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Labrisomus nuchipinnis, commonly known as Maria-farinha or Hairy Blenny, is a small, benthic marine fish belonging to the family Labrisomidae. It is characterized by its cryptic coloration, often mottled with shades of brown, green, and grey, allowing it to blend seamlessly with its rocky and algal habitats. This species exhibits sexual dimorphism, with males typically displaying more vibrant coloration and elongated dorsal fin rays during breeding season. They are territorial and often found perched on rocks or within crevices, ambushing small invertebrates.
Características físicas
- Formato do corpo
- elongated
- Coloração
- Highly variable and cryptic, ranging from mottled browns, greens, greys, and reds, often with irregular blotches and bars that mimic their surroundings. Males may exhibit brighter colors, especially during courtship, including reddish or yellowish hues on fins and body.
- Tipo de escama
- ctenoid
- Posição da boca
- terminal
- Características distintivas
- Fleshy cirri (small, branched appendages) on the nape (nuchal cirri) and above the eyes (supraorbital cirri)., Elongated body with a relatively large head and prominent eyes., Large, protractile mouth with small, conical teeth., Sexual dimorphism: males often have longer dorsal fin spines and more pronounced coloration.
- Nadadeira dorsal
- Long, continuous dorsal fin with 19-21 spines and 10-12 soft rays. The anterior spines are typically longer in males.
- Nadadeira caudal
- Rounded caudal fin.
- Nadadeira peitoral
- Large, fan-like pectoral fins with 13-15 rays.
- Nadadeiras características
- Pelvic fins are jugular (located anterior to the pectoral fins) with one spine and three soft rays, often appearing filamentous.
Dicas de identificação
Nuchal and Supraorbital Cirri
Look for the distinctive fleshy, often branched, cirri on the nape and above the eyes. The number and branching pattern can vary but are a key identifying feature for the genus Labrisomus.
Coloration and Pattern
Observe the highly variable, cryptic coloration. While it can be challenging due to mimicry, the mottled pattern of browns, greens, and greys, often with irregular blotches, is characteristic. Males may show brighter colors.
Body Shape and Fin Structure
Note the elongated body, large head, and the long, continuous dorsal fin with prominent spines. The jugular pelvic fins are also a good indicator.
Behavior
They are typically found perched on rocks or within crevices, often remaining motionless, relying on camouflage. Their territorial nature might be observed if approached.
Habitat
- Tipo de água
- saltwater
- Profundidade
- Typically found in shallow waters from the intertidal zone down to about 10 meters (33 feet), though occasionally deeper.
- Ambiente
- Prefers rocky shores, tide pools, coral reefs, seagrass beds, and areas with abundant algal growth, providing shelter and ambush points. They are benthic and closely associated with the substrate.
- Distribuição geográfica
- Western Atlantic Ocean, from Bermuda and Florida (USA) south through the Caribbean Sea, Gulf of Mexico, and along the coast of Central and South America to Brazil. Also found in the eastern Atlantic, including the Canary Islands and parts of West Africa.
Informações sobre aquário
- Nível de cuidado: intermediate
- Temperamento: territorial
- Alimentação: carnivore
- Tamanho mínimo do aquário: 30 gallons
- Temperatura: 22-26°C (72-79°F)
- Nível de pH: 8.1-8.4
- Dureza da água: 8-12 dKH
- Compatibilidade: Best kept singly or in a pair in a species-specific tank or with robust, non-aggressive fish that occupy different niches. Avoid housing with very small or shy fish, as they may be harassed.
- Requisitos especiais: Requires ample rockwork with crevices and caves for hiding and perching. A well-established tank with mature live rock is beneficial for natural food sources. Good water quality and stable parameters are crucial.
Informações no ambiente natural
- Estado de conservação: least concern
- Sazonalidade: Breeding activity is often observed during warmer months, but they are present year-round in their habitats.
- Preço de mercado: N/A
- Importância comercial: none
- Sabor: Not typically consumed due to small size and bony nature.
- Textura: N/A
- Valor nutricional: N/A
Fatos principais
Master of Camouflagebehavior
The Maria-farinha is an expert at blending into its surroundings, using its mottled coloration to disappear against rocks and algae, making it incredibly difficult to spot.
Territorial Guardiansbehavior
Males of Labrisomus nuchipinnis are highly territorial, especially during breeding season, aggressively defending their chosen crevices or perching spots from rivals.
Cirri for Sensory Inputinteresting
The fleshy cirri on their head are not just for show; they are believed to aid in sensory perception, helping the blenny detect prey and navigate its complex environment.
Ambush Predatorbehavior
This blenny is a classic ambush predator, patiently waiting for small crustaceans, worms, and other invertebrates to pass by before launching a swift attack.
Informações de segurança
Seguro- Nível de segurança: safe
- Venenoso: Não
- Comestibilidade: not recommended
- Observações de manuseio: Generally harmless to humans. When handling, care should be taken to avoid accidental nips, as they have small teeth. They are best observed in their natural habitat without direct contact.
Espécies similares
Spotted Blenny
Labrisomus haitiensis
L. haitiensis typically has more distinct dark spots on its body and often lacks the prominent nuchal cirri of L. nuchipinnis, or they are less branched. Its geographic range is more restricted to the Caribbean.
Longfin Blenny
Malacoctenus triangulatus
While also a blenny with cirri, Malacoctenus species generally have a more slender body and different fin ray counts. M. triangulatus specifically has a distinctive triangular blotch pattern on its sides and typically fewer dorsal fin spines (17-19) compared to L. nuchipinnis.
Roughhead Blenny
Acanthemblemaria aspera
Roughhead Blennies are tube blennies, living in abandoned worm tubes or holes. They have a more robust head with numerous spines and cirri, and a much shorter, more compressed body than Labrisomus nuchipinnis. Their lifestyle and morphology are quite distinct.
Classificação científica
- Reino
- Animalia
- Filo
- Chordata
- Classe
- Actinopterygii
- Ordem
- Blenniiformes
- Família
- Labrisomidae
- Gênero
- Labrisomus
- Espécie
- nuchipinnis
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