PEA - Statistics

Question 1

Production

Answer 1

The FAO identifies 622 species produced by aquaculture

Question 2

Future growth

Answer 2

The latest UN projections suggest that the world’s population could grow to around 8.5 billion in 2030

Question 3

Fish use

consumption, remaining

Answer 3

In 2012, about 81% of fish produced was used directly for human consumption. 75% of the remaining fish was used for fishmeal and fish oils

Question 4

What are 2 facts about biophysical factors?

temp, ph

Answer 4

1.Coldwater species will not tolerate temperatures above 20 to 25 degrees-C. Warmwater species will not grow at temperatures below 10 to 15 degrees-C
2.Fish survive and grow best in waters with a pH between 6-9. At values below 4.5 or above 10, mortalities occur.

Question 5

What are 2 facts about ecological factors?

In 2012, legal frameworks, global shrimp industry, disease

Answer 5

1. In 2012. 98% of FAO members reported aquaculture practices within their country. However, only 40% has legal frameworks in place
2. The global shrimp industry is estimated to lose around 40% of production to diseases

Question 6

What are 2 facts about economic factors?

directly, exports

Answer 6

1. Over 36 million people are employed directly through aquaculture, and 200 million people derive direct and indirect income from fish
2. In 2020, exports of shrimps and prawns were worth USD 24.7 billion.

Question 7

What are 2 facts about socio-cultural factors?

protein, lifdc

Answer 7

1. High-protein foods are most popular in North America and Europe, and are found least in sub-Saharan Africa and Asia
2. Of the 34 countries where fish contribute more than one-third of total animal protein supply, 18 are Low Income Food Deficit Countries FAO

Question 8

What are 2 facts about technological factors?

traits, engineered

Answer 8

1. Selective breeding has substantially improved traits of commercial importance in over 60 aquaculture species
   2.Researchers in Cuba and the UK have engineered tilapia to grow and put on weight up to 300% faster

Question 9

Organisational

schemes

Answer 9

Approximately 30-50 aquaculture certification schemes (such as GlobalGAP, ASC, BAP) exist, driven by North American and Western European market demand.

Question 10

Political

i, tilapia

Answer 10

Following USA discussions about removing 25% tariffs on tilapia and other goods, tilipia prices in China have fallen by 30% as of August 2022

Question 11

Negative ecological

eut

Answer 11

nearly 1000 areas around the world have been identified as having experienced the effects of eutrophication

Question 12

Unsustainable

From 1974 to 2017

Answer 12

The proportion of stocks fished at unsustainable levels have increased, up from 10% in 1974 to 34.2% in 2017

FAO

Question 13

Freshwater (ecological)

fresh

Answer 13

Freshwater ecosystems (rivers, lakes, and wetlands) cover less than 1 percent of the earth’s surface, but are home to 51% of all fish species

Question 14

Pos ecological

Answer 14

An acre of kelp can produces 2000 gallons of ethanol, five times as much as corn. It can also be used in kelp-based organic fertilisers
Oysters/filter feeders as indicators of estuarine health, erosional shore buffers

Question 15

Sociocultural diet

Answer 15

13 to 20 percent protein, fat ranging from less than 1 to more than 20 percent

Question 16

Climate change

Answer 16

Climate change is occurring 20x faster after than the ice age

Question 17

Arable

Answer 17

Earth has lost a third of arable land in the past 40 years