Robillard'S Dendronotid
EntdeckenInvertebrate
Robillard'S Dendronotid
dendronotus robilliardi
Robillard's Dendronotid is a stunning marine gastropod that inhabits cold-temperate marine waters. Like other members of the Dendronotidae family, this nudibranch is characterized by its magnificent, branching dorsal appendages, which resemble miniature underwater forests. These appendages, called cerata, not only assist in respiration but also mimic the hydroids upon which the animal feeds, offering superb crypsis. Observant divers and tidepoolers are often spellbound by the delicate, translucent bodies of these sea slugs as they slowly navigate rocky substrates. Their presence is a great indicator of a healthy, diverse benthic ecosystem rich in colonial cnidarians.
Lebensraum: Typically found in cold-temperate intertidal and subtidal rocky reefs, often clinging to bryozoan mats and colonial hydroids.
Aussehen
This species is a small nudibranch, typically reaching lengths between 1 to 5 centimeters. Its body is translucent white, sometimes flushed with pale orange, pink, or yellow undertones. It is adorned with branching cerata along its back, which have tipped variations of opaque white or golden yellow. Bright orange or reddish-brown speckles are often dotted across its body, and its highly branched rhinophores (sensory tentacles) protrude elegantly from the head, creating a complex, frilly silhouette that blends seamlessly into marine turf.
ReichAnimaliaStammMolluscaKlasseGastropodaOrdnungNudibranchiaFamilieDendronotidaeGattungDendronotus
Kategorie
InvertebrateSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
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Interessante Fakten
Its highly branched rhinophores function as chemical receptors, allowing the nudibranch to 'smell' food and mates in the water column.
Like many nudibranchs, it is a simultaneous hermaphrodite, possessing both male and female reproductive organs to maximize mating opportunities.
The elegant branching structures on its back act as gills, maximizing surface area for oxygen absorption directly from the seawater.
Besondere Fähigkeiten
Fähigkeit
Arborescent Crypsis
Its highly branched body appendages perfectly mimic the hydroid colonies it lives on, making it virtually invisible to visual predators.
Fähigkeit
Chemical Deterrence
It sequesters toxic or distasteful compounds from its cnidarian prey, rendering its own body unpalatable to potential predators.
Fähigkeit
Regenerative Cerata
If attacked, it can autotomize (shed) its branching cerata to distract a predator and later fully regenerate them without permanent damage.
Maße und Details
- Länge
- 1-5 cm
- Gewicht
- 0.001-0.005 kg
- Lebenserwartung
- 1 Jahre
- Gelegegröße
- 500-5000
- Brutzeit
- 7-21 Tage
Ernährung und Fütterung
Feeds almost exclusively on colonial hydroids, using its specialized radula to scrape and consume the individual polyps.
Hauptnahrung
- Colonial Hydroids
- Garland Hydroids
- Obelia species
Nahrungssuche
- Grazing
Ökologische Zusammenhänge
hunts
Garland Hydroid
Sertularella turgida
Preys directly on colonial hydroid colonies, stripping polyps from the branching stalks.
eaten by
Sunflower Sea Star
Pycnopodia helianthoides
Is occasionally preyed upon by specialized sea stars in rocky subtidal zones.
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Sicherheit
Gefahr
1/5 · Sehr gering
Noch keine besonderen Sicherheitshinweise.
Häufig gestellte Fragen
Wie identifiziert man Robillard'S Dendronotid?
Der einfachste Weg, Robillard'S Dendronotid zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von Robillard'S Dendronotid?
1-5 cm
Was ist der/die/das gewicht von Robillard'S Dendronotid?
0.001-0.005 kg
Was ist der/die/das lebenserwartung von Robillard'S Dendronotid?
1 Jahre
Was frisst Robillard'S Dendronotid?
Feeds almost exclusively on colonial hydroids, using its specialized radula to scrape and consume the individual polyps.
Wo findet man Robillard'S Dendronotid normalerweise?
Typically found in cold-temperate intertidal and subtidal rocky reefs, often clinging to bryozoan mats and colonial hydroids.
Wie jagt Robillard'S Dendronotid?
Grazing
Was ist der/die/das gelegegröße von Robillard'S Dendronotid?
500-5000
Snap-Karte
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