Abundance of cetatceans in the southern U.S. North Atlantic Ocean during summer 1998
Document (DOC) | Southeast Fisheries Science Center (SEFSC)GUID: gov.noaa.nmfs.inport:26134 | Updated: August 9, 2022 | Published / External
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Summary
The U.S. Marine Mammal Protection Act requires that the abundance of marine mammals in U.S. waters be assessed. Because this requirement had not been met for a large portion of the North Atlantic Ocean (U.S. waters south of Maryland), a ship-based, line-transect survey was conducted with a 68 m research ship between Maryland (38.00°N) and central Florida (28.00°N) from the 10-m isobath to the boundary of the U.S. Exclusive Economic Zone. The study area (573,000 km 2) was surveyed between 8 July and 17 August 1998. Minimum abundance estimates were based on 4163 km of effort and 217 sightings of at least 13 cetacean species and other taxonomic categories. The most commonly sighted species (number of groups) were bottlenose dolphins, Tursiops truncatus (38); sperm whales, Physeter macrocephalus (29); Atlantic spotted dolphins, Stenella frontalis (28); and Risso’s dolphins, Grampus griseus (22). The most abundant species (abundance; coefficient of variation) were Atlantic spotted dolphins (14,438; 0.63); bottlenose dolphins (13,085; 0.40); pantropical spotted dolphins, S. attenuata (12,747; 0.56); striped dolphins, S. coeruleoalba (10,225; 0.91); and Risso’s dolphins (9533; 0.50). The abundance estimate for the Clymene dolphin, S. clymene (6086; 0.93), is the fi rst for the U.S. Atlantic Ocean. Sperm whales were the most abundant large whale (1181; 0.51). Abundances for other species or taxonomic categories ranged from 20 to 5109. There were an estimated 77,139 (0.23) cetaceans in the study area. Bottlenose dolphins and Atlantic spotted dolphins were encountered primarily in continental shelf (<200 m) and continental slope waters (200-2000 m). All other species were generally sighted in oceanic waters (>200 m). The distribution of some species varied north to south. Striped dolphins, Clymene dolphins, and sperm whales were sighted primarily in the northern part of the study area; whereas pantropical spotted dolphins were sighted primarily in the southern portion.
Document Information
Document Format
Acrobat Portable Document Format
Publication Date
2003-04-03
Contact Information
No contact information is available for this record.
Please contact the owner organization (SEFSC) for inquiries on this record.
Extents
1998-07-08 - 1998-08-17
This is when the sampling was done to collect the data used in this article
Item Identification
Title: | Abundance of cetatceans in the southern U.S. North Atlantic Ocean during summer 1998 |
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Status: | Completed |
Publication Date: | 2003-04-03 |
Abstract: |
The U.S. Marine Mammal Protection Act requires that the abundance of marine mammals in U.S. waters be assessed. Because this requirement had not been met for a large portion of the North Atlantic Ocean (U.S. waters south of Maryland), a ship-based, line-transect survey was conducted with a 68 m research ship between Maryland (38.00°N) and central Florida (28.00°N) from the 10-m isobath to the boundary of the U.S. Exclusive Economic Zone. The study area (573,000 km 2) was surveyed between 8 July and 17 August 1998. Minimum abundance estimates were based on 4163 km of effort and 217 sightings of at least 13 cetacean species and other taxonomic categories. The most commonly sighted species (number of groups) were bottlenose dolphins, Tursiops truncatus (38); sperm whales, Physeter macrocephalus (29); Atlantic spotted dolphins, Stenella frontalis (28); and Risso’s dolphins, Grampus griseus (22). The most abundant species (abundance; coefficient of variation) were Atlantic spotted dolphins (14,438; 0.63); bottlenose dolphins (13,085; 0.40); pantropical spotted dolphins, S. attenuata (12,747; 0.56); striped dolphins, S. coeruleoalba (10,225; 0.91); and Risso’s dolphins (9533; 0.50). The abundance estimate for the Clymene dolphin, S. clymene (6086; 0.93), is the fi rst for the U.S. Atlantic Ocean. Sperm whales were the most abundant large whale (1181; 0.51). Abundances for other species or taxonomic categories ranged from 20 to 5109. There were an estimated 77,139 (0.23) cetaceans in the study area. Bottlenose dolphins and Atlantic spotted dolphins were encountered primarily in continental shelf (<200 m) and continental slope waters (200-2000 m). All other species were generally sighted in oceanic waters (>200 m). The distribution of some species varied north to south. Striped dolphins, Clymene dolphins, and sperm whales were sighted primarily in the northern part of the study area; whereas pantropical spotted dolphins were sighted primarily in the southern portion. |
Other Citation Details: |
Mullin and Fulling. 2003. Abundance of cetaceans on the southern U.S. north atlantic ocean during summer 1998. Fish Bull 101:603-613 |
Keywords
Theme Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
None | Abundance |
None | Atlantic spotted dolphin |
None | Bottlenose dolphins |
None | cetatceans |
None | Clymene dolphin |
None | distribution |
None | Grampus griseus |
None | Risso’s dolphins |
None | S clymene |
None | S. coeruleoalba |
None | S. attenuata |
None | sperm whales |
None | striped dolphin |
Temporal Keywords
Thesaurus | Keyword |
---|---|
UNCONTROLLED | |
None | 1998 |
Spatial Keywords
Thesaurus | Keyword |
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UNCONTROLLED | |
None | Atlantic Ocean |
Document Information
Format: | Acrobat Portable Document Format |
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Status Code: | Published |
Support Roles
Author
Date Effective From: | 2003 |
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Date Effective To: | |
Contact (Person): | Mullin, Keith D |
Address: |
3209 Frederic St. Pascagoula, MS 39568 |
Email Address: | keith.d.mullin@noaa.gov |
Phone: | 228-549-1632 |
Fax: | 228-769-9200 |
Extents
Currentness Reference: | Ground Condition |
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Extent Group 1
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 1998-07-08 |
End: | 1998-08-17 |
Description: |
This is when the sampling was done to collect the data used in this article |
URLs
URL 1
URL: | https://spo.nmfs.noaa.gov/sites/default/files/pdf-content/2003/1013/mullin.pdf |
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URL Type: |
Online Resource
|
Description: |
This will display the journal article in .pdf format. |
Catalog Details
Catalog Item ID: | 26134 |
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GUID: | gov.noaa.nmfs.inport:26134 |
Metadata Record Created By: | Lee M Weinberger |
Metadata Record Created: | 2015-07-28 07:20+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2022-08-09 17:11+0000 |
Metadata Record Published: | 2021-04-29 |
Owner Org: | SEFSC |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2021-04-29 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2022-04-29 |