Assignment 1

Question 1

What were the global Capture and Aquaculture trends of 2012? (Between inland and marine)

Answer 1

Capture dominated with 79.7/91 million tonnes in marine environments.
Aquaculture was less, with 41/66 million produced in inland waters.

Question 2

In general terms, how does China compare to world marine capture, aquaculture, and planticulture?

Answer 2

Marine Capture: China is 1/4 of global capture.

Aquaculture: China is 2/3 global production

Plants: China is approx. half the global plant production

Question 3

how does Canada impact global aquaculture trends?

Answer 3

It doesn’t. It only contributes 1.75% of all aquaculture produced. Currently Canada produces 1.6 million tonnes.

Question 4

What are the three largest AQUACULTURE species, and what is their approx. tonnage?

Answer 4

• Freshwater fishes: 37 million
• Marine fishes: 23 million
• Molluscs: 15 million

Question 5

What are the three largest CAPTURE species and their approx. tonnages?

Answer 5

• Marine fishes: 65.5 million
• FW fishes: 10 million
• Molluscs: 6.9 million

Question 6

When comparing global aquaculture in all environments, what are the 3 most dominant species groups?

Answer 6

Fin fish: 44 million (dominant)
Aquatic plants: 23 million
Molluscs: 15 million

Question 7

When considering strictly marine aquaculture environments, which species groups are the most prominent?

Answer 7

Aquatic plants: 22.9 million
Mollusc: 14.8 million
Fishes (marine + diadromous) split 2.6, 1.6 million

Question 8

when considering strictly FW environments, which species groups are the most prominent?

Answer 8

FW fishes dominates (36 million tonnes), followed by Crustaceans (2.5 million)

Question 9

When considering brackishwater environments, which species groups are prominent?

Answer 9

Crustaceans: 32 million
(over 50%)

then diadromous, fw, and misc. aquatic species are split evenly at ~ 13%.

Question 10

excluding aquatic plants, which are the most prominent species groups in inland and marine environments?

Answer 10

Fin fish (dominate), then molluscs (1/4) and crustaceans.

Question 11

which are the highest ranking countries for marine capture fisheries?

Answer 11

China (of course), Indo, USA Peru, Russia, Japan

Question 12

name species for different trophic levels

Answer 12

1: phytoplankton
2: oysters, zooplankton
3: herring, anchovy
4: salmon, halibut
5: tuna, shark