Dataset

TPWD HARC Texas Coastal Fisheries San Antonio Bay Trawl

OBIS USA Open in mapper Explore occurrences

The Texas Parks and Wildlife Department (TPWD) utilizes several sampling gears for fisheries-independent monitoring of finfish and shellfish communities. They include bag seines, trawls, gill nets and oyster dredges. TPWD uses multiple gears in a random sampling protocol, and they identify (to the lowest taxonomic unit possible) and count everything that they collect. This dataset contains bay trawl data collected for the San Antonio bay system in Texas from 1982 to 2008. Collected data also included spatial and temporal information describing the sample location and time, collection gear information, hydrological data (e.g. dissolved oxygen, water temperature, and salinity), weather conditions, species caught, and number of each species captured. Houston Advanced Research Center (HARC) calculated the relative abundance data, calculated as the catch of a particular species in a sample divided by the total number of animals captured in that sample. Absence data was recorded for species on the TPWD species sampling lists that were not captured during sampling.

Published: November 21, 2017 at 22:04

URL: https://ipt-obis.gbif.us/resource?r=tpwd_harc_texassanantoniobay_trawl_20150202

41,308
occurrence records
55
taxa
51
species

Taxa

Missing and invalid fields

Field Missing Invalid
maximumDepthInMeters 34
0.1%
minimumDepthInMeters 83
0.2%
occurrenceStatus 41,308
100.0%
scientificNameID 41,308
100.0%

Quality flags

The OBIS data quality flags are documented at https://github.com/iobis/obis-qc.

Flag Dropped Records
MIN_DEPTH_EXCEEDS_MAX 3,387
8.2%
ON_LAND 444
1.1%
WORMS_ANNOTATION_RESOLVABLE 255
0.6%
NO_DEPTH 34
0.1%
NOT_MARINE 8
0.0%

Measurement types

DNA derived data