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Bolinopsis infundibulum (O. F. Müller 1776)

Biology ( anglais )

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A common upper water colum lobed ctenophore of the Arctic and its marginal seas
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Arctic Ocean Diversity
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Russ Hopcroft

Habitat ( anglais )

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Panarctic, mostly in surface waters but down to 500 m
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Arctic Ocean Diversity
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Russ Hopcroft

Comprehensive Description ( anglais )

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Pair of pronounced pad-shapped lobes surround mouth; Transparrent, often with a dark patch on near the end of each lobe; May have pronounced peak at the top of the animal; Animal disintegrates in preservative
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Arctic Ocean Diversity
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Russ Hopcroft

Trophic Strategy ( anglais )

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Eats copepods and small crustaceans trapped inside lobes
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Arctic Ocean Diversity
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Russ Hopcroft

Life Cycle ( anglais )

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Eggs are scattered into the water; Juveniles hatch as a spherial body form with a pair of feeding tentcales; Lobes develop after an increase in size and tentacles are lost; Generation times are unknown, probably 1 year
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Arctic Ocean Diversity
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Russ Hopcroft

Distribution ( anglais )

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Cold water species. Found in the Barents Sea, White Sea, Bering Sea, Chukchi Sea, East-Siberian Sea.

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Ershova, Elizaveta
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Morphology ( anglais )

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Characterized by the presence of 2 large oral lobes. 4 rows of combs reach the end of the body; the other 4 are half as long. Tentacles are weakly developed, tentacle pouches are absent. Very transparent body. Does not tolerate handling or fixation; immediately falls apart into shapeless pieces.

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Size ( anglais )

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Height up to 110-150 mm.

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Habitat ( anglais )

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Depth Range: Surface to 1000 m
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droit d’auteur
Rosario Beach Marine Laboratory

Comprehensive Description ( anglais )

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Like all ctenophores, this species swims by means of 8 ciliated rows which meet at the aboral side and run down the sides of the body. This ctenophore is a lobate ctenophore, meaning that it has two large lobes at its oral end. It has small tentacles of 2 different kinds near the mouth, between the lobes. One type of tentacle is branched and arises from sheaths near the mouth. The other type is small but abundant, in tracts leading to the mouth. The body surface of this species is smooth and colorless except for rows of dark spots which continue along the body in the same line as the ctene rows. The ctene rows are not all the same length, and run only 1/2 to 2/3 the length of the body. In large individuals these spots may be coalesced into lines. Length to 15 cm, usually smaller.
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Rosario Beach Marine Laboratory

Distribution ( anglais )

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Geographical Range: Atlantic temperate to arctic, Pacific southern CA to Arctic, Arctic oceans. This is the most common lobate ctenophore along our Pacific coast.
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Rosario Beach Marine Laboratory

Habitat ( anglais )

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Pelagic
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Rosario Beach Marine Laboratory

Comprehensive Description ( anglais )

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Biology/Natural History: This species mostly cruises vertically, upward or downward. One of the individuals we captured had recently swallowed a copepod. May be eaten by Beroe ctenophores. This ctenophoe is luminescent.
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Look Alikes ( anglais )

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How to Distinguish from Similar Species: This is one of the few lobate ctenophores in our waters. Several similar species are highly flattened, but this species is not flattened. Others may be able to clap their lobes together in a "frog kick" for escape swimming, but this species cannot.
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Rosario Beach Marine Laboratory

Bolinopsis infundibulum ( azéri )

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Bolinopsis infundibulum (lat. Bolinopsis infundibulum) - bolinopsis cinsinə aid heyvan növü.

İstinadlar

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Bolinopsis infundibulum: Brief Summary ( azéri )

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Bolinopsis infundibulum (lat. Bolinopsis infundibulum) - bolinopsis cinsinə aid heyvan növü.

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Bolinopsis infundibulum ( anglais )

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Bolinopsis infundibulum, commonly known as the common northern comb jelly, is a species of comb jelly in the family Bolinopsidae. It is found in the northern Atlantic Ocean and was first described by the Danish naturalist Otto Friedrich Müller in 1776.

Description

Bolinopsis infundibulum is an oblong comb jelly growing to a maximum length of about 15 cm (6 in). The thin gelatinous body wall is transparent, or occasionally milky white. There are two short tentacles with fringed edges. The mouth is at one end of the body and has two large lobes beside it, used to funnel food towards it. Between the lobes are four auricles, gelatinous projections fringed with cilia, that produce feeding currents that help draw in the microscopic prey. The mouth is surrounded by a ring of tentilla (little tentacles).[2] The other end of the body is bluntly pointed. Locomotion is provided by the four long longitudinal rows and four short rows of cilia. These cilia are arranged on transverse plates and beat in synchrony, giving the animal its iridescent appearance. The plates to which the cilia are attached are bioluminescent.[3]

Distribution

Bolinopsis infundibulum occurs in the northern Atlantic, its range extending from the Arctic to the Mediterranean Sea in the east and the Gulf of Maine in the west. It also occurs in the Pacific Northwest from the Bering Sea to California. It is found to a depth of about 1,000 m (3,281 ft), with the largest individuals found at greater depths.[1][4]

Ecology

Bolinopsis infundibulum is a predator and sometimes occurs in swarms.[1] The food is drawn towards the mouth by the feeding current created by movement of cilia. Weakly swimming prey such as fish eggs and fry, copepod larvae, gastropod veligers, rotifers and other tiny zooplankton are then trapped by the tentilla and ingested.[2]

Bolinopsis infundibulum is an important part of the food chain, occurring in large numbers off the coast of Norway from April to August, and in Scotland from April to June. As many as 250 individuals per square metre have been recorded in mid-May, followed by a rapid decline. This sudden population collapse is believed to be caused by predation by another species of comb jelly, Beroe cucumis.[5] Larger individuals of B. infundibulum have been reported from deeper waters, preying on copepods, later in the year.[5]

References

  1. ^ a b c d Mills, Claudia (2014). "Bolinopsis infundibulum (O.F. Müller, 1776)". WoRMS. World Register of Marine Species. Retrieved 2015-03-15.
  2. ^ a b Ruppert, Edward E.; Fox, Richard, S.; Barnes, Robert D. (2004). Invertebrate Zoology, 7th edition. Cengage Learning. pp. 191–192. ISBN 978-81-315-0104-7.
  3. ^ Barnes, Morvan (2008). "A comb jelly - Bolinopsis infundibulum". Marine Life Information Network: Biology and Sensitivity Key Information. MarLIN. Retrieved 2015-03-15.
  4. ^ Mathieson, Arden; Fretwell, Kelly; Starzomski, Brian (2014). "Lobed comb jelly, lobed sea gooseberry: Bolinopsis infundibulum". Biodiversity of the Central Coast. University of Victoria. Retrieved 2015-03-15.
  5. ^ a b Båmstedt, Ulf; Martinussen, Monica B. (2015). "Ecology and behavior of Bolinopsis infundibulum (Ctenophora; Lobata) in the Northeast Atlantic". Hydrobiologia. doi:10.1007/s10750-015-2180-x.
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Bolinopsis infundibulum: Brief Summary ( anglais )

fourni par wikipedia EN

Bolinopsis infundibulum, commonly known as the common northern comb jelly, is a species of comb jelly in the family Bolinopsidae. It is found in the northern Atlantic Ocean and was first described by the Danish naturalist Otto Friedrich Müller in 1776.

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Bolinopsis infundibulum ( italien )

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Bolinopsis infundibulum è una specie di ctenoforo tentacolato, descritto per la prima volta nel 1776 dal naturalista Otto Friedrich Müller[1].

Descrizione

Bolinopsis infundibulum è uno ctenoforo ovale, lungo fino a circa 15 cm, dall'aspetto pressoché trasparente o biancastro. Presenta due piccoli tentacoli. La bocca si trova ad un'estremità del corpo, dove sono presenti due grandi lobi utili per la cattura del cibo. Qui sono presenti quattro auricole che producono correnti che permettono all'animale di catturare le prede[2].

Le 8 fila bioluminescenti di cteni permettono all'animale di muoversi agilmente lungo la colonna d'acqua, seppur l'animale sia planctonico. Gli cteni si muovono in modo sincronizzato, e ciò inoltre conferisce all'animale un aspetto iridescente[2].

Distribuzione

L'areale di Bolinopsis infundibulum è molto vasto: va dall'Atlantico settentrionale al mar del Nord, passando anche per il Mar Mediterraneo. Si può osservare a profondità notevoli (1000 m), ma normalmente gli individui più giovani si trovano a profondità minori[3].

Notevole è la sua somiglianza con la più nota noce di mare: caratteristica che ha reso criptico il riconoscimento delle due specie nel Mar del Nord. I primi avvistamenti di Mnemiopsis leidyi in quell'area risalgono infatti al 2005, ma non è da escludere che sia arrivato ben prima e che fosse stato confuso con B. infundibulum[4].

Aspetti ecologici

Le prede di B. infundibulum sono tutti deboli nuotatori che possono rimanere vittime delle correnti generate dalle tentille dell'animale: uova e avannotti di pesce, larve di copepodi, i veliger dei gasteropodi, i rotiferi e altro zooplancton[1].

Il Bolinopsis infundibulum è a sua volta preda di un altro ctenoforo: Beroe cucumis. Nel mese di maggio nelle acque norvegesi sono stati registrati fino a 250 individui per metro quadrato, seguiti da un rapido calo provocato appunto da quest'altro ctenoforo[5]. Individui più grandi di B. infundibulum sono stati segnalati da acque più profonde, predando copepodi, più avanti nel corso dell'anno[6].

Note

  1. ^ a b Edward E. Ruppert e Richard S. Fox, Invertebrate zoology : a functional evolutionary approach, Seventh edition, 2004, ISBN 978-81-315-0104-7, OCLC 970002268. URL consultato il 21 marzo 2021.
  2. ^ a b marinespecies.org, http://www.marinespecies.org/aphia.php?p=taxdetails&id=106393 Titolo mancante per url url (aiuto).
  3. ^ centralcoastbiodiversity.org, https://www.centralcoastbiodiversity.org/lobed-comb-jelly-bull-bolinopsis-infundibulum.html Titolo mancante per url url (aiuto).
  4. ^ Van Ginerdeuren K. et al., Distribution of the invasive ctenophore Mnemiopsis leidyi inthe Belgian part of the North Sea, in Acquatic Invasions, vol. 7, 2012, pp. 1-7.
  5. ^ link.springer.com, https://link.springer.com/article/10.1007/s10750-015-2180-x Titolo mancante per url url (aiuto).
  6. ^ link.springer.com, https://link.springer.com/article/10.1007%2Fs10750-015-2180-x Titolo mancante per url url (aiuto).

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Bolinopsis infundibulum: Brief Summary ( italien )

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Bolinopsis infundibulum è una specie di ctenoforo tentacolato, descritto per la prima volta nel 1776 dal naturalista Otto Friedrich Müller.

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Bolinopsis infundibulum ( néerlandais ; flamand )

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Bolinopsis infundibulum is een soort in de taxonomische indeling van de ribkwallen (Ctenophora).

De kwal behoort tot het geslacht Bolinopsis en behoort tot de familie Bolinopsidae. De wetenschappelijke naam van de soort werd voor het eerst geldig gepubliceerd in 1776 door O.F. Müller.

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Geplaatst op:
09-12-2011
Dit artikel is een beginnetje over biologie. U wordt uitgenodigd om op bewerken te klikken om uw kennis aan dit artikel toe te voegen. Beginnetje
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Lobekammanet ( norvégien )

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Lobekammanet (Bolinopsis infundibulum) er ei gjennomsynleg ribbemanet som vert opp til 15 centimeter lang. Ho finst langs heile norskekysten.

Kjelder

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Lobekammanet: Brief Summary ( norvégien )

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Lobekammanet (Bolinopsis infundibulum) er ei gjennomsynleg ribbemanet som vert opp til 15 centimeter lang. Ho finst langs heile norskekysten.

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Diet ( anglais )

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predaceous on fish fry, copepods, and other small organisms of zooplankton

Référence

North-West Atlantic Ocean species (NWARMS)

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WoRMS Editorial Board
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Kennedy, Mary [email]

Distribution ( anglais )

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Cape Hatteras to Arctic

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North-West Atlantic Ocean species (NWARMS)

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WoRMS Editorial Board
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Kennedy, Mary [email]

Habitat ( anglais )

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upper epipelagic

Référence

North-West Atlantic Ocean species (NWARMS)

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Kennedy, Mary [email]