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Mugil liza, commonly known as Tainha, is a euryhaline and catadromous fish species belonging to the family Mugilidae. It is a commercially important fish in the South Atlantic, particularly along the Brazilian coast. Tainhas are known for their migratory behavior, forming large schools during reproductive seasons. They are detritivores and herbivores, playing a crucial role in coastal ecosystems by grazing on algae and organic matter.
Características físicas
- Formato do corpo
- torpedo
- Coloração
- Dorsal side is typically dark greenish-gray to bluish-gray, fading to silvery-white on the flanks and belly. Often has faint longitudinal stripes along the sides.
- Tipo de escama
- cycloid
- Posição da boca
- terminal
- Características distintivas
- Small, terminal mouth with thick lips, often with fine teeth., Adipose eyelid well-developed, covering most of the eye except for a central slit., Two widely separated dorsal fins; the first with 4 strong spines, the second with 1 spine and 8-9 soft rays., Pectoral fins are relatively short, not reaching the origin of the first dorsal fin., Large, cycloid scales covering the body and head.
- Nadadeira dorsal
- Two separate dorsal fins. First dorsal fin with IV spines. Second dorsal fin with I spine and 8-9 soft rays.
- Nadadeira caudal
- Moderately forked caudal fin.
- Nadadeira peitoral
- Short, located high on the body, with 15-17 rays.
- Nadadeiras características
- Pelvic fins are abdominal, located behind the pectoral fin base, with I spine and 5 soft rays. Anal fin with III spines and 8-9 soft rays.
Dicas de identificação
Adipose Eyelid
A prominent, fatty eyelid covering most of the eye, leaving only a central slit. This is a key characteristic of many mullet species, including Mugil liza.
Dorsal Fins
Two distinctly separate dorsal fins. The first is spiny (4 spines), and the second is soft-rayed (1 spine, 8-9 soft rays). The wide separation is important for differentiation.
Mouth
Small, terminal mouth with thick lips. The absence of prominent teeth is characteristic of its detritivorous diet.
Coloration
Darker dorsal side (greenish-gray to bluish-gray) and silvery-white belly, often with faint longitudinal stripes on the flanks.
Habitat
- Tipo de água
- brackish
- Profundidade
- Typically found in shallow coastal waters, estuaries, lagoons, and lower reaches of rivers, from surface to about 20 meters.
- Ambiente
- Coastal marine waters, estuaries, lagoons, and freshwater rivers. Prefers sandy or muddy bottoms where it can feed on detritus and algae. Highly tolerant of salinity fluctuations.
- Distribuição geográfica
- Western Atlantic Ocean, from the Caribbean Sea (Cuba, Hispaniola) south along the coast of Central and South America to Argentina. Most abundant along the Brazilian coast.
Informações sobre aquário
- Nível de cuidado: expert
- Temperamento: peaceful
- Alimentação: filter_feeder
- Tamanho mínimo do aquário: Not suitable for typical home aquariums due to size and migratory needs. Requires very large, specialized public aquarium setups.
- Temperatura: 18-28°C
- Nível de pH: 7.0-8.5
- Dureza da água: 10-25 dGH
- Compatibilidade: Generally peaceful with other large, non-aggressive euryhaline species, but best kept in species-specific large exhibits due to their schooling behavior and specific dietary needs.
- Requisitos especiais: Requires extremely large tanks with strong filtration to handle their detritivorous feeding habits. Mimicking natural migratory patterns and providing ample space for schooling is essential. Not recommended for private aquarists.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Spawning migrations typically occur during late autumn and winter (May-August in the Southern Hemisphere), leading to seasonal abundance in coastal areas.
- Preço de mercado: Varies significantly by region and season, often high during spawning migrations due to roe value.
- Importância comercial: high
- Sabor: Mild, slightly earthy, can be oily, especially during spawning season.
- Textura: Firm, flaky white flesh.
- Métodos de preparo: Grilled, Baked, Fried, Smoked, Used for roe (bottarga)
- Valor nutricional: Rich in Omega-3 fatty acids, protein, and vitamins (e.g., B12, D).
Fatos principais
Catadromous Migrationbehavior
Mugil liza is a catadromous species, meaning it lives in freshwater or brackish environments and migrates to the sea to spawn. This annual migration is a significant ecological event.
Roe Delicacyinteresting
The roe (eggs) of Mugil liza is highly prized, especially in Brazil, where it is processed into 'bottarga' or consumed fresh. This makes the fish particularly valuable during its spawning season.
Ecological Rolebehavior
As detritivores and herbivores, Tainhas play a vital role in coastal ecosystems by consuming organic detritus and algae, helping to maintain water quality and nutrient cycling.
Euryhaline Adaptabilityamazing
Mugil liza exhibits remarkable euryhalinity, capable of adapting to a wide range of salinities, from pure freshwater to hypersaline conditions, which allows it to exploit diverse habitats.
Informações de segurança
Seguro- Nível de segurança: safe
- Venenoso: Não
- Comestibilidade: edible
- Observações de manuseio: No specific handling precautions are required beyond standard fish handling practices to avoid fin pricks. They are not venomous or dangerous.
Espécies similares
Parati-olho-grande
Mugil curema
Mugil curema (White Mullet) typically has a more silvery body, less developed adipose eyelids, and often a dark spot at the base of the pectoral fin (though this can be variable). The scales of M. curema are generally larger relative to body size than M. liza.
Parati-barbudo
Mugil hospes
Mugil hospes (Hospe Mullet) is generally smaller and has a more pointed snout. Its adipose eyelid is less developed than M. liza, and it often exhibits more pronounced dark longitudinal stripes.
Parati-róseo
Mugil incilis
Mugil incilis (Fringe-lipped Mullet) has a more compressed body and a distinctive fringe of papillae on its upper lip, which is absent in M. liza. Its coloration can also be more yellowish or rosy.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Mugiliformes
- Família
- Mugilidae
- Gênero
- Mugil
- Espécie
- Mugil liza
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