Abstract：
:Coral colony size-frequency distribution data offer valuable information about the ecological status of coral reefs. Such data are usually collected by divers in situ, but stereo video is being increasingly used for monitoring benthic marine communities and may be used to collect size information for coral colonies. This study compared the size-frequency distributions of coral colonies obtained by divers measuring colonies 'in situ' with digital video imagery collected using stereo video and later processed using computer software. The size-frequency distributions of the two methods were similar for corymbose colonies, although distributions were different for massive, branching and all colonies combined. The differences are mainly driven by greater abundance of colonies >50 cm and fewer colonies <10 cm recorded when using the in situ method. The stereo video method detected 93% of marked colonies >5 cm and was able to record measurements on 87% of the colonies detected. However, stereo video only detected 57% of marked colonies <5 cm, suggesting that this method may be unsuitable for assessing abundance of coral recruits. Estimates of colony size made with the stereo video were smaller than the in situ technique for all growth forms, particularly for massive morphologies. Despite differences in size distributions, community assessments, which incorporated genera, growth forms and size, were similar between the two techniques. Stereo video is suitable for monitoring coral community demographics and provided data similar to in situ measure for corymbose corals, but the ability to accurately measure massive and branching coral morphologies appeared to decline with increasing colony size.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Turner JA,Polunin NV,Field SN,Wilson SKdoi
10.1007/s10661-015-4431-8subject
Has Abstractpub_date
2015-05-01 00:00:00pages
234issue
5eissn
0167-6369issn
1573-2959journal_volume
187pub_type
杂志文章abstract：:These days, wildfires are prevalent in almost all areas of the world. Researchers have been actively analyzing wildfire damage using a variety of satellite images and geospatial datasets. This paper presents a method for detailed estimation of wildfire losses using various geospatial datasets and an actual case of wil...
journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-007-9992-8
更新日期：2008-09-01 00:00:00
abstract：:Biomonitoring with mosses is a common method widely used to assess the spatial and temporal trends of atmospheric deposition in Europe since its introduction in the 1970s. Based on previous investigations, certain moss species provide the most accurate reflection of atmospheric deposition. However, sampling of just on...
journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-019-7354-y
更新日期：2019-03-15 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/BF00546660
更新日期：1994-10-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-008-0583-0
更新日期：2009-11-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-011-2188-2
更新日期：2012-05-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-017-5825-6
更新日期：2017-03-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-009-1243-8
更新日期：2010-11-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-010-1833-5
更新日期：2011-10-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-017-6104-2
更新日期：2017-08-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 历史文章,杂志文章
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更新日期：2015-09-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-006-9281-y
更新日期：2007-04-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-011-2384-0
更新日期：2012-09-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-008-0493-1
更新日期：2009-09-01 00:00:00
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journal_title：Environmental monitoring and assessment
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doi：10.1007/s10661-014-3872-9
更新日期：2014-10-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-018-6976-9
更新日期：2018-09-22 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-006-9407-2
更新日期：2007-07-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-014-4198-3
更新日期：2015-01-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-005-6395-6
更新日期：2005-03-01 00:00:00
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journal_title：Environmental monitoring and assessment
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doi：10.1007/s10661-015-4429-2
更新日期：2015-04-01 00:00:00
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journal_title：Environmental monitoring and assessment
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更新日期：2016-05-01 00:00:00
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更新日期：2014-07-01 00:00:00
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更新日期：2015-05-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
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更新日期：2011-02-01 00:00:00
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更新日期：2018-11-12 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
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更新日期：2007-08-01 00:00:00
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journal_title：Environmental monitoring and assessment
pub_type： 杂志文章
doi：10.1007/s10661-011-2131-6
更新日期：2012-04-01 00:00:00
