At game startup, 4 different morse code bits appear... what do they mean?



The right-part of the screen hides the characters a bit and morse typos are a pain in the ass to detect so the following translation corrects the flaws of the original text:

1/4 : WITH TWO SWIFT TAILS, HE GLIDES AT NIGHT.
2/4 : THREE FIERCE FINS SLICING THROUGH THE TIDE,
3/4 : SEVEN SENSES SHARP, HIS PREY CAN'T HIDE.
4/4 : IN HIS DOMAIN, FIVE SEAS COME ALIVE.

I don't know what that means! It's original text

Note however the presence of a number in each line: 2375. This is a trick sometimes used in puzzles to give you a secret combination. But where to put it...?

• The original Morse code was a work of both Alfred Vail and Samuel Morse
  
• This Morse code was replaced about 20 years later by the International Morse code, still in use today
  
• Samuel Morse was at first an accomplished painter, then patented a new kind of telegraph but struggled to get paid for its use until several european governments paid him a lump sum as recognition. He was also pro slavery
  
• There is some Morse code in a russian document in-game, but the translation is written just under it
  
• There's a blob fish in-game