Browsing Proceedings in Marine Biology by Title
Now showing items 1-20 of 75
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2021-10-01ZeitschriftenartikelA morphological comparative approach of different Barnacle species in Gullmarfjord with special focus on the cirripeds As a basis for understanding the sympatric occurrence of the balanomorph Semibalanus balanoides, Bala- nus balanus, Balanus improvisus and the verrucomorph Verruca stroemia in the eulittoral and deepwater in Gullmarfjord, ...
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2021-10-01ZeitschriftenartikelAbiotic factors influencing the orientation behavior of Monodonta lineata In this study we investigate important abiotic factors that may help Monodonta lineata to orient itself in tis natural environment, for example to get into crevices during low tide. To examine these factors, we designed ...
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2021-10-01ZeitschriftenartikelAbundanzen benthisch-kalzifizierender Fora- miniferen und ausgewählter Diatomeen in ver- schiedenen Horizonten des Sediments im Eulito- ral vor List auf Sylt Two different groups of unicellular organisms (diatoms, foraminifers) of the marine benthos in the intertidal of Oddewatt, Sylt were studied with respect to variation of their population density and species composition in ...
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2021-10-01ZeitschriftenartikelAnalysing consumption rate and prey preferences of Carcinus maenas L. (List, Sylt) The recent spreads of Carcinus maenas alongside parts of the worldwide shorelines indicate the importance of further experiments concerning the behavior of this invasive member of the family Portunidae. The natural habitat ...
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2021-10-01ZeitschriftenartikelAnalysis of the turning behaviour of Asteroidea exemplified by Asterias rubens, Marthasterias glacialis, and Crossaster papposus Asteroidea are pentaradial echinoderms with an oral-aboral body axis. The madreporite, situated in the first interradius is connected to the axial complex, the stone canal, and the hydrocoelic canals. Because of the ...
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2023-03ZeitschriftenartikelAnthropogenic disturbance of silt mudflats: A study of effects on populations of Corophium volutator and Peringia ulvae Anthropogenic disturbance is known to be highly influential on ecosystems. Sensitive systems with a high ratio of specialized Fauna and Flora are often more affected than those inhabited with generalists. An example of a ...
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2023-03ZeitschriftenartikelBait testing for the invasive Asian crabs (Hemigrapsus spp.) Hemigrapsus sanguineus and Hemigrapsus takanoi are invasive shore crabs in the German Wadden Sea. The monitoring is an important task to evaluate their impact on the ecosystem. This paper analyzes the preference of Hemigrapsus ...
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2021-10-01ZeitschriftenartikelBarnacle species show unequal propensity for different substrates In the present study we analysed the propensity for certain substrates of the five different barnacles Semibalanus balanoides, Linnaeus (1767), Balanus improvisus, Darwin (1854), Balanus crenatus, Bruguière (1789), Balanus ...
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2021-10-01ZeitschriftenartikelBeutepräferenz bei Marthasterias glacialis (Echi- nodermata, Asteroidea) in Abhängigkeit von individueller Größe und intraspezifischer Konkurrenz Seastars are opportunistic predators that feed on bivalve molluscs and other invertebrates. In a dynamic system like the sublitoral of the rocky shores near Concarneau (South Brittany, France) there are several parameters ...
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2021-10-01ZeitschriftenartikelBiological characterization of a semi-enclosed cove in the Gullmars Fjord, Sweden Species of marine animals and plants are distributed on seashores along physical and chemical gradients. In a cove, these gradients stretch along a horizontal axis. The objective of this study was to document the dis- ...
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2021-10-01ZeitschriftenartikelBiomassen-Spektrum im Gullmarfjord – Eine Methode, zur Analyse eines strandnahen pelagischen Ökosystems A useful appliance in the analysis of the structure of ecosystems is seen in the biomass spectra. It allows a general approach to monitor interactions and changes in a biocenosis. As anthropogenic influences conti- nuously ...
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2021-10-01ZeitschriftenartikelBody size of Pecten maximus (Mollusca, Bivalvia) is nega- tively correlated with frequency of escape response elicited by its predator Asterias rubens Prey and predatior relations are complex and depend on several factors. One of theseis the size difference between predator and prey. The dependence of the frequency of the escape response to the body size difference is ...
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2023-03ZeitschriftenartikelBrown shrimp in the spotlight - can Crangon crangon be conditioned to retrieve food through a visual stimulus? The brown shrimp Crangon crangon is an opportunistic feeder that is widely distributed in the Atlantic Ocean. It has a large pray spectrum and uses ambush tactics while hunting. To explore the possibility of memory and ...
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2023-03ZeitschriftenartikelClassical conditioning of acorn barnacles (Semibalanus balanoides): Chemosensory responsiveness and aversive learning In this study we investigated the ability to associate chemosensory cues with a stressful event in the common acorn barnacle (Semibalanus balanoides). The ecological benefit of associative learning relies on accurate ...
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2023-03ZeitschriftenartikelComparison of biodiversity on four different hard substrate types in the intertidal zone in the Wadden Sea on Sylt, Germany (including a species’ list) Marine intertidal hard substrates provide an ecologically important habitat for many sessile or semi-sessile organisms. As shelter, food source, nursery or living space, they are of central importance in marine ecosy- stems ...
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2021-10-01ZeitschriftenartikelComparison of the Composition of Three Polychaete Communities from different Habitats in the Ecosystem Wadden Sea (List, Sylt) In order to test whether different habitats in the Wadden Sea are characterized by different polychaete communities, we identified all polychaete species from three different habitats in List, Sylt. We chose one habitat ...
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2021-10-01ZeitschriftenartikelConcentrations of plankton and detritus in rock- pools decrease during the low tide period. During a survey between 31.03. and 03.04.2006 on the southern rocky shore of Le Cabellou, Bretagne, we investigated the change in concentration of plankton and detritus in three different rockpools of the mideulittoral ...
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2021-10-01ZeitschriftenartikelDas Vorkommen von Semibalanus balanoides im Kosterfjord ist unabhängig von der Wellenenergie, aber beeinflusst durch die geografische Ausrichtung During a survey in September 2010 in Tjärnö, Sweden, we examined differences in the occurrence of the barnacle Semibalanus balanoides at rocky shores. We sought to proof whether there were differences in the density of S. ...
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2021-10-01ZeitschriftenartikelDer Einfluss von Seepockenbefall auf die Agilität von Littorina littorea In the Wadden sea of Sylt Littorina littorea constitutes a wide spreaded species of snails. Since L. littorea possesses no defence mechanisms against settling by epibionts such as chemical barricades, the periwinkles are ...
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2021-10-01ZeitschriftenartikelDer Einsiedlerkrebs - Ein Tier mit Persönlich- keit? Auswirkungen von Stressfaktoren bei Pa- gurus bernhardus (Crustacea: Decapoda) Personality in animals has been studied on many different species and is based on the observation and inve- stigation of behavioural traits. The common hermit crab, Pagurus bernhardus, indigenous to the mud flats in the ...
