If by, "in their vein" you mean low bad carbs, no deep fried foods, then just about any decent seafood restaurant would work. Starfish, Zee Grill, and Diana's Oyster Bar & Grill would be a good start to your research. If you mean they would prefer an establishment featuring Russian seafood dishes, then I'm well and truly stumped.
If you're looking for a French-ish restaurant that does good things with seafood and offers plenty of choices, then take a look at Scaramouche.
http://www.starfishoysterbed.com/
http://www.zeegrill.com/
http://dianasseafood.com/Restaurant/
http://www.scaramoucherestaurant.com/
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