Sökning: "Carcinus maenas"
Hittade 4 uppsatser innehållade orden Carcinus maenas.
1. Feeding Behaviour in Loggerhead Sea Turtles (Caretta caretta) : Collection of Movement Data Representative of Feeding Events
Master-uppsats, Linköpings universitet/Institutionen för fysik, kemi och biologiSammanfattning : With the different threats sea turtles are currently facing, such as habitat reduction and pollution, increase of fishing and harvesting of aquatic resources by Humans, or invasive species, it is important to learn as much as possible about their biology and behaviour in order to ensure the success of conservation programs. In this study, loggerhead sea turtles (Caretta caretta) feeding behaviour duration as well as energy expenditure approximation during a feeding event were tested and compared using two different types of food: green shore crabs (Carcinus maenas) or Japanese clam (Ruditapes phillipinarum) or Venus clams (Chamelea gallina). LÄS MER
2. Can the native shore crabs (Carcinus maenas) become a barrier to the invasion of the round goby (Neogobius melanostomus) in Öresund, southern Baltic Sea?
Master-uppsats, Lunds universitet/Examensarbeten i biologiSammanfattning : The round goby (Neogobius melanostomus) is a non-indigenous species to the Baltic Sea that has drawn the attention of many researchers in the last decade due to its rapid spreading and its impact on the local fauna. With recent concerns about the dispersal of the round goby towards the North Sea, the aim of this study was to determine if the native shore crab could compete with the invaders and prevent their advance. LÄS MER
3. Causes of trends in abundance of mesopredators in the Kattegat Sea
Master-uppsats, SLU/Dept. Of Aquatic ResourcesSammanfattning : It has come to attention that there is a mesopredator release effect present in the Kattegat Sea (northern Europe, between Sweden and Denmark). The areas in focus here are Ringhals, a nuclear power plant zone, and Vendelsöarna, a undisturbed reference area. LÄS MER
4. Phenotypic plasticity of blue mussels under threat from different predators
Master-uppsats, Uppsala universitet/Institutionen för biologisk grundutbildningSammanfattning : My study confirms that there are phenotypic plastic traits in blue mussels (Mytilus edulis) inresponse to predatory pressure from shore crabs (Carcinus maenas) and sea stars (Asteriasrubens) and a combination of them. Blue mussels can sense predators by olfactory cues fromthe predators themselves, or by alarm cues from attacked conspecifics, and then developinducible defences. LÄS MER
