What term is used when people fish only for what they need to live?

ANSWER:

Pescetarian is the term used when people eat only fish which is needed for them to Live.

EXPLANATION:

Basically the definition says here, Pescetarian is a person who do not eat any sort of food but only eats fish for living. These sort of people do not eat foods such as steak, chicken or any other non-veg items and they seem to eat vegetarian items such as tofu, various vegetables and grains. It is also considered as pescetarian diet is considered to be the healthiest diet for humans.

The investiture controversy began as a power struggle between pope gregory vii (1072–85) and henry iv, holy roman emperor (1056–1106).[2] a brief but significant struggle over investiture also occurred between henry i of england and pope paschal ii in the years 1103 to 1107, and the issue played a minor role in the struggles between church and state in france, as well.by undercutting the imperial power established by the salian emperors, the controversy led to nearly 50 years of civil war in germany, and the triumph of the great dukes and abbots. imperial power was finally re-established under the hohenstaufen dynasty. historian norman cantor: