Regulation of the fish industry, which falls mainly under the jurisdiction of the is especially difficult because most fish are caught in the wild by independent fishermen in relatively small boats.

Food and Drug Administration

Explanation:

In the United States of America, the governance and control of the fish industry tends to fall under the administration of Food and Drug Administration. Hence, the administration of this particular industry is difficult when the fish that are caught are by independent and unregistered fisherman. This is mostly  carried out in the wild and hence the Food and Drug Administration is not able to regulate it properly.

answer; ///he could not explain why the continents drifted;

answer; a biased sample;