California jack, also known as California yellowtail or Seriola lalandi dorsalis, is a popular fish species found along the coast of California. This versatile fish has several synonyms that are commonly used to refer to it. One such synonym is the Pacific yellowtail, denoting its presence in the Pacific Ocean. Another synonym often used is the inappropriately named "amberjack", due to its resemblance to certain species of amberjack. Moreover, this fish is sometimes referred to as "hamachi", which is the Japanese term for yellowtail. Despite the various synonyms, the California jack remains a sought-after fish known for its firm texture and delicate yet flavorful taste.