NMEA 2000 Shield

hey,
I have a DST800 sensor (depth sensor, speed and temperature).
This sensor works with the NMEA2000 standard.
I am using a seeed CAN shield (v1-2) (CAN-BUS Shield V1.2 | Seeed Studio Wiki)
And i use an arduino MEGA 2560 and a 12V continuous stable power supply.
I think i need to use the "ttlappalainen" library (ttlappalainen (Timo Lappalainen) · GitHub).

Someone would have managed to acquire the data from this sensor?
If yes, how did you do it?

thank you in advance