List of freshwater fishes of Maryland facts for kids
Maryland is home to many different kinds of freshwater fish! These are fish that live in rivers, lakes, and streams, not in the ocean. This list will introduce you to some of the cool fish you can find swimming wild in Maryland's fresh waters.
Contents
Bowfin
The Bowfin is a unique fish, often called a 'living fossil' because it looks a lot like its ancient ancestors!
Catfishes
Catfishes are easy to spot with their long whiskers, called 'barbels,' which help them find food in murky waters. Many of them are popular for fishing!
- White catfish (Ameiurus catus)
- Yellow bullhead (Ameiurus natalis)
- Brown bullhead (Ameiurus nebulosus)
- Blue catfish (Ictalurus furcatus)
- Channel catfish (Ictalurus punctatus)
- Stonecat (Noturus flavus)
- Tadpole madtom (Noturus gyrinus)
- Margined madtom (Noturus insignis)
- Flathead catfish (Pylodictis olivaris)
Eels
The American Eel has a long, snake-like body and can travel long distances between fresh and saltwater during its life.
Gars
Gars are ancient fish with long, narrow bodies and sharp teeth. They are often found near the surface of the water.
Herrings
Herrings are often found in large schools. Many of these fish travel from the ocean into freshwater rivers to lay their eggs.
- Blueback herring (Alosa aestivalis)
- Hickory shad (Alosa mediocris)
- Alewife (Alosa pseudoharengus)
- American shad (Alosa sapidissima)
- Gizzard shad (Dorosoma cepedianum)
- Threadfin shad (Dorosoma petenense)
Killifishes
Killifishes are small, hardy fish that can live in many different types of freshwater habitats.
- Banded killifish (Fundulus diaphanus)
- Mummichog (Fundulus heteroclitus)
- Spotfin killifish (Fundulus luciae)
- Striped killifish (Fundulus majalis)
- Rainwater killifish (Lucania parva)
Lampreys
Lampreys are unique, jawless fish that look a bit like eels. Some live in freshwater their whole lives, while others travel to the ocean.
- Least brook lamprey (Lampetra aepyptera)
- American brook lamprey (Lampetra appendix)
- Sea lamprey (Petromyzon marinus)
Lotids
The Burbot is the only freshwater fish in the cod family. It prefers cold waters and is mostly active at night.
Minnows
Minnows are a very large group of small fish. They are important food sources for bigger fish and often live in schools. Some minnows listed here were introduced to Maryland.
- Central stoneroller (Campostoma anomalum)
- Goldfish (Carassius auratus) (introduced)
- Koi (Cyprinus rubrofuscus) (introduced)
- Redside dace (Clinostomus elongatus)
- Rosyside dace (Clinostomus funduloides)
- Grass carp (Ctenopharyngodon idella)
- Satinfin shiner (Cyprinella analostana)
- Spotfin shiner (Cyprinella spiloptera)
- Common carp (Cyprinus carpio)
- Cutlips minnow (Exoglossum maxillingua)
- Eastern silvery minnow (Hybognathus regius)
- Striped shiner (Luxilus chrysocephalus)
- Common shiner (Luxilus cornutus)
- Allegheny pearl dace (Margariscus margarita)
- River chub (Nocomis micropogon)
- Golden shiner (Notemigonus crysoleucas)
- Comely shiner (Notropis amoenus)
- Emerald shiner (Notropis atherinoides)
- Bridle shiner (Notropis bifrenatus)
- Silverjaw minnow (Notropis buccatus)
- Ironcolor shiner (Notropis chalybaeus)
- Spottail shiner (Notropis hudsonius)
- Swallowtail shiner (Notropis procne)
- Rosyface shiner (Notropis rubellus)
- Cheat minnow (Pararhinichthys bowersi)
- Bluntnose minnow (Pimephales notatus)
- Fathead minnow (Pimephales promelas)
- Eastern blacknose dace (Rhinichthys atratulus)
- Longnose dace (Rhinichthys cataractae)
- Common rudd (Scardinius erythropthalmus) (introduced)
- Creek chub (Semotilus atromaculatus)
- Fallfish (Semotilus corporalis)
- Tench (Tinca tinca) (introduced)
Mudminnows
Mudminnows are small, hardy fish that can survive in low-oxygen water by breathing air.
Perches
Perches are a diverse group of fish, including darters, which are small and colorful, and larger fish like the Yellow Perch.
- Greenside darter (Etheostoma blennioides)
- Rainbow darter (Etheostoma caeruleum)
- Fantail darter (Etheostoma flabellare)
- Swamp darter (Etheostoma fusiforme)
- Johnny darter (Etheostoma nigrum)
- Tessellated darter (Etheostoma olmstedi)
- Maryland darter (Etheostoma sellare)
- Glassy darter (Etheostoma vitreum)
- Banded darter (Etheostoma zonale)
- Yellow perch (Perca flavescens)
- Common logperch (Percina caprodes)
- Stripeback darter (Percina notogramma)
- Shield darter (Percina peltata)
- Walleye (Sander vitreum) (introduced)
Percopsids
The Trout-perch is a small fish that looks a bit like both a trout and a perch.
Pikes
Pikes are long, slender fish with sharp teeth. They are top predators in their freshwater homes.
- Redfin pickerel (Esox americanus)
- Northern pike (Esox lucius)
- Muskellunge (Esox masquinongy)
- Tiger muskellunge (Esox masquinongy X Esox lucius)
- Chain pickerel (Esox niger)
Pirate perch
The Pirate Perch is a unique fish that can change its appearance to blend in with its surroundings.
- Pirate perch (Aphredoderus sayanus)
Poeciliids
The Eastern Mosquitofish is a small fish known for eating mosquito larvae, which helps control mosquito populations.
Pupfish
Pupfish are small, hardy fish that can live in very salty or warm waters where other fish cannot survive.
Sculpins
Sculpins are bottom-dwelling fish with large heads and spiny fins. They often hide among rocks.
Silversides
Silversides are small, slender fish with a silvery stripe along their sides. They often swim in schools near the water's surface.
- Rough silverside (Membras martinica)
- Inland silverside (Menidia beryllina)
- Atlantic silverside (Menidia menidia)
Smelts
Rainbow Smelt are small, silvery fish that are sometimes caught for food. They have a distinct cucumber-like smell.
Snakeheads
The Northern Snakehead is an invasive species that was introduced to Maryland. It can breathe air and survive out of water for short periods.
- Northern snakehead (introduced)
Sticklebacks
Sticklebacks are small fish known for their sharp spines on their backs. They also build unique nests for their eggs.
- Fourspine stickleback (Apeltes quadracus)
- Brook stickleback (Culaea inconstans)
- Threespine stickleback (Gasterosteus aculeatus)
Sturgeons
Sturgeons are very large, ancient fish with bony plates on their bodies. They can live for many years and are quite rare.
- Shortnose sturgeon (Acipenser brevirostrum)
- Atlantic sturgeon (Acipenser oxyrhinchus)
Suckers
Suckers are bottom-feeding fish with fleshy lips that help them suck up food from the riverbed.
- Quillback (Carpiodes cyprinus)
- Longnose sucker (Catostomus catostomus)
- White sucker (Catostomus commersoni)
- Creek chubsucker (Erimyzon oblongus)
- Northern hogsucker (Hypentelium nigricans)
- Golden redhorse (Moxostoma erythrurum)
- Shorthead redhorse (Moxostoma macrolepidotum)
Sunfishes
Sunfishes are a popular group of fish for anglers, including many colorful sunfish species and the well-known bass.
- Mud sunfish (Acantharcus pomotis)
- Rock bass (Amblopites rupestris)
- Flier (Centrarchus macropterus)
- Blackbanded sunfish (Enneacanthus chaetodon)
- Bluespotted sunfish (Enneacanthus gloriosus)
- Banded sunfish (Enneacanthus obesus)
- Redbreast sunfish (Lepomis auritus)
- Green sunfish (Lepomis cyanellus)
- Pumpkinseed (Lepomis gibbosus)
- Pumpkingill (Lepomis gibbosus x macrochirus)
- Warmouth (Lepomis gulosus)
- Bluegill (Lepomis macrochirus)
- Greengill sunfish (Lepomis macrochirus x cyanellus)
- Longear sunfish (Lepomis megalotis)
- Redear sunfish (Lepomis microlophus)
- Smallmouth bass (Micropterus dolomieu)
- Largemouth bass (Micropterus salmoides)
- White crappie (Pomoxis annularis)
- Black crappie (Pomoxis nigromaculatus)
Temperate basses
Temperate basses are strong, fast-swimming fish. The Striped Bass is famous for migrating between fresh and saltwater.
Trout and whitefish
Trout are popular game fish known for living in cold, clear waters. They are often stocked in rivers and streams for fishing.
- Cutthroat trout (Oncorhynchus clarki)
- Rainbow trout (Oncorhynchus mykiss)
- Brown trout (Salmo trutta)
- Brook trout (Salvelinus fontinalis)
- Lake trout (Salvelinus namaycush)
- Lake herring (Coregonus artedi)