Essays about: "salmonid"
Showing result 1 - 5 of 20 essays containing the word salmonid.
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1. A parasitic bivalve affects the interaction between a native and an invasive salmonid
University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskapAbstract : The glochidia larvae of the freshwater pear mussel parasitize on juvenile brown trout during their maturation into tiny mussels. The parasitation has several negative impacts on the trout, one of the less studied being behavioral effects. READ MORE
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2. Evaluation of River Restoration Measures: Interstitial Habitat Variables and Salmon Hatching Rates as Indicators of Success
University essay from Uppsala universitet/Institutionen för biologisk grundutbildning; Uppsala universitet/LimnologiAbstract : River ecosystems are some of the most complex ecosystems on Earth, characterized by a highly heterogenous environment which is able to sustain a disproportionally high level of biodiversity in relation to the area of which they occupy. However, anthropogenic activities are encroaching on the highly diverse riverine landscape, threatening freshwater biodiversity. READ MORE
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3. Evaluating the effects of climate change on Arctic char : including impacts of brown trout competition
University essay from SLU/Dept. of Wildlife, Fish and Environmental StudiesAbstract : Climate change is predicted to increase the average global temperature with 1.5 °C between 2030 and 2052. The areas that are most vulnerable for climate change are the arctic regions. Arctic char (Salvelinus alpinus) is a cold-water salmonid species with the most northern distribution of all freshwater fish species. READ MORE
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4. Potential migration routes for the alien species, pink salmon (Oncorhynchus gorbuscha) : investigating access in west and south coast rivers of Sweden
University essay from SLU/Dept. Of Aquatic ResourcesAbstract : Invasive alien species are one of the main drivers of ecosystem change globally, presenting challenges to biodiversity that take many forms Pink salmon, Oncorhynchus gorbuscha, has recently been observed on the Swedish west coast where its presence is the result of secondary spreading from populations introduced to the White and Barents Seas in northwestern Russia. In Sweden, O. READ MORE
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5. Effects of summer peaks on brown trout and Atlantic salmon growth and survival in hydropower-regulated Gullspång River
University essay from Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)Abstract : Daily demands for electrical power are met through sub-daily release of turbined water in the form of hydropeaking. Hydropeaking’s changes to stream flow are listed as a threat to biodiversity in river ecosystems as it causes rapid habitat alteration such as increased depth and velocity, affecting the species living downstream. READ MORE