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
abstract::The water quality of Songkla Lake for organochlorine (OC) pesticide contamination was studied from chosen sampling sites (stations) using the lakes geographic data and pollution sources. The water samples were collected monthly from 13 stations in Songkla Lake during September 1991-November 1992. The OC pesticide resi...
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
abstract::Two and a half years of data of ambient concentrations of elemental mercury (Hg(0)), reactive gaseous mercury (RGM), and particle-bound mercury (Hg(p)) were collected at measurement sites at Elizabeth, New Jersey and New Brunswick, New Jersey with Tekran sampling units. The data were processed, summarized, and analyze...
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
abstract::The present investigation reports the assessment of hydrochemical/geochemical processes controlling the concentration of fluoride in groundwater of a village in India (Boden block, Orissa). Boden block is one of the severely affected fluoride-contaminated areas in the state of Orissa (India). The sampling and subseque...
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
abstract::Marble is a natural dimension stone that is widely used in building due to its resistance and esthetic qualities. Unfortunately, some concerns have arisen regarding its production process because quarrying and processing activities demand significant amounts of energy and greatly affect the environment. Further, perfo...
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
abstract::Many countries undertake a national forest inventory to enable statistically valid monitoring in support of national and international reporting of forest conditions and change. Canada's National Forest Inventory (NFI) program is designed to operate on a 10-year remeasurement cycle, with an interim report produced at ...
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
abstract::Coastal lagoons are ecologically and economically important environments but a relative low number of studies were carried out in subtropical and permanently closed coastal lagoons. The present study aimed at assessing the temporal and spatial dynamic of trophic relevant water quality parameters in the small, deep and...
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
abstract::This paper presents a comparison of pollutant load estimations for runoff from two geographically distinct residential suburban neighborhoods in northern and southern California. The two neighborhoods represent a single urban land use type: low-density residential in small catchments (<0.3 km2) under differing regiona...
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
abstract::Surface mining disturbances have attracted attention globally due to extensive influence on topography, land use, ecosystems, and human populations in mineral-rich regions. We analyzed a time series of Landsat satellite imagery to produce a 28-year disturbance history for surface coal mining in a segment of eastern US...
journal_title:Environmental monitoring and assessment
pub_type: 历史文章,杂志文章
doi:10.1007/s10661-015-4766-1
更新日期:2015-09-01 00:00:00
abstract::The acute salinity tolerance of three tropical freshwater cladoceran species, M. macleayi, C. rigaudii and D. brachyurum was determined. The existence of these species represented new records for Trinidad and Tobago, a tropical Caribbean island. It has a large oil based industry, in which, the primary effluent (saline...
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
abstract::In this study, a rapid, specific and sensitive multi-residue method based on acetonitrile extraction followed by dispersive solid-phase extraction (d-SPE) clean-up was implemented and validated for multi-class pesticide residues determination in palm oil for the first time. Liquid-liquid extraction followed by low-tem...
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
abstract::Chemical measurements often constitute the basis for informed decision-making at different levels in society; sound decision-making is possible only if the quality of the data used is uncompromised. To guarantee the reliability and comparability of analytical data an intricate system of quality-assurance measures has ...
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
abstract::Single-pass electrofishing was used to define the most efficient sampling distance to assess stream condition using the index of biotic integrity (IBI) methodology in headwater (<36 km(2) drainage area), warmwater streams in the Eastern Corn Belt Plain ecoregion. Based on wetted widths (1-3.3 m) of sampled reaches, we...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-014-3872-9
更新日期:2014-10-01 00:00:00
abstract::Jordan relies heavily on reservoirs building and development to cope with water supply challenges, where monitoring and assessment of reservoir water quality are critically important for the sustainable use of these water supplies. Mujib Dam is an important water supply source in central western Jordan. Evaluation of ...
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
abstract::A study was conducted in central Texas to determine the potential of using remote sensing technology to distinguish Ashe juniper (Juniperus ashei Buchholz) infestations on rangelands. Plant canopy reflectance measurements showed that Ashe juniper had lower near-infrared reflectance than other associated woody plant sp...
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
abstract::The potential threat of heavy metals to human health has led to many studies on permissible levels of these elements in soils. The objective of this study was to establish quality reference values (QRVs) for Cd, Pb, Zn, Cu, Ni, Cr, Fe, Mn, As, Hg, V, Ba, Sb, Ag, Co, and Mo in soils of Cuba. Geochemical associations be...
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
abstract::Gomti river receives industrial as well as domestic wastes from various drains of Lucknow city. In the process the water and sediment of the river Gomti get contaminated with heavy metals and other pollutants. In the present study, impacts of domestic/industrial wastes on the water and sediment chemistry of river Gomt...
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
abstract::In recent years, the use of biochemical markers, especially in the assessment of toxic effects and modes of action, under controlled laboratory conditions has increased. However, transposing their use to in situ monitoring or risk assessment evaluations has encountered barriers, mainly related to the difficulty in int...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-015-4429-2
更新日期:2015-04-01 00:00:00
abstract::The concept of ecosystem conservation as a broad theme came into existence during the 1970s under the Man and Biosphere Programme (MAB) of the United Nations Educational, Scientific and Cultural Organization (UNESCO). The Indian Government followed this approach and chose the method to segregate the landscape for cons...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-008-0353-z
更新日期:2009-06-01 00:00:00
abstract::A combined approach consisting of monitoring and thermodynamic modeling was used in order to calculate the concentration of trace element species in water samples of a broad salinity range and to explain their chemical behaviour. The study was performed on water samples (fresh, marine, hyper-saline) taken from the are...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-010-1783-y
更新日期:2011-09-01 00:00:00
abstract::Mangrove sediments are strong modulators of organic matter (OM) content and pollutant dynamics, acting both as sinks and sources of these components. This study aimed to assess temporal dynamics of OM within temperate mangrove sediments and their ability to sequester pollutants. Specifically, levels of trace metals (F...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-019-7916-z
更新日期:2019-11-30 00:00:00
abstract::Inadequate knowledge of baseline conditions challenges ability for monitoring programs to detect pollution in rivers, especially where there are natural sources of contaminants. Here, we use paleolimnological data from a flood-prone lake ("SD2", informal name) in the Slave River Delta (SRD, Canada), ∼ 500 km downstrea...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-016-5277-4
更新日期:2016-05-01 00:00:00
abstract::Extraordinary geogenic concentrations of cadmium (Cd) have been reported for some Jamaican soils. However, the bioavailability of the metal in these soils remains unknown. Here, the bioavailability of Cd in selected Jamaican soils was investigated through the determination of total and sequentially extractable concent...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-014-3722-9
更新日期:2014-07-01 00:00:00
abstract::Obtaining information about the spatial distribution of desert plants is considered as a serious challenge for ecologists and environmental modeling due to the required intensive field work and infrastructures in harsh and remote arid environments. A new method was applied for assessing the spatial distribution of the...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-015-4403-z
更新日期:2015-05-01 00:00:00
abstract::Galvanized steel structures are used in a large variety of external constructions in the modern urban society, and their beneficial properties from a corrosion and oxidation perspective are well known. Less investigated is the extent of their contribution to the diffuse dispersion of zinc in the society and also to th...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-010-1377-8
更新日期:2011-02-01 00:00:00
abstract::The study of the effects of exogenous abscisic acid (ABA) addition on cadmium (Cd) accumulation of two ecotypes (mining and farmland) of Solanum photeinocarpum was operated through a pot experiment. The results showed that the biomass and chlorophyll content of the two ecotypes of S. photeinocarpum increased with incr...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-016-5194-6
更新日期:2016-03-01 00:00:00
abstract::Soils play a vital role in the quality of the urban environment and the health of its residents. City soils and street dusts accumulate various contaminants and particularly potentially toxic elements (PTEs) from a variety of human activities. This study investigates the current condition of elemental concentration in...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-018-7066-8
更新日期:2018-11-12 00:00:00
abstract::We compared the effects of natural and anthropogenic watershed disturbances on methyl mercury (MeHg) concentration in bulk zooplankton from boreal Shield lakes. MeHg in zooplankton was monitored for three years in nine lakes impacted by deforestation, in nine lakes impacted by wildfire, and in twenty lakes with undist...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-006-9442-z
更新日期:2007-08-01 00:00:00
abstract::The US Forest Service's Forest Inventory and Analysis (FIA) program collects information on trees in areas that meet its definition of forest. However, the inventory excludes trees in areas that do not meet this definition, such as those found in urban areas, in isolated patches, in areas with sparse or predominantly ...
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