Ocean life 3 Flashcards
Why do tide pools experience variation in temperature and salinity?
Heat from the sun causes the temperature of tide pools to increase and also causes evaporation of water from tide pools resulting in increased salinity.
- Kelp forests are primarily located in ________, whereas shallow water coral reefs are primarily located in the _________.
Temperate regions; tropics
How does the Pompeii worm survive the extreme heat of hydrothermal vents?
A layer of insulating bacteria
Since there is no light in the deep-sea environment, the majority of organisms are white in color. True or False
False
All of the following are characteristics of shallow seas except:
They have relatively low biodiversity compared to open oceans
Kelp forests are often found in areas of cold water and nutrient upwelling. Using what you know about ocean circulation and Ekman transport, in which of the following locations would you expect to see kelp forests?
The west coast of Canada
Which of the following is a difference between deep-water fish and shallow-water fish?
Deep water fish have specialized cellular adaptations to compensate for increased pressure
Large whales in the Antarctic were the victims of “sequential overharvesting”. In this phenomenon, which of the following whale species would be targeted last?
Minke
The Exxon Valdez spill of 1989 is the largest oil spill to occur in U.S. waters. True or false
False- 2010 in gulf of mexico
Which of the following describes eutrophication
When extra nutrients from fertilizer runoff or sewage enter the marine environment and cause algal blooms that deplete the dissolved oxygen in the water
A small number of species support the majority of fisheries around the world. Which of the following is NOT one of those species?
Thalassoma bifasciatum
What are the primary responsibilities of the IWC?
Funds whale research
Reviews and revises the measures that govern whaling
Which of the following pairs of countries have overlapping economic exclusion zones for fishing, which has resulted in past disputes over fish stocks?
United Kingdom and Iceland
Which of the following fishing methods would be useful for catching summer flounder (Paralichthys dentatus)?
Trawling
What of the following types of fish are primarily caught through bottom trawling?
Fertilizer run off
the levels of radiation released from the Fukushima reactor currently pose a significant health treat in the waters off California? True or false
false
What percentage of the world’s oceans are not considered to be impacted by human activities?
4%
Which shallow seas habitat has the greatest species richness?
Coral Reef
The term ‘biodiversity hotspots’ refers to areas with high species diversity that are currently protected from human activities? True or false
False
Which physical characteristic is the most dominant determinant of species distribution in the intertidal zone?
Tidal Range
Cold-water corals use symbiosis with photosynthetic algae to produce food. True or false
False
Excessive nutrients from sources such as agricultural runoff are contributing to the growing number of “dead zones.” Dead zones are ________ areas where most marine life cannot survive.
Hypoxic
Approximately how many gallons of oil remained in the environment in 2010 after the Exxon Valdez oil spill?
23,000
Most plastics in the ocean fall into which of the following size classes?
less than 5 mm
Which level of biodiversity refers to the level of diversity within a single species?
Genetic diversity
Which physical characteristic is the most dominant determinant of species distribution in a salt marsh?
Exposure to salt water
