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Andersen, Valérie; Sardou, Jacques (1992): Distribution of macrozooplankton at time series station MIGZOO-1. PANGAEA, https://doi.org/10.1594/PANGAEA.758053, Supplement to: Andersen, V; Sardou, J (1992): The diel migrations and vertical distributions of zooplankton and micronekton in the Northwestern Mediterranean Sea. 1. Euphausiids, mysids, decapods and fishes. Journal of Plankton Research, 14(8), 1129-1154, https://doi.org/10.1093/plankt/14.8.1129

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Abstract:
Vertical distributions and diel migrations of the main species of micronekton, four euphausiids, one mysid, one decapod and three fishes, were described in detail in the 0-1000 m water column on a fixed station in the Northwestern Mediterranean Sea. The euphausiids Euphausia krohni and Thysanopoda aequalis, the decapod Gennadas elegans and, to a lesser extent, the fish Argyropelecus hemigymnus were shown to perform clear diel vertical migrations. Results of horizontal hauls at a given depth around sunrise and sunset showed a marked diurnal symmetry of the migratory cycles, particularly for E.krohni, T.aequalis and G.elegans. The behaviour of the euphausiid Nematoscelis megalops was more complex: it presented a repetitive bimodal day distribution and only part of its population migrated. As very weak or non-migrators we found the euphausiid Stylocheiron longicorne and the bathypelagic mysid Eucopia unguiculata, for which migration concerned only some of the older individuals. The fishes Cyclothone braueri and Cyclothone pygmaea appeared to be non-migrants. As depth increased, C.braueri was replaced by C.pygmaea, with maximum concentrations at 350-550 and 550-700 m depth, respectively.
Coverage:
Latitude: 43.400000 * Longitude: 7.866667
Date/Time Start: 1990-05-02T00:00:00 * Date/Time End: 1990-05-10T23:59:00
Event(s):
MIGZOO-1 * Latitude: 43.400000 * Longitude: 7.866667 * Date/Time Start: 1990-05-02T00:00:00 * Date/Time End: 1990-05-10T23:59:00 * Campaign: MIGZOO-1 * Basis: Georges Petit * Method/Device: Net (NET)
Size:
4 datasets

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