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Characterizing the pelagic fish assemblage in Lake Paanajärvi : scarce stocks and large individuals
The structure of fish stocks in the pelagic areas of Paanajärvi, a deep northern lake in a natural state, was characterized by means of echo surveys and test fishing in 1992-1994. The pelagic fish densities were in general relatively large
, their size distribution resembling more that of pelagic areas in practically unfished natural lakes than that of exploited lakes. The structure of the pelagic fish assemblage in Paanajärvi stresses the importance of nature conservation as means of evaluating

Alpine ocean seafloor spreading and onset of pelagic sedimentation : new radiolarian data from the Chenaillet-Montgenèvre ophiolite (French-Italian Alps)
pelagic sedimentation, or more likely that the Lago Nero-Replatte and the Chenaillet s.s. thrust sheets are distinct and distant pieces of lithosphere. These results strengthen the Bathonian correlation of widespread seafloor spreading in both western

Source areas and transport mechanisms for freshwater and brackish-water diatoms deposited in pelagic sediments of the equatorial Atlantic

14C offsets and apparently non-synchronous 18O stratigraphies between nannofossil and foraminiferal pelagic carbonates

Holocene rates of sediment accumulative, in the Panama basin, eastern equatorial Pacific. Pelagic sedimentation and lateral transport

Alcuni aspetti della pellagra

Inverted structures in Western Sicily

Examples of Late Miocene fault reactivation, observed in Western Sicily, are illustrated. Reactivation consists of positively inverted Mesozoic structures may be identified as the weakness zones of the hinge between carbonate platforms and pelagic

biology of the species is described. The seasonal distribution and demographic structure of the Possession Island's population is described. As an extreme K-strategist, the Sooty Albatross appears to be remarkably adapted to exploit the pelagic resources

The mass accumulation and grain size of the total eolian component isolated from pelagic sediment in two North Pacific cores have been used to evaluate changes in the intensity of atmospheric circulation and source-area aridity over the past 700,000

Regional distributions of tephra deposits within Upper Quaternary pelagic sediments of the eastern Mediterranean and southern Aegean Seas have been determined from cores of deep-sea sediments. Slumping or other mass-wasting processes on the sea

The design and methodology of a new model of epibenthos trawling is described. The array of catch obtained is compared with commercial trawl in the same point. 162 species are analysed in functional groups, 6 of each were pelagic species.

-to Submediterranean benthic vegetation exists also in Adriatic bottoms. Four different types of coastal zonations are registered: widespread mesic of E. Adriatic, xeric one in dry pelagic isles, humid one in SE. coast, and a special stormy one in NE. coast exposed

Atlantic Ocean ; Bacterioplankton ; Bay of Biscay ; Biogeochemical cycle ; Biomass ; Fauna ; Marine environment ; Meiofauna ; Microfauna ; North Atlantic ; Pelagic zone ; Phytoplankton ; Seasonal variation ; Spring(season) ; Trophic chain
Characteristics of the pelagic ecosystem of the French bay of Biscay submitted to the influence of the Gironde dilution plume were defined, in spring, taking into account the structure and magnitude of both microplanktonic stocks and dynamics

Thème III : l'organisation des transports

siliciclastic-carbonate Pseudoverrucano successions argues for a coastal sedimentation on narrow shelves delimited by active, fault-bounded highs, representing the landward extension of the epicontinental/pericontinental pelagic basins that from late Triassic

A detailed study has been carried out, integrating biostratigraphy, sedimentology and physical stratigraphy, on Albian-Eocene pelagic sediments (Hybla and Amerillo formations) of the western sector of Rocca Busambra (Trapanese Domain, Western Sicily

by the dispersal of pelagic larvae. Models of marine population dynamics must account for larval connectivity. To allow more informed decision making when complete information on dispersal is lacking, the AA. have developed a method based on geographic information

gravité, alors que dans les zones décrochantes cette accumulation de fluides n'a pas pu se produire. Celles-ci ont donc constitué un bloc parfaitement homogène ne laissant aucune prise au pelage gravitationnel.

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