?觅食洄游

alimental migration 觅食洄游; 取食[索饵]回游; 取食回游..

?取食回游

migration: 移民的实质_天涯博客_有见识... ... age migration 年龄侵移 alimental migration 取食[索饵]回游 anadromous migration 溯河回游(向陆回游) ...