Can we possibly derive sediment quality guidelines for chemical mixtures?

Invited presentation - Poster Exhibition: Topic 1. Risk Assessment; Problem definition and conceptual model: poster no. 6Organised by European Chemicals Agency (ECHA)published_or_final_versio

Clinical significance of CRNDE transcript variants in glioblastoma multiforme

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Effects of animal size and nutritional status on the RNA/DNA ratio in different tissues of the green-lipped mussel Perna viridis

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Field-based species sensitivity distribution and community sensitivity distribution as alternative ways for field validation of the PNECs derived from laboratory based approaches

Invited talkThe determination of predicted no-effect concentrations (PNECs) and sediment quality guidelines (SQGs) of toxic chemicals in marine sediment is very crucial in ecological risk assessment, sediment quality management (e.g. mud disposal in the sea) and environmental remediation (e.g. dredging of contaminated mud). However, current methods of deriving sediment PNECs are primarily based on toxicity data generated from laboratory ecotoxicity bioassays that are often lack of ecological realism. To tackle this issue, we have developed two novel alternative approaches to scientifically derive site-specific SQGs by utilizing field data of benthic biodiversity and contaminant concentration which are …postprin

Genetic variation of Oratosquilla oratoria (Crustacea: Stomatopoda) across Hong Kong waters elucidated by mitochondrial DNA control region sequences

The population genetic structure of the mantis shrimp, Oratosquilla oratoria, in Hong Kong waters was determined using 923 base pairs of mitochondrial DNA control region sequences. Samples were collected from six localities including the open-waters and sheltered bays in both the eastern and western waters of Hong Kong. Twenty-seven haplotypes were detected in 99 individuals. A high overall haplotype diversity (h=0.886), with a low nucleotide diversity (=0.0026), was observed, and the haplotype minimum spanning network suggested that rapid expansion might have occurred among the total stomatopod population. Genetic homogeneity was observed over a meso-scale distance (80-100km) whilst there were significant genetic differentiations between all pairs of the six samples. Partition of genetic variability based on hydrographic conditions did not reveal significant differentiations between: (1) eastern and western waters; and (2) open-waters and sheltered bays; but showed high levels of variation both within groups and within samples. Unexpectedly, genetic distance did not correlate with hydrographic distance among the samples. Results demonstrated a genetic patchiness pattern of O. oratoria in Hong Kong waters that may be attributable to the interplay between hydrographic conditions (e.g. salinity) and the species' life history traits. Copyright © Marine Biological Association of the United Kingdom 2009.published_or_final_versio

Adsorption and desorption behaviors of selected endocrine disrupting chemicals in simulated gastrointestinal fluids

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Long non-coding RNAs: The key players in glioma pathogenesis

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Tissue-Specific Accumulation of Triphenyltin Compounds in Selected Marine Demersal Fishes of Hong Kong

Human ImpactsPoster presentation: P-84Applications of organotin-based antifouling paints in hulls of sea-going vessels have introduced large amount of these compounds, in particular tributyltin (TBT) and triphenyltin (TPT), into the ocean since the 1960s. These endocrine disrupting compounds have threatened a wide range of marine organisms, including fishes and marine mammals. In spite of the global prohibition of the use of organotins in antifouling paints by the International Maritime Organization in September 2008, there are no restrictions on their production and usage in Mainland China and Hong Kong and thus high concentrations of organotins, especially TPT, are still detected in marine fishes and ...postprin

Seasonality can lower biotic resistance to ascidian invasion in subtropical marine fouling communities

Human ImpactsOral PresentationEnvironmental conditions determine the performance of marine species. Seasonal variation of physicochemical conditions in the environment can modify the intensity of biological interactions within communities, especially in regions with strong seasonality. However, the implications of seasonality for biotic resistance by predation are poorly understood. Here, through the use of experimental recruitment panels and predation exclusion cages, we examine 1) whether the ...postprin

Research highlights from Regional Studies in Marine Science

publisher: Elsevier articletitle: Research highlights from Regional Studies in Marine Science journaltitle: Regional Studies in Marine Science articlelink: http://dx.doi.org/10.1016/j.rsma.2016.05.008 content_type: simple-article copyright: © 2016 Published by Elsevier B.V