Abstract:
:Two boat-based and one in-water sampling method have been used to collect submerged aquatic vegetation (SAV) as part of a long-term monitoring program in Lake Okeechobee, Florida, USA. The boat-based methods consisted of collecting SAV with a ponar dredge, used only to collect Chara, and an oyster tongs-like rake apparatus, used to collect all SAV. The in-water method involved use of a 0.5 m2 PVC quadrat frame deployed by a diver. During summer 2002, SAV biomass samples were collected using all three methods at various sites in the lake to compare between-methods sampling precision. Sites used for these comparisons were selected based on plant type, plant density and sediment type. Statistical comparisons indicated that there were significant (p < or = 0.05) biomass differences in 8 of 15 possible pairwise comparisons between sampling method biomass means. In four of the eight comparisons, significantly higher biomass mean values were obtained using the quadrat frame. In three of the remaining four comparisons, significantly higher biomass mean values were obtained with the rake apparatus. For the fourth comparison, a significantly higher biomass mean value was obtained with the ponar dredge. Three of the four relationships between SAV biomass collected by the rake and the quadrat and the rake and the quadrat/ponar dredge were statistically significant, linear and explained between 67 and 78% of the biomass variability. There were no significant differences between regression coefficients or elevations for these relationships, therefore these regressions estimated the same population regression. The population regression coefficient was 0.95, suggesting that the quadrat and ponar over-sampled relative to the rake, but the amount of this over-sampling was very small. Since there was no consistent pattern in the sampling method which yielded the significantly different biomass values and there were no significant differences in sampling precision across a range of plant species, plant densities and two sediment types, the boat-based rake method appears to be a suitable replacement for the previously used ponar dredge and quadrat methods, when in-lake measurements are not practical.
journal_name
Environ Monit Assessjournal_title
Environmental monitoring and assessmentauthors
Rodusky AJ,Sharfstein B,East TL,Maki RPdoi
10.1007/s10661-005-6338-2subject
Has Abstractpub_date
2005-11-01 00:00:00pages
87-97issue
1-3eissn
0167-6369issn
1573-2959journal_volume
110pub_type
杂志文章abstract::This paper will present a simple method for measuring the radon exhalation rate from the medium surface in two cycles and also avoiding the effects of back-diffusion and chamber leakage. The method is based on a combination of the "accumulation chamber" technique and a radon monitor. The radon monitor performs the mea...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-013-3210-7
更新日期:2013-10-01 00:00:00
abstract::Nowadays, usage of compensatory models in land evaluation process and site selection is broadly observed. Meanwhile, methods such as analytical hierarchy process are used more than the others. Whether the usage of compensatory model methods in site selection studies is essentially correct or not is an issue that shoul...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-011-1976-z
更新日期:2012-01-01 00:00:00
abstract::With the acceleration of urbanization, the heat island effect, as a prominent feature of urban climate, has attracted more attention. Differences in urban landscape patterns have an essential impact on the urban thermal environment. The objective of the study is to examine the impact of urban landscape types and patte...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-020-08505-w
更新日期:2020-07-24 00:00:00
abstract::A simple, handly and powerful tool, called the DIMO model based on the Shannon-Wiener index, has been developed for analysis and evaluation of species diversity at plant community (alpha) level. Three axes, i.e. species richness, species evenness and the Shannon-Wiener index, were plotted in a two-dimensional space. A...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/BF00554798
更新日期:1995-02-01 00:00:00
abstract::We describe a low-cost fiber optic sensor for measuring photosynthetically active radiation (PAR) in turbulent flow. Existing technology was combined in a novel way for probe development addressing the need for a small but durable instrument for use in flowing water. Optical components including fiber optics and a wid...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-015-4597-0
更新日期:2015-06-01 00:00:00
abstract::Ecological monitoring is a complementary component of the overall environmental management and monitoring program of any Environmental Impact Assessment (EIA) report. The monitoring method should be developed for each project phase and allow for periodic reporting and assessment of compliance with the environmental co...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-008-0502-4
更新日期:2009-09-01 00:00:00
abstract::The concept of sustainable forest management (SFM) requires forest resource managers to monitor and collect information pertaining to their environmental, economic and social impact. There are increasing expectations from a variety of publics (government, customers, and other stakeholders) that forests be demonstrably...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章,评审
doi:10.1007/s10661-005-4329-y
更新日期:2005-09-01 00:00:00
abstract::Serious environmental problems have accompanied remarkable global economic growth for decades. To assist managers in the semiconductor industry with economic and environmental management, this study executes DuPont analysis to examine economic impacts from the effective implementation of sustainability initiatives. We...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-019-7598-6
更新日期:2019-06-14 00:00:00
abstract::In this study, the activities of 40K, 210Pb, 232Th, 234U, 235U, and 238U in size-segregated particulate matter (PM) were measured in the Singrauli Coalfield, India. Different isotopic compositions were found relative to natural uranium ratios. The radioactivity concentration ratios in different PM sizes [PM2.5, PM10, ...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-020-08619-1
更新日期:2020-10-06 00:00:00
abstract::The Croatian part of the Danube River extends over 188 km and comprises 58 % of the country's overall area used for commercial freshwater fishing. To date, the heavy metal contamination of fish in the Croatian part of the Danube has not been studied. The main purpose of this study was to determine heavy metal levels i...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-012-2625-x
更新日期:2013-02-01 00:00:00
abstract::This paper presents a procedure for estimating the distribution of ionic material in the NH3-HNO3-H2SO4-NaCl system and applies this procedure in a particular case. The data used were measurements of HNO3, NH3, NO 3 (-) , SO 4 (-) , NH 4 (+) Cl(-) and Na(+) performed during February 1989 - February 1990 in a central A...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/BF00547212
更新日期:1993-10-01 00:00:00
abstract::Hg(II) Retention capacities of nine bryophyte species, collected from Jinfo Mountains (JFM) in Chongqing, China, had been investigated with special reference to the effect of morphology and elevation of moss growth. Results indicated that adsorption capacities of bryophytes for Hg(II) became stronger with the increase...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-006-9594-x
更新日期:2007-10-01 00:00:00
abstract::The present study aimed to propose a water quality index (WQI) for the Federal District, Brazil, as a management tool for water resources used in irrigation. Irrigated agriculture is a sector that has been growing in the region, with a consequent demand for quality water. One strategy for assessing water quality in ru...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-020-08573-y
更新日期:2020-08-29 00:00:00
abstract::The residues of 19 EPA-organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) were determined in water samples collected from the near-shore surface water of Alexandria coast, Egypt, using gas chomatograph-electron capture detector (GC-ECD) and gas chromatograph-mass spectometer (GC-MS). Higher concentr...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-015-4537-z
更新日期:2015-06-01 00:00:00
abstract::Phytoplankton and water quality long term trends are presented from a 20-year monitoring program of Chesapeake Bay and several of its major tributaries. Increasing phytoplankton biomass and abundance are ongoing within this estuarine complex, with diatoms the dominant component, along with chlorophytes and cyanobacter...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-008-0680-0
更新日期:2009-03-01 00:00:00
abstract::The identification of spatio-temporal patterns of the urban growth phenomenon has become one of the most significant challenges in monitoring and assessing current and future trends of the urban growth issue. Therefore, spatio-temporal and quantitative techniques should be used hand in hand for a deeper understanding ...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-018-6522-9
更新日期:2018-02-20 00:00:00
abstract::Air pollution is threat to the lives of people living in big cities of Pakistan. In Lahore 1,250 people die annually because of air pollution. Mass transit system that can be put forth as solution to urban air pollution is contingent with right choice of system and its affiliation with motorized vehicles and nature of...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-007-9717-z
更新日期:2008-02-01 00:00:00
abstract::A total of 65 operators involved in lichen mapping studies in central and northwestern Italy underwent quality control tests during five lichen biomonitoring workshops organized between 1999 and 2000. The results showed that 75% quantitative accuracy and 90% quantitative precision can be regarded as satisfactory level...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1023/a:1014804318262
更新日期:2002-05-01 00:00:00
abstract::Sediment core from Korangi Creek, one of the polluted coastal locations along the Karachi Coast Pakistan, was collected to trace the history of marine pollution and to determine the impact of industrial activity in the area. Down core variation of metals such as Ca, K, Mg, Al, S, Ti, V, Cr, Mn, Fe, Ni, Cu and Zn was s...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-012-3056-4
更新日期:2013-08-01 00:00:00
abstract::The aim of this study was to investigate the temporal dynamics (monthly/tidal) of water temperature, salinity, chlorophyll-a (chlo-a), suspended particulate matter (SPM), particulate organic carbon (POC), and dissolved nutrients in the surf zone of Monte Hermoso sandy beach, Argentina. We also aimed to understand the ...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-016-5495-9
更新日期:2016-08-01 00:00:00
abstract::A field experiment was conducted over two seasons to evaluate the dissipation kinetics and assess the risks of chlorfenapyr in tomato and cabbage following foliar application of chlorfenapyr 10% SC at 100 and 200 g a.i. ha-1. Samples of tomato, cabbage, and soil were analyzed and quantified by gas chromatography-elect...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-017-6457-6
更新日期:2018-01-09 00:00:00
abstract::Cancer is a leading cause of death worldwide. Excluding the genetic factors, environmental factors, mainly the pollutants, have been implicated in the causation of the majority of cancers. Wastewater originated from health-care sectors such as hospitals may carry vast amounts of carcinogenic and genotoxic chemicals to...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-014-4180-0
更新日期:2015-01-01 00:00:00
abstract::In this paper, a new game theoretic methodology is developed for interbasin water transfer management with regard to economic, equity, and environmental criteria. The main objective is to supply the competing users in a fair way, while the efficiency and environmental sustainability criteria are satisfied and the util...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-009-1070-y
更新日期:2010-08-01 00:00:00
abstract::The discharge of sewage effluents into low-order streams has negative effects on water quality. Macrophytes can be efficient in the treatment of this wastewater due to the removal of the main pollutants. The genotoxicity of sewage-polluted water discharging into La Choza stream was evaluated by testing with Allium cep...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-017-5892-8
更新日期:2017-04-01 00:00:00
abstract::Cellulose emerges as an alternative for the treatment of water contaminated with heavy metals due to its abundant biomass and its proven potential in the adsorption of pollutants. The aquatic plant Eichhornia crassipes is an option as raw material in the contribution of cellulose due to its enormous presence in contam...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章,评审
doi:10.1007/s10661-019-8032-9
更新日期:2020-01-25 00:00:00
abstract::Airborne particulate matter (PM) has become one of the dominant pollutants with the increasing material and energy demand due to global economic growth. The main objective of this research is to provide a comprehensive receptor level characterisation of the particulate matter collected in a city environment. Particula...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-011-2054-2
更新日期:2012-03-01 00:00:00
abstract::Phytoplankton species composition and seasonal changes were investigated in the Bhoj wetland Bhopal. Taxonomic composition, diversity, and abundance of phytoplankton were studied at nine stations from March 2008 to February 2010, in relation to various physico-chemical factors. Total phytoplankton species composition ...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-014-4136-4
更新日期:2015-01-01 00:00:00
abstract::The wetland of focus, Inle Lake, located in central Myanmar, is well known for its unique biodiversity and culture, as well as for ingenious floating garden agriculture. During the last decades, the lake area has seen extensive degradation in terms of water quality, erosion, deforestation, and biodiversity concomitant...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-015-4508-4
更新日期:2015-06-01 00:00:00
abstract::Herbal tea is consumed widely in China due to their therapeutic efficacy, mild features, and relatively low cost. To assess the health risk associated with drinking herbal tea, arsenic and seven heavy metals, namely Cu, Zn, Fe, Mn, Cd, Ni, and Pb in eight different types of herbal flowers and their infusions were dete...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-012-2839-y
更新日期:2013-05-01 00:00:00
abstract::Closed municipal and industrial waste landfill sites create potential hazard of ground water pollution. Pollutants that occur in leachate infiltrate to the soil substratum, where they are carried to in underground water. A municipal waste landfill substratum can be used for elimination of pollutants contained in leach...
journal_title:Environmental monitoring and assessment
pub_type: 杂志文章
doi:10.1007/s10661-018-6776-2
更新日期:2018-06-20 00:00:00