Abstract：
:In this study we examined the effect of: observer presence; observer speed; and the impact that multiple surveys had on the number of counted fish in a visual census survey in a typical Mediterranean rocky habitat. SCUBA observer presence had no influence on the number of fish per survey. An improvement in the methodology to estimate the number of fish was demonstrated by using two different speeds: slow speed for benthic species and higher speed for epibenthic ones. No differences in the number of fish per survey were found among successive surveys along the same transects, even with the shortest time interval used: 5 min. We also examined the ability of observers to estimate fish length during visual census by using wooden fish models. Significant differences in size estimations were found using two different estimation methods (i.e. size-classes estimates and continuous measures). Estimating fish length to a size class was more accurate in estimating size, while transformed size to calculate biomass from length estimates was more accurate using continuous measures.
journal_name
Mar Environ Resjournal_title
Marine environmental researchauthors
De Girolamo M,Mazzoldi Cdoi
10.1016/s0141-1136(00)00028-3keywords:
subject
Has Abstractpub_date
2001-02-01 00:00:00pages
1-16issue
1eissn
0141-1136issn
1879-0291pii
S0141-1136(00)00028-3journal_volume
51pub_type
杂志文章abstract：:Runoff and sewage discharge from land developments can cause significant changes in water quality of coastal waters, resulting in coral degradation. Coastal waters around Phuket, Thailand are influenced by numerous sewage outfalls associated with rapid tourism development. Water quality and biological monitoring aroun...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2009.11.011
更新日期：2010-06-01 00:00:00
abstract：:Southern hemisphere humpback whales have evolved energetically demanding capital breeding and migratory life-history behaviours. It has been hypothesised that not all individuals of a population participate in the seasonal migration each year, or only undertake partial migrations. Given the cost of migration and repro...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2019.104749
更新日期：2019-10-01 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：:The effects of ex situ exposure of Mytilus galloprovincialis to Superdispersant-25 (S-25), diesel oil and dispersed diesel oil mixtures were studied by the impact on level of DNA damage in haemocytes (comet assay) and the cardiac activity patterns of mussels. Specimens were exposed for 72 h in a static system to diese...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.05.001
更新日期：2015-07-01 00:00:00
abstract：:Macondo source oils and artificially weathered oil residues from 150 °C+ to 300 °C+, including artificially photo oxidized oils, were prepared and used for generating low energy water accommodated fractions (LE-WAFs) in order to assess the impact of oil weathering on WAF chemistry composition and toxicity to marine or...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.104928
更新日期：2020-05-01 00:00:00
abstract：:Settling organic matter (OM) is the major food source for heterotrophic benthic fauna. The high sorption affinity of many contaminants for OM implies that OM can influence both the distribution and bioavailability of contaminants. Here, we experimentally examine the role of settling OM of various nutritional qualities...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2007.11.004
更新日期：2008-04-01 00:00:00
abstract：:We studied the accumulation of polychlorinated biphenyls (PCBs), 1,1,1.trichloro-2,2-bis[p-chlorophenyl]ethane (DDT) and its metabolites, and vitamins A and E in the top levels of the Baltic Sea food web. The investigation focused on the transfer of contaminants and vitamins to the ringed seal (Phoca hispida baltica) ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2004.10.007
更新日期：2005-09-01 00:00:00
abstract：:Seagrasses represent high primary productivity and provide important ecosystem services to the marine environment. Seagrass-associated microbial communities are playing essential ecological functional roles in biogeochemical cycles. However, little is known about the effect of seagrass vegetation on microbial communit...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105174
更新日期：2020-12-01 00:00:00
abstract：:Nrf2 is a well-known transcription factor controlling a number of antioxidant defense-related genes, which is understudied in bivalves. In this study, oysters Crassostrea gigas were exposed for 24, 48 and 96 h to 10 or 30 μM tert-butylhydroquinone (tBHQ), a classic Nrf2 activator. At 96 h, a clear induction of GSH-rel...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.07.020
更新日期：2017-09-01 00:00:00
abstract：:Competition for space is a remarkable ecological force, comparable to predation, producing a strong selective pressure on benthic invertebrates. Some invertebrates, thus, possess antimicrobial compounds to reduce surface bacterial growth. Antimicrobial inhibition is the first step in avoiding being overgrown by other ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.02.001
更新日期：2015-04-01 00:00:00
abstract：:Concern over endocrine disrupters in coastal ecosystems has stimulated global efforts to understand their potential impacts on fish and invertebrate communities. Given that marine crustaceans are sensitive to the effects of alkylphenols and other xenobiotics, we are currently investigating whether these responses may ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00113-7
更新日期：2002-09-01 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：:Halogenated aromatic hydrocarbons (HAHs) and polynuclear aromatic hydrocarbons (PAHs) are major environmental contaminants. Fish species that are chronically exposed to these compounds can develop resistance to their toxic effects. In all fish species studied to date, toxicant resistance has been accompanied by decrea...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00184-8
更新日期：2002-09-01 00:00:00
abstract：:The Portuguese continental coast is influenced by several oceanographic processes and is located near the confluence of three biogeographic realms (from the North Atlantic, South Atlantic and Mediterranean). Given these features, the topography of the Portuguese coast, possible variations in fishing effort and reporte...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105044
更新日期：2020-09-01 00:00:00
abstract：:The role of seawater NOM in reducing metal toxicity for marine organisms is not well understood. We investigated the effects of five different marine NOMs (two autochthonous, one allochthonous, two of mixed origin, at 8 mg C/L), three metals (6 μg Cu/L; 20 μg Pb/L; 25 μg Zn/L), and combinations between them, to early ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2017.12.009
更新日期：2018-04-01 00:00:00
abstract：:This study aimed to add light-avoidance as a categorizing technique for the study of mesopelagic acoustic layers. Data recorded along the 20° W parallel from 20° N to Iceland showed three types of mesopelagic layers: the non-avoiding non-migrant deep scattering layer (NMDSL), which dropped its intensity toward the nor...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2019.104842
更新日期：2020-02-01 00:00:00
abstract：:Isotopic studies of archived fish scales have tremendous potential to develop long-term retrospectives that provide important insights into how humans have altered aquatic ecosystems. However, fish specimens in museum archives and other repositories typically date to time periods when the impacts of industrial societi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.104982
更新日期：2020-09-01 00:00:00
abstract：:Climate change is a global threat for marine ecosystems, their biodiversity and consequently ecosystem services. In the marine realm, marine protected areas (MPAs) were designated to counteract regional pressures, but they might be ineffective to protect vulnerable species and habitats, if their distribution is affect...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.105230
更新日期：2021-01-01 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：:The blue mussel (Mytilus spp.) is widely used as a bioindicator for monitoring of coastal water pollution (mussel watch programs). Herein we provide a review of this study field with emphasis on: the suitability of Mytilus spp. as environmental sentinels; uptake and bioaccumulation patterns of key pollutant classes; t...
journal_title：Marine environmental research
pub_type： 杂志文章,评审
doi：10.1016/j.marenvres.2017.07.024
更新日期：2017-09-01 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：:Immunohistochemical localization of enzymes is compared directly with localization of enzyme activity with (catalytic) enzyme histochemical methods. The two approaches demonstrate principally different aspects of an enzyme. The immunohistochemical method localizes the enzyme protein whether it is active or not whereas...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/s0141-1136(02)00169-1
更新日期：2002-09-01 00:00:00
abstract：:The transcriptomic effects of Ibuprofen (IBU) in the digestive gland tissue of Mytilus galloprovincialis Lam. specimens exposed at low environmental concentrations (250 ng L(-1)) are presented. Using a 1.7 K feature cDNA microarray along with linear models and empirical Bayes statistical methods 225 differentially exp...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2016.05.010
更新日期：2016-08-01 00:00:00
abstract：:The use of fish in environmental monitoring has become increasingly important in recent years as anthropogenic substances, many of which function as prooxidants, are accumulating in aquatic environments. We have measured a battery of antioxidant defenses as a measure of oxidative status, as well as protein carbonylati...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.04.002
更新日期：2008-08-01 00:00:00
abstract：:To better understand the complexity of the brain-pituitary-gonad axis (BPG) in fish, we developed a biologically based pharmacodynamic model capable of accurately predicting the normal functioning of the BPG axis in salmon. This first-generation model consisted of a set of 13 equations whose formulation was guided by ...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2006.04.022
更新日期：2006-07-01 00:00:00
abstract：:Seasonal shell growth patterns were analyzed using the stable oxygen and carbon isotope values of live-collected specimens of the bivalve Callista chione from two sites in the Adriatic Sea (Pag and Cetina, Croatia). Micromilling was performed on the shell surface of three shells per site and shell oxygen isotopes of t...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2018.01.011
更新日期：2018-03-01 00:00:00
abstract：:The desiccation tolerance of the intertidal seagrass Zostera japonica has been demonstrated in a number of studies; however, the factors limiting expansion of intertidal seagrass species into subtidal zones remain controversial. We transplanted Z. japonica shoots from the intermediate intertidal zone into the plots wi...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2020.104959
更新日期：2020-05-01 00:00:00
abstract：:Fish farming is an important source of organic matter input in coastal waters, which contributes to eutrophication. In this study, the macrofaunal benthic community was studied after the cessation of fish farming with the aim of improving our understanding of benthic succession and sediment recovery in a marine ecosys...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2006.05.006
更新日期：2006-12-01 00:00:00
abstract：:The aim of this investigation was to test the hypothesis that fasting-induced augmented lysosomal autophagic turnover of cellular proteins and organelles will reduce potentially harmful lipofuscin (age-pigment) formation in cells by more effectively removing oxidatively damaged proteins. An animal model (marine snail-...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2015.04.001
更新日期：2015-06-01 00:00:00
abstract：:Oysters Crassostrea rhizophorae and Crassostrea gigas were kept for fourteen days at four sites in São José, SC, Brazil, chosen according to a sewage discharge contamination gradient. Enzymatic activities of CAT, GST, G6PDH and GR were evaluated in gills and digestive glands. Higher CAT activity was observed in tissue...
journal_title：Marine environmental research
pub_type： 杂志文章
doi：10.1016/j.marenvres.2008.02.057
更新日期：2008-07-01 00:00:00
