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Marine Pollution Bulletin | Page 2

Mariana Muniz Silva, Gustavo Carvalho Maldonado, Rebeca Oliveira Castro, João de Sá Felizardo, Renan Pereira Cardoso, Roberto Meigikos Dos Anjos, Fábio Vieira de Araújo
Analyses of thermotolerant coliform and heterotrophic bacteria as well as Escherichia coli and Vibrio species were carried out on plastic samples and in the surrounding waters of Guanabara Bay to evaluate plastic debris as vehicles of bacterial dispersal. Chemical characterizations of plastics were performed using Fourier transform infrared spectroscopy (FTIR). Plastic debris with high coliform contents were found, while their respective water samples had only low titers. No correlations were observed, however, between the amounts of bacteria and the chemical compositions of the plastic debris...
April 2019: Marine Pollution Bulletin
Suhas S Shetye, Siby Kurian, Hema Naik, Mangesh Gauns, A V Chndrasekhararao, Ashwini Kumar, Bhagyashri Naik
The relative importance of organic nitrogen (ON) and inorganic nitrogen (IN) as nitrogen sources for the phytoplankton communities were studied through a seasonal time series of nitrogen species in the eastern Arabian Sea. Seasonal data on nitrogen species showed that ON dominates the system throughout the year and account for >90% of the total nitrogen (TN) during north east monsoon (NEM). The average ON concentration in the study region was 11.5 μM during NEM as compared to 7.2 μM during south west monsoon (SWM)...
April 2019: Marine Pollution Bulletin
Alessandro Ciro Rappazzo, Maria Papale, Carmen Rizzo, Antonella Conte, Stefania Giannarelli, Massimo Onor, Carlo Abete, Pietro Cefali, Emilio De Domenico, Luigi Michaud, Angelina Lo Giudice
Heavy metals (HMs) and polychlorobiphenyls (PCBs) enter the Arctic environment through a variety of anthropogenic sources with deleterious effects towards biota and public health. Bacteria first transfer toxic compounds to higher trophic levels and, due to the tight link existing between prokaryotic community functions and the type and concentration of contaminants, they may be useful indicator of pollution events and potential toxicity to other forms of life. The occurrence and abundance of HM-tolerant and PCB-oxidizing bacteria in the sub-Arctic Pasvik river area, heavily impacted by anthropogenic modifications, was related to HM and PCB contamination...
April 2019: Marine Pollution Bulletin
D C Firth, K Salie, B O'Neill, L C Hoffman
Mussels pose health risks to consumers through accumulation of trace metals from the ocean. Saldanha Bay, South Africa, has heavy industry and international shipping, creating concerns over pollution levels for aquaculture facilities. Samples of C. meridionalis and M. galloprovincialis were collected from mussel rafts over two-years and analysed for trace metal content using Inductively Coupled Plasma Mass Spectrometry. Aluminium, Cr, Fe, Zn, Cd and Pb were higher in M. galloprovincialis, while C. meridionalis accumulated more Cu and Mn...
April 2019: Marine Pollution Bulletin
Thi Ai My Tran, Govindan Malarvannan, Thai Long Hoang, Van Hop Nguyen, Adrian Covaci, Marc Elskens
This is the first study on polychlorinated biphenyls (PCBs) in fish from the Cau Hai lagoon, a part of the largest coastal lagoon in Southeast Asia. Seven selected PCB congeners and organochlorine pesticides in sediments and edible fish tissues were quantified by GC-MS. The sum of ICES-7 PCB and DDTs concentrations in fish species consumed regularly and of economic value were in ranges 26-43 ng g-1 lw and 182-277 ng g-1 lw, respectively. The ratio between the parent DDT compound and the sum of metabolites, DDE and DDD, was most of the time smaller than 1, suggesting primarily an historical contamination of the lagoon...
April 2019: Marine Pollution Bulletin
Raquel Serrano, Luis Gras, Francisca Giménez-Casalduero, Yoana Del-Pilar-Ruso, Guillermo Grindlay, Juan Mora
During mining activities historically developed at Sierra Minera (Cartagena-La Unión, Spain), high amounts of trace elements were discharged to the Mar Menor coastal lagoon mainly through El Beal Wadi. The objective of this study is to establish the role played by the Cymodocea nodosa in the coastal marine dynamics of trace elements at the mouth of the wadi. To this end, the content of nine trace elements (As, Cd, Cr, Cu, Fe, Mn, Ni, Pb and Zn) in different marine environmental compartments (i.e. marine and coastal sediments, C...
April 2019: Marine Pollution Bulletin
Lei Li, Mei Jiang, Yong Liu, Xinqiang Shen
A better understanding of the relationships between heavy metal pollution and sediment sources in different aquatic environments of estuary is needed. The purpose of this paper is to evaluate the levels and spatial distribution of heavy metals (Cu, Zn, Pb, Cd, Hg, and As) of surface sediments collected from 20 stations in the Yangtze River estuary from 2012 to 2016. The results showed that an overall decreasing trend in the concentration of these six types of heavy metals with distance from the shoreline. Typically, there was also a high concentration of heavy metals in muddy areas...
April 2019: Marine Pollution Bulletin
Marte Haave, Claudia Lorenz, Sebastian Primpke, Gunnar Gerdts
Microplastics (MP) in sediments from discharge sites for wastewater and deposition sites in deep regions in an urban fjord in Norway were extracted by density separation in a Microplastic Sediment Separator with ZnCl2 . Particles (>11 μm) were identified using FTIR. Twenty different polymer types were identified, at concentrations from 12,000 to 200,000 particles kg-1 dw. Over 95% of the MP were smaller than 100 μm. High deposition of small MP agreed with known areas for organic deposition. Polyurethane acrylate resins dominated the small MP while polyamide fibers dominated the larger MP...
April 2019: Marine Pollution Bulletin
E P Fakan, M I McCormick
Anthropogenic noise can have a negative effect on the physiology and survival of marine fishes. Most research has focused on later life-stages, and few studies have investigated the effects of human-induced noise on embryogenesis. The current study investigated whether playback of motorboat noise affected the embryogenesis of the coral reef damselfishes, Amphiprion melanopus and Acanthochromis polyacanthus. Embryos reared under the playback of boat noise had faster heart rates compared to the ambient reef controls...
April 2019: Marine Pollution Bulletin
Yu-Jia Lin, Ruben H Roa-Ureta, Lotfi Rabaoui, Edwin Mark Grandcourt, Rommel H Maneja, Khaled Al-Abdulkader, Mohammad A Qurban
Epinephelus areolatus and Siganus canaliculatus are two species of fisheries importance associated with vegetated habitats, which are in turn threatened by human activities such as land filling. We tested their associations with vegetated habitats in the Arabian Gulf and examined essential life history traits to infer their vulnerability to the degradation of vegetated habitats. Epinephelus areolatus is found to be more abundant at deeper offshore vegetated habitats, while S. canaliculatus has higher abundance at shallow nearshore habitats...
April 2019: Marine Pollution Bulletin
Mohd Saiful Samsudin, Azman Azid, Saiful Iskandar Khalit, Muhamad Shirwan Abdullah Sani, Fathurrahman Lananan
The prediction models of MWQI in mangrove and estuarine zones were constructed. The 2011-2015 data employed in this study entailed 13 parameters from six monitoring stations in West Malaysia. Spatial discriminant analysis (SDA) had recommended seven significant parameters to develop the MWQI which were DO, TSS, O&G, PO4 , Cd, Cr and Zn. These selected parameters were then used to develop prediction models for the MWQI using artificial neural network (ANN) and multiple linear regressions (MLR). The SDA-ANN model had higher R2 value for training (0...
April 2019: Marine Pollution Bulletin
Tifeng Wang, Peng Jin, Mark L Wells, Charles G Trick, Kunshan Gao
Ocean acidification (OA) has potential to affect marine phytoplankton in ways that are partly understood, but there is less knowledge about how it may alter the coupling to secondary producers. We investigated the effects of OA on phytoplankton primary production, and its trophic transfer to zooplankton in a subtropical eutrophic water (Wuyuan Bay, China) under present day (400 μatm) and projected end-of-century (1000 μatm) pCO2 levels. Net primary production was unaffected, although OA did lead to small decreases in growth rates...
April 2019: Marine Pollution Bulletin
Ferah Kocak, Filiz Kucuksezgin, Ilkin Bakal
Bryozoans are the major component of marine macro-fouling communities. In the study, the relations between bryozoan species and environmental variables were investigated at seven stations along the Aegean coast in August and December 2015. Constant bryozoan species in both sampling periods were Bugula neritina, Amathia verticillata, Shizoporella errata, Cryptosula pallasiana and Celleporaria brunnea. Their relationship with physico-chemical variables (Temperature, salinity, pH, dissolved oxygen, ammonium, nitrite and nitrate nitrogen, orthophosphate phosphorous, total phosphate, chlorophyll-a) were analysed by means of logistic regression analysis...
April 2019: Marine Pollution Bulletin
Yury Zablotski, Sarah B M Kraak
Marine litter is a global concern. Since most of the litter sinks, understanding the composition of benthic marine litter is crucial for addressing this concern. However, high costs of seafloor monitoring inhibit such understanding. Consequently, benthic marine litter in the Baltic Sea has not been comprehensively addressed yet. Here we present data from 2377 hauls, which collected 6828 litter items and 2412 kg on the Baltic seafloor during six years of the Baltic International Trawl Survey (BITS) by seven nations...
April 2019: Marine Pollution Bulletin
T A Shiganova, A S Mikaelyan, S Moncheva, K Stefanova, V K Chasovnikov, S A Mosharov, I N Mosharova, N Slabakova, R Mavrodieva, E Stefanova, D N Zasko, B Dzhurova
The study focuses on the impact of life excretion and mucus released by the "biological pollutants" invasive ctenophore Mnemiopsis leidyi and its predator Beroe ovata on the marine environment and lower trophic levels of the Black Sea ecosystem (bacteria, pico-phytoplankton, nano-autotrophic/heterotrophic flagellates, micro-phytoplankton, chlorophyll a, primary production (PP), micro-zooplankton). The chemical and biological variables were analysed in two sets of lab experiments with natural communities from mesotrophic (Gelendzhik) and eutrophic (Varna) coastal waters...
April 2019: Marine Pollution Bulletin
Alessandro Cau, Andrea Bellodi, Davide Moccia, Antonello Mulas, Cristina Porcu, Antonio Pusceddu, Maria Cristina Follesa
The global plastic economy demands to reduce the flow of plastic into oceans and promote remedial actions for already accumulated seafloor litter. In this perspective, baseline levels of contamination and tools for dating litter items in order to assess the efficacy of those actions, are thus needed. In this note we discuss the utility of introducing the acquisition of shelf-life and labels features from litter items into already established standardized protocols such as the one proposed by MEDiterranean International Trawl Survey (MEDITS)...
April 2019: Marine Pollution Bulletin
Romain David, Maria C Uyarra, Susana Carvalho, Holger Anlauf, Angel Borja, Abigail E Cahill, Laura Carugati, Roberto Danovaro, Aurélien De Jode, Jean-Pierre Feral, Dorian Guillemain, Marco Lo Martire, Laure Thierry De Ville D'Avray, John K Pearman, Anne Chenuil
We investigated the validity of Autonomous Reef Monitoring Structures (ARMS) as monitoring tools for hard bottoms across a wide geographic and environmental range. We deployed 36 ARMS in the northeast Atlantic, northwest Mediterranean, Adriatic and Red Sea at 7-17 m depth. After 12-16 months, community composition was inferred from photographs, in six plate-faces for each ARMS. Overall, we found a highly significant effect of sea region, site (within seas), and plate-face on community composition. Plate-faces thus represent distinct micro-habitats and provide pseudo-replicates, increasing statistical power...
April 2019: Marine Pollution Bulletin
Ma Kristina O Paler, Ma Charisma T Malenab, Jennifer R Maralit, Hildie Maria Nacorda
The Philippines is one of the countries with the highest plastic waste inputs into the ocean yet there is dearth of information on the level of contamination by plastic wastes in local marine ecosystems. This study aims to provide a plastic litter profile in a local beach as an initial report on plastic waste contamination in a typical coast. Likewise, microplastic (MP) occurrence is measured to establish baseline data on MP level. Results showed that, at sampling time, the beach had a high level of plastic contamination...
April 2019: Marine Pollution Bulletin
François X Latrille, Sterling B Tebbett, David R Bellwood
Increased sediment loads within algal turfs, can be highly detrimental to coral reef systems. However, significant knowledge gaps remain in relation to sediment dynamics, especially linking suspended sediments, sedimentation and turf-bound sediments. To examine these links, a series of different methods for quantifying suspended sediments, sedimentation and the accumulation of turf sediments were compared, simultaneously, on an inner-shelf reef. We revealed that the amount and composition of sediment quantified using different methods varied markedly, with commonly employed measures of sedimentation failing to accurately reflect patterns of sediment accumulation in turfs...
April 2019: Marine Pollution Bulletin
Clafy Fernandes, Harshada Kankonkar, Ram Murti Meena, Gilda Menezes, Belle Damodara Shenoy, Rakhee Khandeparker
The beaches of Goa state in India are frequently polluted with tarballs, specifically during pre-monsoon and monsoon seasons. Tarballs contain hydrocarbons, including polycyclic aromatic hydrocarbons, which pose significant environmental risks. Microbes associated with tarballs reportedly possess capabilities to degrade toxic hydrocarbons present in tarballs. In this study, bacterial diversity associated with tarballs from Vagator and Morjim beaches of north Goa was analysed based on V3-V4 regions of 16S rRNA gene sequenced using Illumina Miseq Platform...
April 2019: Marine Pollution Bulletin
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