The mechanisation of farming and commercial fishing to provide food by Mrs H Garcia

GROUP C: COMMERCIAL FARMING - FELIX

h_garcia — 2021-02-26 09:42:08 UTC

GROUP A: SUBSISTENCE FARMING - Scarlette

h_garcia — 2021-02-26 09:42:08 UTC

GROUP D: IMPACTS OF COMMERCIAL FARMING - LUCY

h_garcia — 2021-02-26 09:42:08 UTC

GROUP E: COMMERCIAL FISHING - ZOE

h_garcia — 2021-02-26 09:42:08 UTC

GROUP G: FISH FARMS AND THEIR IMPACTS - PADDY

h_garcia — 2021-02-26 09:42:08 UTC

GROUP B: MECHANISATION - HUW

h_garcia — 2021-03-01 12:12:10 UTC

1. What is commercial fishing?

2021-03-02 10:13:32 UTC

The taking of fish and other seafood and resources from oceans, rivers, and lakes for the purpose of marketing them. (To sell for profit). This occurred as a way to meet commercial demand for fish worldwide.

2. Describe 3 features of subsistence farming

2021-03-02 10:21:44 UTC

-Little to no yield for sale

-Limited use of agrochemicals like pesticides and fertilisers

-Relatively cheap to start up and maintain

What two main types of fish farms are there?

2021-03-02 10:21:51 UTC

Marine and freshwater

1. Definition of Subsistence Farming:

2021-03-02 10:21:51 UTC

Farming for your own welfare. No yield for sale. farming for you and your family only, not selling for profit.

2. How do fishermen use explosives and what is the impact?

2021-03-02 10:21:57 UTC

Using explosives can damage not only the fish but the ecosystems around it. For every fish caught using this technique a square metre of coral reef is destroyed

3. Is this a sustainable method of farming?

2021-03-02 10:22:47 UTC

Yes, They use handheld tools rather than machienery

1. Definitions:

2021-03-02 10:23:12 UTC

Herbicide- a substance that is toxic to plants, used to destroy unwanted vegetation.
Pesticide- a substance used for destroying incests or other organisms harmful to cultivated plans or to animals.
Leaching- a process in soils where minerals are washed away by water (usually rain)

2. What is the problem of overfishing. What is a vacuuship?

josephharris24 — 2021-03-02 10:23:19 UTC

The problem is that more fish are being caught then are replaced therefore many species are going extinct. This can upset the balance of an ecosystem. A vacuuship is a ship which plays music to lure fish and then sucks them up a vacuum pipe

1. Definition of commercial farming:

2021-03-02 10:25:20 UTC

This is when crops are grow and produced to be sold to make a profit not to feed livestock.

2. What is intensive farming?

2021-03-02 10:29:25 UTC

Intensive farming in farming that uses large amounts of machinery, chemicals or labour to maximise that amount of food produced.

3a. What would happen if lots of secondary consumers were caught?

2021-03-02 10:29:32 UTC

If loads of secondary consumers were caught then tertiary and quaternary consumers wouldn't be able to eat.

3. What does by-catch mean? How have quotas caused problems?

2021-03-02 10:29:37 UTC

By-catch means the unwanted fish that are accidentally pulled up with the other fish by fisherman. This causes problems if the quota only allows one species to be caught.

1. Definition of mechanisation and when the mechanisation of agriculture happened in ACs:

2021-03-02 10:30:51 UTC

The process of using agricultural machinery to mechanise the work of agriculture, greatly increasing farm worker productivity. It came to Ac’s during the Industrial Revolution.

3b. What would happen if lots of quaternary consumers were caught?

2021-03-02 10:34:32 UTC

The food chain would go out of control with too many tertiary consumers.

4. Examples of advanced tech:

2021-03-02 10:35:42 UTC

GPS

Milking parlours

Drones

2. How these technologies assist in commercial farming today

2021-03-02 10:39:53 UTC

Use of more advanced technologies and the mechanisation of farming in EDC’s and AC’S increased productivity and efficiency, this also helps the global supply chain to respond to global demand.

3. The 4 big impacts from commercial farming...

2021-03-02 10:40:43 UTC

1) Lack of biodiversity due to only growing a single crop because the ecosystem has less variety of plants, insect’s and animals.

2) Soil nutrients are lost through over-farming and are drained away by water in a process called leaching.

3) Herbicides and Pesticides, and fertilisers, pollute the soil and water sources, and get into the food chain.

4) Soil erosion increases as more land is exposed to the wind and rain, especially just after harvesting.

3. What machines / tech could help subsistence farmers in LIDCs and EDCs?

2021-03-02 16:12:49 UTC

Tractors- east ploughing

Combine Harvesters- easy harvests

Wheat grinders- easy processing

2. What are some of the problems of fish farms?

h_garcia — 2021-03-09 10:18:29 UTC

Pollution- waste from fish pollutes water

Disease- fish in low proximity increases risk of disease

Starvation- severe deficiency in caloric energy intake

Escapees- escaping fish impact wild fish populations

Habitat destruction- habitat can no longer support its natural species

Ecosystem impacts- unnaturally high number of one species

Pesticide use- pesticides used to kill sea lice

Overcrowding- large numbers of fish in one place

Environment- negative impact on local environment

Antibiotic resistance- drugs become ineffective due to suppressed immune systems

3. Solutions...

h_garcia — 2021-03-09 10:18:54 UTC

Advanced water treatment systems-

Maintains high water quality to reduce environmental impacts

Escape prevention measures-

Reduce interaction with the wild

Effluent management-

Efficient waste management programmes to help break down waste and reduce pollution

Responsible site selection-

Locations that minimise habitat destruction

Sustainable feeding practices-

Eco-friendly feed options and minimise over feeding to reduce excess waste

Collaboration and research-

Collaborate with local environmental organisations and universities to develop and implement friendly aquaculture practices

3. Commercial farm example:

h_garcia — 2024-02-23 08:53:32 UTC

Corn Production:

GROUP F: IMPACTS OF COMMERCIAL FISHING -NERISSA

h_garcia — 2024-02-23 08:57:42 UTC

1. What is bottom trawling, what problems does it cause?

h_garcia — 2024-02-23 09:31:33 UTC

When fisherman drag their nets on the seabed, this destroys everything in its past and can destroy whole ecosystems.

4. Image of subsistence farming.

h_garcia — 2024-02-23 09:34:51 UTC

2. To what extent is farming in EDCs and LIDCs mechanised?

h_garcia — 2024-02-23 09:35:39 UTC

Only 1-2 tractors per km2 on Rwanda compared to 130 in India.

However, this is highly variable: 12% of farmers use tractors in Kenya; 57% in Egypt.

In some districts of Ghana 80% of farmers use machinery whereas in other places almost no one.

Overall, these countries are mechanising rapidly.