It depends on the nutritional requirements bacteria prefer. For example the type of N sources if is it organic or inorganic ....etc

I don't think this medium is suitable for marine microbs. The medium presented here https://utex.org/products/artificial-seawater-medium might be more appropriate.

Isolation of PAH-Degrading Bacteria. ... Pure cultures from various treatments of the artificial pollution were isolated after selective enrichment in Bushnell Haas (BH) broth [23] supplemented with three PAHs, naphthalene, phenanthrene, and fluoranthene, that served as the sole source of carbon.

It depends on the nutritional requirements bacteria prefer. For example the type of N sources if is it organic or inorganic ....etc

I think Bushnell Haas medium is appropriate for the isolation of Hydrocarbon Degrading bacteria.