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The European Sea Bass fish, Branzino fish identification, its habitats, characteristics, Fishing
methods
The European seabass is a member of the Moronidae family. The name Dicentrarchus derives from the presence
of two dorsal fins. It has silver sides and a white belly. They are one of the most prized of all
Mediterranean fish and have always been expensive. This handsome and voracious fish is indeed very good
eating. They are available year-round from aquafarms and are best in spring and early summer, before they
spawn.
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The European seabass, Dicentrarchus labrax, also known as Sea Dace, Morone labrax, is a primarily
ocean-going fish that sometimes enters brackish and fresh water. Highly regarded as a food fish, it
is often marketed as Branzino, Mediterranean seabass, Bronzini or Branzini, name came from Northern
Italy; in other parts of the country it is called Spigola or Ragno). In Spain, where, due to its
popularity, it is farmed, it is called Lubina or R�balo.They range in Eastern Atlantic: Norway,
Great Britain, and Iceland to Morocco, the Canary Islands and Senegal. They are found in the sea,
saltwater lakes, estuaries, lagoons, coastal waters and the lower reaches of rivers in and around
Europe including the Mediterranean Sea and the Black Sea.
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Description
European sea bass have elongate body and opercle with 2 flat spines; preopercle with large,
forward-directed spines on its lower margin. Posterior edge of opercle finely serrated, lower edge with
strong forward- directed denticles. Mouth is terminal, moderately protractile. Vomerine teeth are only
anteriorly, in a crescentic band, without a backward extension on midline of roof of mouth. Head is with
cycloid scales above. They typically weigh 1 1/2 to 3 pounds and have a silvery skin much like striped
bass without the stripes. They have firm, white, mild-flavored flesh without small bones and hold their
shape well.
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Two separate dorsal fins.
The first dorsal fin has 8 to 10 spines.
The 2nd dorsal fin has 1 spine and 12 or 13 soft rays.
Anal fin has 3 spines and 10 to 12 soft rays.
Caudal fin moderately forked.
Opercle has 2 flat spines.
Lateral line complete with 62 to 74 (usually 70) small scales, but not extending onto caudal
fin.
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Color silvery grey to bluish on the back, silvery on the sides, belly is white, sometimes
tinged with yellow. Young with some dark spots on upper part of body but adults never spotted. A diffuse
spot is on the edge of opercle.
Young fish maintain some dark spots on upper part of body, black spots on the back and
sides, a feature that can create confusion with spotted bass. This fish's operculum is serrated and
spined. It can grow to a total length of over 1 m (3.3 ft) and 15 kg of weight.
Habitats
The European sea bass are able to frequent coastal inshore waters, and occur in estuaries and
brackishwater lagoons. Sometimes they venture upstream into freshwater. They are eurythermic (5-28 �C) and
euryhaline (3% to full strength sea water). Adults manifest demersal behavior; inhabit coastal waters down
to about 100m depth but more common in shallow waters.
They are found in the littoral zone on various kinds of bottoms on estuaries, lagoons and
occasionally rivers. They enter coastal waters and river mouths in summer, but migrate offshore in colder
weather and occur in deep water during winter in the northern range. Being not particularly sensitive to
low temperature some fish may over-winter in coastal lagoons instead of returning to the open sea. Young
fish form school, but adults appear to be less gregarious.
Sea bass are predators, mostly a night hunters and their feeding range includes small fish,
prawns, crabs and cuttlefish. Feed chiefly on shrimps and mollusks, polychaetes, cephalopods and
crustaceans. Juveniles feed on invertebrates, taking increasingly more fish with age.
Spawning
The European sea bass spawn in batches. Spawning takes place in the spring near the British Isles, and
earlier in its southern range. There is only one spawning season per year, which takes place in winter,
from December to March in the Mediterranean populations, and up to June in Atlantic populations. Sea bass
spawn small (1.02-1.39 mm) pelagic eggs in water with salinities lower than 35%, near to river mouths and
estuaries or in littoral areas where the salinity is high (>=30%). The females are mature at age 5 to 8
years, whereas for males this range is lowered to 2-4 years. The spawning males are usually 2 times more
than spawning females. Juveniles reach 400-450 g in 18-24 months.
Fishing
The fish has come under increasing pressure from commercial fishing and has recently become the focus in
the United Kingdom of a conservation effort by recreational anglers. In Italy European sea bass or
Branzino is the subject of intensive breeding in salt waters.
Small commercial fisheries exist in the Mediterranean. The gear used to catch these bass
includes beach and purse seines, trawl nets, trammel nets, longlines and rod and line.
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