Abstract：
:The amount of macroalgal biomass is an important ecosystem variable. Estimates can be made for a sampled area or values can be extrapolated to represent biomass over a larger region. Typically biomass is scaled-up using the area multiplied by the mean: a non-spatial method. Where algal biomass is patchy or shows gradients, non-spatial estimates for an area may be improved by spatial interpolation. A separate issue with scaling-up biomass estimates is that conventional confidence intervals based on the standard error (SE) of the sample may not be appropriate. The issues around interpolation and confidence intervals were examined for three fucoid species using data from 40 × 0.25 m-2 quadrats thrown in a 0.717 ha sampling plot on the shore of Galway Bay. Despite evidence of spatial autocorrelation, interpolation did not appear to improve estimates of the total plot biomass of Fucus serratus and F. vesiculosus. In contrast, interpolated estimates for Ascophyllum nodosum had less error than those based on the non-spatial method. Bootstrapped confidence intervals had several benefits over those based on the SE. These benefits include the avoidance of negative confidence limits at low sample sizes and no assumptions of normality in the data. If there is reason to expect strong patchiness or a gradient of biomass in the area of interest, interpolation is likely to produce more accurate estimates of biomass than non-spatial methods. Development of methodologies for biomass would benefit from more definition of local and regional gradients in biomass and their associated covariates.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
Johnson MPdoi
10.1016/j.marenvres.2020.104906subject
Has Abstractpub_date
2020-04-01 00:00:00pages
104906eissn
0141-1136issn
1879-0291pii
S0141-1136(19)30802-5journal_volume
156pub_type
杂志文章abstract：:The environmental DNA (eDNA) metabarcoding represents a new promising tool for biomonitoring and environmental impact assessment. One of the main advantages of eDNA metabarcoding, compared to the traditional morphotaxonomy-based methods, is to provide a more holistic biodiversity information that includes inconspicuou...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2018.12.009
更新日期：2019-04-01 00:00:00
abstract：:Mining of seafloor massive sulfides (SMS) is imminent, but the ecology of assemblages at SMS deposits is poorly known. Proposed conservation strategies include protected areas to preserve biodiversity at risk from mining impacts. Determining site suitability requires biological characterisation of the mine site and pr...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2016.02.005
更新日期：2016-04-01 00:00:00
abstract：:Faunal assemblages of subtidal sedimentary environments are key components of coastal ecosystems. Benthic communities inhabiting the coastal zone near urban centers in Concepción Bay (Chile) have been described as highly disturbed (i.e. impoverished in diversity and species richness). This is due to the frequent prese...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.07.022
更新日期：2017-09-01 00:00:00
abstract：:Over 1990-1998, the Mondego estuary, Portugal, experienced profound modifications due to eutrophication, culminating in the disappearance and replacement of Zostera noltii by opportunistic macroalgae in the inner most disturbed areas. A decade after restoration measures implementation, Z. noltii started to gradually r...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2011.11.005
更新日期：2012-02-01 00:00:00
abstract：:Plasma vitellogenin and related parameters in the killifish Fundulus heteroclitus were measured at selected sites in the Chesapeake Bay. In males, vitellogenin was above the detection limit 14% of the time, and detections did not differ between sites or seasons. Few differences in plasma vitellogenin levels were found...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2009.06.006
更新日期：2009-10-01 00:00:00
abstract：:Irregular sea urchins such as the spatangoid Spatangus purpureus are important bioturbators that contribute to natural biogenic disturbance and the functioning of biogeochemical cycles in soft sediments. In the coastal waters of the Balearic Islands S. purpureus occurs in soft red algal beds, and can reach high densit...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2011.01.008
更新日期：2011-05-01 00:00:00
abstract：:Extensive research has shown that the early life stages of marine organisms are sensitive to ocean acidification (OA). Less is known, however, on whether larval settlement and metamorphosis may be affected, or by which mechanisms. These are key processes in the life cycle of most marine benthic organisms, since they m...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.104977
更新日期：2020-07-01 00:00:00
abstract：:The common sea star Asterias rubens represents a key-species of the North-Eastern Atlantic macro benthic community. The cells of their immune system, known as coelomocytes, are the first line of defence against environmental hazards. Here, we report the results of investigations on the immune cells response of sea sta...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2011.09.008
更新日期：2012-05-01 00:00:00
abstract：:Quantification of the egg yolk precursor vitellogenin (VTG) in fish has become a standard technique to detect estrogenic effects of known chemicals and environmental samples. In the present study, we have analysed VTG induction by estradiol, ethynylestradiol and genistein exposure in the model teleost medaka (Oryzias ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/S0141-1136(03)00082-5
更新日期：2004-04-01 00:00:00
abstract：:Corkwing wrasse (Symphodus melops L.), a protogynous, non-migratory lipfish species, living close to rocky shores was chosen as an indicator species for the monitoring of biological effects of contaminants. Fish were caught by local fisherman at the Norwegian west coast in fjord sites within the framework of the EU BE...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.02.056
更新日期：2008-07-01 00:00:00
abstract：:A laboratory experiment was performed with the clam Ruditapes decussatus, fed with the toxic dinoflagellate Gymnodinium catenatum and the non-toxic algae Isochrysis galbana (14 days) and subsequently only with I. galbana (15 days). Individual paralytic shellfish toxins were determined by LC-FLD in G. catenatum cells, ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2012.01.002
更新日期：2012-06-01 00:00:00
abstract：:Ocean acidification (OA) is predicted to affect the physiology of some fishes. To date, most studies have investigated this issue using stable pCO2 levels based on open ocean projections. Yet, most shallow, nearshore systems experience temporal and spatial pCO2 fluctuations. For example, pCO2 on coral reefs is highest...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105224
更新日期：2021-01-01 00:00:00
abstract：:Meiofauna can play an important role in the carbon fluxes of soft-bottom coastal habitats. Investigation of their feeding behavior and trophic position remains challenging due to their small size. In this study, we determine and compare the food sources used by nematodes and benthic copepods by using stable isotope co...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2019.05.014
更新日期：2019-08-01 00:00:00
abstract：:Rapid and cost-effective methods to monitor the presence of diarrhetic shellfish poisoning (DSP) toxins in seawater samples in an easy and reliable manner are required to protect human health and avoid economic losses to shellfish industry. Immunoassays for the detection of okadaic acid (OA) and dinophysistoxin-1 and ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.11.004
更新日期：2018-02-01 00:00:00
abstract：:The need to develop powerful tools to detect exposure and effects of POPs and emerging contaminants in Mediterranean cetaceans led us to develop a suite of sensitive non-lethal biomarkers in integument biopsies of free-ranging animals. In order to propose induction of CYP1A1 and CYP2B, detected by Western blot analysi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.02.006
更新日期：2008-07-01 00:00:00
abstract：:Polycyclic aromatic hydrocarbons (PAH) were measured in sediment cores from 13 locations in South-Western Barents Sea as part of a detailed study of the Norwegian seabed under the MAREANO program. The generally low PAH levels found, an average around 200 ng g(-1) dry weight for sum PAH, indicate low inputs of petroleu...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2009.06.013
更新日期：2009-12-01 00:00:00
abstract：:Harmful algal blooms (HABs) have increased throughout the world's coastal oceans during the last century mostly due to water eutrophication and climate change. These blooms are often accompanied by extreme extensive negative impacts to fisheries, coastal resources, public health and local economies. However, limited s...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2018.06.019
更新日期：2018-09-01 00:00:00
abstract：:Mercury (Hg) in Atlantic cod (Gadus morhua) is one of many parameters that are monitored through OSPAR's Joint Assessment and Monitoring Programme. Time series for cod in the Inner Oslofjord (Norway) go back to 1984. Until 2014, annual median Hg-concentrations in cod from the Inner Oslofjord showed both significant up...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.07.018
更新日期：2017-09-01 00:00:00
abstract：:This study assesses the relative importance of water and sediments as vectors of TBT uptake in the sediment-dwelling suspension feeder, Ruditapes decussatus. Accumulation of TBT was determined in R. decussatus exposed for 60 days to moderately high but environmentally realistic levels of TBT in water (100 ng Snl(-1)) ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00104-6
更新日期：2002-08-01 00:00:00
abstract：:The 5900 MW Younggwang nuclear power station on the west coast of Korea discharges warm water affecting coastal ecology [KORDI report (2003). Wide area observation of the impact of the operation of Younggwang nuclear power plant 5 and 6, No. BSPI 319-00-1426-3, KORDI, Seoul, Korea]. Here the spatial and temporal chara...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2005.09.001
更新日期：2006-03-01 00:00:00
abstract：:This report is the first seasonal study of anthropogenic pollutant biodegradation rates in Antarctic coastal waters. The capacity of surface waters from Rothera Research Station, Adelaide Island, Antarctica, to biodegrade the anionic surfactant sodium dodecyl sulphate (SDS) was quantified in biodegradation tests from ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(01)00127-1
更新日期：2002-05-01 00:00:00
abstract：:A heart fatty acid-binding protein (H-FABP) cDNA was isolated from the liver of the mummichog (Fundulus heteroclitus) and the complete cDNA sequence and predicted amino acid sequence was determined. This cDNA binds to a mRNA product of 0.95 kb with the highest level of RNA expression in the male liver, gills, and gona...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00130-7
更新日期：2002-09-01 00:00:00
abstract：:This study examined total mercury (Hg) concentrations in cartilaginous fishes from Southern New England coastal waters, including smooth dogfish (Mustelus canis), spiny dogfish (Squalus acanthias), little skate (Leucoraja erinacea), and winter skate (Leucoraja ocellata). Total Hg in dogfish and skates were positively ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2014.05.009
更新日期：2014-08-01 00:00:00
abstract：:The new record of a shallow-water submarine hydrothermal field (<150 m w.d.) in the western Mediterranean Sea (Tyrrhenian Sea, Italy) allows us to study CO2 fluid impact on benthic foraminifers. Benthic foraminifers calcification process is sensitive to ocean acidification and to local chemical and physical parameters...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2018.02.015
更新日期：2018-05-01 00:00:00
abstract：:The effects of a simulated spill of sunflower oil in salt marsh sediments were compared with an experiment with linseed oil. Sunflower and linseed oil penetrated the sediments at the same rates but different adsorption of the oils onto sediment particles resulted in the establishment of anaerobic conditions at shallow...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/S0141-1136(02)00309-4
更新日期：2003-09-01 00:00:00
abstract：:The ecological effects of tuna fish farms are largely undocumented. This study confirmed their high capacity to attract surrounding wild fish. The aggregation effect persisted year round, without detectable seasonal differences. Farm impact was restricted to close proximity of the sea cages, and was more prominent ove...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.10.015
更新日期：2017-12-01 00:00:00
abstract：:Accurate and reliable benthic quality indicators are in great demand following the recent developments and the strict time schedule for implementing the European Water Framework Directive. The Mondego estuary has experienced a progressive deterioration during the 1990s, followed by a partial ecological recovery due to...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2009.04.001
更新日期：2009-07-01 00:00:00
abstract：:At present, environmental impacts from offshore oil and gas activities are partly determined by measuring changes in macrofauna diversity. Morphological identification of macrofauna is time-consuming, expensive and dependent on taxonomic expertise. In this study, we evaluated the applicability of using foraminiferal-s...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2016.08.009
更新日期：2016-09-01 00:00:00
abstract：:The transformation of estuaries by human activities continues to alter the biogeochemical balance of the coastal ocean. The disruption of this balance can negatively impact the provision of goods and services, including fisheries, commerce and transportation, recreation and esthetic enjoyment. Here we examine a link, ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2014.04.006
更新日期：2014-08-01 00:00:00
abstract：:Toxicity tests were performed exposing the polychaete Dinophilus gyrociliatus to seawater samples containing the toxic dinoflagellate Ostreopsis cf. ovata. Experiments were carried out twice in mid summer, when O. cf. ovata bloomed, and twice in late summer, when the dinoflagellate density declined. Each time, four tr...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2011.08.009
更新日期：2011-10-01 00:00:00
