This is the 1729th most frequent Polish word.
statków
"Statków" means "of ships" or "ships'" in English (genitive plural form of "statek").
Here, 'statków' is in the genitive plural form, used after 'wystarczająco', which requires genitive.
Nie było wystarczająco statków na czas wojny.
There were not enough ships during the war.
Here, 'statków' is the genitive plural form of 'statek', used to express possession or quantity (genitive case used with 'tłumy').
Widzę tłumy statków na horyzoncie.
I see crowds of ships on the horizon.
In this case, 'statków' is again genitive plural, showing association or belonging to the captain.