Diet of scalloped hammerhead shark in eastern Gulf of Mexico
Data Set (DS) | Southeast Fisheries Science Center (SEFSC)GUID: gov.noaa.nmfs.inport:24913 | Updated: October 3, 2024 | Published / External
Item Identification
| Title: | Diet of scalloped hammerhead shark in eastern Gulf of Mexico |
|---|---|
| Status: | Completed |
| Creation Date: | 1998 |
| Revision Date: | 2017 |
| Publication Date: | 2017 |
| Abstract: |
Juvenile scalloped hammerhead sharks, Sphyrna lewini, were collected in northwest Florida to examine foraging ecology, bioenergetics, and trophic level (30-60 cm FL mean FL 41.5 cm n 196). Diet analysis was performed using single and compound measures of prey quantity. Diet was also analyzed using seven broad diet categories (DC). Diet composition and estimated daily ration were compared to previously published information on bonnethead sharks, S. tiburo. Diet overlap was low between species. Juvenile S. lewini feed on relatively small (85 of prey items 5 shark length) teleosts (mostly bothids and sciaenids) and shrimps, whereas S. tiburo have been documented to feed mostly on crustaceans and plant material in northwest Florida. Plant material contributed little to the diet of S. lewini. Estimated daily ration was significantly lower for S. lewini (4.6 BW d-1) than for S. tiburo in northwest Florida, regardless if plant material was included in the model (p0.02 including and p0.00001 excluding plant material). Trophic level was calculated at 4.0 for S. lewini and 2.6 for S. tiburo. Stable isotope analysis showed S. lewini had significantly higher 15N values and significantly lower 13C values than S. tiburo, supporting the difference observed in calculated trophic level. These results provide evidence that small juvenile hammerhead species co-exist in coastal northwest Florida by feeding at separate trophic levels. |
| Purpose: |
To (1) quantify the diet and foraging ecology of juvenile S. lewini in northwest Florida, (2) model consumption rates using a bioenergetics approach, and (3) compare our findings to previously published diet and bioenergetics data for juvenile S. tiburo from the same area (Bethea et al. 2007) in an attempt to understand resource partitioning. |
Keywords
Theme Keywords
| Thesaurus | Keyword |
|---|---|
| Global Change Master Directory (GCMD) Data Center Keywords |
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
|
| Global Change Master Directory (GCMD) Data Center Keywords |
DOC/NOAA/NMFS/SEFSC > Southeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce
|
| Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > BIOLOGICAL CLASSIFICATION
|
| Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > BATHYMETRY/SEAFLOOR TOPOGRAPHY > WATER DEPTH
|
| Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
|
| World Register of Marine Species (WoRMS) |
Sphyrna lewini
|
| UNCONTROLLED | |
| NCEI ACCESSION NUMBER | 0163192 |
| NCEI ACCESSION NUMBER | 163192 |
| NODC COLLECTING INSTITUTION NAMES | US DOC; NOAA; NMFS; Southeast Fisheries Science Center; Panama City, FL Laboratory |
| NODC DATA TYPES THESAURUS | ANIMALS - INDIVIDUAL - STOMACH CONTENTS |
| NODC DATA TYPES THESAURUS | BIOLOGICAL DATA |
| NODC DATA TYPES THESAURUS | STOMACH CONTENTS - PREY |
| NODC DATA TYPES THESAURUS | STOMACH CONTENTS - PREY COUNT |
| NODC DATA TYPES THESAURUS | STOMACH CONTENTS STOMACH CONTENTS - CONTENT WEIGHT |
| NODC DATA TYPES THESAURUS | TAXONOMY |
| NODC DATA TYPES THESAURUS | water depth |
| NODC DATA TYPES THESAURUS | WATER TEMPERATURE |
| NODC SUBMITTING INSTITUTION NAMES | US DOC; NOAA; NMFS; Southeast Fisheries Science Center |
| None | diet |
| None | fishery-dependent |
| None | foraging ecology |
| None | resource partitioning |
| None | S. lewini |
| None | S. tiburo |
| None | scalloped hammerhead sharks |
Temporal Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| None | 1998-2005 |
Spatial Keywords
| Thesaurus | Keyword |
|---|---|
| Global Change Master Directory (GCMD) Location Keywords |
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
|
| UNCONTROLLED | |
| NODC SEA AREA NAMES | Coastal Waters Of Florida |
| NODC SEA AREA NAMES | gulf of mexico |
| None | Crooked Island Sound |
| None | St. Vincent Island |
Instrument Keywords
| Thesaurus | Keyword |
|---|---|
| UNCONTROLLED | |
| NODC INSTRUMENT TYPES | scale |
| NODC INSTRUMENT TYPES | YSI - handheld multi-parameter instrument |
Physical Location
| Organization: | National Centers for Environmental Information - Silver Spring, Maryland |
|---|---|
| City: | Silver Spring |
| State/Province: | MD |
Data Set Information
| Data Set Scope Code: | Data Set |
|---|---|
| Data Set Type: | Database |
| Maintenance Frequency: | None Planned |
| Data Presentation Form: | Table (digital) |
Support Roles
Co-Author
| Date Effective From: | 2005 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Bethea, Dana M |
| Address: |
263 13th Avenue South St Petersberg, FL 33701 |
| Email Address: | Dana.Bethea@noaa.gov |
Data Steward
| Date Effective From: | 2016 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Carlson, John |
| Address: |
3500 Delwood Beach Road Panama City, FL 32408 |
| Email Address: | John.Carlson@noaa.gov |
| Phone: | 850-234-6541 x221 |
| Fax: | 850-235-3559 |
Distributor
| Date Effective From: | 2017 |
|---|---|
| Date Effective To: | |
| Contact (Organization): | NOAA National Centers for Environmental Information (NCEI) |
| Email Address: | ncei.info@noaa.gov |
| URL: | NCEI Contact Information |
Metadata Contact
| Date Effective From: | 1998 |
|---|---|
| Date Effective To: | |
| Contact (Person): | Carlson, John |
| Address: |
3500 Delwood Beach Road Panama City, FL 32408 |
| Email Address: | John.Carlson@noaa.gov |
| Phone: | 850-234-6541 x221 |
| Fax: | 850-235-3559 |
Publisher
| Date Effective From: | 2017 |
|---|---|
| Date Effective To: | |
| Contact (Organization): | Southeast Fisheries Science Center (SEFSC) |
| Address: |
75 Virginia Beach Drive Miami, FL 33149 USA |
| Phone: | (305)361-5761 |
| URL: | https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center |
| Business Hours: | 8:00 a.m. - 4:30 p.m. EST |
Extents
| Currentness Reference: | Ground Condition |
|---|
Extent Group 1
Extent Group 1 / Geographic Area 1
| W° Bound: | -85.887 | |
|---|---|---|
| E° Bound: | -85.087 | |
| N° Bound: | 30.275 | |
| S° Bound: | 29.652 | |
| Description |
Localized Sampling Area |
|
Extent Group 1 / Time Frame 1
| Time Frame Type: | Range |
|---|---|
| Start: | 1998 |
| End: | 2005 |
Access Information
| Security Class: | Unclassified |
|---|---|
| Data Access Policy: |
Open to everyone |
| Data Access Procedure: |
Download Data fom provided links |
| Data Access Constraints: |
None |
| Data Use Constraints: |
Please cite appropriately. |
| Metadata Access Constraints: |
none |
Distribution Information
Distribution 1
| Start Date: | 2017 |
|---|---|
| End Date: | Present |
| Download URL: | https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/accession/download/163192 |
| Distributor: | NOAA National Centers for Environmental Information (NCEI) (2017 - Present) |
| File Name: | 163192.1.1.tar.gz |
| File Type (Deprecated): | NCEI Archived Data Accession |
| File Size: | ~ 0.512 MB |
| Compression: | GZ / GZIP |
| Review Status: | Chked Viruses Inapp Content |
URLs
URL 1
| URL: | https://www.ncei.noaa.gov/archive/accession/0163192 |
|---|---|
| Name: | Landing Page NCEI Accession 0163192 |
| URL Type: |
Online Resource
|
| File Resource Format: | html |
Data Quality
| Analytical Accuracy: |
Analytical error associated with foraging ecology measurements was typically = 0.2‰. |
|---|---|
| Quantitation Limits: |
Items found in the stomachs were measured for length (to nearest cm), and weighed (wet weight, to nearest 0.001 g) |
| Quality Control Procedures Employed: |
n/a |
Data Management
| Have Resources for Management of these Data Been Identified?: | No |
|---|---|
| Approximate Percentage of Budget for these Data Devoted to Data Management: | 0 |
| Do these Data Comply with the Data Access Directive?: | Yes |
| Is Access to the Data Limited Based on an Approved Waiver?: | No |
| If Distributor (Data Hosting Service) is Needed, Please Indicate: | No |
| Approximate Delay Between Data Collection and Dissemination: | 365 |
| If Delay is Longer than Latency of Automated Processing, Indicate Under What Authority Data Access is Delayed: |
N/A |
| Actual or Planned Long-Term Data Archive Location: | World Data Center (WDC) Facility |
| Approximate Delay Between Data Collection and Archiving: | 365 |
| How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?: |
The data resides on a secure government network requiring multi-factor authentication for network access. |
Lineage
Process Steps
Process Step 1
| Description: |
Data was entered into the database by hand. |
|---|---|
| Process Contact: | Carlson, John |
| Phone (Voice): | 850-234-6541 x221 |
| Email Address: | John.Carlson@noaa.gov |
Child Items
Rubric scores updated every 15m
| Type | Title |
|---|---|
| Document | A Comparison of the Foraging Ecology and Bioenergetics of the Early Life-Stages of Two Sympatric Hammerhead Sharks |
| Document | Original Dataset 24913 Metatada xml |
| Entity | diet_category_descriptions.csv |
| Entity | location_areas.csv |
| Entity | maturity_codes.csv |
| Entity | schd_bio_data.csv |
| Entity | schd_bio_data_Metadata.csv |
| Entity | schd_diet.csv |
| Entity | schd_diet_Metadata.csv |
Catalog Details
| Catalog Item ID: | 24913 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:24913 |
| Metadata Record Created By: | Emily Harrell |
| Metadata Record Created: | 2015-05-05 10:49+0000 |
| Metadata Record Last Modified By: | SysAdmin InPortAdmin |
| Metadata Record Last Modified: | 2024-10-03 18:16+0000 |
| Metadata Record Published: | 2022-05-31 |
| Owner Org: | SEFSC |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2022-05-31 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2023-05-31 |