An expanding field reference, including a few labeled species groups. Habitat tags are broad. Historical survey records, seasonal visitors and wider Gulf ranges are marked; none predicts a sighting or gives permission to catch or keep an animal. Illustrations show animal types and are not identification keys.
Sharks
Blacktip shark
Carcharhinus limbatusHistorical Louisiana survey
A coastal shark associated with bays, river mouths and shelf water. Its resemblance to a spinner makes a careful fin-and-body comparison useful.
A starting pointBlack-tipped fins can resemble spinner shark; compare the anal fin and dorsal position.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Sharks
Bull shark
Carcharhinus leucasHistorical Louisiana survey
A heavy-bodied coastal shark that can enter estuaries and freshwater. The setting alone cannot establish whether the animal is a bull shark.
A starting pointCompare the blunt head, small eyes and rear-sloping first dorsal fin.
Freshwater · Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Finfish · Group entry
Bowfin / choupique
Amia spp.Louisiana freshwater record
A native freshwater fish often confused with introduced snakeheads. Choupique and grinnel are useful local search names.
A starting pointCompare the long dorsal fin, rounded tail and short anal fin.
Freshwater
Read the connected field lesson →Finfish
Atlantic croaker
Micropogonias undulatusLouisiana / northern Gulf
A bottom-feeding drum of bays, estuaries and the Gulf. Its croaking sound gives the fish its name.
A starting pointLook for wavy markings and a rounded tail; compare similar spot.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Rays
Cownose ray
Rhinoptera bonasusLouisiana survey record
Recorded in a Louisiana shrimp-fishery bycatch evaluation. Rays are part of the same broad cartilaginous-fish lineage as sharks.
A starting pointA broad swimming disc; use the full ray reference for identification.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Mammals
Bottlenose dolphin
Louisiana coast and Gulf
A marine mammal that breathes air and feeds on fish and other prey. Coastal and offshore settings are distinct contexts.
A starting pointA dolphin is not the dolphinfish sold as mahi-mahi.
Estuaries & brackish water · Coast & nearshore · Offshore Gulf
Read the connected field lesson →Louisiana wetlands
An important Louisiana wetland predator. The complete guide explains observation, fishing-area encounters and keeping fish scraps away from wildlife.
A starting pointA broad snout and armored body; give the animal room.
Freshwater · Estuaries & brackish water
Read the connected field lesson →Louisiana water life
A swimming crab whose life connects estuarine and coastal habitat. Learn the animal separately from the current recreational harvest rules.
A starting pointPaddle-like rear legs distinguish swimming crabs.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Offshore records; uncommon encounter
A Gulf resident documented by sightings and calls offshore of Louisiana and Texas. Most records are farther east; encounters are unpredictable.
A starting pointUse the whale guide to understand offshore scope and observation limits.
Offshore Gulf
Read the connected field lesson →Louisiana marine range
Included in NOAA’s Louisiana sea-turtle list. Follow the full lesson’s observation and reporting guidance rather than approaching a turtle.
A starting pointUse an agency species key rather than size alone.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Redfish / red drum
Louisiana / northern Gulf
Marsh edges, coastal habitat, bait and lure presentations.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana water life
Its life cycle links offshore spawning with estuarine nursery habitat. White shrimp and brown shrimp are distinct species.
A starting pointUse the full shrimp reference for species features.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Louisiana / northern Gulf
Coastal habitat, presentation and the limits of cold-water evidence.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana / northern Gulf
Identification, structure and a deliberate presentation.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana / northern Gulf
Distinguish drum and sheepshead; connect the target to the outing.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana / northern Gulf
Bottom-oriented fishing, identification and rule checks.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana / northern Gulf
Structure searches, identification and a controlled presentation.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana / northern Gulf
Floating cover, casting position and careful identification.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana / northern Gulf
Gray snapper habitat, cover and presentation.
A starting pointOpen the full guide for identification, habitat and methods.
Estuaries & brackish water · Coast & nearshore
Read the species guide →Louisiana / northern Gulf
Reef habitat, methods, release preparation and the actual trip category.
A starting pointOpen the full guide for identification, habitat and methods.
Offshore Gulf
Read the species guide →Louisiana / northern Gulf
Compare offshore formats, effort and seasonal evidence.
A starting pointOpen the full guide for identification, habitat and methods.
Offshore Gulf
Read the species guide →Louisiana / northern Gulf
Check whether a focused offshore method matches the trip you want.
A starting pointOpen the full guide for identification, habitat and methods.
Offshore Gulf
Read the species guide →Louisiana / northern Gulf
Use the target to ask about the actual offshore offering.
A starting pointOpen the full guide for identification, habitat and methods.
Offshore Gulf
Read the species guide →Louisiana / northern Gulf
Identification, depth and the preparation behind vertical fishing.
A starting pointOpen the full guide for identification, habitat and methods.
Offshore Gulf
Read the species guide →Louisiana / northern Gulf
Recognize the target and control a drop above structure.
A starting pointOpen the full guide for identification, habitat and methods.
Offshore Gulf
Read the species guide →Louisiana / northern Gulf
Choose a learning goal, technique and lake outing.
A starting pointOpen the full guide for identification, habitat and methods.
Freshwater
Read the species guide →Finfish · Group entry
Crappie / sac-a-lait
Louisiana / northern Gulf
Depth, waterbody and the format of a guided or independent day.
A starting pointOpen the full guide for identification, habitat and methods.
Freshwater
Read the species guide →Finfish · Group entry
Catfish
Louisiana / northern Gulf
Start with the river reach or lake and your access method.
A starting pointOpen the full guide for identification, habitat and methods.
Freshwater
Read the species guide →Finfish · Group entry
Bluegill & redear
Louisiana / northern Gulf
A bream lesson in small tackle, depth and a bank-fishing plan.
A starting pointOpen the full guide for identification, habitat and methods.
Freshwater
Read the species guide →Finfish · Group entry
Striped & white bass
Louisiana / northern Gulf
Identify the fish and hybrids, then follow forage and presentation.
A starting pointOpen the full guide for identification, habitat and methods.
Freshwater
Read the species guide →Louisiana / northern Gulf
Native floodplain ecology, identification and responsible preparation.
A starting pointOpen the full guide for identification, habitat and methods.
Freshwater
Read the species guide →Finfish
Sand seatrout / white trout
Cynoscion arenariusLouisiana / northern Gulf
Sand and mud bottoms support this seatrout from estuaries into the Gulf. White trout is a shared local name, so distinguish it from silver seatrout.
A starting pointOften a yellowish cast; compare the full agency illustration.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Finfish
Silver seatrout
Cynoscion nothusLouisiana / northern Gulf
A northern Gulf seatrout that is often grouped with sand seatrout under the name white trout. They are different species.
A starting pointSilver body without the sand seatrout’s yellow cast.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Finfish
Gafftopsail catfish
Bagre marinusLouisiana / northern Gulf
A coastal catfish with long fin filaments and barbels. It feeds throughout the water column, rather than only along the bottom.
A starting pointLong dorsal and pectoral filaments; sharp fin spines require care.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Louisiana / northern Gulf
A saltwater catfish of nearshore and estuarine water. It lacks the gafftopsail’s trailing fin extensions.
A starting pointFour chin barbels; sharp fin spines require care.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Finfish
Striped mullet
Mugil cephalusLouisiana / northern Gulf
Schooling mullet connect rivers, estuaries and the Gulf. They consume algae and detritus and are part of the forage base for larger fish.
A starting pointTwo separated dorsal fins; stripes become clearer on larger fish.
Freshwater · Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Finfish
King mackerel / kingfish
Scomberomorus cavallaLouisiana / northern Gulf
An open-water coastal predator that follows food and temperature. Young kings can have spots, making color alone an unreliable distinction from Spanish mackerel.
A starting pointCompare the sharply dipping lateral line and first dorsal fin.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Spanish mackerel
Scomberomorus maculatusLouisiana / northern Gulf
A schooling coastal predator that feeds heavily on smaller fish. Use the full species reference when separating it from a young king mackerel.
A starting pointOval yellowish spots; lateral line does not dip as sharply as a king’s.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Crevalle jack
Caranx hipposLouisiana / northern Gulf
One of the jacks shown in LDWF’s common Louisiana saltwater-fish reference. Identification should distinguish it from other jack-family fish.
A starting pointDark gill-cover spot and a steep forehead are useful comparison features.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Finfish
Florida pompano
Trachinotus carolinusLouisiana / northern Gulf
Despite the name, this fish appears in LDWF’s Louisiana coastal-fish poster. Compare its deep body with similar jacks.
A starting pointDeep, silver body with yellow below; tail-base sides are smooth.
Coast & nearshore
Read the connected field lesson →Finfish
Atlantic spadefish
Chaetodipterus faberLouisiana / northern Gulf
A deep-bodied fish included in LDWF’s common Louisiana saltwater-fish identification poster. Use the illustrated reference for a complete comparison.
A starting pointA spade-shaped body with contrasting vertical bands.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Tarpon
Megalops atlanticusLouisiana / northern Gulf
Tarpon are included in LDWF’s common Louisiana saltwater-fish poster. Begin with identification and the intended water before choosing a specialized outing.
A starting pointLarge reflective scales and an upturned mouth are starting cues.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Finfish
Bluefish
Pomatomus saltatrixLouisiana / northern Gulf
Bluefish are included in LDWF’s common Louisiana saltwater-fish poster. A familiar name is not a reason to skip a species comparison.
A starting pointCompare the body, mouth and fins with the official illustration.
Coast & nearshore
Read the connected field lesson →Finfish
Blue runner / hardtail
Caranx crysosLouisiana / northern Gulf
Louisiana Sea Grant describes blue runners around northern Gulf platforms and their place in the food web. They are fish to recognize even when another species is the intended target.
A starting pointHardtail is a local name for blue runner.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Blackfin tuna
Thunnus atlanticusLouisiana / northern Gulf
A Gulf tuna that can enter greener water closer to shore than some other tunas. Distinguish it from yellowfin and small tuna look-alikes.
A starting pointDusky finlets help separate it from other tunas.
Offshore Gulf
Read the connected field lesson →Finfish
Skipjack tuna
Katsuwonus pelamisLouisiana / northern Gulf
A schooling tuna of Gulf blue water. Shared names such as bonito can hide differences between skipjack, little tunny and Atlantic bonito.
A starting pointHorizontal dark lines run along the lower sides and belly.
Offshore Gulf
Read the connected field lesson →Finfish
Little tunny / false albacore
Euthynnus alletteratusLouisiana / northern Gulf
A schooling Gulf tuna relative that can range close to shore. It is a different fish from albacore or Atlantic bonito.
A starting pointWavy marks on the rear back and dark spots low near the pectoral fins.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Gray triggerfish
Balistes capriscusLouisiana / northern Gulf
A reef-associated fish with a distinctive locking dorsal-spine mechanism. Juveniles and adults differ in appearance.
A starting pointA deep body and prominent first dorsal spine are useful cues.
Offshore Gulf
Read the connected field lesson →Finfish
Gag grouper
Mycteroperca microlepisLouisiana / northern Gulf
Louisiana Sea Grant places adults around Gulf bottom relief and juveniles closer to shore. The name black grouper is sometimes used loosely for gag.
A starting pointMottled gray; compare the complete grouper key.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Red grouper
Epinephelus morioGulf range
A grouper within the wider Gulf range. Adults associate with rocky ledges and live bottom; juveniles use shallower habitat.
A starting pointReddish-brown body, pale spots and a large mouth.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Finfish
Almaco jack
Seriola rivolianaLouisiana / northern Gulf
A Gulf reef and wreck fish that is easily grouped with amberjack. A shared family resemblance does not establish the species.
A starting pointDeeper body and longer dorsal/anal lobes than greater amberjack.
Offshore Gulf
Read the connected field lesson →Finfish
Swordfish
Xiphias gladiusGulf range
An oceanic predator that moves through the water column. The Gulf forms part of its nursery range; this is a specialized offshore fishing context.
A starting pointA flattened sword-like bill and large eyes.
Offshore Gulf
Read the connected field lesson →Finfish
Freshwater drum / gaspergou
Aplodinotus grunniensLouisiana freshwater record
A freshwater member of the drum family that often feeds close to the bottom. It is a different species from coastal redfish and black drum.
A starting pointSilvery, deep body; lacks the red drum’s tail spot.
Freshwater
Read the connected field lesson →Finfish
Paddlefish / spoonbill
Polyodon spathulaLouisiana freshwater record
A plankton-filtering river fish with a long rostrum. Its familiar spoonbill nickname does not make it a catfish.
A starting pointLong, flattened paddle-shaped snout.
Freshwater
Read the connected field lesson →Finfish
Spotted gar
Lepisosteus oculatusLouisiana freshwater record
One of several Louisiana gars. The head, body and fins should be compared together, especially on young fish.
A starting pointDark spots on the head and paired fins.
Freshwater
Read the connected field lesson →Finfish
Longnose gar
Lepisosteus osseusLouisiana freshwater record
A gar recorded in Louisiana waters that should be distinguished from alligator and spotted gar.
A starting pointA particularly long, narrow snout.
Freshwater
Read the connected field lesson →Finfish
Shortnose gar
Lepisosteus platostomusLower Mississippi / Gulf drainage
Another gar to consider when the fish has a shorter snout. Use several features rather than assuming every large gar is an alligator gar.
A starting pointLacks the spotted gar’s dark head and paired-fin spots.
Freshwater
Read the connected field lesson →Finfish
Warmouth / goggle-eye
Lepomis gulosusLouisiana freshwater record
A heavy-bodied sunfish recorded in Louisiana freshwater systems. Local names can overlap, so goggle-eye is not a complete identification.
A starting pointLarge mouth; compare with green sunfish.
Freshwater
Read the connected field lesson →Finfish
Green sunfish
Lepomis cyanellusLouisiana freshwater record
A large-mouthed sunfish that can be confused with warmouth. It is one of several distinct fishes often grouped as bream.
A starting pointDark green body with turquoise markings and faint bars.
Freshwater
Read the connected field lesson →Finfish
Longear sunfish
Lepomis megalotisLouisiana freshwater record
A colorful sunfish with a conspicuous gill-cover flap. Louisiana inventories include it alongside several other bream species.
A starting pointAn elongated ear flap, often with pale edging.
Freshwater
Read the connected field lesson →Finfish
Smallmouth buffalo
Ictiobus bubalusLouisiana freshwater record
A native sucker-family fish that is sometimes mistaken for carp. The position of the mouth helps distinguish buffalo species.
A starting pointDownward-facing sucker mouth; no carp-like barbels.
Freshwater
Read the connected field lesson →Finfish
Spotted bass
Micropterus punctulatusLouisiana freshwater record
A black bass to distinguish from largemouth bass. The site’s bass lesson and agency reference explain why a familiar bass outline is insufficient.
A starting pointRows of dark spots on the lower sides; use the full bass key.
Freshwater
Read the connected field lesson →Finfish
Yellow bass
Morone mississippiensisLouisiana freshwater record
A temperate bass recorded in Louisiana freshwater systems. Compare it with white bass and young striped bass.
A starting pointYellowish belly and breaks in the lower dark stripes.
Freshwater
Read the connected field lesson →Finfish
Chain pickerel
Esox nigerLouisiana freshwater record
A freshwater predator recorded in Louisiana inventories. It belongs to the pike family, rather than the gar family.
A starting pointLarge mouth; dorsal and anal fins are far back on the body.
Freshwater
Read the connected field lesson →Sharks
Spinner shark
Carcharhinus brevipinnaHistorical Louisiana survey
A coastal and offshore shark easily confused with blacktip. Compare the first dorsal fin’s position and anal-fin markings together.
A starting pointVery similar to blacktip; compare the complete key rather than fin-tip color alone.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Sharks
Finetooth shark
Carcharhinus isodonHistorical Louisiana survey
A small-fish predator of shallow coastal water, bays and estuaries. It also eats squid and crustaceans.
A starting pointPointed snout, long gill slits and generally unmarked fins.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Sharks
Atlantic sharpnose shark
Rhizoprionodon terraenovaeHistorical Louisiana survey
A small shark whose Gulf life cycle links inshore breeding areas and deeper water. Its diet includes small fish and crustaceans.
A starting pointA slender shark with a pointed snout; adults may have white side spots.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Sharks
Bonnethead shark
Sphyrna tiburoHistorical Louisiana survey
A small hammerhead-family shark of shallow bays and estuaries. It eats crustaceans and other prey and can also consume seagrass.
A starting pointA rounded, shovel-shaped head rather than the wider hammer of larger hammerheads.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Sharks
Scalloped hammerhead
Sphyrna lewiniHistorical Louisiana survey
A Gulf hammerhead with a curved front edge to its head. Historical Louisiana nearshore nursery work recorded this species.
A starting pointAn arched hammer-shaped head with a central indentation.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Sharks
Lemon shark
Negaprion brevirostrisHistorical Louisiana survey
A yellowish to gray coastal shark with two similarly sized dorsal fins. Louisiana’s historical nearshore survey summary includes a small number of records.
A starting pointTwo similarly sized dorsal fins are a useful starting feature.
Coast & nearshore
Read the connected field lesson →Sharks
Great hammerhead
Sphyrna mokarranGulf range
A shark within the Gulf’s regional fauna. A regional range is not a verified sighting at a particular Louisiana beach or fishing site.
A starting pointNearly straight hammer front and a very tall, curved first dorsal fin.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Sharks
Tiger shark
Galeocerdo cuvierGulf range
A shark within the Gulf’s regional fauna. A regional range is not a verified sighting at a particular Louisiana beach or fishing site.
A starting pointJuvenile blotches become bars; markings can fade in adults.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Sharks
Whale shark
Rhincodon typusUnpredictable offshore occurrence
Historically recorded at Ewing Bank off Louisiana. NOAA’s 2026 account says sharks are no longer routinely seen at that former aggregation site.
A starting pointBroad head and pale spots across a dark body; it is a shark, not a whale.
Offshore Gulf
Read the connected field lesson →Rays
Atlantic stingray
Hypanus sabinusLouisiana survey record
Recorded in the same Louisiana bycatch study. A brief directory entry is not a handling guide.
A starting pointCompare the complete disc and tail with an authoritative identification reference.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Rays
Giant manta ray
Mobula birostrisRegional marine range
Included in NOAA’s Louisiana protected-marine-species consultation list. Its regional presence does not imply a predictable viewing opportunity.
A starting pointBroad wings and forward-facing head lobes; observe without pursuing.
Offshore Gulf
Read the connected field lesson →Regional offshore range
Included in NOAA’s Louisiana regional marine-species list. This is an offshore wildlife context, not a routine nearshore tour expectation.
A starting pointUse an expert cetacean reference; a distant blow is insufficient.
Offshore Gulf
Read the connected field lesson →Mammals
West Indian manatee
Seasonal visitor
A plant-eating aquatic mammal whose use of northern Gulf waters is seasonal. It is not a guaranteed year-round Louisiana sighting.
A starting pointRounded paddle-shaped tail, unlike the horizontal flukes of dolphins.
Freshwater · Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Mammals
North American river otter
Louisiana waterways
Learn to separate an otter from a muskrat or nutria before interpreting a quick surface sighting. The full lesson compares body and tail features.
A starting pointLong body and a tapering, furred tail.
Freshwater · Estuaries & brackish water
Read the connected field lesson →Introduced in Louisiana
An introduced waterside rodent with a different ecological role from an otter. A visible swimming head alone can be misleading.
A starting pointRounded, sparsely haired tail; compare body size and muzzle.
Freshwater · Estuaries & brackish water
Read the connected field lesson →Louisiana wetlands
A smaller waterside rodent often confused with nutria. Use more than size when comparing an animal seen at a distance.
A starting pointA narrow tail flattened from side to side.
Freshwater · Estuaries & brackish water
Read the connected field lesson →Louisiana marine range
One of five marine turtles listed for Louisiana by NOAA. Use the sea-turtle guide for encounters, nesting context and reporting routes.
A starting pointAn identification reference is needed to separate sea-turtle species.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Louisiana marine range
One of Louisiana’s five documented sea-turtle species. A color name alone cannot identify a turtle in the water.
A starting pointCompare shell and head features in the official turtle reference.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Regional offshore range
Part of the Louisiana regional marine fauna listed by NOAA. Offshore occurrence does not imply an accessible viewing destination.
A starting pointUse the agency turtle reference to distinguish its ridged body covering.
Offshore Gulf
Read the connected field lesson →Regional marine range
Included in NOAA’s Louisiana regional sea-turtle list. The directory establishes scope rather than predicting a local sighting.
A starting pointCompare the official species description before naming a sighting.
Coast & nearshore · Offshore Gulf
Read the connected field lesson →Louisiana estuary record
A turtle recorded in a Louisiana shrimp-fishery bycatch evaluation. Estuarine turtles need their own identification and conservation context.
A starting pointUse the turtle reference; this is not a sea-turtle species.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Louisiana freshwater
A freshwater turtle represented in Louisiana’s wildlife action plan. Observe basking turtles without collecting or disturbing them.
A starting pointUse a complete turtle key; visible head marks are only a start.
Freshwater
Read the connected field lesson →Louisiana freshwater
An aquatic turtle included in Louisiana’s wildlife action plan. Its name describes a turtle, not a young alligator.
A starting pointObserve from a distance and use an expert reference.
Freshwater
Read the connected field lesson →Louisiana wetlands
A venomous snake included in LDWF’s Louisiana snake field guide. Several nonvenomous watersnakes occupy similar settings.
A starting pointHead shape or swimming posture alone is not a dependable identification.
Freshwater · Estuaries & brackish water
Read the connected field lesson →Louisiana waterways
Louisiana has multiple watersnake species. This group entry leads to the lesson and official field guide instead of treating every swimming snake as a cottonmouth.
A starting pointCompare species using a complete key; do not handle an uncertain snake.
Freshwater · Estuaries & brackish water
Read the connected field lesson →Louisiana water life
One of the two major Louisiana crawfish species described by LSU AgCenter. Burrowing and changing water conditions are part of its life cycle.
A starting pointUse species references rather than assuming all crawfish are the same.
Freshwater
Read the connected field lesson →Louisiana water life
Another principal Louisiana crawfish species. The same pot or flooded habitat can contain more than one species.
A starting pointSpecies identification needs more than the cooked shell’s color.
Freshwater
Read the connected field lesson →Louisiana water life
A Gulf shrimp with a life cycle connected to coastal nurseries. Biology and Louisiana’s legal shrimp seasons are different questions.
A starting pointCompare the agency species account with white shrimp.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Louisiana water life
Learn oyster habitat alongside the separate rules for legal harvest areas and public-health closures. An oyster bed is not permission to harvest.
A starting pointCheck the health authority and actual area before collecting.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Louisiana estuary record
Included in the Pontchartrain estuary invertebrate guide, with records from Pontchartrain and Maurepas. This clam helps broaden the picture beyond familiar harvested shellfish.
A starting pointShell and hinge details may require a technical key.
Estuaries & brackish water
Read the connected field lesson →Louisiana estuary record
Small shrimp represented by several species in the Pontchartrain guide. They belong in the estuary picture alongside the larger penaeid shrimp.
A starting pointA group entry; species-level identification may require magnification.
Freshwater · Estuaries & brackish water
Read the connected field lesson →Louisiana estuary record
The Pontchartrain guide includes hermit crabs that occupy gastropod shells. The shell itself does not identify the crab living inside.
A starting pointLook for the crab and its appendages; leave occupied shells in place.
Estuaries & brackish water · Coast & nearshore
Read the connected field lesson →Louisiana water life
An aquatic amphibian included in Louisiana’s wildlife action plan. Frogs are part of the waterside food web as well as a regulated harvest subject.
A starting pointUse an amphibian field guide rather than identifying by a single call.
Freshwater
Read the connected field lesson →Louisiana water life
A second Louisiana aquatic frog to distinguish from the bullfrog. An entry in this directory does not establish a legal season or collection method.
A starting pointCompare the complete species account before making a harvest decision.
Freshwater
Read the connected field lesson →Louisiana species reference
Louisiana supports many distinct freshwater mussels, with different distributions. This group entry points to the state’s species and parish records.
A starting pointUse a specialist shell key; do not treat the group as edible oysters.
Freshwater
Read the connected field lesson →Louisiana species reference
A freshwater mussel endemic to streams in central Louisiana. Its narrow distribution makes it a useful example of why a statewide species name is not a statewide range.
A starting pointObserve habitat without collecting or disturbing mussels.
Freshwater
Read the connected field lesson →Louisiana species reference
A coastal bird featured by Breton National Wildlife Refuge. Learn the bird and coastal habitat without approaching nesting areas.
A starting pointUse a bird field guide; this category drawing is not a species key.
Coast & nearshore
Read the connected field lesson →Louisiana species reference
One of the bird species featured by Breton National Wildlife Refuge. It belongs in the water-life picture alongside fish and marine mammals.
A starting pointUse a bird field guide; this category drawing is not a species key.
Coast & nearshore
Read the connected field lesson →Louisiana species reference
A coastal bird featured by Breton National Wildlife Refuge. Use the birdwatching lesson to plan observation around the actual refuge’s rules.
A starting pointUse a bird field guide; this category drawing is not a species key.
Coast & nearshore
Read the connected field lesson →