Dataset

TPWD HARC Texas Coastal Fisheries Lower Laguna Madre 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 Lower Laguna Madre 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 22:06

URL: https://ipt-obis.gbif.us/resource?r=tpwd_harc_texaslowerlagunamadre_trawl_20150130

19,443
occurrence records
62
taxa
61
species

Taxa

Missing and invalid fields

Field Missing Invalid
occurrenceStatus 19,443
100.0%
scientificNameID 19,443
100.0%

Quality flags

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

Flag Dropped Records
ON_LAND 19,443
100.0%
MIN_DEPTH_EXCEEDS_MAX 86
0.4%

Measurement types

DNA derived data