Geographic and ontogenetic variation in the diet and daily of the bonnethead shark, sphyrna tiburo in eastern Gulf of Mexico
Southeast Fisheries Science Center
Document
(DOC)
| ID: 46157
| Published / External
Created: 2017-06-02
|
Last Modified: 2022-08-09
Data Set (DS) | ID: 24912
ID: 46157
Document (DOC)
* Discovery• First Pass
» Metadata Rubric
Item Identification
* » Title | Geographic and ontogenetic variation in the diet and daily of the bonnethead shark, sphyrna tiburo in eastern Gulf of Mexico |
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Short Name | |
* Status | Completed |
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• Publication Date | 2007-05-04 |
* » Abstract |
To examine variation in diet and daily ration of the bonnethead, Sphyrna tiburo (Linnaeus, 1758), sharks were collected from three areas in the eastern Gulf of Mexico: northwest Florida (29o40N, 85o13W), Anclote Key near Tampa Bay (28o10N, 82o42.5W), and Florida Bay (24o50N, 80o48W) from March through September, 1998-2000. In each area, diet was assessed by life stage (young-of-the year, juveniles, and adults) and quantified using five indices: percent by number (N), percent by weight (W), frequency of occurrence (O), index of relative importance expressed on a percent basis (IRI), and IRI based on diet category (IRIDC). Diet could not be assessed for young-of-the-year in Tampa Bay or Florida Bay owing to low sample size. Diet analysis showed an ontogenetic shift in northwest Florida. Young-of-the-year stomachs from northwest Florida (n68, 1 empty) contained a mix of seagrass and crustaceans while juvenile stomachs (n82, 0 empty) contained a mix of crabs and seagrass and adult stomachs (n39, 1 empty) contained almost exclusively crabs. Crabs made up the majority of both juvenile and adult diet in Tampa Bay (n79, 2 empty, and n88, 1 empty, respectively). Juvenile stomachs from Florida Bay (n72, 0 empty) contained seagrass and a mix of crustaceans while adult stomachs contained more shrimp and cephalopods (n82, 3 empty). Diets in northwest Florida and Tampa Bay were similar. The diet in Florida Bay was different from those in the other two areas, consisting of fewer crabs and more cephalopods and lobsters. Plant material was found in large quantities in all stomachs examined from all locations (15 IRIDC in 6 of the 7 life stage-area combinations, 30 IRIDC in 4 of the 7 combinations, and 62 IRIDC in young-of-the-year diet in northwest Florida). Using species- and area-specific inputs, a bioenergetic model was constructed to estimate daily ration. Models were constructed under two scenarios: assuming plant material was and was not part of the diet. Overall, daily ration was significantly different by sex, life stage, and region. The bioenergetic model predicted increasing daily ration with decreasing latitude and decreasing daily ration with ontogeny regardless of the inclusion or exclusion of plant material. These results provide evidence that bonnetheads continuously exposed to warmer temperatures have elevated metabolism and require additional energy consumption to maintain growth and reproduction. |
* Purpose |
To (1) describe and quantify the diet and feeding ecology of bonnetheads by life stage and area (following Lombardi-Carlson et al. 2003), and (2) model consumption using a bioenergetic approach for life stages and sexes from each area, examining the sensitivity of the model to input parameters. |
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Other Citation Details |
Bethea, D.M., Hale, L., Carlson, J.K. et al. Mar Biol (2007) 152: 1009. doi:10.1007/s00227-007-0728-7 |
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Keywords
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None | Anclote Key |
None | bonnethead |
None | diet |
None | Florida Bay |
None | Tampa Bay |
None | young-of-the-year |
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None | Gulf of Mexico |
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Document Type | Journal article |
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Format | Acrobat Portable Document Format |
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Status Code | Published |
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* » Support Role | Author |
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* » Date Effective From | 2007 |
Date Effective To | 2016 |
Person | Bethea, Dana M |
Address |
263 13th Avenue South St Petersberg, FL 33701 |
Email Address | Dana.Bethea@noaa.gov |
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Has gotten a position with a different NMFS organization |
* » Support Role | Co-Author |
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* » Date Effective From | 2007 |
Date Effective To | 2015 |
Person | Hale, Loraine |
Address |
3500 Delwood Beach Road Panama City, FL 32408 |
Email Address | Loraine.Hale@noaa.gov |
Phone | 850-234-6541 |
Fax | 850.235.3559 |
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* » Support Role | Co-Author |
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* » Date Effective From | 2007 |
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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 |
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Contact by email preferred. |
* » Support Role | Data Steward |
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* » Date Effective From | 2016 |
Date Effective To | |
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 |
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* » Support Role | Distributor |
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* » Date Effective From | 2007 |
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Organization | Southeast Fisheries Science Center (SEFSC) |
Address |
75 Virginia Beach Drive Miami, FL 33149 USA |
Email Address | |
Phone | (305)361-5761 |
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URL | https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center |
Business Hours | 8:00 a.m. - 4:30 p.m. EST |
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* » Support Role | Metadata Contact |
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* » Date Effective From | 2016 |
Date Effective To | |
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 |
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URL | https://link.springer.com/article/10.1007/s00227-007-0728-7 |
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URL Type | Online Resource |
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Landing Page For Journal Article |
URL | https://www.researchgate.net/profile/Dana_Bethea/publication/226288832_Geographic_and_ontogenetic_variation_in_the_diet_and_daily_ration_of_the_bonnethead_shark_Sphyrna_tiburo_from_the_eastern_Gulf_of_Mexico/links/00b7d51d2de06b0033000000/Geographic-and-ontogenetic-variation-in-the-diet-and-daily-ration-of-the-bonnethead-shark-Sphyrna-tiburo-from-the-eastern-Gulf-of-Mexico.pdf |
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Download Page From Dana Bethea's publications on Researchgate |
URL | https://www.ncddc.noaa.gov/approved_recs/ecowatch/game/GAME_2563.xml |
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.xml file of metdata for article from the National Coastal Data Development Center of NOAA |
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Catalog Details
Catalog Item ID | 46157 |
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Metadata Record Created By | Lee M Weinberger |
Metadata Record Created | 2017-06-02 00:21+0000 |
Metadata Record Last Modified By | SysAdmin InPortAdmin |
» Metadata Record Last Modified | 2022-08-09 17:11+0000 |
Metadata Record Published | 2022-05-31 |
Owner Org | SEFSC |
Metadata Publication Status | Published Externally |
Do Not Publish? | N |
Metadata Workflow State | Published / External |
Metadata Last Review Date | 2022-05-31 |
Metadata Review Frequency | 1 Year |
Metadata Next Review Date | 2023-05-31 |
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