inland waters with regard to the inland waters located in the prefecture's area,  endeavor to establish a plan for implementing these measures (hereinafter  simply referred to as the "plan" in this Article) in line with the basic policy.  (2) If a prefecture intends to establish the plan, when there is a river  administrator (meaning the river administrator prescribed in Article 7 of the  River Act (Act No. 167 of 1964) (including as applied mutatis mutandis  pursuant to Article 100, paragraph (1) of the same Act) (if a prefectural  governor or the mayor of a designated city (meaning the designated city  prescribed in Article 252-19, paragraph (1) of the Local Autonomy Act (Act No.  67 of 1947)) undertakes part of the administration of class-A rivers within a  designated section (meaning the designated section prescribed in Article 9,  paragraph (2) of the River Act) pursuant to Article 9, paragraph (2) or (5) of the  River Act, the prefectural governor or the mayor of the designated city); the  same applies in Article 35, paragraph (3)) for the inland waters relating to the  plan, the prefecture must consult with the river administrator in advance.  (3) A prefecture is to, when establishing the plan, endeavor to publicize it  without delay.  (4) The provisions of the preceding two paragraphs apply mutatis mutandis to  any change in the plan.  Chapter III Measures for promotion of Inland Waters Fishery  Section 1 Investigation of Habitat Status of Inland Waters Resources  Article 11 In order to comprehensively and effectively implement measures for  the recovery of inland waters resources and those for the revitalization of the  fishing ground environment in inland waters, the national and local  governments are to endeavor to investigate the habitat status and habitat  environment of inland waters resources and other matters necessary to  implement these measures.  Article 12 (1) In order to promote the reproduction and aquaculture of inland  waters resources, the national and local governments are to endeavor to  promote the production and releasing of seeds and seedlings of inland waters  resources, promote the research and development of technologies related to  reproduction and aquaculture, disseminate the results thereof, and take other  necessary measures, while considering harmony with the natural environment.  (2) If inland waters resources suffer serious flood damage, when it is found  particularly necessary, the national and local governments are to endeavor to  4  (Promotion of Reproduction and Aquaculture of Inland Waters Resources)  Section 2 Measures for Recovery of Inland Waters Resources 