Acid and alkali resistant shewanella alga bacteriophage and application thereof

The invention relates to the technical field of biology, and particularly discloses an acid and alkali resistant shewanella bacteria bacteriophage and application thereof, the acid and alkali resistant shewanella bacteria bacteriophage is named as shewanella bacteria bacteriophage PKP-SH23061 and preserved in China General Microbiological Culture Collection Center (CGMCC), the preservation number is CGMCC NO.45782, and the acid and alkali resistant shewanella bacteria bacteriophage is named as SKP-SH23061 and preserved in China General Microbiological Culture Collection Center (CGMCC). The application is as follows: the shewanella alginate bacteriophage is used for preventing and treating diseases caused by infecting cultured fishes with shewanella alginate; the bacterial strain still has high activity in a wide pH range, has a strong splitting action on target thalli, and can effectively prevent and control diseases caused by infection of shewanella alginate in an aquaculture farm. 本申请涉及生物技术领域，具体公开了一株耐酸碱海藻希瓦