Data Set Citation
Contreras D. 2008. POD! Fish- DFG Fall Midwater trawl sampling Sept.-Dec.1967-2006.
KNB Data Registry: urn:lsid:knb.ecoinformatics.org:nceas:902:1 (http://knb.ecoinformatics.org/knb/metacat/nceas.902.1/nceas).
Metadata download:Ecological Metadata Language (EML) File
Online Distribution Info:
Download File: http://www.delta.dfg.ca.gov/data/mwt/
Offline Distribution Info:
Medium:digital
Data Set Owner(s):
Organization:NCEAS 12192: Fleishman: Ecosystem analysis of pelagic organism declines in the Upper San Francisco Estuary
Organization:National Center for Ecological Analysis and Synthesis
Individual: Dave Contreras
Organization:California Department of Fish and Game (DFG)
Email Address:
dcontreras@dfg.ca.gov
Metadata Provider(s):
Individual: Marissa Bauer
Associated Party:
Individual: Dave Contreras
Role:
associatedParty
Abstract:
 
Midwater trawl sampling September-December 1967-2006 Purpose of DFG's Fall Midwater Trawl survey is to evaluate potential water project effects on survival of young striped bass. The objective of the fall midwater trawl survey is to produce an index of monthly abundance of young striped bass. The sum of the monthly indices is compared to the summer townet abundance index to evaluate survival. Midwater Trawl Field Activities: From 1967 to 1978 the survey length was variable, sometimes starting in July or August, with September the usual starting month. The survey was never run beyond March. In 1980 the survey was shortened to cover the period of September to December due to variability in abundance indices associated with winter storm events. Midwater trawl Sampling stations cover a broad range of habitats.
License and Usage Rights:
 
no restrictions
Geographic Coverage:
Geographic Description:San Francisco Bay-Estuary
Bounding Coordinates:
West:  122.3833   degrees
East:  122.3833   degrees
North:  38.0833   degrees
South:  38.0833   degrees
Temporal Coverage:
Begin:
1967
End:
2006
Access Control:
Auth System:knb
Order:denyFirst
Access Rules:
ALLOW:
[all]
uid=nceasadmin,o=NCEAS,dc=ecoinformatics,dc=org
ALLOW:
[all]
uid=mbauer,o=NCEAS,dc=ecoinformatics,dc=org
ALLOW:
[read]
public
Contact:
Individual: Dave Contreras
Organization:California Department of Fish and Game (DFG)
Email Address:
dcontreras@dfg.ca.gov
Methods Info:
Step 1:  
Description:
Equipment Net Description
A mouth opening of 12 foot by 12 foot (3.7 m2). The mesh size decreases from 8 inch mesh in the forward panel to one half inch mesh at the cod end.