5.7 meat production methods/5.8 overfishing

Overgrazing

Too many animals, grazing in area of land can remove all the vegetation which leads to topsoil erosion

Desertification

Can a curve of plants are killed by overgrazing and soil is compacted so much that it can’t hold enough water anymore

Rotational grazing

Moving animals periodically which prevents overgrazing

Fisheries

Populations of fish used for commercial fishing

Fishery collapse

When over fishing causes 90% population decline in a fishery

Decrease bowel diversity, inability to find mates, inbreeding depression

Population may never recover from fishery collapse due to:

Lost income for fisherman

lost tourism dollars for communities

Economic consequence of overfishing

Bottom trawling

Especially harmful fishing method that involves dragging a large net along ocean floor

Bycatch

Unintended species like dolphins, whales, turtles caught in nets Along with destruction of coral reefs during bycatch