Heat oil in heavy Dutch oven over low heat. Add onion,
leeks, and
celery. Cover and cook until tender, about 15 minutes. Add
garlic and
oregano, cook another 10 minutes then add tomatoes,
breaking up with
a spoon. Blend in the clam juice, wine, chili paste,
cumin, salt and
cayenne. Bring to a boil, skimming occasionally.
Reduce heat and simmer, partially covered, for about 1
hour,
skimming. Mix in bell peppers. Simmer uncovered for 20
minutes.
Cool. refrigerate overnight. Bring chili to a boil.
Adjust heat so
that liquid simmers briskly. Stir well and adjust
seasonings. Add
clams and mussels. Cover and cook until shellfish open, 5
to 10
minutes. Discard any that do not open. Gently stir in
scrod and
shrimp. Cover and simmer for a minute. Add scallops, cover
and simmer
until fish is just opaque, about 2 minutes. ladle chili
into bowls.
Top with cilantro.