Auflistung Institut für Biologie nach Titel
Anzeige der Publikationen 8-27 von 82
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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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2024-03-27ZeitschriftenartikelBiodiversity survey of marine Gastropoda of Helgoland Marine Gastropoda and their distribution around the island of Helgoland (North Sea) were studied at two different locations; the intertidal zone of the northeastern rocky shore and the so-called Tiefe Rinne, a depression ...
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2024-03-27ZeitschriftenartikelBiodiversity survey of marine invertebrates of Helgoland: Anthozoa (Cnidaria) Global warming, pollution and other anthropogenic influences severely affect species richness and alter community structure and composition of marine environments globally. To better understand how marine invertebrate ...
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2024-03-27ZeitschriftenartikelBiodiversity survey of marine invertebrates of Helgoland: Polychaeta To investigate the species diversity of polychaetes on Helgoland, we collected samples from a total of three different locations including rocky shore intertidal, the subtidal „Tiefe Rinne“ and plankton samples in the open ...
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2024-03-27ZeitschriftenartikelBiodiversity survey of marine invertebrates of Heligoland: The subphylum “Crustacea” The subphylum Crustacea is characterized by a huge range of morphological, developmental, and adaptive diversity across virtually all marine, freshwater, and various terrestrial habitats. They are very abundant on North ...
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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 ...
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2021-10-01ZeitschriftenartikelDie Schalenmorphologie von Patella spp. an der bretonischen Atlantikküste ist standortabhängig In dieser Studie wurde untersucht, in wieweit die Schalenmorphologie der Napfschneckenarten Patella depressa und Patella vulgata je nach Standort variiert. Dazu wurden an einem Standort an der bretonischen Atlantikküste ...
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2021-10-01ZeitschriftenartikelDifferences of the phyto- and zooplakton population in water samples taken from two different depths in the Gullmarsfjord This field study examines the differences in phyto- and zooplankton in different depths in the water body of the Gullmarfjord. The Fjord is located at the west coast of Sweden and is fed by the waters of the Skagerrak, the ...