Introduction 2 History of the stock status plots 2 Challenges, improvements and using SSPs 6 Simulations that appear to invalidate SSPs 6 Two real issues: developing and rebuilding stocks 7 Using SSPs: Acceleration of shifts in global stock status 8 Expected SSP performance under various scenarios 10 Open access and regulated fisheries 11 Marine protected areas 13 Increased cost of fishing 13 F...

Histological assessment of the effects of environmental pollutants on marine organisms includes consideration of trends which develop that may link a closely related group of compounds to a representative tissue or organ response. Definition of such a relationship could benefit adjudication of water pollution controversies and, thus, the enforcement of public water pollution laws. Evidence base...

Pelagic ecosystems can become depleted of dissolved oxygen as a result of both natural processes and anthropogenic effects. As dissolved oxygen concentration decreases, energy shifts from macrofauna to microorganisms, which persist in these hypoxic zones. Oxygen-limited regions are rapidly expanding globally; however, patterns of microbial communities associated with dissolved oxygen gradients ...

Definition An invasive, non-native, alien or exotic species is one that has been intentionally or accidentally released into an environment outside its native geographical range of habitat (Olenin et al., 2002). In the UK, according to Eno et al. (1997) the term ‘nonnative’ is used to indicate a species that has been established in UK waters, whilst ‘alien’ species are those that have been intr...

detailed log facies studies of miocene succession in the well rashidpur-04, rashidpur structure, surma basin were carried out by integrating wireline log and limited core sample data in order to reconstruct the paleoenvironments of deposition. based on the analysis of the log motifs, grain size, sand/shale ratio and major change in gamma ray log motifs, two major depositional sequences were ide...

Homer Smith (1930) originally outlined the special osmo-regulatory mechanisms of the marine teleosts; he postulated that these animals continually drink sea water, absorb monovalent ions in the gut and simultaneously excrete excess ions, mainly through the gills, in order to maintain a constant blood concentration lower than that of the external sea water. There have been no reported in vitro t...

Virginia Institute of Marine Science, School of Marine Science, College of William and Mary, Gloucester Point VA 23062, U.S.A. Present address: Smithsonian Environmental Research Center, P.O. Box 28, Edgewater MD 21037, U.S.A. College of William and Mary, Department of Geology, Williamsburg VA 23187, U.S.A. Present address: University of California at Davis, Department of Land, Air and Water Re...

Degradation rates of extracellular DNA determined in marine sediments were much higher than those in the water column. However, due to the high sediment DNA content, turnover times were much shorter in seawater. Results reported here provide new insights into the role of extracellular DNA in P cycling in marine ecosystems.

1 Directorate D—Sustainable Resource, Unit D.02 Water and Marine Resources, European Commission Joint Research Centre, Ispra, Italy, 2 UMR 248 MARBEC, IRD-IREMER-UM-CNRS, Seychelles Fishing Authority (SFA), Victoria, Seychelles, 3 Seychelles Fishing Authority, Mahe, Seychelles, 4 AZTI-Tecnalia, Marine Research Division, Pasaia, Spain, 5 Instituto Español de Oceanografia, Tropical Tuna Fisheries...