I took it upon myself to do some more research into the exact meaning of the name Sedna and this is what I was able to locate.
Sedna (f.; Canadian and Greenlandic Inuit)
# Sedna is the same as Nuliajuk.
Sedna was the water spirit: her residence was at the bottom of the sea.
The food-animals are regarded as limbs of Sedna, who is the moon.
Sedna is represented as a walrus.
Aningahk is associated with Sedna, who presides over the food supply of the people.
Sedna was a moon goddess.
Sedna or Arnakuagsak, the woman, controlled the food animals, especially sea animals.
Sedna is identified with the moon.
Sedna has only one eye and her father likewise has only one eye. He pierces her eye. She periodically dies and comes to life again.
Sedna dwells in a house at the bottom of the sea.
Sedna is the controller of rain and storms, and of the sea.
Sedna is a goddess of fate, she has boundless command over the destinies of mankind.
Sedna rules the land of the dead and is attended by a dog.
Pinga or Sedna was arnarkuagssak, the old woman of the seals. She was known as nerrivik, the food dish. And if you look up Pinga you will get this definition:
Pinga (f.; Caribou Eskimo)
Pinga was the female guardian of the animals (Caribou Eskimo).
Pinga or Sedna was arnarkuagssak, the old woman of the seals. She was known as nerrivik, the food dish.
Pinga is offended by abortion. Hopefully this is of some assistance.
I found this helpful information at
http://www.mythopedia.info/synthesis.htm Rev. Alimae