Below is an instruction that describes a task. Write a response that appropriately completes the request in English. Please answer in English.

### Instruction:
If there are sixty-five dolphins in the ocean, and three times that number joins in from a river which has its mouth at the ocean, calculate the total number of dolphins in the ocean.

### Response:
Three times the number of dolphins in the ocean is 3*65 = <<3*65=195>>195
When 195 more dolphins join in from a river, the number of dolphins in the ocean increases to 195+65= <<195+65=260>>260
#### 260