Marine Resources Flashcards
1
Q
Driftnet fisheries includes ___-___ species such as leatherback turtles
A
non-target
2
Q
What are 2 main consequences of trawling
A
- ploughs the seafloor, flattening it out (ruins habitats)
- causes sediment dispersal
3
Q
compensation catches=
A
a change in the species type being caught b/c one species is overfished
4
Q
give 2 examples of compensation catches
A
- sailfish and swordfish for blue marlin
- jellyfish for shrimp
5
Q
renewable marine energy resources include:
i
ii
iii
A
i. wind farms (turbines in water)
ii. waves
iii. tide generators (on estuaries)
6
Q
gas hydrates (methyl hydrates) occur where pressure is ___
A
high
7
Q
phosphate, metal sulfides, manganese nodules, and copper are all example of __ ___ mining
A
deep sea
8
Q
chemical resources from the ocean include (2)
A
- salt
- drugs (marine natural products)
9
Q
____ extracted from harvested sponges are replicated to produce commercial antiviral compounds
A
purines
