Berkala Penelitian Hayati is an international peer-reviewed, open access journal published in June and December by The East Java Biological Society. The journal formerly used Indonesian language. The first edition of this journal is Vol 1 No 1 at June 1995. It was accredited by Education and Cultural Ministry number 134/DIKTI/Kep/2001 and has been re-accredited for 26 April 2017 - 26 April 2022 by Ministry of Research and Higher Education number 32a/E/KPT/2017. Berkala Peneliian Hayati publishes original research, applied, review article, short communications, and educational articles in all areas of biology. Every peer-reviewed article rising in Berkala Penelitian Hayati Jwill be published open access. This statement means that the article is universally and freely accessible via the internet in permanency, in an easily readable format momentarily after publication. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author.