Checklist of Freshwater Fish
|3. Superclass Gnathostomata, Class Osteichtyes: Bony Fish
|Family Anguillidae: Fresh-water Eels
|Native; fresh and brackish water; known from most ponds and brooks and one pond on Nomans Land Island.
|Family Clupeidae: Herrings
|Native; fresh and brackish water; known from several large coastal ponds.
|Native; fresh and brackish water; known from several large ponds.
|Family Engraulidae: Anchovy Family
|Native; primarily a marine species but found occasionally in fresh/brackish ponds such as Chilmark Pond and Menemsha Pond.
|Family Cyprinidae: Carps and Minnows
|Native; fresh water only; known from two sites in West Tisbury and Chilmark.
|Family Ictaluridae: Bullhead Catfish
|Native; fresh water only; found in three island ponds in the morainal hills of West Tisbury and Tisbury.
|Family Esocidae: Pikes and Pickerels
|Fresh water only; introduced into Squibnocket Pond in the 1930s, now extirpated.
|Native; fresh water only; found in one pond in the West Tisbury morainal hills.
|Native; fresh water only; known from at least seven island ponds mostly in the moranial hills.
|Family Osmeridae: Smelts
|Native; salt and brackish water primarily; has been known to enter Squibnocket Pond when it was open to the sea; currently believed extirpated from there.
|Family Salmonidae: Salmon and Trout
|Occasional introductions in the first half of the 20th century; in recent decades, regularly stocked in upper Lagoon Pond (Oak Bluffs) and Duarte, Seth's, and Mill Ponds in West Tisbury.
|Fresh water only; introduced into Upper Lagoon Pond regularly since 1970.
|Native; fresh water only; known from at least 12 island ponds and streams; presumed native populations in some brooks such as Roaring Brook in Chilmark have likely been present since before the island separated from the mainland. In recent years, regularly stocked in Seth's and Duarte Pond, West Tisbury.
|Salmo trutta × Salvelinus fontinalis
|Stocked regularly in upper Lagoon Pond (Oak Bluffs) and Duarte Pond (West Tisbury). This hybrid is said to be sterile, though stocked fish could persist year-round.
|Family Gadidae: Cods
|Native; brackish water primarily; known from two sites in Chilmark and West Tisbury.
|Family Belonidae: Needlefish
|Native; primarily salt water but found in brackish ponds and estuaries from July to October primarily to spawn; known from two island sites.
|Family Fundulidae: Killifish
|Native; fresh water only; known from at least 10 island sites; in all towns but Edgartown
|Native; primarily in brackish to salt water; known from most major coastal ponds on the island. Possibly the species seen at Nomans Land Island.
|Native; primarily fresh water but also brackish water in salt-marshes; known from most south shore island ponds and a few fresh water streams.
|Family Cyprinodontidae: Minnows
|Native; a fresh-water species elsewhere but in MA primarily found in brackish and salt water bays and estuaries; found in several south shore ponds Katama Bay Lake Tashmoo and the Lagoon; near the very north end of its East Coast distribution.
|Family Atherinopsidae: Silversides
|Native; mostly in brackish to salt water; found regularly in most island coastal ponds, bays, and estuaries. Uncommon local and cyclic north of Cape Cod.
|Native; mostly in brackish water in coastal ponds, bays, and estuaries; common in such island localities.
|Family Mugilidae: Mullets
|Native; mostly in brackish water in coastal ponds, bays, and estuaries; known from Menemsha Pond the Lagoon Sengekontacket Pond and Tisbury Great Pond.
|Family Gasterosteidae: Sticklebacks
|Native; primarily in brackish salt marshes and tidal creeks; known from most south coast ponds and all brackish bays.
|Native; primarily salt water until spawning season in spring and early summer when it regularly enters brackish areas; known from Menemsha and Tisbury Great Ponds; the trimorphic fresh water form is a Threatened species in MA.
|Native; primarily in brackish water in salt marshes and coastal streams; known from at least nine sites in such island localities.
|Family Syngnathidae: Pipefishes
|Native; primarily in salt water but regularly enters brackish bays and estuaries; known from Tisbury and Edgartown Great Ponds and Katama Bay especially August to October.
|Family Moronidae: Striped Bass Family
|Native; found in fresh brackish and salt water; known from three south shore coastal ponds and Menemsha Pond.
|Family Centrarchidae: Sunfish
|Native; heavily vegetated fresh water only; found at two sites in West Tisbury in 1988.
|Originally introduced into Upper Chilmark Pond before 1980 but now thought to be extirpated; known from one West Tisbury site.
|Formerly introduced into Upper Chilmark and Squibnocket Ponds but now believed extirpated.
|Formerly introduced into Upper Chilmark Pond but now believed extirpated; found at one West Tisbury site.
|Included here based on eDNA data collected in 2017 from Looks Pond in West Tisbury
|Family Percidae: Perch
|Native; heavily vegetated fresh water only; known from two ponds in the morainal hills.
|Native; only in flowing freshwater streams of Chilmark and West Tisbury; known from five sites.
|Native; fresh water ponds and slow-moving streams only; known from at least nine island ponds.
|Family Carangidae: Jacks
|Native; primarily salt water but often enters brackish bays; known from Menemsha Pond.
|Family Achiridae: American Sole Family
|Native; found in brackish estuaries and coastal streams influenced by the tide; known from Tisbury Great Pond.