Description
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 gill net data collected for the San Antonio bay system in Texas from 1976 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.
Data Records
The data in this sampling event resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 2,845 records.
2 extension data tables also exist. An extension record supplies extra information about a core record. The number of records in each extension data table is illustrated below.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versions
The table below shows only published versions of the resource that are publicly accessible.
Rights
Researchers should respect the following rights statement:
The publisher and rights holder of this work is United States Geological Survey. To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0). Users may copy, modify, distribute and use the work, including for commercial purposes, without restriction.
GBIF Registration
This resource has been registered with GBIF, and assigned the following GBIF UUID: d0351e80-ae78-46ea-8601-8c458282ae73. United States Geological Survey publishes this resource, and is itself registered in GBIF as a data publisher endorsed by GBIF-US.
Keywords
Occurrence; Observation; Occurrence
External data
The resource data is also available in other formats
Contacts
- Originator ●
- Point Of Contact
Geographic Coverage
San Antonio Bay System. All waters, including all saltwater bayous, between the eastern edge of the Chain of Islands in Pass Cavallo to the Chain of Islands in the western edge of Ayres Bay and all waters from the mouth of the Guadalupe River including Mission Lake, Guadalupe Bay and the lower delta of the Guadalupe River.
| Bounding Coordinates | South West [28, -97], North East [28.5, -96] |
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Additional Metadata
marine, harvest by iOBIS
| Alternative Identifiers | d0351e80-ae78-46ea-8601-8c458282ae73 |
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| https://www1.usgs.gov/obis-usa/ipt/resource?r=tpwd_harc_texassanantoniobay_gillnet_20150202 |