Author: MGEL TECH
Keywords: Occurrence,Vessels,Sightings,Bottlenose dolphin,mark-recapture,photo-ID,community structure,abundance, Observation, Occurrence

Community structure and abundance of bottlenose dolphins Tursiops truncatus in coastal waters of the northeast Gulf of Mexico

Reny Tyson^1, OBIS-SEAMAP^2

1 Sarasota Dolphin Research Program, ; 2 Marine Geospatial Ecology Lab, Duke University, A328 LSRC building, 27708, Durham, United States

Corresponding author(s): Reny Tyson (rtysonmoore@mote.org), OBIS-SEAMAP (seamap-contact@duke.edu)

Received {date}; Revised {date}; Accepted {date}; Published {date}

Citation: Combination of authors, year of data paper publication (in parentheses), Title, Journal Name, Volume, Issue number (in parentheses), and doi of the data paper.

Resource Citation

Tyson, R. 2014. Community structure and abundance of bottlenose dolphins Tursiops truncatus in coastal waters of the northeast Gulf of Mexico. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/571) on yyyy-mm-dd. https://seamap.env.duke.edu/dataset/571

Abstract

Original provider:
Reny Tyson, Duke University, and Brian Balmer, Chicago Zoological Society, c/o Mote Marine Laboratory

Dataset credits:
Reny Tyson, Duke University
Brian Balmer, Chicago Zoological Society, c/o Mote Marine Laboratory

Abstract:
We examined bottlenose dolphin <i>Tursiops truncatus</i> community structure and abundance in the northeast Gulf of Mexico coastal waters stretching from St. Vincent Sound to Alligator Harbor, Florida, USA. Photographic-identification surveys were conducted between May 2004 and October 2006 to gain an  understanding of dolphin distribution in this region. Dolphins were distributed year-round throughout the region; however, individual sighting records indicate that 2 parapatric dolphin communities exist. We conducted mark-recapture surveys using photographic-identification techniques to estimate the abundance of dolphins inhabiting the 2 areas these communities reside in: St. Vincent Sound/Apalachicola Bay, western; and St. George Sound/Alligator Harbor, eastern. Sighting records of individual dolphins from 2004 to 2008 support the existence of 2 communities in these areas; only 3.5% of distinctive dolphins photographed were seen in both western and eastern areas. The 2 communities differ in their structure: the eastern area supports a more transient population with 45.7% of distinctive dolphins photo graphed only once compared with 28.3% in the west. Independent estimates of abundance (N, 95% CI = [low, high]) were calculated using the Chapman modification of the Lincoln-Petersen method for June 2007 and for January and February 2008 for the eastern area (242 [141−343], 395 [273−516]) and for the western survey area (197 [130−264], 111 [71−150]), respectively. Our results serve as a baseline that can be used by the US National Marine Fisheries Service to manage bottlenose dolphins in this region.

Purpose:
not provided

Supplemental information:
[2015-03-24] A few records had a wrong animal count of zero. The value is replaced with a blank representing species presence only.

Keywords: Occurrence,Vessels,Sightings,Bottlenose dolphin,mark-recapture,photo-ID,community structure,abundance, Observation, Occurrence

General description

Purpose: not provided
Additional information: marine, harvested by iOBIS

Project details

Project title: Community structure and abundance of bottlenose dolphins Tursiops truncatus in coastal waters of the northeast Gulf of Mexico
Personnel: Reny Tyson
Funding: NA

Data published through GBIF: http://ipt.env.duke.edu/resource?r=zd_571

Taxonomic coverage

General taxonomic coverage description: Scientific names are based on the Integrated Taxonomic Information System (ITIS).
Taxonomic ranks
Species: Tursiops truncatus
Common names: Common Bottlenose Dolphin

Spatial coverage

General spatial coverage: Gulf of Mexico,Apalachicola Bay,St. George Sound,Alligator Harbor
Coordinates: 29°36'10.8''N and 30°13'55.2''N Latitude; 85°55'8.4''W and 84°20'2.4''W Longitude 

Temporal coverage: April 27, 2004 - February 4, 2008

Natural collections description

Parent collection identifier: OBIS-SEAMAP
Collection name: zd_571
Collection identifier: zd_571

Methods

Method step description: NA
Study extent description: NA
Sampling description: NA

Datasets

Dataset description
Object name: Darwin Core Archive Community structure and abundance of bottlenose dolphins Tursiops truncatus in coastal waters of the northeast Gulf of Mexico
Character encoding: UTF-8
Format name: Darwin Core Archive format
Format version: 1.0
Distribution: http://ipt.env.duke.edu/archive.do?r=zd_571
Publication date of data: 2021-04-24
Language: English
Licences of use: Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License

External datasets

Dataset description
Object name: OBIS-SEAMAP Dataset Page
Character encoding: UTF-8
Format name: Interactive map
Distribution: http://seamap.env.duke.edu/dataset/571

Dataset description
Object name: FGDC Metadata
Character encoding: UTF-8
Format name: XML
Distribution: http://seamap.env.duke.edu/dataset/571/xml

Metadata language: English
Date of metadata creation: 2014-06-17
Hierarchy level: Dataset