what is the group of harvested species
fishes
what is the technical term for fishes
finfish
what is the second largest group of harvested species
shellfish
Where are the best fishing grounds located
photic zone near the coast
where are the two places where the fishing grounds are especially rich
upwellings, wide continental shelf
Where are the two major areas that are rich in food resources
North Pole, Antarctic
What type of fish are use by industrial fisheries (fish meal, margarine, cosmetics, paints, pet food)
clupeoid
how are bottom dwellers caught
trawls
how are small schools of fish caught
purse seign
what are the most common type of clupeid fishes
anchovies, sardines, herrings, menhaden, shad
what are the largest group of commercial fishes species
tuna
How are tuna usually caught
longlines
What is overfishing
when fisheries catch the exceeded quanity that keeps the population from being able to reproduce to the population will not shrink
What is by-catch
capturing an untargeted species of fish
what are some practices fisheries use to try to preserve the fish populations
the only harvest during a certain time of the year, regulate the age, sex, and size of fish, only certain methods can be used, reserves where no harvesting can occur
what is an exclusive economic zone
an offshore area belonging exclusively to the geographically bordering country
in what system is the environment is completely controlled by the farmer
closed mariculture
What is seeding
the process of growing a species to a certain age then releasing them to enhance the natural population
Name 4 nonliving parts of the ocean
oil, energy, minerals, water
how can dissolved substances be removed from the ocean
distillation, reverse osmosis
small plankton eating fishes that travel in large schools
clupeoid fishes
bottom dwelling fish
gadoid fishes
resources that can naturally replace harvest numbers
renewable resources
resources that are not capable of replacing harvest numbers
nonrenewable resources
the number of individuals in a population that can be caught without reducing the size of the population or letting it grow
sustainable yeild
the farming and harvesting of marine aquaculture and brackish water organisms
mariculture
the process of removing salt from seawater
desalination