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How does temperature affect energy metabolism of bivalves ? 


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Temperature has a significant impact on the energy metabolism of bivalves. Increased water temperature can lead to changes in metabolic processes, such as a decrease in total protein and glycogen content in gills . It can also result in an increase in metabolic rate, oxygen consumption, and filtration rate . However, prolonged exposure to high temperatures can lead to the exhaustion of energy resources, affecting key biological processes like growth and reproduction . In marine habitats, warming combined with other factors like ocean acidification can affect the energy metabolism of bivalves. For example, Mytilus edulis from the Gulf of Maine showed metabolic resilience to moderate ocean acidification but were responsive to warming, as seen in changes in metabolic rate, energy reserves, and enzyme activities . King scallops exposed to warming, hypercapnia, and hypoxia showed changes in mitochondrial energy metabolism, with the most significant effects observed under combined exposure to all three drivers .

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The paper states that an increase in temperature (5°C) led to a 2-3-fold increase in standard metabolic rate (SMR) in mussels, indicating a strong temperature effect on energy metabolism.
The paper states that temperature has a strong effect on the metabolism of blue mussels, with a 2-3-fold increase in standard metabolic rate (SMR) when exposed to a 5°C increase in temperature.
The paper does not directly address how temperature affects energy metabolism of bivalves.
The paper states that an increase in water temperature leads to changes in metabolic processes in bivalves, including a decrease in total protein and glycogen content. It also mentions that high temperatures result in increased activity of LDHase and decreased activity of K+/Na+-ATPase.

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How does climate change affect marine life?5 answersClimate change has significant impacts on marine life and ecosystems. Rising sea surface temperatures, ocean acidification, and changing physical and chemical parameters are altering biological processes, food web structure, and ecosystem dynamics. These changes affect marine populations and ecosystems at all levels of organization, leading to potential disruptions in fish stocks, migration patterns, and the health of marine species. Additionally, climate change can result in the degradation of coral reefs and shellfish due to ocean acidification, impacting both tropical coral reef ecosystems and the shellfish aquaculture industry. The warming of the oceans can also lead to more intense seasonal rainfall, causing immense sedimentary systems and muddy waters in the depths of oceans, making them uninhabitable for most marine species. Overall, climate change poses a significant threat to marine life and requires adaptations in marine management, conservation, and governance to mitigate its effects.
What substrate affinitie scan bivalves have?4 answersBivalves have affinities for soft substrates, such as those found in the Swan Estuary. They are suitable as biological indicators because they respond to changing environmental conditions. The bivalve community and populations in the Swan Estuary have shown significant changes over time. Relationships have been found between bivalve distribution, abundance, and biomass, and major environmental conditions in the estuary, such as nutrient enrichment and changes in hydrology. Bivalves also demonstrate a causal relationship to the toxicity of chromium. The ease of sampling, abundance, and widespread distribution of bivalves make them potential biological indicators within the Swan Estuary.
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How does temperature affect fish respiration?5 answersTemperature has a significant impact on fish respiration. Fish exposed to cold water experience a decrease in metabolic rates due to the effects of temperature on biochemical reactions. The respiratory metabolism of fish, such as the snakehead (Channa argus), is positively correlated with temperature, with resting metabolic rate (RMR) increasing as temperature rises. The thermal metabolic sensitivity of fish can vary depending on the temperature range, as indicated by the V-shaped Q10 values change in RMR. Acclimation to chronic temperature changes can reduce the metabolic thermal sensitivity of fish. Additionally, the regulation of ventilation frequency (VF) alone may not be sufficient to meet the oxygen demand of fish as temperature increases. Cold acclimation can lead to compensation in VF to maintain oxygen supply. Overall, temperature plays a crucial role in fish respiration, affecting metabolic rates and oxygen demand.

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