Report Abuse. This isn't quite exact, but 1/4 cup of butter (so a half stick if you're in the US) is 57 grams according to the conversion chart from allrecipes below. So use just a slightly heavy 1/4 cup or 1/2 stick. By the way, a 1/4 cup is 4 Tablespoons.
Normally, this species is 57 to 95 cm (23â37 in) long, not counting a tail of 35â45 cm (14â18 in). The female is shorter than the male. The otter's average body weight is 7 to 12 kg (15.4â26.4 lbs), although occasionally a large old male may reach up to 17 kg (37 lbs). The record-sized specimen, reported by a reliable source but not verified, weighed over 24 kg (53 lbs).
They can store extra food, and rocks used as tools, in these pockets. Sea otters have a high metabolic rate (that is, they use a high amount of energy) that is 2-3 times that of other mammals their size. Sea otters eat about 20-30% of their body weight each day. Otters weigh from 35-90 pounds (males weigh more than females). So, a 50-pound otter would need to eat about 10-15 pounds of food per day. The food sea otters eat can impact the entire ecosystem in which they live. Sea otters have been found to play a pivotal role in the habitat and marine life that inhabit a kelp forest.