Scup
Scup (Stenotomus chrysops) is a temperate marine fish belonging to the family Sparidae (porgies), characterized by its compressed body, small mouth, and silvery coloration with dark bars.[1] Native to the western Atlantic Ocean, it ranges from Nova Scotia, Canada, to Florida, United States, though it is rare south of North Carolina.[1] This demersal species inhabits sandy, muddy bottoms, mussel beds, and areas with rocky structures or eelgrass, typically at depths from 15 to 200 meters.[2][3] Adults commonly reach lengths of 25 cm, with a maximum of 46 cm and weight up to 2.1 kg, maturing at around 15.5 cm.[1] Scup exhibit migratory behavior, schooling in inshore waters from early spring to fall along the U.S. East Coast, particularly from Massachusetts to South Carolina, before shifting to offshore continental shelf habitats in winter, south of New York to North Carolina.[3] Juveniles favor estuaries and bays with salinities above 15 ppt and temperatures over 45°F, settling on substrates like sand, mud, and mussel beds for foraging and shelter.[3] Their diet consists primarily of benthic invertebrates, including amphipods, polychaete worms, sand dollars, and juvenile squid.[1] Reproduction occurs from May to August in coastal waters of southern New England to Virginia, where eggs and larvae develop in estuarine "mixing" and "seawater" zones at temperatures of 55–73°F.[3] Economically significant, scup supports both commercial fisheries—harvested for fresh, smoked, or frozen markets—and recreational angling, with management overseen by the Mid-Atlantic Fishery Management Council.[1] Current stock assessments indicate it is not overfished, with no overfishing occurring as of the 2025 assessment.[3][4] Essential fish habitat protections, established under Amendment 12 in 1999, encompass key areas for all life stages to sustain populations.[3]Taxonomy
Scientific classification
The scup, scientifically known as Stenotomus chrysops (Linnaeus, 1766), belongs to the family Sparidae, which encompasses porgies and seabreams.[5] Its full taxonomic hierarchy is as follows:| Rank | Taxon |
|---|---|
| Kingdom | Animalia |
| Phylum | Chordata |
| Class | Actinopterygii |
| Order | Spariformes |
| Family | Sparidae |
| Genus | Stenotomus |
| Species | S. chrysops |
Etymology and common names
The scientific name of the scup is Stenotomus chrysops. The genus name Stenotomus, established by Theodore Nicholas Gill in 1865, derives from the Greek words stenos (narrow) and tomos (cutting), referring to the species' narrow incisors.[11] The specific epithet chrysops combines the Greek chrysos (gold) and ops (eye or face), alluding to the golden iridescent markings around the eyes and on the head.[12] The primary common name "scup" originates from the Narragansett language, an Algonquian dialect spoken by indigenous peoples of the northeastern United States; it is a shortened form of mishcuppaug (or variants like mishcùppaûog), which translates to "thick-scaled" or "large, closely scaled," describing the fish's robust, adherent scales.[13] This name was documented in early colonial records, such as Roger Williams' 1643 A Key into the Language of America, where he referred to the fish as "mishcup" while noting its use by Native Americans.[14] In addition to "scup," the fish is widely known as "porgy" or "northern porgy," an English adaptation of the Spanish pargo (referring to sea breams in the family Sparidae), which entered American English through colonial trade and fishing contexts in the mid-Atlantic and southern regions.[13] Regional market variations include "fair maid" or "maiden" in the Chesapeake Bay area, "ironsides" in some New England fisheries due to the fish's tough body, and "sea bream" in commercial settings to evoke European sparid species.[15] These names reflect the scup's broad distribution along the Atlantic coast and its historical role in both subsistence and market fisheries.[16]Physical characteristics
External morphology
The scup (Stenotomus chrysops) possesses an ovate-elliptical body that is deep and laterally compressed, with a steep forehead profile formed by a convex nape and a strong depression anterior to the dorsal fin origin.[17][18] The body coloration is predominantly silvery, with the back and upper sides exhibiting a grayish to brownish hue often tinged with bluish or greenish iridescence; the belly is white, and faint pale vertical bars may appear along the sides, particularly in younger individuals.[15][19][18] The head features iridescent blue-green markings, with faint blue spots and a blue patch above and behind each eye.[20] The head is short and blunt, bearing a small terminal mouth with a narrow gape.[18] The jaws contain small, incisiform front teeth arranged in close-set bands for grasping prey, with the outer band teeth enlarged, compressed, and narrower at the base; laterally, there are two rows of molar-like teeth for crushing hard-shelled organisms.[18][21] The dorsal fin is long and continuous, typically with 12 spines and 12 soft rays.[17][22][23] The anal fin includes 3 spines and 11 to 12 soft rays, the pectoral fins are elongated and extend beyond the dorsal fin origin, and the caudal fin is forked.[17][22][23] Adult fins are mottled with dark brown, while those of juveniles may show faint barring.[15] The body is covered with relatively large, ctenoid scales that are thick and firmly adherent.[18]Size, growth, and lifespan
Scup (Stenotomus chrysops) attain a maximum total length of 46 cm and a maximum reported weight of 2.1 kg.[1] Individuals commonly encountered in commercial and recreational fisheries typically measure 20–30 cm in total length and weigh 0.2–0.5 kg.[15][24] Growth in scup follows the von Bertalanffy model, derived from length-at-age data obtained through otolith analysis.[25] For males, the asymptotic length (L∞) is approximately 34.3 cm with a growth coefficient (K) of 0.27 year−1; for females, L∞ is 37.4 cm and K is 0.23 year−1.[25] Juvenile growth is relatively rapid, with fish reaching 10–15 cm fork length by age 1, after which the rate slows in adults as energy allocation shifts toward maintenance and reproduction.[26] The lifespan of scup extends up to 19–20 years in the wild, as determined by counting annuli in otoliths.[1][2] Sexual maturity is typically reached at age 2, when females measure about 16.3 cm and males 15.6 cm in length; females exhibit slight sexual dimorphism by attaining marginally larger sizes at maturity.[27][1]Distribution and habitat
Geographic distribution
The scup (Stenotomus chrysops) inhabits the western North Atlantic Ocean, with its overall range extending from Nova Scotia, Canada, southward to South Carolina, United States, though records become rare south of North Carolina.[1] Occasional vagrants have been documented as far south as Florida, but these sightings are infrequent and do not indicate established populations.[27] The species is absent from established populations outside this native range, including failed introduction attempts in Bermuda. The core population is concentrated in the Mid-Atlantic Bight, spanning from Cape Cod, Massachusetts, to Cape Hatteras, North Carolina, where the species is most abundant.[28] Highest densities occur off the coasts of New England and New York, as evidenced by commercial and recreational catch data from these regions.[15] Scup is assessed and managed as a single stock from Maine to Cape Hatteras, North Carolina.[15] Scup exhibit distinct seasonal migrations driven by temperature changes. In winter, they migrate offshore to deeper waters (typically 50-150 meters) from southern New Jersey to Cape Hatteras, where they overwinter in cooler, stable conditions.[29] As water temperatures rise in spring, scup undertake an inshore migration northward, reaching their northern range limits by summer and residing in coastal areas through the warmer months.[30] By fall, they begin an offshore exodus southward, returning to wintering grounds as temperatures decline.[23] These movements align with the species' preference for waters above 7°C, influencing their annual distribution patterns.[23]Habitat requirements
Scup primarily occupy demersal habitats on the continental shelf in temperate western North Atlantic waters, with environmental preferences centered on moderate depths, soft substrates, and stable water quality parameters. They thrive in areas with bottom temperatures ranging from 5 to 25°C (41 to 77°F), salinities of 25 to 35 ppt, and dissolved oxygen concentrations exceeding 4 mg/L, conditions that support their physiological needs across life stages.[26] Habitat utilization differs markedly by developmental phase, reflecting adaptations to vulnerability, foraging, and migration. Eggs and larvae are pelagic, drifting in the upper water column over the inner continental shelf in coastal waters typically shallower than 50 m, where temperatures span 13 to 23°C and salinities exceed 15 ppt for optimal development.[26][27][31] Juveniles transition to shallow, nearshore environments in estuarine and inshore bays, such as Long Island Sound, at depths under 20 m on sandy or muddy bottoms often associated with eelgrass beds or other vegetation for shelter. These young fish prefer high-salinity waters (30 to 35 ppt) and temperatures ranging from 5 to 27°C, with summer peaks at 16-22°C, to support growth and avoid predation.[26][32] Adults are demersal, inhabiting the continental shelf at depths of 10 to 150 m (33 to 492 ft), where they associate with sandy or muddy substrates near structural features like shipwrecks, natural reefs, or mussel beds that provide cover and prey access. Optimal conditions mirror those of juveniles but extend to cooler shelf breaks, with peak abundance in waters of 13 to 16°C.[26][30][2]Biology and behavior
Reproduction and life cycle
Scup engage in broadcast spawning, with external fertilization occurring when females release eggs and males simultaneously release milt in coastal waters over sandy or gravel bottoms. The spawning season in the Mid-Atlantic region spans May to August, peaking in June when water temperatures exceed 10°C.[15][28] This activity takes place in nearshore areas, including large bays and sounds from New Jersey to Massachusetts.[28] Females are batch spawners, releasing eggs in multiple batches over the season, with an average annual fecundity of approximately 7,000 pelagic eggs per female.[33] The eggs are small (0.85–1.15 mm diameter), transparent, spherical, and buoyant, hatching in 2–4 days.[28][23] Upon hatching, scup larvae measure approximately 2 mm and remain pelagic in coastal waters, feeding on small zooplankton within 2–3 days post-hatch and drifting toward estuarine areas for 2–4 weeks.[28][23] Metamorphosis to the juvenile stage occurs at 10–15 mm total length, with settlement to inshore bottom habitats by early July at sizes of 15–30 mm.[28] Juveniles recruit to adult habitats around age 1 year. Sexual maturity is attained by about 50% of females at age 2 (approximately 20 cm total length) and by males at age 3.[15] The overall sex ratio is nearly 1:1, though females tend to dominate in older age classes due to differential mortality patterns.[34]Diet and feeding habits
Scup primarily consume benthic invertebrates, with crustaceans such as amphipods, shrimp, and crabs forming the largest portion of their diet at approximately 40-55% by weight, depending on region and size class.[23] Mollusks, including clams and mussels, contribute around 13-30% of the diet, while polychaete worms account for 17-47%, alongside smaller amounts of small squid, detritus, and occasional fish larvae.[23][35] These proportions reflect opportunistic bottom feeding, where prey availability in sandy or muddy substrates influences composition.[35] Feeding is predominantly bottom-oriented and occurs during daytime, relying on visual foraging to locate prey on or near the seabed.[35] Scup utilize specialized pharyngeal teeth to crush hard-shelled items like mollusks and crustaceans, enabling efficient processing of benthic resources.[23] Juveniles, typically under 10 cm, shift toward more planktonic prey, consuming higher proportions of mysids, copepods, and insect larvae (up to 40-55% arthropods overall), which supports their early growth in estuarine and nearshore environments.[23][35] Seasonal variations occur, with increased mollusk intake (e.g., bivalves) in spring and summer, alongside sustained polychaete and crustacean consumption, aligning with higher prey densities and metabolic demands.[36][23] As mesopredators, scup occupy a trophic level of approximately 3.5-3.8, determined from diet composition analyses across northwest Atlantic studies.[37][38] This position underscores their role in linking primary consumers to higher trophic levels through selective predation on infaunal and epibenthic communities.[39]Predators and ecological interactions
Scup (Stenotomus chrysops) face predation pressure across life stages from a diverse array of marine predators, primarily elasmobranchs and bony fishes. Adults are consumed by at least 19 species, with the most frequent including smooth dogfish (Mustelus canis), spiny dogfish (Squalus acanthias), bluefish (Pomatomus saltatrix), striped bass (Morone saxatilis), black sea bass (Centropristis striata), and summer flounder (Paralichthys dentatus), as well as sharks like sandbar shark (Carcharhinus plumbeus) and dusky shark (Carcharhinus obscurus), silver hake (Merluccius bilinearis), weakfish (Cynoscion regalis), and goosefish (Lophius americanus). Juveniles experience heightened vulnerability to these piscivores, in addition to invertebrate predators such as crabs and avian predators including shorebirds. Larvae suffer intense predation from planktonic organisms like medusae, ctenophores, chaetognaths, crustaceans, and small fishes, contributing to high mortality rates during the early pelagic phase.[23][26][2][15] Predation rates on scup vary by size class and predator, with larvae facing near-total attrition from diffuse planktivory, while juveniles and adults form a notable component of piscivore diets in coastal and shelf ecosystems. For instance, scup constitute 4.7% by weight in the diet of black sea bass, and broader analyses indicate adults can comprise 10-20% of the diet for select predators like bluefish and weakfish in regions of overlap. This top-down pressure shapes scup population dynamics, with juveniles particularly susceptible during inshore settlement, where predation can exceed 80% annually in some cohorts due to larger fishes and birds.[26][40][33] As a key forage species, scup play a vital ecological role in linking benthic primary production—through their consumption of invertebrates and small fishes—to higher trophic levels, supporting piscivores and maintaining energy flow in mid-Atlantic shelf ecosystems. Their abundance and distribution serve as indicators of continental shelf health, reflecting responses to environmental changes like temperature shifts and prey availability. Scup occasionally exhibit cannibalistic behavior, particularly larger individuals preying on juveniles, though this is infrequent. They also compete with other sparids, such as tautog (Tautoga onitis) and sheepshead (Archosargus probatocephalus), for shared benthic resources like crustaceans and mollusks in estuarine and nearshore habitats. Additionally, scup host various parasites, including trematodes like those in the family Lepocreadiidae and branchiurans such as Argulus inexpectatus, but these generally exert low population-level impacts due to moderate prevalence.[26][2][23][41]Fisheries
Commercial fishing
The commercial fishery for scup (Stenotomus chrysops) is one of the oldest in the United States, with documented harvests dating back to colonial times.[42] Landings peaked in 1960 at approximately 48.9 million pounds (22,200 metric tons), driven by high demand and unrestricted fishing effort along the Atlantic coast.[29] By the late 1980s, annual commercial landings had stabilized between 8.8 and 21.7 million pounds, but intense fishing pressure in the 1990s led to a sharp decline, with catches dropping to a low of 2.7 million pounds by 2000 due to overfishing and reduced stock biomass.[2][43] Commercial harvesting primarily employs bottom otter trawls, which account for about 84% of landings, targeting scup on continental shelf bottoms at depths of 50-150 feet.[43] Other methods include fish pots and traps (7% of catch), gillnets, and handlines, with seasonal variations favoring traps in inshore areas and trawls offshore.[2] Bycatch in these operations commonly includes summer flounder, little skate, spiny dogfish, and northern sea robin, though observer data from 2019-2023 indicate these species comprise less than 10% of total catch, mitigated by gear restrictions in sensitive areas.[43] In 2023, U.S. commercial landings totaled 13.01 million pounds (approximately 5,900 metric tons), representing 93% of the annual quota and valued at $8.18 million ex-vessel.[43] In 2024, landings increased to 14.50 million pounds (approximately 6,600 metric tons), representing 69% of the quota.[44] Major landing ports include Point Judith, Rhode Island (29% of total), Montauk, New York (19%), and Cape May, New Jersey (13%), reflecting the fishery's concentration in the Mid-Atlantic region.[43] The market is predominantly domestic, with scup sold fresh or frozen as fillets or whole fish under names like porgy, though limited exports occur to Europe where it is marketed as sea bream.[2]Recreational fishing
Scup represent a significant component of the recreational fishery in the Northeast United States, particularly valued as a gamefish by surf casters and boat anglers in southern New England and the Mid-Atlantic region. They are highly sought after for their abundance, schooling behavior, and fighting spirit on light tackle, contributing to their popularity among hobbyist anglers.[15][4] Annual recreational harvest of scup typically ranges from 10 to 20 million fish, with 12.85 million landed in 2023 alone according to Marine Recreational Information Program (MRIP) estimates from Maine to North Carolina. In 2024, recreational harvest was approximately 11 million pounds, equivalent to about 11-15 million fish.[43][45][4] This harvest underscores the species' importance to the sport fishery, where party boats provide accessible opportunities for anglers to target schools over wrecks and structures.[43] Common techniques for recreational scup fishing involve bottom rigs with baited hooks, using natural baits such as squid strips, clams, or sandworms to entice bites from the schooling fish. Light tackle with 10- to 20-pound test line is standard, allowing for sensitive presentations, while chumming with crushed clams or mussels helps concentrate schools around the boat or structure. Party boats are particularly popular for this fishery, enabling groups to fish wrecks and reefs efficiently during half- or full-day trips.[46][47] The peak inshore season for scup runs from June to August, when migratory schools move close to shore in warm waters, though they can be caught from May through October in northern areas. Prime locations include the waters around Cape Cod in Massachusetts, the New Jersey coastline, and Chesapeake Bay in the southern portion of their range, where structures like jetties, piers, and artificial reefs attract concentrations of fish.[48][33] The International Game Fish Association (IGFA) all-tackle world record for scup stands at 2.06 kg (4 lb 8 oz), caught in Nantucket Sound, Massachusetts, in June 1992.[23]Management and conservation
Regulatory measures
The scup fishery is jointly managed by NOAA Fisheries and the Mid-Atlantic Fishery Management Council in federal waters of the exclusive economic zone, while the Atlantic States Marine Fisheries Commission coordinates interstate management in state waters, with implementation by state marine fisheries commissions in Massachusetts, Rhode Island, Connecticut, New York, New Jersey, Delaware, Maryland, Virginia, and North Carolina.[49][50] The Summer Flounder, Scup, and Black Sea Bass Fishery Management Plan, adopted through Amendment 8 in 1996, provides the framework for these efforts, establishing catch limits, size restrictions, and gear requirements to prevent overfishing.[4][51] Key regulations include a minimum size limit of 9 inches (23 cm) total length for commercial harvest and 10 inches for recreational fishing in federal waters, with states often aligning or adjusting slightly for consistency.[52][53] Seasonal closures, such as November through April in some state waters (e.g., January–April recreational in Rhode Island), help manage quotas and protect overwintering aggregations, while recreational bag limits vary by state from 30 to 50 fish per person per day, with a federal possession limit of 40 fish.[54][55] For 2025, the commercial annual catch target (ACT) is 65% of the acceptable biological catch (ABC), with the commercial quota set at 19.54 million pounds (8,865 metric tons) after subtracting projected discards, and 35% allocated to the recreational ACT.[56][57] The commercial quota is divided into three seasons: Winter I (45.11%, January-April), Summer (38.95%, May-September), and Winter II (15.94%, October-December), with state-specific shares applying only to the Summer quota—for example, Rhode Island receives 56.2% and Massachusetts 21.6%.[58][49] Trip limits for federally permitted vessels are 50,000 pounds per trip in Winter I and 15,000 pounds in Winter II, while Summer harvests are capped by state quotas without federal trip limits.[59][60] In September 2025, the Winter II quota was increased by 1,047,723 lb (475,260 kg) to 4,162,331 lb (1,888,020 kg) due to rollover of unused Winter I quota, with the possession limit raised to 15,000 lb (6,804 kg).[61] Enforcement is facilitated through vessel monitoring systems required on federally permitted vessels longer than 50 feet, mandatory electronic logbooks for all commercial trips to track landings against quotas, and at-sea observer programs to assess bycatch rates.[62][63] NOAA Fisheries provides weekly quota monitoring updates, and states submit annual compliance reports to ASMFC by June 1.[49] Framework adjustments and addenda to the FMP, such as minimum mesh sizes of 5.5 inches for otter trawls, have been implemented to reduce bycatch of juvenile scup and non-target species.[51][64]Population status and threats
The scup (Stenotomus chrysops) population is classified as Near Threatened by the IUCN Red List, with the assessment conducted in 2011 based on observed declines due to historical overexploitation and potential ongoing pressures.[1] In the United States, the National Oceanic and Atmospheric Administration (NOAA) determined the stock to be overfished in 1996 following severe reductions in spawning stock biomass during the late 1980s and early 1990s, when commercial landings peaked at over 15 million pounds in 1991 before plummeting to historic lows by the mid-1990s.[15][2] Overfishing in the late 1980s and early 1990s reduced spawning stock biomass by approximately 97%, reaching historic lows in the late 1990s; subsequent management led to a roughly 30-fold increase in biomass through the 2000s under reduced fishing pressure.[65] The stock was successfully rebuilt ahead of schedule in 2009, and the 2023 management track assessment confirmed it remains not overfished, with spawning stock biomass estimated at 193,087 metric tons in 2022—246% of the target biomass (SSBMSY proxy of 78,593 metric tons)—while fishing mortality remains below sustainable levels (F < FMSY).[15][66] Beyond historical overfishing, current threats to scup populations include habitat degradation from bottom trawling, which disturbs benthic communities in the species' preferred sand and mud substrates along the Mid-Atlantic shelf, though these habitats show relative resilience compared to more structured environments.[2] Climate change exacerbates vulnerability through warming waters that have driven northward shifts in scup distribution, particularly during spring migrations on the Northeast U.S. shelf, potentially altering seasonal habitat availability and spawning success.[28] Bycatch in non-selective trawl gears, such as those targeting Loligo squid, continues to impact juvenile and sub-legal scup, with discard rates historically contributing significantly to total removals before regulatory modifications like excluder devices reduced incidental capture.[67] Additionally, pollution in coastal estuaries—where scup larvae settle and rear—poses risks through contaminants like heavy metals and organic pollutants, which have been linked to fin rot and other sublethal effects in juvenile stages exposed via contaminated prey or direct contact.[26] Population monitoring relies on annual stock assessments coordinated by NOAA and the Mid-Atlantic Fishery Management Council, incorporating commercial and recreational catch data, fishery-independent surveys, and age-structured models such as virtual population analysis (VPA) to estimate biomass trends and reference points.[68] Recruitment variability, a key driver of stock fluctuations, is strongly tied to environmental factors including water temperature and prey availability, which influence larval survival and year-class strength, as observed in interannual shifts in catch rates and distribution.[68] These assessments highlight the stock's recovery but underscore the need for ongoing vigilance against non-fishing stressors to maintain sustainability.Culinary aspects
Preparation and cooking
Scup possesses firm, flaky white flesh with a mild, sweet flavor reminiscent of shrimp, making it versatile for various culinary applications.[69] Its lean texture and relatively low bone content allow for easy preparation when cooked whole, though the small bones can make filleting challenging.[70] To preserve quality, scup should be bled immediately after capture by cutting the gills or throat while the heart is still pumping, then placed on ice to cool rapidly and maintain freshness.[71] Before cooking, scale and gut the fish thoroughly, as this removes impurities and enhances the sweet flavor.[33] Common preparation methods emphasize simple techniques that highlight the fish's delicate taste. Pan-frying or deep-frying yields a crispy exterior while keeping the interior moist, often seasoned with salt and pepper.[72][73] Broiling or grilling whole scup with herbs, lemon, or olive oil adds a charred smokiness, and baking with basil and white wine creates a tender, aromatic dish.[74][75] For lighter options, scup can be served raw as crudo or in sushi, known as "orata Americana," where thin slices showcase its subtle sweetness.[69] In regional cuisine, scup features prominently in New England clam bakes, where whole fish are steamed with clams, corn, and potatoes over hot rocks for a communal seaside meal.[76] Along the Long Island coast, it is prepared Mediterranean-style as "Montauk sea bream," roasted whole with olive oil, garlic, and herbs to emphasize its flaky texture and shrimplike notes.[69]Nutritional profile
Scup (Stenotomus chrysops) is a nutrient-dense seafood option, providing a low-calorie source of high-quality protein when cooked. Per 100 grams of scup cooked by dry heat, it contains 123 calories, 23.7 grams of protein, 2.47 grams of total fat (including 0.57 grams of saturated fat), and 0 grams of carbohydrates. This macronutrient profile makes it a lean protein that supports muscle maintenance and satiety without contributing significant dietary carbohydrates or excess calories.[77] In terms of micronutrients, scup is particularly rich in essential vitamins and minerals vital for metabolic and immune function. It offers 47.7 micrograms of selenium (87% of the daily value), 2.07 micrograms of vitamin B12 (86% of the daily value), and 298 milligrams of phosphorus (24% of the daily value) per 100 grams cooked. Additionally, it provides 0.614 grams of omega-3 fatty acids per 100 grams, including eicosapentaenoic acid (EPA) at 174 milligrams and docosahexaenoic acid (DHA) at 349 milligrams, which are long-chain polyunsaturated fats concentrated during cooking.[77] The omega-3 fatty acids in scup contribute to cardiovascular health by reducing inflammation and supporting healthy blood vessel function, as established in dietary guidelines from health authorities.[78] With low mercury levels below 0.1 parts per million—placing it among the safest seafood choices for regular consumption—scup serves as a sustainable, low-fat alternative to red meat, delivering comparable protein with fewer saturated fats and added marine-derived nutrients.[79][80] Nutritionally, scup aligns closely with other lean white fish like cod, which provides about 105 calories, 23 grams of protein, and 0.9 grams of fat per 100 grams cooked, but scup stands out with higher selenium content (47.7 micrograms versus 38 micrograms in cod).[81] Compared to flounder, which offers around 86 calories and 15 grams of protein per 100 grams cooked with only 33 micrograms of selenium, scup provides a more concentrated source of this antioxidant mineral essential for thyroid function and protection against oxidative stress.[82]| Nutrient (per 100g cooked, dry heat) | Amount | % Daily Value* |
|---|---|---|
| Calories | 123 kcal | - |
| Protein | 23.7 g | 47% |
| Total Fat | 2.47 g | 3% |
| Saturated Fat | 0.57 g | 3% |
| Carbohydrates | 0 g | 0% |
| Omega-3 Fatty Acids (total) | 0.614 g | - |
| Selenium | 47.7 µg | 87% |
| Vitamin B12 | 2.07 µg | 86% |
| Phosphorus | 298 mg | 24% |