Striped Bass Seine Survey Juvenile Index

Federal Geographic Data Committee (FGDC) Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Reference_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Durell, E.Q. and Weedon, C., Maryland Department of Natural Resources

Publication_Date: 2002

Title: Striped Bass Seine Survey Juvenile Index

Edition:

Geospatial_Data_Presentation_Form:

Series_Information:

Series_Name:

Issue_Identification:

Publication_Information:

Publication_Place:

Publisher: Maryland Department of Natural Resources, Fisheries Service.

Other_Citation_Details:

Online_Linkage: http://www.dnr.state.md.us/fisheries/juvindex/index.html.

Description:

Abstract:

The juvenile striped bass survey documents annual year-class success for young-of-the-year (YOY) striped bass (Morone saxatilis) and relative abundance of many other fish species in Chesapeake Bay. Over 100 fish species have been collected since 1954. Annual indices of relative abundance provide an early indicator of future adult stock recruitment and document annual variation and long-term trends in abundance and distribution. Sample Area and Intensity: Juvenile indices are derived annually from sampling at 22 fixed stations within Maryland's portion of the Chesapeake Bay. Stations have been sampled continuously since 1954, with changes in some station locations. They are divided among four of the major spawning and nursery areas: seven each in the Potomac River and Head of Bay areas and four each in the Nanticoke and Choptank Rivers. Sampling is monthly, with rounds (sampling excursions) occurring during July (Round I), August (Round II), and September (Round III). Replicate seine hauls, a minimum of thirty minutes apart, are taken at each site on each sample round. This produces a total of 132 samples from which bay-wide means are calculated. From 1954 to 1961, juvenile surveys included various stations and rounds. Sample sizes ranged from 34 to 46. Present indices derived for this period include only stations which are consistent with subsequent years. In 1962, stations were standardized and a second sample round was added for a total of 88 samples. A third sample round, added in 1966, increased sample size to 132. Auxiliary stations have been sampled on an inconsistent basis and are not included in survey indices. These data enhance geographical coverage in rivers with permanent stations or provide information from other river systems. They are also useful for replacement of permanent stations when necessary.

Purpose:

Not Available

Supplemental_Information:

Not Available

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19540101

Ending_Date: Unknown

Currentness_Reference:Unknown

Status:

Progress: In Work

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Description_of_Geographic_Extent:

Bounding_Coordinates:

West_Bounding_Coordinate: -78.0

East_Bounding_Coordinate: -75.0

North_Bounding_Coordinate: 40.0

South_Bounding_Coordinate: 36.0

Keywords:

Theme:

Theme_Keyword_Thesaurus: GCMD SCIENCE PARAMETERS

Theme_Keyword_Thesaurus: ANCILLARY KEYWORDS

Theme_Keyword_Thesaurus: ISO TOPIC CATEGORY

Theme_Keyword_Thesaurus: DATA SET LANGUAGE

Theme_Keyword: EARTH SCIENCE > AGRICULTURE > AGRICULTURAL AQUATIC SCIENCES > FISHERIES > STRIPED BASS

Theme_Keyword: EARTH SCIENCE > OCEANS > AQUATIC SCIENCES > FISHERIES > STRIPED BASS

Theme_Keyword: EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH > RAY-FINNED FISHES > PERCH-LIKE FISHES > STRIPED BASS

Theme_Keyword: Juvenile Index

Theme_Keyword: Seine Survey

Theme_Keyword: Maryland

Theme_Keyword: Potomac River

Theme_Keyword: Nanticoke River

Theme_Keyword: Choptank Rivers

Theme_Keyword: Alewife Herring

Theme_Keyword: American Shad

Theme_Keyword: Atlantic Croaker

Theme_Keyword: Atlantic Menhaden

Theme_Keyword: Atlantic Silverside

Theme_Keyword: Bay Anchovy

Theme_Keyword: Blueback Herring

Theme_Keyword: Bluefish

Theme_Keyword: Mummichog

Theme_Keyword: Spot

Theme_Keyword: Spottail Shiner

Theme_Keyword: White Perch

Theme_Keyword: FARMING

Theme_Keyword: BIOTA

Theme_Keyword: ECONOMY

Theme_Keyword: OCEANS

Theme_Keyword: ENGLISH

Place:

Place_Keyword_Thesaurus: GCMD

Place_Keyword: CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > CHESAPEAKE BAY

Access_Constraints: To access data you must use Internet Explorer. Click on links at to view relative abundance data and graphs for a particular species. The fifteen most commonly requested species are pictured. Data is presented in an Excel file which can be downloaded by clicking "Save As" on your browser. Each file contains data and graphs for the Chesapeake Bay (includes all areas sampled), Choptank River, Head of Bay area, Nanticoke River, and Potomac River. Each system appears in a separate worksheet. Although system-specific indices appear for each species, they may not always be appropriate. For example: only one site on the Choptank River is of low enough salinity to be considered good habitat for juvenile yellow perch. Indices of relative abundance are presented as Geometric Mean Catch per Haul. The Geometric Mean (GM) has been adopted by the Atlantic States Marine Fisheries Commission as the preferred index of relative abundance. The GM is a statistical way of handling the data that is more precise than the Arithmetic Mean Catch per Haul because it is not as sensitive to a single large sample value. The Arithmetic Mean Catch per Haul (AM) is presented for striped bass because it is the most widely recognized and easily understood juvenile index. Also appearing in the data tables are: year, number of samples (n), and 95 % confidence intervals.

Use_Constraints:

None

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: ERIC DURELL

Contact_Position: TECHNICAL CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Maryland Department of Natural Resources

Address: Fisheries Service

Address: Tawes Building, B-2

Address: Taylor Avenue

City: Annapolis

State_or_Province: MD

Postal_Code: 21401

Country: USA

Contact_Electronic_Mail_Address: edurell@dnr.state.md.us

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Not Available

Logical_Consistency_Report:

Not Available

Completeness_Report:

Not Available

Lineage:

Process_Step:

Process_Description:

Not Available

Process_Date: Unknown

Spatial_Reference_Information:

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: MD/DNR/FISH > Fisheries Service, Department of Natural Resources, Maryland

Contact_Person: ERIC DURELL

Contact_Position: DATA CENTER CONTACT

Contact_Address:

Address_Type: Mailing and Physical Address

Address: Maryland Department of Natural Resources

Address: Fisheries Service

Address: Tawes Building, B-2

Address: Taylor Avenue

City: Annapolis

State_or_Province: MD

Postal_Code: 21401

Country: USA

Contact_Electronic_Mail_Address: edurell@dnr.state.md.us

Resource_Description: MDDNR_stripedbass

Distribution_Liability:

Not Available

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Not Available

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.dnr.state.md.us/fisheries/

Access_Instructions:

DATA CENTER URL

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http://www.dnr.state.md.us/fisheries/juvindex/

Access_Instructions:

Maryland Department of Natural Resources Striped Bass Seine Survey Juvenile Index Home Page.

Fees: Not Available

Metadata_Reference_Information:

Metadata_Date: 20030930

Metadata_Review_Date: 20121221

Metadata_Future_Review_Date: 20040930

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: TYLER B. STEVENS

Contact_Position: DIF AUTHOR

Contact_Address:

Address_Type: Mailing and Physical Address

Address: NASA Goddard Space Flight Center

Address: Global Change Master Directory

City: Greenbelt

State_or_Province: MD

Postal_Code: 20771

Country: USA

Contact_Voice_Telephone: (301) 614-6898

Contact_Facsimile_Telephone: 301-614-5268

Contact_Electronic_Mail_Address: Tyler.B.Stevens@nasa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time