reading Flashcards
Helmuth 1998
Limpets (patella vulgata) growing on the upper shore have a smaller foot and grow taller - avoid heat loss and desiccation
Lower shore limpets are flatter and wider
Howard et al. 2017
Anthropogenic degradation of marine ecosystems is leading to CO2 uptake by photosynthesis to decrease
Laverock et al. 2011
Bioturbation releases 80% of nitrogen needed for photosynthesis in estuaries
Sumich 1996
Oysters and mussels close their shells at low tide to avoid unfavourable conditions
Deng et al. 2010
Antifreeze proteins arose from duplication of sialic acid synthase (SAS-B) gene
Kiko et al. 2010
Antifreeze proteins bind to ice crystals in cells to prevent growth
Aronson et al. 2007
Warming sea temperature -> King crabs migrating into Antarctica
Rate of living theory
Higher metabolism -> shorter life as toxic metabolites accumulate
Gigantism in polar regions due to low metabolic rate?
Baco and Smith 2003
Whale fall carcasses = hard substrate on deep sea floor
High biodiversity
8km apart - link benthic communities
Dover et al. 2002
400 species described from hydrothermal vents
Pauly et al. 1998
Fishing down the food web
Average trophic level of fish catches is decreasing
Vermeij et al. 2010
Studied simple cilia on coral larvae + detailed how they detect sound waves in the sea to aid navigation
Simpson et al. 2011
Studied antennae on copepods - more complex sound-detecting organs
Kim et al. 2014
Increased anthropogenic emissions -> increased [nitrate] in upper oceans
- Most detectable in near-shore environments
Hinder et al. 2012
Since 2006 dinoflagellate abundance has decreased and diatom abundance has increased
- Due to increased sea temperature
- Largest regional change in the North Sea
Diatoms associated with more turbulent conditions
- Climate change -> more windy conditions -> kinetic energy of sea increases
Boyd et al. 2015
Surface nitrate concentrations predicted to decline globally due to climate change increasing stratification
- Most prominent in the subtropical and tropical Pacific
Moore et al. 2013
Different nutrients needed for different processes - which should be prioritised when trying to mitigate climate change?
Wong et al. 2011
Habitats with hard emergent or biogenic structures have higher secondary production than those lacking substrate
- Oyster reef = highest secondary production/area
Beaugrand et al 2002
Changes in zooplankton assemblages = indicator for whole ecosystem changes
- Significant poleward shift for all species
Genner et al. 2010
Spring spawning reproductive phenology dependent on November-December temperature
- Cooler -> earlier winter migration -> earlier maturation -> earlier spawning
- Warmer -> later winter migration -> later maturation -> later spawning
Summer spawning reproductive phenology dependent on March temperature
- Warmer -> faster development -> earlier spawning
Flounder in estuaries migrate offshore to reproduce
- Warm year -> later migration -> later spawning