for given taxon. An empty column indicates parameter was not measured. 1 RECORD_ID_NUMBER NUMBER 22 Yes Yes 6 0 Active System generated record number assigned to each data stream 2 PROJECTNAME VARCHAR2 50 Yes No Active Combination of assigned project name and year(s) study was conducted 3 SAMPLENUMBER VARCHAR2 50 Yes No Active Project acronym-year-sample number combination used to identify each data record LWEINBER.SABINENWR1999_SAMPLES 4 TAXON VARCHAR2 100 Yes No Active Scientific name (any level) assigned under Linnaean system of classification 5 COUNT NUMBER 22 Yes No 38 0 Active Number of individuals of a given taxon measured and/or unmeasured 6 TOTAL_LENGTH_IN_MM NUMBER 22 No No 5 1 Active Specimen total length in millimeters as measured from tip of rostrum to tip of telson. Code -999 in length column indicates either no specimens of given taxon collected (count = 0) or a damaged specimen not measured. If sample was subsampled, code -999 in length column represents remaining number of specimens above subsample size not measured. If column empty, TL was not measured. 7 CARAPACE_LENGTH_IN_MM NUMBER 22 No No 5 1 Active Specimen carapace length in millimeters as measured from anterior to posterior margins of carapace. Code -999 in length column indicates either no specimens of given taxon collected (count = 0) ; a damaged specimen not measured; or, carapace length was not measured for project. If sample was subsampled, code -999 in length column represents remaining number of specimens above subsample size not measured. Carapace length (excludes rostrum), unless stated otherwise in comments section. If column empty, CL was not measured. 8 MASS_IN_GRAMS NUMBER 22 No No 7 4 Active Weight of an individual shrimp, unless project comments or spreadsheet comments column state otherwise. If column empty, specimens were not weighed. 9 TOTALBIOMASS_IN_GRAMS NUMBER 22 No No 7 4 Active Total weight of all penaeids of a given taxon by sample, unless project comments or spreadsheet comments column state otherwise. If column empty, specimens were not weighed. 10 COMMENTS VARCHAR2 255 No No Active Optional general or specific comment about overall project or a given record 52910 Samples Data Published / External Completed Table contains sample information including project name, sample sites, date, gear type, environmental, habitat, and vegetation data. A value of '-999' in any column indicates parameter was not measured or information is not available for given record. Empty column also indicates parameter was not measured. No samples 38, 40, or 186 through 199. Nekton data are in 'tblSizeRange', except penaeid shrimp, which are located on 'tblPenaeids'. Spreadsheet Yes Table contains sample information including project name, sample sites, date, gear type, environmental, habitat, and vegetation data. A value of '-999' in any column indicates parameter was not measured or information is not available for given record. Empty column also indicates parameter was not measured. 1 ProjectName CHAR 50 No No Active Combination of assigned project name and year(s) study was conducted. 2 SampleNumber CHAR 50 No No Active Generally, project acronym-year-sample number combination used to identify each data record. 3 StudySite CHAR 60 No No Active Name assigned to study site usually obtained from a local or regional map. 4 Date Date 8 No No Active Date of sample collection in Month/Day/Year format. 5 Time NUMBER 8 No No Active Time of sample collection in Hours:Minutes AM/PM format. 6 GPSLatitude NUMBER 7 No No Active General latitude coordinates, often estimated, converted to decimal degrees. 7 GPSLongitude NUMBER 7 No No Active General longitude coordinates, often estimated, converted to decimal degrees. 8 GearType NUMBER No No Active Code number assigned to identify type of sampler used in study. 1=Drop trap (1.14-m diameter, sampled 1-m2 area) 2=Drop trap (1.8-m diameter, sampled 2.6-m2 area) 3=Throw trap (1-m2, sampled 1-m2 area) 4=Lift net 5=Trawl (i.e., otter) 6=Visual transect 7=Beam trawl 8=Throw net 9=Benthic sled 10=Seine 11=Plankton net 12=Growth cages and mesocosms 9 AreaSampled NUMBER 4 No No Active Area sampled by gear and gear specific. 10 FieldSalinity_in_ppt NUMBER 4 No No Active Salinity recorded in the field in ppt. 11 LaboratorySalinity_in_ppt NUMBER 4 No No Active Salinity measured in the laboratory in ppt. 12 WaterTemperature_in_°C NUMBER 4 No No Active Water temperature just below surface in °C. 13 Dissolved_Oxygen_in_ppm NUMBER 4 No No Active Dissolved oxygen in ppm; equivalent to mg/L. 14 Turbidity_in_NTU's NUMBER 4 No No Active Turbidity generally in nephelometric turbidity units (NTU's). 15 Distance_to_Marsh_Edge_in_m NUMBER 4 No No Active Distance to Marsh Edge from middle of sampler in meters. Distance may be estimated visually, or measured with measuring tape, or by rangefinder. 16 Distance_to_Seagrass_Edge_in_m NUMBER 4 No No Active Distance to Seagrass Edge from middle of sampler in meters. Distance may be estimated visually, or measured with measuring tape, or by rangefinder. 17 Inside_Depth_One_in_cm NUMBER 3 No No Active First depth measurement inside sampler in centimeters. 18 Inside_Depth_Two_in_cm NUMBER 3 No No Active Second depth measurement inside sampler in centimeters. 19 Inside_Depth_Three_in_cm NUMBER 3 No No Active Third depth measurement inside sampler in centimeters, if available. 20 Inside_Depth_Four_in_cm NUMBER 3 No No Active Fourth depth measurement inside sampler in centimeters, if available. 21 Inside_Depth_Five_in_cm NUMBER 3 No No Active Fifth depth measurement inside sampler in centimeters, if available. 22 GeneralHabitat CHAR 30 No No Active Primary habitat level: General habitat type. Coral Reef=Habitat built by calcareous animals Mangrove=Habitat dominated by black or red mangroves Marsh=Habitat dominated by marsh emergent plants or grasses Ocean=Non-estuarine, continental shelf area Open water=Shallow, nonvegetated estuarine bottom (formerly called SNVB or SNB) Oyster reef=Bottom area dominated by oyster shell habitat Spoil Site=Site rebuilt by dredged, relocated bottom sediments Submerged Aquatic Vegetation =Open water, vegetated bottom area primarily of Submerged Aquatic Vegetation (SAV) Not Available=No information 23 PhysicalHabitat CHAR 25 No No Active Secondary habitat level: Physical habitat type that better describes General Habitat. Nonvegetated=Unvegetated General Habitat of open water with soil or sandy bottom Shell=General Habitat dominated by oyster shell or other hard bottom Vegetated=Vegetated General Habitat of either marsh or Submerged Aquatic Vegetation (SAV) Not Available No information 24 DominantPlantSpecies CHAR 30 No No Active Dominant taxon of vegetation present inside sampler or in nearby adjacent area. 25 MarshSeagrassType CHAR 25 No No Active Tertiary habitat level: Describes sites as natural, created, restored, transplanted, or naturally revegetated. Marsh constructed=excavating, backfilling, grading, etc. Non-constructed=minimally disturbed or untouched site Non-transplanted=site where seagrass occurs 'naturally' Site repopulated/reseeded 'by nature'=marsh plants, seagrass, or Submerged Aquatic Vegetation (SAV) Enhanced wetlands altered or restored=by man to improve a particular function 26 MiscDescriptor CHAR 50 No No Active Pertinent miscellaneous information about sample site, location, replicate number, etc., not elsewhere recorded for given record. Edge=Marsh edge at interface of marsh and non-marsh areas 27 GeneralHabitatComments CHAR 200 No No Active General comments provided for clarification purposes. 28 PlantBiomass_in_grams NUMBER 7 No No Active Optional column used to indicate if method(s) to obtain vegetation weight, or the measurement unit differed from standard procedures. 29 PlantWetBiomass_in_grams NUMBER 7 No No Active Vegetation weight in grams obtained after blotting plant material dry, if available. 30 PlantDryBiomass_in_grams NUMBER 7 No No Active Air or oven-dried [dry or ash] weight in grams. If dry weight to 0.001 or 0.0001 grams. 31 StemCount NUMBER 4 No No Active Total or subsampled number of plant stems inside sampler (all taxa combined). Unprocessed unit-free numbers. 32 VegCover NUMBER 3 No No Active Estimated percentage of bottom area inside sampler covered by vegetation. 33 PlantComments CHAR 255 No No Active Miscellaneous information on secondary vegetation types and other comments. 52911 SizeRange Data Published / External Completed Table contains count, size range, and weight information, if available, for fish, non-penaeid shrimp, and 'Other Invertebrates'. If count = 0, a code of '-999' indicates no fish, non-penaeid shrimp, and/or 'Other Invertebrates' to measure or weigh for given record or sample. If count ≥1, a code of '-999' in measurement column indicates damaged specimen(s) that could not be measured for given taxon. Empty column indicates parameter was not measured. Table was created by export from a sqlserver database If count = 0, a code of -999 in measurement column indicates nothing to measure or weigh for given record or sample. If count =1, a code of -999 in measurement column indicates damaged specimens that could not be measured for given taxon. An empty column indicates parameter was not measured. It was created by export of a sql server database No samples 38, 40, or 186 through 199. Midpoint of each size interval is for development of length frequency tables, and does not represent the mean size of individuals measured. No biomass/weight data for any nekton. Fish recorded in 10-mm total length (TL) intervals; ‘Other crustaceans’ (non-penaeid shrimp and crabs) recorded in 5-mm TL or carapace weight (CW) intervals. Penaeid shrimp data located on 'tblPenaeids' Data Table Yes Table contains count, measurement, and weight information, if available, for penaeid shrimp only. If count = 0, a code of -999 in measurement column indicates nothing to measure or weigh for given record or sample. If count =1, a code of -999 in measurement column indicates damaged specimens that could not be measured for given taxon. An empty column indicates parameter was not measured. 2 PROJECTNAME VARCHAR2 50 Yes No Active Combination of assigned project name and year(s) study was conducted 3 SAMPLENUMBER VARCHAR2 50 Yes No Active Project acronym-year-sample number combination used to identify each data record LWEINBER.SABINENWR1999_SAMPLES 4 TAXON VARCHAR2 100 Yes No Active Scientific name (any level) assigned under Linnaean system of classification 5 COUNT NUMBER 22 Yes No 38 0 Active Number of individuals of a given taxon measured and/or unmeasured 6 Sizerange_in_mm Character 20 No No 5 1 Active Minimum and maximum length (total or standard), or carapace width (crabs only), in millimeters, of individuals in the sample or given subsample, by taxon, if available. The word to is used in the range so data from .csv will come in as text value rather than a date. mm 7 RangeMidpoint_in_mm NUMBER 22 No No 5 1 Active Numeric midpoint of each size interval, not mean size of individuals measured. mm 8 MASS_IN_GRAMS NUMBER 22 No No 7 4 Active Weight of an individual shrimp, unless project comments or spreadsheet comments column state otherwise. If column empty, specimens were not weighed. 10 COMMENTS VARCHAR2 255 No No Active Optional general or specific comment about overall project or a given record 52912 Published / External Completed Explains Codes and Values In the Samples Data Table Data Table Yes Provided tabular level metadata on related/underlying data table 10 Column Character 250 Yes No Active Names Of The Column Explained/Defined 20 Value Character 100 Yes No Active The actual Value in the data column 30 Description Character 100 Yes No Active Provides a more complete definition/decode of the value provided Data Steward 1993 Person Rozas, Lawrence P Contact by email preferred. Distributor 2018 Organization Southeast Fisheries Science Center SEFSC https://ror.org/0396y0w87 75 Virginia Beach Drive Miami FL 33149 USA (305)361-5761 https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center About SEFSC Online Resource 8:00 a.m. - 4:30 p.m. EST Metadata Contact 1993 Person Rozas, Lawrence P Contact by email preferred. Point of Contact 2018 Person Baumer, Tim J tim.baumer@noaa.gov 4700 Avenue U Galveston TX 77551 409-766-3784 Contact by email preferred. Ground Condition -94.981785 -94.673009 29.693273 29.47571 Gulf Of Mexico Range 1993 1994 Unclassified Open to everyone Download .zip file and then extract all files that it contains None Data set is not for use in litigation. While efforts have been made to ensure that these data are accurate and reliable, NOAA cannot assume liability for any damages or misrepresentations caused by inaccuracies in these data, or as a result of these data being used on a particular system. NOAA makes no warranty, expressed or implied, nor does distribution constitute any such warranty https://grunt.sefsc.noaa.gov/parr/8603.zip 2018 Organization Southeast Fisheries Science Center https://ror.org/0396y0w87 8603.zip ONLINE RESOURCE DATABASE (MICROSOFT SQLSERVER) Zip Not Chked https://www.galvestonlab.sefsc.noaa.gov/meta/houston_ship_channel_1993_1994_final_metadata.pdf meta data record Data were entered into spreadsheets and checked against the raw data sheet to avoid entry errors Each sample was assigned a unique identification code. Field collected samples were tagged redundantly (e.g. one label inside container and a matching label attached to outside of container). The sample identifier and associated information (e.g., date, location, habitat) was recorded on the field data sheet. Once a sample arrived at the laboratory, the label remained with the sample throughout the various stages of sample processing. Sample data were entered into an Excel spreadsheet or similar database manager, and the information was printed out and compared against the field data sheets by two biologists. Corrections were made at this time. The electronic file was also sorted and examined by the Lab Supervisor or other project personnel in a variety of ways to look for outliers, missing data, and other potential errors. No 0 Yes Yes No 365 This data is currently wavered under the current NOAA guidelines for relational databases. To Be Determined 365 The data resides on a secure government network requiring multi-factor authentication for network access. 1 After sample collection, field data were entered into an Excel spreadsheet or database file (DBF) using database manager software. A text file was created to describe these data and associated variables. Entered data were checked against the field sheets by two biologists to minimize entry errors. Samples were processed in the laboratory, sorted, specimens identified and measured, and information was entered into an Excel spreadsheet or DBF file. Files were printed out and compared against original data sheets by two biologists for data entry errors. Corrections were made at this time, the electronic file was saved, and a back-up copy made. Hard copies of the QCd files were printed and stored in the project folder along with the original field and laboratory data sheets. The electronic file was also sorted and examined by the Lab Supervisor or other project personnel in a variety of ways to look for outliers, missing data, and other potential errors. Verified data files were then saved electronically on the Galveston Laboratory server and backed-up as needed. 52913 Document 52909 Entity 52910 Entity 52911 Entity 52912 Entity gov.noaa.nmfs.inport:8603 Lee Weinberger 2008-12-12T05:41:28 SysAdmin InPortAdmin 2026-03-04T19:17:18 2021-10-21 Southeast Fisheries Science Center SEFSC 75 Virginia Beach Drive Miami FL 33149 USA (305)361-5761 www.sefsc.noaa.gov 8:00 a.m. - 4:30 p.m. EST 1001 Public No No 2021-10-21 1 Year 2022-10-21