Growth of white shrimp (Penaeus setiferus) over a six-week period in an artificial environment. These shrimp were "farmed' in a fertilized brackish water pond at the BCF Laboratory in Galveston. BCF scientists were working toward developing an economical, prepared food that will sustain rapid growth of shrimp in ponds.

Length of fully grown brown shrimp (Penaeus aztecus)

Brown shrimp (Penaeus aztecus) first mysis, 0.12 inch long about nine days after hatching.

Brown shrimp (Penaeus aztecus) fifth nauplius, 0.02 inch long, about two days after hatching.

Shrimp entangled by its numerous spines in extra mesh twines of Guthrie improved net.

Shrimp product value lessened by injury during capture

Shrimp caught in Gulf of Mexico

Large brown-grooved shrimp from the Mississippi Delta fishing grounds trawled by the FWS fisheries ship OREGON

Shrimp catch

Brown shrimp

Spanish mackerel (Scomberomorus maculatus)

Sheepshead (Archosargus probatocephalus) from drawing by H. L. Todd

Bluefish (Pomatomus saltatrix) from drawing by H. L. Todd.

Sheepshead (Archosargus probatocephalus) from drawing by H. L. Todd

Sheepshead (Archosargus probatocephalus) from drawing by G. T. Sundstrom

Sheep-head (Pacific) male (Pimelometopon pulchrum) from drawing by G. T. Sundstrom.

Sheefish from George River, Alaska.

Sheefish from George River, Alaska. close-up of mouth.

Drying sheefish

Drying sheefish

Drying sheefish

Drying sheefish

Drying sheefish

Anchor being retrieved on FWS patrol vessel SHEARWATER II. Frank Beals, manager of the Kodiak Wildlife Refuge, handles the line.

Black-spot disease in shrimp.

Apparatus used in shrimp respiration studies

Respiration studies with Warburg respirometer. Zoula Zein-Eldin is the researcher in the photo who had an illustrious fifty-year career at the Galveston Laboratory NMFS Laboratory, retiring on July 7, 2004.

By controlling temperature, food, and the quality of water, brown shrimp were reared in the laboratory from egg to juvenile stage.

Reward poster for return of stained shrimp

Shrimp marking

BCF biologist measures length of shrimp from market sample at Gulf coast port. Large amounts of data on sizes and kinds of shrimp entering commercial landings are used in research to determine the present and future status of Gulf Coast shrimp resources.

Life cycle of shrimp. Spawned in the ocean, the larvae migrate to inshore nursery areas. As the shrimp grow, they return to sea where they comprise one of the most valuable of commercial fisheries.

Larval stages of the white shrimp (Penaeus setiferus)

Larval stages of the white shrimp (Penaeus setiferus)

Rechecking dimensions of marked shrimp recovered during mark- recapture experiment undertaken to evaluate rate of shrimp growth. Shrimp Dynamics Program.

Shrimp

Preparing paper chromatograms for identification of shrimp postlarvae.

Sampling to determine food consumption of isolated shrimp

Shrimp staining

Marking shrimp with tags and biological stains provides BCF scientists with information on migrations, growth, age, and fishing and natural mortality rates.

Water table and water treatment apparatus used in larval shrimp rearing studies.

Zeula Zein-Eldin adds water to containers used to rear larval shrimp

Measuring shrimp caught in research trawl

Diagram of the life cycle of the white shrimp

A school of dogfish sharks

A school of dogfish sharks

Dead porpoise being eaten by sharks under a cloud of dissolved bluestone.

Spinner or large blacktip sharks, some 7-footers, follow a shrimp boat to feed on bycatch thrown overboard during shrimping operations

Hoisting sandbar shark, Carcharhinus milberti, aboard shark fishing vessel

A commercial fisherman off the east coast of Florida preparing to remove the hook from the jaw of a 12-foot tiger shark