Alewife of many native species of fish. In an effort to control them biologically, Pacific salmon were introduced, only partially successfully. As a marine fish, the alewife is a US National Marine Fisheries Service "Species of Concern". Alewives reach a maximum length of about 40 cm (16 in), but have an average length of about 25 cm (10 in). The front of the body is deep and larger than other fish found in the same waters, and its common name is said to come from comparison with a corpulent female tavernkeeper ("ale-wife"). In southwestern Nova Scotia, it is called a kiack
Polyphase merge sort Polyphase merge sort A polyphase merge sort is a variation of bottom up Merge sort that sorts a list using an initial uneven distribution of sub-lists (runs), primarily used for external sorting, and is more efficient than an ordinary merge sort when there are less than 8 external working files (such as a tape drive or a file on a hard drive). A polyphase merge sort is not a stable sort. A merge sort splits the records of a dataset into sorted runs of records and then repeatedly merges sorted runs into larger sorted runs until only one run, the