Chp.14 Oceans-Life Flashcards
How much percent of the ocean is salinity?
3.5%
What is the difference between Plankton and Nekton?
Nekton can move itself, Plankton can’t.
What is the biggest influence for ocean temperature?
Latitude
What are the main elements in seawater?
Chlorine, Sodium, Sulfate, Magnesium
What is used to establish marine life zones?
Ocean Depth, Distance from shore, Ocean Light
Dentist of seawater is most effected by??
Water Temp., and Salinity
Oceanic Photo Synthetic productivity varies because of?
Seasonal Changes Development of a thermocline
What is most of earths biomass??
Plankton.
Define Benthos.
Bottom Dwelling sea life
Why do high latitude regions lack a thermocline?
The water is isothermal
What is the ATOC experiment? What are the negatives?
A thing where they see the time travel of similar sound signals through the sofar channel now and in the future. It hurts whales.
Does the oceans temperature change rapidly?
No. It has unique Properties.
What is zooplankton?
Zoo=animal plankton=wandering
What is the eupotic zone?
A part of the photic zone where light is strong
What is a Phynocline?
A rapid change in density
Why are there more creatures in the netric zone then the oceanic zone?
There is more light.
Why does a top carnivore benefit more from a food web not a food chain
There are more sustainable food options.
How much of energy is transferred through tropic levels??
About 10%
What are two ways in which primary productivity is accomplished?
Two factors influence a region’s photosynthetic produc- tivity: availability of nutrients (such as nitrates, phosphorus, iron, and silica) and the amount of solar radiation (sunlight).
Why do high latitude waters lack a pyhnocline
Temperature effects density
What 2 areas have HIGH salinity on the earth.
Great Salt Lakes, Dead Sea
How is the ocean layered? What occurs at each of those layers?
Shallow/Surface Mixed Zone, transition mixed zone, deep zone.
SM-uniform temp, vary due to seasons and lat., 2%
T-clines,18%
D-No light, high density, very cold.,
What are the two processes desalination plants use to make drinkable water?
Reverse osmosis, desolation.
What is the relation between density and depth?
The deeper the denser
What are the processes that can affect the salinity of the water?
Evaporation, sea ice, glaciers, run off, precipitation.
What 2 areas have HIGH salinity on the earth.
Great Salt Lakes, Dead Sea
How is the ocean layered? What occurs at each of those layers?
Shallow/Surface Mixed Zone, transition mixed zone, deep zone.
SM-uniform temp, vary due to seasons and lat., 2%
T-clines,18%
D-No light, high density, very cold.,
What are the two processes desalination plants use to make drinkable water?
Reverse osmosis, desolation.
What is the relation between density and depth?
The deeper the denser
What are the processes that can affect the salinity of the water?
Evaporation, sea ice, glaciers, run off, precipitation.
What are the different marine life zones in order?
Uphotic Aphotic ----------- Intertidal Neretic Oceanic ------------- Pelagic Benthic Abyssal
What is primary productivity?
The amount of carbon used by organisms in synthesis.
What climate has the most primary productivity?
Temperate
What is the pelagic zone?
open ocean of any depth.
Name three organisms that are classified as nekton.
Fish, whales, dolphins.
Is a what zone would a whale live in?
Oceanic
What are infauna epifauna
Epi- and animal that lives on the bottom starfish some crabs
In- they dig some crabs moi moi etc
Where is light strongest
Uphotic
What is another name for algae?
Phytoplankton
