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Bath, United Kingdom

Desprez M.,University of Rouen | Pearce B.,Marine Ecological Surveys Ltd | Le Bot S.,University of Rouen
ICES Journal of Marine Science

The study investigates the physical impact of sediment deposition associated with aggregate dredging at a site off Dieppe, and the consequences for benthic fauna. Sampling stations were sited across potential zones of impact classified as high, moderate, and low deposition, depending on their proximity to dredging activities and their position relative to the net sediment transport route. Samples were also taken west of the dredge site outside the zone of likely impact (no deposition). A strong gradient was observed from the sediments dominated by fine sands in the high and moderate deposition zones, through to coarse sands and gravels in the low and no deposition zones. The benthic fauna sampled from the deposits of fine sand in the high and moderate deposition zones were sparse compared with the coarser deposits sampled from the low and no deposition zones. There was a strong correspondence between the distribution of different sediment fractions and the associated benthic fauna, with a weighted Spearman rank correlation of 0.638, higher than reported in related studies. This suggests that in deposition areas such as this, biological interactions play a less important role in shaping communities than the changes in the physical environment, which may have a greater impact on the biological communities. © 2009 International Council for the Exploration of the Sea. Published by Oxford Journals. All rights reserved. Source

Wasson B.,Marine Ecological Surveys Ltd | Nunez J.,University of La Laguna
Marine Biodiversity Records

Rullierinereis ancornunezi is recorded for the first time from British waters. Specimens were discovered at two sites: Near the Isles of Scilly at the extreme south-west of the country and near the Isle of Wight in the English Channel. © Marine Biological Association of the United Kingdom 2013. Source

Hatton J.,Marine Ecological Surveys Ltd | Pearce B.,Gardline Caledonia Ltd
Marine Biodiversity Records

Boccardia proboscidea is recorded for the first time in UK waters. Specimens were discovered at two intertidal sites on the Isle of Skye. © Marine Biological Association of the United Kingdom 2013. Source

Delduca E.,Marine Ecological Surveys Ltd
Marine Biodiversity Records

Cauloramphus spinifer, a cheilostome bryozoan, was found in samples from the Humber Regional Environmental Characterization survey in the North Sea. These records, at a maximum depth of 53.1 m, significantly increase the known depth-range for this species. Copyright © Marine Biological Association of the United Kingdom 2011. Source

La Porta B.,European Commission - Joint Research Center Ispra | Tomassetti P.,European Commission - Joint Research Center Ispra | Lomiri S.,European Commission - Joint Research Center Ispra | Marzialetti S.,Marine Ecological Surveys Ltd | And 4 more authors.
Italian Journal of Zoology

Data from several research and monitoring projects carried out between 1999 and 2009, for a total of 26 study areas located along the Italian continental shelf (Mediterranean Sea), were extracted from ISPRA's data set, to revise and update the existing information on the ecology and spatial distribution of 20 selected soft-sediment polychaete species. The species were selected taking into account their spatial distribution and ecological role in the benthic assemblages and the existence of voucher specimens deposited in ISPRA's reference collection. Samplings were taken at 872 stations on soft sediments, at depths ranging from 1 to 155 m. Surface sediment composition data were available at each site. The number of specimens from the selected species was extracted at each site, and relative abundance (%)calculated. The spatial distribution of each species was investigated according to the biogeographical zones identified in the Italian Seas. The distribution of five species (Aponuphis bilineata, A. brementi, A. fauveli, Nothria conchylega, and Onuphis eremita) was updated. Several species that were previously considered to be characteristic of a specific biocenosis, sensu Pérès & Picard (1964), e.g. Diopatra neapolitana, Ditrupa arietina, Notria conchylega and Sternaspis scutata, were found to be distributed over a wider bathymetric and granulometric range of surface sediments. Indicator Species Analysis highlights that the distribution of 17 selected species depends on definite granulometric characteristics of the sediment. This new relevant information outlines the important contribution of environmental monitoring programmes to scientific knowledge. © 2011 Unione Zoologica Italiana. Source

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