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Otvori aplikacijuOpis
Atherina boyeri, commonly known as Girica or Boyer's Sand Smelt, is a small, schooling fish belonging to the family Atherinidae. It is characterized by its slender, elongated body and a prominent silvery lateral stripe. This species is highly adaptable, thriving in a variety of aquatic environments, from marine coastal waters to brackish lagoons and even freshwater systems. It plays a significant ecological role as a forage fish for larger predators and is also of commercial importance in some regions.
Fizičke karakteristike
- Oblik tijela
- elongated
- Obojenost
- Dorsal side greenish-grey to brownish, flanks silvery with a distinct, broad silvery lateral stripe extending from the pectoral fin to the caudal fin base. Ventral side whitish. Fins are generally translucent.
- Vrsta ljusaka
- cycloid
- Položaj usta
- superior
- Posebna obilježja
- Slender, elongated body, Large eyes, Small, upturned mouth, Two widely separated dorsal fins, Prominent silvery lateral stripe
- Leđna peraja
- Two dorsal fins; the first is short with 6-9 flexible spines, the second is longer with 1 spine and 8-16 soft rays. Widely separated.
- Repna peraja
- Forked caudal fin.
- Prsna peraja
- Relatively short, positioned high on the body.
- Posebne peraje
- Pelvic fins are abdominal, located behind the pectoral fins.
Savjeti za identifikaciju
Body Shape and Size
Look for a slender, elongated body, typically reaching 8-15 cm in length, though some individuals can grow up to 20 cm.
Silvery Stripe
The most distinctive feature is the broad, iridescent silvery stripe running along the flanks, which is very prominent.
Dorsal Fins
Note the two distinctly separated dorsal fins. The first is spiny and much shorter than the second, which has soft rays.
Mouth
The mouth is small and upturned, indicating its feeding habit on surface or mid-water prey.
Stanište
- Vrsta vode
- brackish
- Dubina
- Typically found in shallow waters, from the surface down to about 20 meters, occasionally deeper.
- Okoliš
- Coastal marine waters, estuaries, lagoons, brackish lakes, and even freshwater rivers and lakes. Prefers sandy or muddy bottoms, often near seagrass beds or rocky areas. Forms large schools.
- Geografski raspon
- Widespread in the Mediterranean Sea, Black Sea, and adjacent Atlantic coasts from Portugal to Mauritania. Also found in the Suez Canal and Red Sea via migration.
Informacije o akvariju
- Razina njege: intermediate
- Temperament: peaceful
- Prehrana: carnivore
- Minimalna veličina akvarija: 200 liters
- Temperatura: 10-25°C
- pH razina: 7.0-8.5
- Tvrdoća: 10-30 dGH
- Kompatibilnost: Best kept in a species-specific tank or with other peaceful, similarly sized brackish or marine fish. Avoid aggressive or very large tank mates.
- Posebni zahtjevi: Requires a well-filtered tank with good water circulation. A schooling species, so a group of at least 6-10 individuals is recommended. Can be sensitive to sudden changes in water parameters. A varied diet of small live or frozen foods is essential.
Informacije iz divljine
- Status zaštite: least concern
- Sezonalnost: Spawns primarily from spring to late summer, with peak activity often in May-July. Abundance can vary seasonally in coastal areas.
- Tržišna cijena: Varies regionally, generally low to moderate.
- Komercijalna važnost: medium
- Okus: Mild, delicate, slightly sweet.
- Tekstura: Soft, flaky.
- Načini pripreme: Fried, Grilled, Marinated, Baked
- Hranjiva vrijednost: Good source of protein and omega-3 fatty acids.
Ključne činjenice
Euryhaline Adaptabilitybehavior
Atherina boyeri is remarkably euryhaline, meaning it can tolerate a wide range of salinities, from full marine to freshwater, which allows it to colonize diverse habitats.
Schooling Behaviorbehavior
This species forms large, dense schools, especially in shallow coastal waters, as a defense mechanism against predators and for more efficient foraging.
Forage Fishinteresting
Girica serves as a crucial forage fish, forming a significant part of the diet for many larger predatory fish and seabirds in its ecosystem.
Rapid Life Cyclebehavior
Atherina boyeri has a relatively short lifespan, typically 1-3 years, and reaches sexual maturity quickly, contributing to its resilience and rapid population turnover.
Dietary Flexibilitybehavior
Its diet primarily consists of zooplankton, small crustaceans, and insect larvae, demonstrating its opportunistic feeding habits.
Sigurnosne informacije
Sigurno- Razina sigurnosti: safe
- Otrovno: Ne
- Jestivost: edible
- Napomene o rukovanju: No specific handling precautions are required. They are small, non-venomous fish. Handle gently if caught for release or transfer.
Slične vrste
Common Smelt
Osmerus eperlanus
Common Smelt has an adipose fin (a small fleshy fin between the dorsal and caudal fins) which Atherina boyeri lacks. Also, Osmerus eperlanus typically has a more pointed snout and a stronger cucumber-like smell.
Big-scale Sand Smelt
Atherina hepsetus
Atherina hepsetus generally has larger scales (fewer scales along the lateral line, typically 55-65 vs. 60-70 for A. boyeri) and a slightly more elongated snout. The silvery stripe in A. hepsetus is often narrower and less distinct anteriorly.
Small-scale Sand Smelt
Atherina presbyter
Atherina presbyter typically has smaller scales (more scales along the lateral line, usually 70-85) and a more northern Atlantic distribution. Its body is often more robust than A. boyeri.
Znanstvena klasifikacija
- Carstvo
- Animalia
- Koljeno
- Chordata
- Razred
- Actinopterygii
- Red
- Atheriniformes
- Porodica
- Atherinidae
- Rod
- Atherina
- Vrsta
- Atherina boyeri
Istraži Girica
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