Коллеги, помогите с переводом термина drift rate.
Контекст следующий:
When the animals start swimming away from an island and start searching for food,
it uses up energy and basically uses up fat, so it becomes skinny and the
drift rate becomes
more and more negative and you can see that the seal is going skinny and the
drift rate becomes
more negative so it’s drifting down towards the bottom.
Если поможет, имеется еще такая картинка:
