nimet breadcrumb-navigoinnissa
Haemulon sciurus és una espècie de peix de la família dels hemúlids i de l'ordre dels perciformes.
Els mascles poden assolir els 46 cm de longitud total.[2]
Es troba des de Florida fins al Brasil, incloent-hi el Golf de Mèxic i el Carib.[2]
The bluestriped grunt (Haemulon sciurus), also known as the boar grunt, golden grunt, humpback grunt, redmouth grunt, or yellow grunt, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is found in the western Atlantic Ocean.
The bluestriped grunt has a deep, almond-shaped body with a moderately convex dorsal profile. Its upper jaw extends to underneath the centre of the eye. The scales above the lateral line are enlarged, whereas those underneath it are arranged in a diagonal pattern.[3] It has a continuous dorsal fin with a small to medium-sized notch in its centre.[4] The dorsal fin contains 12 spines and 16-17 soft rays, while the anal fin contains 3 spines and 9 soft rays.[2] The overall colour of this species’ head and body is yellow broken by thin, longitudinal blue stripes. Also, a distinctively arched stripe occurs below each eye. The spiny part of the dorsal fin is yellow, the soft-rayed part of the dorsal fin and the caudal fin are dark, the anal fin is sooty yellow, and the pelvic and pectoral fins are whitish. The inside of the mouth is a vivid red. The small juveniles, below lengths of 22 mm (0.87 in) have obvious melanophores on their caudal peduncles, and as the fish grows, these grow, too, forming a dark stripe starting just behind the eye and running to the caudal peduncle. Once a length of 50 mm (2.0 in) is attained, the fish changes to the adult colouration.[3] This species attains a maximum total length of 46 cm (18 in), although 25 cm (9.8 in) is more typical.[2]
The bluestriped grunt is found in the western Atlantic Ocean, from South Carolina and Bermuda south along the coast of the United States to the Bahamas. They extend into the Gulf of Mexico from the Florida Keys north as far as Cedar Key and from Tuxpan in Mexico along the northern coasts of the Yucatan Peninsula to northwestern Cuba, and in all of the Caribbean Sea.[1]
The bluestriped grunt is found in shallow water, at depths between 1 and 40 m (3 ft 3 in and 131 ft 3 in).[1] It is common in mangroves, reefs, and beds of sea grass. The adults aggregate in small schools over coral and rocky beds, especially in the vicinity of drop-offs. The juveniles are very common among beds of turtle grass (Thalassia testudinum) in shallow waters. They forage in sea-grass beds and mangroves searching for smaller fishes, crustaceans, and bivalves.[3] Foraging occurs at night; they rest in the day in rocky areas.[1] The spawning behaviour of the bluestriped grunt is little known, but is known to take place from January to April in the Caribbean Sea. The larvae settle into sea-grass beds at lengths that range from 9 to 17 mm (0.35 to 0.67 in) as they grow into juveniles. These fish often display open-mouthed, head-on pushing each other backwards, and they also produce a grunting noise using pharyngeal teeth. They are preyed on by larger fish such as sharks and groupers, and among their known parasites is the monogenean, Encotyllabe spari.[3]
The bluestriped grunt was first formally described in 1803 as Sparus sciurus by English zoologist George Shaw (1751-1813), with the type locality given as the Antilles.[5] The specific name sciurus means "squirrel", squirrelfish being one of the vernacular names of this species at the time, presumably because of its production of grunts.[6]
The bluestriped grunt is caught using hook and line, traps, and seines. The catch is not recorded separately for this species. The flesh is normally sold fresh.[7] It is rare in the aquarium trade but is more common in public aquarium displays due to its size.[8]
The bluestriped grunt (Haemulon sciurus), also known as the boar grunt, golden grunt, humpback grunt, redmouth grunt, or yellow grunt, is a species of marine ray-finned fish, a grunt belonging to the family Haemulidae. It is found in the western Atlantic Ocean.
Haemulon sciurus es una especie de peces de la familia Haemulidae en el orden de los Perciformes.
• Los machos pueden llegar alcanzar los 46 cm de longitud total.[1]
Se encuentra desde Florida hasta Brasil, incluyendo el Golfo de México y el Mar Caribe.
Haemulon sciurus es una especie de peces de la familia Haemulidae en el orden de los Perciformes.
Haemulon sciurus Haemulon generoko animalia da. Arrainen barruko Haemulidae familian sailkatzen da.
Haemulon sciurus Haemulon generoko animalia da. Arrainen barruko Haemulidae familian sailkatzen da.
Haemulon sciurus
La gorette bleue (Haemulon sciurus) est une espèce de poissons de la famille des Haemulidae que l'on rencontre fréquemment dans les Caraïbes, la Floride et les Bahamas, et plus rarement en Caroline du Sud, aux Bermudes et dans le Golfe du Mexique. Elle a des rayures bleues sur fond jaune or, la queue et une partie souple de la dorsale noires avec les bords clairs et les autres nageoires jaunes. Ces poissons se rassemblent en bancs de taille plus ou moins importante au-dessus du récif, entre 3,5 et 12 mètres de profondeur[1].
Haemulon sciurus
La gorette bleue (Haemulon sciurus) est une espèce de poissons de la famille des Haemulidae que l'on rencontre fréquemment dans les Caraïbes, la Floride et les Bahamas, et plus rarement en Caroline du Sud, aux Bermudes et dans le Golfe du Mexique. Elle a des rayures bleues sur fond jaune or, la queue et une partie souple de la dorsale noires avec les bords clairs et les autres nageoires jaunes. Ces poissons se rassemblent en bancs de taille plus ou moins importante au-dessus du récif, entre 3,5 et 12 mètres de profondeur.
Haemulon sciurus (Shaw, 1803) è un pesce osseo marino appartenente alla famiglia Haemulidae[2].
Si tratta di una specie endemica dell'oceano Atlantico occidentale tropicale e subtropicale dalla Carolina del Sud (raro a nord della Florida) a tutto il mar dei Caraibi e il golfo del Messico centromeridionale fino alle Bermuda e le Bahamas. Le segnalazioni dal Brasile sono frutto di errori di determinazione[1][3][4].
Frequenta soprattutto fondi duri sia corallini che rocciosi, più raramente anche in ambienti di mangrovie e in zone ricche di vegetazione marina (verso le quali effettua migrazioni notturne). I giovanili sono comuni in acque basse, soprattutto in praterie di Thalassia[1][3][4].
La distribuzione batimetrica va da 0 a 30 metri di profondità, di solito non oltre i 20 metri[3].
Ha corpo abbastanza alto con bocca relativamente grande rispetto agli altri Haemulon, terminale su un muso prominente. La livrea ha fondo giallo vivo su tutto il corpo e la testa con numerose striature blu longitudinali piuttosto sottili. La striscia che passa sotto l'occhio ha una caratteristica incurvatura verso l'occhio. La parte posteriore a raggi molli della pinna dorsale e la pinna caudale sono scure o nerastre, le altre pinne compresa la porzine anteriore della dorsale sono gialle; la pinna anale generalmente più scura[3][4].
La taglia massima conosciuta è di 46 cm, la taglia media di 25 cm. Il peso massimo noto è di 750 grammi[3].
La longevità massima nota è di 14 anni[3].
Forma banchi di piccole dimensioni. Si tratta di un animale timido, difficile da avvicinare[4].
H. sciurus si nutre prevalentemente di invertebrati bentonici come echinodermi, tra cui il riccio di mare Diadema antillarum, molluschi sia bivalvi che gasteropodi (tra i quali Strombus gigas) e crostacei[5].
Sembra che gli adulti formino aggregazioni riproduttive almeno in alcune aree[1].
Non è oggetto di pesca specifica e non ha un grande valore di mercato anche se viene catturato come bycatch con un gran numero di tecniche di pesca[1]. Talvolta è ciguatossico[3].
È una specie abbondante dappertutto, soggetta a uno sforzo di pesca non importante. Si ritiene che non sia soggetta a minacce se non a una localizzatissima sovrapesca in alcune aree, che comunque non sembrano impattare seriamente le popolazioni coinvolte. Per questi motivi la lista rossa IUCN classifica questa specie come "a rischio minimo"[1].
Haemulon sciurus (Shaw, 1803) è un pesce osseo marino appartenente alla famiglia Haemulidae.
Het neertje (Haemulon sciurus) is een straalvinnige vis uit de familie van Haemulidae, orde baarsachtigen (Perciformes), die voorkomt in het westen van de centrale Atlantische Oceaan.
De vis is geelachtig met vele horizontale blauwe strepen. Staart en de achterste helft van de rugvin zijn zwartgekleurd. Het neertje kan maximaal 46 centimeter lang en 750 gram zwaar worden. De vis heeft één rugvin. Er zijn 12 stekels en 16 tot 17 vinstralen in de rugvin en 3 stekels en 9 vinstralen in de aarsvin.
Het neertje is een zoutwatervis die voorkomt in tropische kustwateren en koraalriffen op een diepte van maximaal 30 meter. De soort vormt grote scholen boven rotsige en zanderige bodems in kustgebieden.
Het dieet van de vis bestaat hoofdzakelijk uit macrofauna en vis.
Het neertje is voor de visserij van beperkt commercieel belang. De soort kan worden bezichtigd in sommige openbare aquaria. Voor de mens is het neertje potentieel gevaarlijk, omdat er meldingen van ciguatera-vergiftiging zijn geweest.
De soort staat niet op de Rode Lijst van de IUCN.
Het neertje (Haemulon sciurus) is een straalvinnige vis uit de familie van Haemulidae, orde baarsachtigen (Perciformes), die voorkomt in het westen van de centrale Atlantische Oceaan.
Systematyka Domena eukarionty Królestwo zwierzęta Typ strunowce Podtyp kręgowce Gromada promieniopłetwe Rząd okoniokształtne Podrząd okoniowce Rodzina luszczowate Rodzaj Haemulon Gatunek hemulon smużkowy Hemulon smużkowy (Haemulon sciurus) - gatunek ryby promieniopłetwej z rodziny luszczowatych, żyjącej w tropikalnych wodach zachodniego Atlantyku na głębokości do 30 m. Długość ciała dochodzi do 46 cm, ryba żyje w małych grupach. Podstawę pożywienia stanowią skorupiaki, małże, niekiedy inne, mniejsze ryby.
Hemulon smużkowy (Haemulon sciurus) - gatunek ryby promieniopłetwej z rodziny luszczowatych, żyjącej w tropikalnych wodach zachodniego Atlantyku na głębokości do 30 m. Długość ciała dochodzi do 46 cm, ryba żyje w małych grupach. Podstawę pożywienia stanowią skorupiaki, małże, niekiedy inne, mniejsze ryby.
_(35881434343).jpg)
