QUES: But they were not on one of the biggest shelfs were the catch used to be the greatest

correct the punctuation.

CORRECTED: But they were not on one of the biggest shelfs, were the catch used to be the greatest.

QUES: However the Cold War dictated the necessity of Japan having a strong vigorish economy

correct the punctuation.

CORRECTED: However the Cold War dictated the necessity of Japan having a strong, vigorish economy.

QUES: For Haiti the Nexant analysis presents three scenarios and concludes that liquified natural gas LNG is the cheapest fuel option at nearly all capacity factors See table

correct the punctuation.

CORRECTED:
For Haiti, the Nexant analysis presents three scenarios and concludes that liquified natural gas (LNG) is the cheapest fuel option at nearly all capacity factors. (See table.)