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.
Yellowtail, including Yellowtail Jack (Seriol landei), are recognized by a yellow stripe across their body and their yellow tail. Range & Habitat: Yellowtail is caught year round, but more commonly during summer in the Pacific Coast and the Sea of Cortez. They are caught primarily with hook and line, and their average weight is 10 to 20 lbs.
Buteo jamaicensis. Red-tailed hawks average 48 to 65 centimeters in length. Their wingspan is approximately 4 feet, or 122 centimeters. There is sexual dimorphism in size: females are 25% larger than males. This kind of sexual dimorphism, where females are larger than males, is common in birds of prey.