Demand for this tasty fish in seafood and sushi markets has grown much faster than the supply from wild fisheries. In an attempt to meet this high demand, NOAA researchers evaluated the potential of black sea bass for commercial aquaculture and found promising results - black sea bass can be grown from larvae to adults in recirculating aquaculture systems, eating a diet of commercial pellet feeds. They recommend that future aquaculture research efforts focus on understanding the factors that control growth - investigating optimal culture temperatures, lighting conditions, reproductive physiology, and the nutritional requirements of various life stages of black sea bass.
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LAUNCH THE MAPBlack Sea Bass
Centropristis striata
ALSO KNOWN AS:
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Sea Bass, Blackfish, Rock Bass, Black Bass, Tallywag
SOURCE:
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U.S. wild-caught from Massachusetts to the west coast of Florida
STATUS
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POPULATION
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FISHING RATE
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HABITAT IMPACTS
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BYCATCH
Click the icons to learn more about each criteria
OVERVIEW
A relative of grouper, the mild, slightly delicate-tasting black sea bass is a popular commercial and recreational species along the East Coast. There are two separate stocks of black sea bass in the Atlantic, roughly divided at Cape Hatteras, North Carolina. Declared overfished in 2000, the Mid-Atlantic stock (north of Cape Hatteras) has recovered and is now rebuilt, thanks to improved reproduction and growth rates and strict regulations that reduced fishing pressure on the stock.
In 2005, scientists found that the South Atlantic stock (south of Cape Hatteras) was below target population levels (overfished) and fishing rates were too high (overfishing). Managers implemented a rebuilding plan for this stock in 2006. A rebuilding plan is the management strategy designed to allow a stock to recover within a specific period of time. Under this plan, black sea bass is gradually recovering. In fact, the latest scientific assessment in 2011 shows the stock is no longer overfished but not yet fully rebuilt. Fishing rates are still too high, and managers have implemented several measures to end overfishing. There's now a strict limit on how much black sea bass can be caught in both the commercial and recreational fisheries. When the commercial limit is met, all harvest of the fish is restricted and purchase and sale of the fish is prohibited. When the recreational limit is projected to be met, the recreational sector is closed.
Looking Ahead
This Just In
LOCATION & HABITAT
Black sea bass are found along the U.S. East Coast from Cape Cod to the Gulf of Mexico. They prefer structured habitats such as reefs, wrecks, or oyster beds in temperate and subtropical waters. In the Mid-Atlantic (north of Cape Hatteras, North Carolina), black sea bass migrate seasonally as water temperature changes. They generally migrate to inshore coastal areas and bays in the spring and offshore in the fall. In the South Atlantic, black sea bass do not travel far.
BIOLOGY
Black sea bass grow slowly, up to 2 feet and 9 pounds. They’re able to reproduce when they reach 2 to 3 years old. Black sea bass are “protogynous hermaphrodites” – most black sea bass start out as females, and as they mature and grow, they become males. Researchers aren’t sure why this happens, but one hypothesis suggests the relative scarcity of males in a spawning group may be the stimulus for a female to switch sex.
Black sea bass spawn in coastal areas from January through July. During spawning season, male black sea bass turn bright blue and develop a pronounced blue hump on their heads. They gather a group of females to mate with and aggressively defend their territory. Depending on their size, females can produce between 30,000 and 500,000 eggs in a spawning season. Females can live up to 8 years; males live up to 12.
Black sea bass often eat whatever prey is available, but they especially like crabs, shrimp, worms, small fish, and clams. Little skate, spiny dogfish, monkfish, spotted hake, and summer flounder all feed on black sea bass.
PHYSICAL DESCRIPTION
Large black sea bass are black; smaller ones are more of a dusky brown. The belly is slightly paler than the sides. The fins are dark with dusky spots, and the dorsal fin is marked with a series of white spots and bands. During spawning, dominant males turn bright blue and have a blue hump on their heads.
OVERVIEW
In the Mid-Atlantic, scientists at the NOAA Northeast Fisheries Science Center conduct bottom trawl surveys to estimate the abundance of black sea bass and other species.
In the South Atlantic, scientists, managers, and stakeholders assess the status of these stocks through the Southeast Data, Assessment, and Review (SEDAR) process.
POPULATION STATUS
The Mid-Atlantic black sea bass stock is currently above its target population level. The South Atlantic stock is no longer overfished but is still rebuilding to the target population level.
ADDITIONAL RESEARCH
Under the Mid-Atlantic Research Set-Aside Program, a small percentage of the allowed black sea bass harvest is set aside each year to fund black sea bass and habitat research and surveys to inform future management decisions. Participating fishing vessels use the proceeds of their harvest to fund this research. Projects conducted include gear research to minimize bycatch of undersized black sea bass and research to improve stock assessment data.
In the past, NOAA Fisheries, state fishery agencies, and commercial and recreational fishermen ran the Cooperative Black Sea Bass Tagging Project to examine the population size, exploitation rate, and seasonal movements of the northern Atlantic coast black sea bass.
Harvesting Black Sea Bass
In the Mid-Atlantic, fisheries for black sea bass change seasonally with the species’ seasonal migrations – when they’re inshore, commercial fishermen catch them primarily with fish pots (both baited and unbaited) and handlines. Recreational fishermen also fish for black sea bass when they’re inshore. Once they move offshore in the winter, they’re caught in the trawl fishery that targets summer flounder, scup, and Loligo squid. Handline and pot fisheries in the southern areas sometimes still operate during this offshore period.
In the South Atlantic, fishermen harvest black sea bass with pots and sometimes handlines. Trawling has been banned in the South Atlantic since 1989.
Management
Along the East Coast, black sea bass are divided into two stocks for management purposes. The stock north of Cape Hatteras, North Carolina, migrates seasonally and the southern stock doesn’t migrate.
Who’s in charge? North of Cape Hatteras: Mid-Atlantic Fishery Management Council and the Atlantic States Marine Fisheries Commission; south of Cape Hatteras: South Atlantic Fishery Management Council. The Councils and Commission develop fishery regulations for black sea bass; NOAA Fisheries implements and enforces these regulations.
Current management: Summer Flounder, Scup, and Black Sea Bass Fishery Management Plan (fisheries north of Cape Hatteras)
- Annual coastwide quota divided between the commercial and recreational fisheries; the commercial quota is further divided among the states based on historical harvests.
- Specific management measures for the commercial fishery are set by each state; they include minimum size limits, minimum mesh requirements for trawls, a moratorium on entry into the fishery, and closed seasons.
South Atlantic Snapper-Grouper Fishery Management Plan (fisheries south of Cape Hatteras)
- Fishermen must have a permit to harvest black sea bass, and a limit on the number of permits controls participation in the fishery.
- Annual commercial harvest quota; commercial fishing for black sea bass is prohibited when the quota is projected to be met. If annual catch exceeds the limit, the overage is taken out of the following year's quota.
- Limit on how much commercial fishermen can harvest per fishing trip.
- Minimum size limit.
- Gear restrictions, including a minimum size for mesh on black sea bass pots to reduce catch of undersized black sea bass.
- Pots only allowed north of Cape Canaveral, Florida, to prevent adverse impacts on live-bottom habitat. Pots be brought to shore at the end of each trip to reduce bycatch and impacts to habitat.
Annual Harvest
In the Mid-Atlantic, the commercial harvest has remained relatively steady since the 1970s, averaging around 1,400 metric tons. In the past decade, recreational fisheries have accounted for at least half of total harvest by weight, averaging 1,600 metric tons annually. However, in 2010, commercial landings totaled only 751 metric tons and were far surpassed by recreational landings, which totaled 1,351 metric tons. Managers were concerned with the degree of uncertainty in the most recent stock assessment and imposed conservative quotas on the commercial and recreational fisheries. The commercial fishery is controlled in real time, so once the quota is met they shut down. The recreational fishery is evaluated after the season and any overage is reflected in the following year’s quota.
In the South Atlantic, commercial and recreational fisheries contribute fairly equally to the total black sea bass harvest. In the 2010/2011 fishing year, commercial fishermen harvested over 323,000 pounds and in the 2011/2012 fishing year they harvested over 308,000 pounds. Recreational fishermen landed over 476,000 pounds during the 2010/2011 season.
Economy
Black sea bass, a small, plump fish related to grouper, is one of the most important commercial bass species. The United States is the only source for this fish.
Recreational
In the Mid-Atlantic and South Atlantic, regulations for the recreational fishery include a minimum size limit, fishing season, and daily and yearly catch limits.
OVERVIEW
Black sea bass is often confused with striped bass or tautog, which is also called blackfish. Black sea bass has a mild, fresh, somewhat delicate flavor and a tender but firm texture. Uncooked flesh should be sparkling white and translucent. The meat is snow white when cooked. Black sea bass is one of the best small fish to bake or grill whole, but be careful handling whole fish - a jab from the dorsal-fin spines can be very painful. (Seafood Business, 2011)
SEASONAL AVAILABILITY
Generally year-round, but varies by state
NUTRITION
Black sea bass is a good low-fat source of protein and magnesium.
| Servings | 1 |
| Serving Weight | 100 g (raw) |
| Calories | 97 |
| Protein | 18.43 g |
| Fat, total | 2 g |
| Saturated fatty acids, total | 0.511 g |
| Carbohydrate | 0 g |
| Sugars, total | 0 g |
| Fiber, total dietary | 0 g |
| Cholesterol | 41 mg |
| Selenium | 36.5 mcg |
| Sodium | 68 mg |
Black Sea Bass Table of Nutrition
RECIPES
Related Links
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NOAA Northeast Fisheries Science Center Cooperative Black Sea Bass Tagging Project (PDF)
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Summer Flounder, Scup, and Black Sea Bass Fishery Management Plan
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Fishery Management Plan for the Snapper Grouper Fishery of the South Atlantic
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South Atlantic Fishery Management Council Fish ID and Regulations for Black Sea Bass
