Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina.
Spawning site selection by red drum within the Neuse River Estuary (NRE) was studied by locating vocalizing aggregations using traditional hydrophone surveys (involving deploying gear from a research vessel stationed over a sampling site) and submersible, autonomous sonobuoys. Sonobuoys allowed inte...
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ftncstateu:oai:repository.lib.ncsu.edu:1840.16/2387 2023-07-23T04:21:33+02:00 Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina. Barrios, Anna Teresita Peter S. Rand, Committee Chair David B. Eggleston, Committee Member Adam S. Frankel, Committee Member Thomas Wolcott, Committee Member Tony F. Clark, Committee Co-Chair Stacy A.C. Nelson, Committee Member 2004-08-02 http://www.lib.ncsu.edu/resolver/1840.16/2387 unknown etd-07302004-165605 http://www.lib.ncsu.edu/resolver/1840.16/2387 I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. passive acoustic monitoring Sciaenops ocellatus red drum courtship vocalization drumming spawning 2004 ftncstateu 2023-07-03T21:40:05Z Spawning site selection by red drum within the Neuse River Estuary (NRE) was studied by locating vocalizing aggregations using traditional hydrophone surveys (involving deploying gear from a research vessel stationed over a sampling site) and submersible, autonomous sonobuoys. Sonobuoys allowed interval recording over multiple stations during a given night, and reduced the likelihood that boat noise would interfere with courtship and spawning behavior. The field season extended from 8 July to 30 September 2003. Sampling sites were selected at random, with replacement, from four possible categories: shallow—soft bottom (sandy, < 3 m), medium—soft bottom (transitional sand to mud, 3-5 m), deep-soft bottom (primarily mud, > 5 m), and deep-hard bottom (oyster reef or shell, > 5 m). Synoptic egg sampling at a subset of acoustic sampling sites confirmed a statistically significant relationship between probability of detecting vocalizing red drum and Sciaenid-type egg presence. On 30 dates between July and September 2003, vocalizing males were detected 43 (of 72) times with sonobuoys (multiple observations per site) and 35 (of 88) times while spot sampling (one observation per site). Most vocalizations (85 %) were observed at sites with water depths greater than 5 m, and 97 % occurred in August and September. Vocalization activity was most prevalent between 8 August and 17 September 2003, with the majority of vocalizations detected during a four hour period beginning at sunset.Highest vocalization activity varied between 1 and 3 hours after sunset with the average occurring 1 ½ hours after sunset over hard substrate sites, and 2 hours after sunset over soft substrate sites. I concluded that spawning aggregations were relatively spatially stationary once vocalizations began based on a high degree of vocalization persistence, and no significant shift in time of highest vocalization activity within the study area that would imply net movement of the aggregation over a given night's sampling period. Given the ... Other/Unknown Material Red drum Sciaenops ocellatus North Carolina State University Libraries (NCSU): Digital Repository |
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Open Polar |
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North Carolina State University Libraries (NCSU): Digital Repository |
op_collection_id |
ftncstateu |
language |
unknown |
topic |
passive acoustic monitoring Sciaenops ocellatus red drum courtship vocalization drumming spawning |
spellingShingle |
passive acoustic monitoring Sciaenops ocellatus red drum courtship vocalization drumming spawning Barrios, Anna Teresita Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina. |
topic_facet |
passive acoustic monitoring Sciaenops ocellatus red drum courtship vocalization drumming spawning |
description |
Spawning site selection by red drum within the Neuse River Estuary (NRE) was studied by locating vocalizing aggregations using traditional hydrophone surveys (involving deploying gear from a research vessel stationed over a sampling site) and submersible, autonomous sonobuoys. Sonobuoys allowed interval recording over multiple stations during a given night, and reduced the likelihood that boat noise would interfere with courtship and spawning behavior. The field season extended from 8 July to 30 September 2003. Sampling sites were selected at random, with replacement, from four possible categories: shallow—soft bottom (sandy, < 3 m), medium—soft bottom (transitional sand to mud, 3-5 m), deep-soft bottom (primarily mud, > 5 m), and deep-hard bottom (oyster reef or shell, > 5 m). Synoptic egg sampling at a subset of acoustic sampling sites confirmed a statistically significant relationship between probability of detecting vocalizing red drum and Sciaenid-type egg presence. On 30 dates between July and September 2003, vocalizing males were detected 43 (of 72) times with sonobuoys (multiple observations per site) and 35 (of 88) times while spot sampling (one observation per site). Most vocalizations (85 %) were observed at sites with water depths greater than 5 m, and 97 % occurred in August and September. Vocalization activity was most prevalent between 8 August and 17 September 2003, with the majority of vocalizations detected during a four hour period beginning at sunset.Highest vocalization activity varied between 1 and 3 hours after sunset with the average occurring 1 ½ hours after sunset over hard substrate sites, and 2 hours after sunset over soft substrate sites. I concluded that spawning aggregations were relatively spatially stationary once vocalizations began based on a high degree of vocalization persistence, and no significant shift in time of highest vocalization activity within the study area that would imply net movement of the aggregation over a given night's sampling period. Given the ... |
author2 |
Peter S. Rand, Committee Chair David B. Eggleston, Committee Member Adam S. Frankel, Committee Member Thomas Wolcott, Committee Member Tony F. Clark, Committee Co-Chair Stacy A.C. Nelson, Committee Member |
author |
Barrios, Anna Teresita |
author_facet |
Barrios, Anna Teresita |
author_sort |
Barrios, Anna Teresita |
title |
Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina. |
title_short |
Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina. |
title_full |
Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina. |
title_fullStr |
Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina. |
title_full_unstemmed |
Use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, Sciaenops ocellatus, in the Neuse River Estuary, North Carolina. |
title_sort |
use of passive acoustic monitoring to resolve spatial and temporal patterns of spawning activity for red drum, sciaenops ocellatus, in the neuse river estuary, north carolina. |
publishDate |
2004 |
url |
http://www.lib.ncsu.edu/resolver/1840.16/2387 |
genre |
Red drum Sciaenops ocellatus |
genre_facet |
Red drum Sciaenops ocellatus |
op_relation |
etd-07302004-165605 http://www.lib.ncsu.edu/resolver/1840.16/2387 |
op_rights |
I hereby certify that, if appropriate, I have obtained and attached hereto a written permission statement from the owner(s) of each third party copyrighted matter to be included in my thesis, dissertation, or project report, allowing distribution as specified below. I certify that the version I submitted is the same as that approved by my advisory committee. I hereby grant to NC State University or its agents the non-exclusive license to archive and make accessible, under the conditions specified below, my thesis, dissertation, or project report in whole or in part in all forms of media, now or hereafter known. I retain all other ownership rights to the copyright of the thesis, dissertation or project report. I also retain the right to use in future works (such as articles or books) all or part of this thesis, dissertation, or project report. |
_version_ |
1772187286522298368 |