Across
1. Lutjanus campechanus (3,7)
4. Anoplopoma fimbria (5,3)
7. Hoplostethus atlanticus (6,6)
9. Pomatomus saltatrix
10. Bolbometopon muricatum (5,10)
11. Perca flavescens (11,5)
Down
2. Oncorhynchus gorbuscha (4,6)
3. Salmo trutta (5,5)
5. Thymallus thymallus
6. Coregonus lavaretus
8. Oncorhynchus mykiss (7,5)
You will find this cache under debris at N 48 AB.CDE W 123 FG.HIJ. Please be stealthy and rehide well.
You may check your solution at 
You are looking for a round lock and lock. Please take the time to re-hide well as the area can be busy at times.