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Eupercaria/misc (Various families in series Eupercaria) >
Moronidae (Temperate basses)
Etymology: saxatilis: saxatilis --- living among rocks (Ref. 1998).
More on author: Walbaum.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser; süßwasser; brackwasser demersal; anadrom (Ref. 138280); tiefenbereich 30 - ? m (Ref. 2850). Temperate; 8°C - 25°C (Ref. 47172); 49°N - 27°N, 94°W - 59°W (Ref. 86798)
Western Atlantic: St. Lawrence River in Quebec, Canada to Lake Pontchartrain in Louisiana; south in Florida, USA to St. Johns and Suwannee river drainages.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 200 cm TL Männchen/unbestimmt; (Ref. 86798); common length : 120 cm TL Männchen/unbestimmt; (Ref. 9988); max. veröff. Gewicht: 57.0 kg (Ref. 2850); max. veröff. Alter: 30 Jahre (Ref. 1468)
Rückenflossenstacheln (insgesamt) : 9 - 11; Rückenflossenweichstrahlen (insgesamt) : 10 - 13; Afterflossenstacheln: 3; Afterflossenweichstrahlen: 7 - 13.
Body shape (shape guide): fusiform / normal.
Adults inhabit coastal waters and are commonly found in bays but may enter rivers in the spring to spawn (Ref. 2850). Some populations are landlocked (Ref. 7251). Voracious and opportunistic feeder (Ref. 5951). Larvae feed on zooplankton; juveniles take in small shrimps and other crustaceans, annelid worms, and insects (Ref. 1998, 10294); adults feed on a wide variety of fishes (alewives, herring, smelt, eels, flounders, mummichogs, rock gunnels, sand lance, silver hake and silversides (Ref. 5951)) and invertebrates (squid, crabs, sea worms and amphipods (Ref. 5951)), mainly crustaceans (Ref. 1998). Feeding ceases shortly before spawning (Ref. 1998). Utilized fresh and eaten broiled and baked (Ref. 9988).
Move into fresh or brackish water to spawn (Ref. 39467). Females spawn more than once in a season, but they don't necessarily spawn every year (Ref. 1998).
Heemstra, P.C., 1995. Moronidae. Lubinas. p. 1289-1292. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9320)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: weniger kommerziell; Aquakultur: kommerziell; Sportfisch: ja
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Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5781 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00933 (0.00743 - 0.01172), b=3.05 (2.98 - 3.12), in cm total length, based on LWR estimates for this species (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
4.7 ±0.2 se; based on diet studies. |
Widerstandsfähigkeit (Ref. 120179) |
niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (K=0.12; tm=5-7; tmax=30; Fec=14,000). |
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Rate of population increase |
Prior r = 0.31, 95% CL = 0.20 - 0.46, Based on 2 full stock assessments. |
Anfälligkeit der Fischerei (Ref. 59153) |
High vulnerability (61 of 100). 🛈 |
Klimaanfälligkeit (Ref. 125649) |
High vulnerability (61 of 100). 🛈 |
Preiskategorie (Ref. 80766) |
Medium.
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Nährstoffe (Ref. 124155) |
Calcium = 14.4 [7.1, 30.8] mg/100g; Iron = 0.291 [0.146, 0.542] mg/100g; Protein = 19.4 [18.5, 20.4] %; Omega3 = 0.583 [0.331, 1.065] g/100g; Selenium = 16.5 [7.6, 34.2] μg/100g; VitaminA = 8.61 [2.38, 30.88] μg/100g; Zinc = 0.307 [0.217, 0.451] mg/100g (wet weight); based on nutrient studies. |