 Hava worked as an oceanographer in Israel for about 50 years.After arriving to the port of Haifa shortly after the end of the 1948 Arab-Israeli War and the establishment of the state of Israel, she was immediately recruited by the head of the "Sea Fisheries Research Station" "Hatachana Lecheker Hadaig" ("התחנה לחקר הדיג") in Haifa.The Station had been established in 1946 by German Jewish biologist and zoologist Walter Steinitz, and had only recently received support from the newly formed Israeli Ministry of Agriculture to begin studying the Mediterranean coast.