Untersuchungen an Plattfischen und Nordseegarnelen (Crangon crangon) im Eulitoral des Wattenmeeres nach dem Übergang zum Bodenleben
Berghahn, R. (1983). Untersuchungen an Plattfischen und Nordseegarnelen (Crangon crangon) im Eulitoral des Wattenmeeres nach dem Übergang zum Bodenleben. Helgol. Meeresunters. 36(2): 163-181
In: Helgoländer Meeresuntersuchungen. Biologische Anstalt Helgoland: Hamburg. ISSN 0174-3597, more
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| Keywords |
Activity patterns
ANE, Germany, Schleswig-Holstein
Behaviour > Avoidance reactions
Behaviour > Migrations > Feeding migrations
Developmental stages > Juveniles
Environmental effects
Population characteristics > Population density
Topographic features > Landforms > Coastal landforms > Tidal flats
Crangon crangon (Linnaeus, 1758) [WoRMS]; Platichthys flesus (Linnaeus, 1758) [WoRMS]; Pleuronectes platessa Linnaeus, 1758 [WoRMS]; Solea solea (Linnaeus, 1758) [WoRMS]
Schleswig-Holstein [Marine Regions]
Marine/Coastal |
| Abstract |
Studies on flatfish and brown shrimp (Crangon crangon) from tidal flats of the Wadden Sea following their transition to a bottom-dwelling mode of life. In spring and early summer, Pleuronectes platessa, Platichthys flesus, Solea solea , and Crangon crangon transform to benthic postlarvae in the shallow water region of the North Frisian Wadden Sea (eastern North Sea). During the first weeks after metamorphosis, they remain in the puddles and drainage gulleys on the tidal flats that are exposed during low tide. Positive rheotaxis prompting the juveniles to swim against the ebb tide currents is an important mechanism for maintaining their position on the flats. When sunlight intensity increases, they continue their locomotory and feeding activity, even during daytime, in the pools still present at low tide. On warm, cloudless days, temperature levels in these pools may increase to lethal thresholds. |
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