Multi-frequency and light-avoiding characteristics of deep acoustic layers in the North Atlantic.


: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 north, the avoiding migrating fish layers (MDSL), which were more intense at upwelling areas and toward the north, and a secondary deeper NMDSL at the southern part. Light avoidance was only discernible at 18 kHz within the main NMDSL when this layer was intense, suggesting that migrants are barely seen at 38 kHz when other resonant scatterers occupy these depths. These results highlight the importance of employing the 18 kHz frequency from a vessel borne echosounder or lowered echosounders attached to a probe to study gas-bearing migrants.


Mar Environ Res


Peña M,Cabrera-Gámez J,Domínguez-Brito AC




Has Abstract


2020-02-01 00:00:00












  • Cephalopod beak sections used to trace mercury levels throughout the life of cephalopods: The giant warty squid Moroteuthopsis longimana as a case study.

    abstract::Cephalopods represent an important pathway for mercury transfer through food webs. Due to the general difficulties in capturing oceanic squid, beaks found in the diet of top predators can be used to study their life-cycles and ecological role. Using upper beaks of the giant warty squid Moroteuthopsis longimana (major ...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Queirós JP,Bustamante P,Cherel Y,Coelho JP,Seco J,Roberts J,Pereira E,Xavier JC

    更新日期:2020-10-01 00:00:00

  • Oxidative stress in Laeonereis acuta (Polychaeta, Nereididae): environmental and seasonal effects.

    abstract::Laeonereis acuta was seasonally collected in an industrially polluted site (P) and in an unpolluted site (UP) at the Patos Lagoon estuary (southern Brazil). Glutathione S-transferase (GST), superoxide dismutase (SOD) and catalase (CAT) activity (U/mg protein) was determined in five groups of worms from each site. Meta...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Geracitano LA,Monserrat JM,Bianchini A

    更新日期:2004-08-01 00:00:00

  • Benthic mucilage blooms threaten coralligenous reefs.

    abstract::Mucilaginous aggregates produced by planktonic or benthic algae are considered ecological threats to marine systems. The study evaluated the effects of the spread of benthic mucilaginous aggregates on the structure of coralligenous assemblages. The assemblage and the quality of a site subjected to a benthic mucilage b...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Piazzi L,Atzori F,Cadoni N,Cinti MF,Frau F,Ceccherelli G

    更新日期:2018-09-01 00:00:00

  • Genotoxic damage of benzo[a]pyrene in cultured sea bream (Sparus aurata L.) hepatocytes: harmful effects of chronic exposure.

    abstract::The large majority of studies on the genotoxic hazard of PAHs polluted water widely applied the ENA assay as versatile tool in large number of wild and farmed aquatic species. Nuclear abnormalities are commonly considered to be a direct consequence of genotoxic lesions in DNA macromolecule, and such evaluation might b...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Pastore AS,Santacroce MP,Narracci M,Cavallo RA,Acquaviva MI,Casalino E,Colamonaco M,Crescenzo G

    更新日期:2014-09-01 00:00:00

  • Linking multiple facets of biodiversity and ecosystem functions in a coastal reef habitat.

    abstract::Reef-building species play key roles in promoting local species richness and regulating ecosystem functions like biogeochemical fluxes. We evaluated the functioning of a habitat engineered by the reef-building polychaete Sabellaria alveolata, by measuring oxygen and nutrient fluxes in the reef structures and in the so...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Jones AG,Denis L,Fournier J,Desroy N,Duong G,Dubois SF

    更新日期:2020-12-01 00:00:00

  • Recovery trends of Scrobicularia plana populations after restoration measures, affected by extreme climate events.

    abstract::The Mondego estuary (Portugal) went through different ecological scenarios over the last decades. An eutrophication process led to a decline in the ecosystem quality. The ensuing restoration plan resulted into a gradual ecological recovery, which was impaired by the occurrence of successive extreme climate events that...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Verdelhos T,Cardoso PG,Dolbeth M,Pardal MA

    更新日期:2014-07-01 00:00:00

  • Effects of tributyltin on salmon interrenal CYP11β, steroidogenic factor-1 and glucocorticoid receptor transcripts in the presence and absence of second messenger activator, forskolin.

    abstract::The mechanisms by which TBT produces modulations of the endocrine systems are not fully described. In this study, juvenile salmon were force-fed diet containing TBT (0: solvent control, 0.1, 1 and 10 mg/kg fish) for 72 h. Subsequently, fish exposed to solvent control and 10 mg/kg TBT were exposed to waterborne concent...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Kortner TM,Pavlikova N,Arukwe A

    更新日期:2010-01-01 00:00:00

  • Multi-marker eDNA metabarcoding survey to assess the environmental impact of three offshore gas platforms in the North Adriatic Sea (Italy).

    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


    authors: Cordier T,Frontalini F,Cermakova K,Apothéloz-Perret-Gentil L,Treglia M,Scantamburlo E,Bonamin V,Pawlowski J

    更新日期:2019-04-01 00:00:00

  • Bioaccumulation of PCB congeners in marine benthic infauna.

    abstract::Field concentrations of polychlorinated biphenyls (PCBs) were measured in sediment and nine marine soft bottom invertebrate species. Lipid- and organic carbon normalised biota-sediment accumulation factors (BSAFs) were determined for 29 nonplanar and 11 coplanar congeners. To investigate whether the bioaccumulation wa...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Magnusson K,Ekelund R,Grabic R,Bergqvist PA

    更新日期:2006-05-01 00:00:00

  • Nematode community dynamics over an annual production cycle in the central North Sea.

    abstract::Nematode species composition, trophic structure and body size distributions were followed over an annual production cycle in the central North Sea; to test responses to temporally changing food quality and quantity in the sediment. Changes in the phytoplankton concentration in the water column were quantitatively refl...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Schratzberger M,Forster RM,Goodsir F,Jennings S

    更新日期:2008-12-01 00:00:00

  • Benthic recovery during open sea fish farming abatement in Western Mediterranean, Spain.

    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


    authors: Sanz-Lázaro C,Marin A

    更新日期:2006-12-01 00:00:00

  • Distribution and inducibility of P-glycoprotein in the catfish: immunohistochemical detection using the mammalian C-219 monoclonal.

    abstract::Mounting evidence suggests that the P-glycoprotein (pgp) efflux pump may be a modulator of bioavailability and a mode of excretion for xenobiotics. Immunohistochemistry was utilized to examine the distribution and inducibility of a pgp like protein in catfish. Immunoreactivity to the MDR C-219 monoclonal antibody was ...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Kleinow KM,Doi AM,Smith AA

    更新日期:2000-07-01 00:00:00

  • Trophic links and nutritional condition of fish early life stages in a temperate estuary.

    abstract::The physiological and nutritional condition of fish larvae affect their survival and thus, the success of estuaries as nursery areas. Fatty acid composition has been useful to determine fish nutritional condition, as well as trophic relationships in marine organisms. The present study analyses the fatty acid (FA) comp...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Primo AL,Correia C,Marques SC,Martinho F,Leandro S,Pardal M

    更新日期:2018-02-01 00:00:00

  • Differential effects of nutrient enrichment on carbon metabolism and dissolved organic carbon (DOC) fluxes in macrophytic benthic communities.

    abstract::Nutrient enrichment can alter negatively benthic communities and reduce their ecological services. This study explores in two contrasting seasons (winter and summer), the effects of in situ nutrient enrichment at the community level on carbon metabolism and dissolved organic carbon (DOC) fluxes in two benthic communit...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Egea LG,Jiménez-Ramos R,Hernández I,Brun FG

    更新日期:2020-12-01 00:00:00

  • Uniform functional structure across spatial scales in an intertidal benthic assemblage.

    abstract::To investigate the causes of the remarkable similarity of emergent assemblage properties that has been demonstrated across disparate intertidal seagrass sites and assemblages, this study examined whether their emergent functional-group metrics are scale related by testing the null hypothesis that functional diversity ...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Barnes RS,Hamylton S

    更新日期:2015-05-01 00:00:00

  • Assessing spatio-temporal changes in marine communities along the Portuguese continental shelf and upper slope based on 25 years of bottom trawl surveys.

    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


    authors: Moura T,Chaves C,Figueiredo I,Mendes H,Moreno A,Silva C,Vasconcelos RP,Azevedo M

    更新日期:2020-09-01 00:00:00

  • Effects of estrogen on the stress response in CuSO4-exposed PLHC-1 cells.

    abstract::As part of an effort to validate the use of heat shock proteins (hsp) as a biomarker of adverse effect, we investigated the impact of estrogen (E2), the hormone responsible for vitellogenisis in fish, on the induction of hsp 60 and 70. PLHC-1 (Pociliopsis lucida hepatoma cell line) cells were cultured under standard c...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Moreland JJ,Arrieta DE,Washburn BS

    更新日期:2000-07-01 00:00:00

  • Assessment of putative endocrine disrupters in an in vivo crustacean assay and an in vitro insect assay.

    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


    authors: Pounds NA,Hutchinson TH,Williams TD,Whiting P,Dinan L

    更新日期:2002-09-01 00:00:00

  • Toxic effects of cisplatin cytostatic drug in mussel Mytilus galloprovincialis.

    abstract::Antineoplastic drugs used in chemotherapy were detected in aquatic environment: despite the very low concentrations (ng L(-1) to ug L(-1)), due to their potent mechanism of action they could have adverse effects on non-target aquatic organisms particularly under chronic exposure. Cisplatin (CDDP) is one of the most ef...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Trombini C,Garcia da Fonseca T,Morais M,Rocha TL,Blasco J,Bebianno MJ

    更新日期:2016-08-01 00:00:00

  • Epifauna dynamics at an offshore foundation--implications of future wind power farming in the North Sea.

    abstract::In the light of the introduction of thousands of large offshore wind power foundations into the North Sea within the next decades, this manuscript focuses on the biofouling processes and likely reef effects. The study explores the macrozoobenthos (biofouling) colonization at an offshore platform which is comparable to...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Krone R,Gutow L,Joschko TJ,Schröder A

    更新日期:2013-04-01 00:00:00

  • The expression pattern of hsp70 plays a critical role in thermal tolerance of marine demersal fish: Multilevel responses of Paralichthys olivaceus and its hybrids (P. olivaceus ♀ × P. dentatus ♂) to chronic and acute heat stress.

    abstract::Ocean warming has multifaceted impacts on marine organisms. This study investigated the different responses of Paralichthys olivaceus and the hybrids (P. olivaceus ♀ × P. dentatus ♂) to chronic and acute heat stress. By comparing their survival, behavioural and histological changes, we found that the hybrids possess a...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Liu Y,Ma D,Zhao C,Xiao Z,Xu S,Xiao Y,Wang Y,Liu Q,Li J

    更新日期:2017-08-01 00:00:00

  • Vegetable oil spills on salt marsh sediments; comparison between sunflower and linseed oils.

    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


    authors: Pereira MG,Mudge SM,Latchford J

    更新日期:2003-09-01 00:00:00

  • Baited camera survey of deep-sea demersal fishes of the West African oil provinces off Angola: 1200-2500m depth, East Atlantic Ocean.

    abstract::Deep-sea demersal fish surveys using baited cameras were undertaken in the West African oil provinces between 1297 m and 2453 m depth in 2002, 2005 and 2008. A total of 29 deployments amounting to 16,175 images encountered 31 species of bait attending deep-sea fish from 17 families. The extrapolated species richness w...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Jamieson AJ,Linley TD,Craig J

    更新日期:2017-08-01 00:00:00

  • Climate driven changes in subtidal kelp forest communities in NW Spain.

    abstract::Reconstructions suggest a massive decline of nearly 1400 ha of kelp forest in North Western Spain in 2007. In line with global rising temperatures, we hypothesized that Sea Surface Temperature (SST) surpassed a lethal threshold for kelp. We examined whether changes in SST correlated to the proposed decline in kelp for...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Voerman SE,Llera E,Rico JM

    更新日期:2013-09-01 00:00:00

  • Climate change effects on marine protected areas: Projected decline of benthic species in the North Sea.

    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


    authors: Weinert M,Mathis M,Kröncke I,Pohlmann T,Reiss H

    更新日期:2021-01-01 00:00:00

  • Carbonyl reductase mRNA abundance and enzymatic activity as potential biomarkers of oxidative stress in marine fish.

    abstract::Carbonyl reductase (CBR) is an enzyme involved in protection from oxidative stress. In rainbow trout (Oncorhynchus mykiss), the hepatic mRNA abundance of the two isoforms (A and B) is increased after exposure to treated sewage effluents, as well as after exposure with β-naphthoflavone (β-NF) and the pro-oxidant paraqu...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Albertsson E,Rad A,Sturve J,Larsson DG,Förlin L

    更新日期:2012-09-01 00:00:00

  • Induction of zona radiata and vitellogenin genes in estradiol and nonylphenol exposed male sheepshead minnows (Cyprinodon variegatus).

    abstract::Several genes normally induced by estradiol (E(2)) in female fish, those for vitellogenins (VTGs) and zona radiata proteins (ZRPs), are also inducible in males exposed to estrogenic chemicals. Male sheepshead minnows (SHM) were exposed to both E(2) and para-nonylphenol (NP), at several doses and times to determine a d...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Knoebl I,Hemmer MJ,Denslow ND

    更新日期:2004-08-01 00:00:00

  • Exoskeletal deformities in Palaemonidae: are they a threat to survival?

    abstract::Shrimps of the Palaemon genus have been affected for over 15 years by a problem of exoskeletal deformities, particularly in the Gironde estuary (France). Given the large numbers of individuals affected, this study focus on a better description of the phenomenon to estimate its impact on shrimps. This study, on Palaemo...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Béguer M,Feuillassier L,Elie P,Boët P,Girardin M

    更新日期:2010-04-01 00:00:00

  • Effects of novobiocin and methotrexate on the benthic amphipod Ampelisca brevicornis exposed to spiked sediments.

    abstract::The marine amphipod Ampelisca brevicornis was used as model organism of benthic macrofauna to assess the possible adverse effects of pharmaceuticals bound to sediments. Organisms were exposed to sediment spiked with novobiocin (NOV) and methotrexate (MTX) for 10 days in order to estimate the acute toxicity (lethal eff...

    journal_title:Marine environmental research

    pub_type: 杂志文章


    authors: Moreira LB,Maranho LA,Baena-Nogueras RM,Lara-Martín PA,Martín-Díaz ML

    更新日期:2016-12-01 00:00:00

  • Sea urchin larvae show resilience to ocean acidification at the time of settlement and metamorphosis.

    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


    authors: Espinel-Velasco N,Agüera A,Lamare M

    更新日期:2020-07-01 00:00:00