SCHEMA:
CREATE TABLE table_2001348_1 (ilo_code VARCHAR, revising_convention_s_ VARCHAR)
USER:
How many ILO codes are there with revising conventions of 'this convention, work in fishing convention'?

QUERY:
SELECT COUNT(ilo_code) FROM table_2001348_1 WHERE revising_convention_s_ = "this convention, Work in Fishing Convention"