Historical clue formulations

• Beyond the continental shelf, say — 2025-12-15
• Anglerfish locale — 2025-07-03
• Home of lanternfish and giant squids — 2018-01-18
• Kind of fishing or diving — 2017-11-21
• Kind of diving — 2011-04-26
• Bathysphere's place — 2006-09-23
• Really far-out? — 2004-06-11
• Kind of diver — 2001-07-19
• Like some fishing — 2000-02-13
• Not coastal — 1997-06-08
• What "bathy-" means — 1997-05-22