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Chelon ramada, commonly known as the thinlip mullet or Tainha-olhalvo, is a species of ray-finned fish in the family Mugilidae. It is characterized by its slender body, relatively small mouth with thin lips, and the absence of an adipose eyelid, which distinguishes it from many other mullet species. This species is euryhaline, inhabiting coastal marine waters, estuaries, and even freshwater environments, demonstrating a high degree of adaptability to varying salinities. It is an important component of coastal ecosystems and is targeted by both commercial and recreational fisheries in parts of its range.
Características físicas
- Formato do corpo
- torpedo
- Coloração
- Dorsal side is typically dark grey to greenish-brown, fading to silvery-white on the flanks and belly. Fins are generally dusky. No distinct dark spots or stripes on the body.
- Tipo de escama
- ctenoid
- Posição da boca
- terminal
- Características distintivas
- Slender, elongated body, Small, terminal mouth with thin lips, Absence of an adipose eyelid (a key distinguishing feature from many other mullets), Pectoral fin usually reaches to or just beyond the origin of the first dorsal fin, No dark spot at the base of the pectoral fin
- Nadadeira dorsal
- Two separate dorsal fins. The first dorsal fin has 4 strong spines. The second dorsal fin has 1 spine and 8-9 soft rays.
- Nadadeira caudal
- Moderately forked caudal fin.
- Nadadeira peitoral
- Pectoral fins are relatively long, typically reaching to or slightly past the origin of the first dorsal fin.
- Nadadeiras características
- Pelvic fins are abdominal, located below the pectoral fins.
Dicas de identificação
Adipose Eyelid
The most reliable distinguishing feature: Chelon ramada lacks an adipose eyelid, which is present and often well-developed in many other mullet species (e.g., Mugil cephalus, Liza aurata).
Mouth and Lips
Possesses a small, terminal mouth with noticeably thin lips. Other mullets may have thicker or more prominent lips.
Pectoral Fin Length
The pectoral fin is relatively long, usually reaching to or slightly beyond the origin of the first dorsal fin. This can be a useful, though not always definitive, characteristic.
Body Shape
Generally more slender and elongated than some other mullet species.
Coloration
Absence of distinct dark spots or stripes on the body, which can be present in other mullets (e.g., golden spots in Liza aurata).
Habitat
- Tipo de água
- brackish
- Profundidade
- Typically found in shallow coastal waters, estuaries, lagoons, and lower reaches of rivers, from surface to about 30 meters.
- Ambiente
- Euryhaline and diadromous (anadromous or catadromous, depending on population). Prefers sandy or muddy bottoms, often associated with seagrass beds or detritus-rich areas. Tolerant of a wide range of salinities and temperatures.
- Distribuição geográfica
- Eastern Atlantic Ocean, from the British Isles south to Mauritania, including the Mediterranean Sea and the Black Sea. Also found in the Canary Islands and Madeira. Occasionally reported from the Red Sea via the Suez Canal (Lessepsian migration).
Informações sobre aquário
- Nível de cuidado: intermediate
- Temperamento: peaceful
- Alimentação: omnivore
- Tamanho mínimo do aquário: 500 gallons (for adults)
- Temperatura: 10-24°C (50-75°F)
- Nível de pH: 7.0-8.5
- Dureza da água: 10-25 dGH
- Compatibilidade: Generally compatible with other peaceful, similarly sized euryhaline or marine species. Avoid aggressive tank mates.
- Requisitos especiais: Requires a large tank with ample swimming space and good filtration. Adaptable to various salinities, but changes should be gradual. A sandy or silty substrate is beneficial for their natural foraging behavior. Can be kept in brackish or marine setups.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Spawning typically occurs in autumn and winter in marine waters. Migratory patterns can influence local availability.
- Preço de mercado: Varies by region and season, generally moderate.
- Importância comercial: medium
- Sabor: Mild, slightly earthy
- Textura: Firm, flaky
- Métodos de preparo: Baked, Grilled, Fried, Smoked
- Valor nutricional: Good source of protein and omega-3 fatty acids.
Fatos principais
Euryhaline Adaptabilitybehavior
Chelon ramada is highly euryhaline, meaning it can tolerate a wide range of salinities, from full marine conditions to freshwater, making it a common inhabitant of estuaries and river mouths.
Dietary Generalistbehavior
This mullet species is an omnivorous detritivore, feeding primarily on detritus, algae, small invertebrates, and zooplankton, playing an important role in nutrient cycling in its habitats.
Absence of Adipose Eyelidinteresting
A key morphological feature distinguishing Chelon ramada from many other mullet species is the complete absence of an adipose eyelid, which is a fatty membrane covering part of the eye in other mullets.
Taxonomic Reclassificationevolution
Historically, this species was often classified under the genus Liza (as Liza ramada) or Mugil (as Mugil ramada). Recent molecular phylogenetic studies have supported its placement within the genus Chelon.
Migratory Spawningbehavior
Adult Chelon ramada typically migrate from brackish or freshwater environments to marine waters to spawn, usually during the autumn and winter months.
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. Not venomous or dangerous.
Espécies similares
Thicklip mullet
Chelon labrosus
Chelon labrosus has noticeably thicker lips, especially the upper lip, and often a dark spot at the base of the pectoral fin. It also typically has a more robust body.
Golden grey mullet
Liza aurata
Liza aurata possesses a distinct golden spot on each operculum (gill cover) and often golden reflections along the flanks. It also has a well-developed adipose eyelid.
Flathead grey mullet
Mugil cephalus
Mugil cephalus has a prominent adipose eyelid covering much of the eye, and typically has faint longitudinal stripes along its flanks. Its head is also broader and flatter.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Mugiliformes
- Família
- Mugilidae
- Gênero
- Chelon
- Espécie
- ramada
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