San Diego Dorid
EntdeckenInvertebrate
San Diego Dorid
diaulula sandiegensis
The San Diego Dorid is a fascinating marine gastropod mollusk, belonging to the group of shell-less marine snails known as nudibranchs. Widely distributed along the rocky Pacific coast of North America, this sea slug captivates beachgoers and tidepoolers with its elegant appearance and slow, deliberate movements. Unlike many colorful nudibranchs, it displays a sophisticated, understated palette of creams and browns, making it a master of camouflage among the sponges it inhabits. This species plays an important role in its local ecosystem, acting as a specialized predator of marine sponges. By consuming these organisms, the dorid not only controls sponge populations but also bioaccumulates toxic compounds from its prey, repurposing them for its own chemical defense system. Observing a San Diego Dorid in a tide pool provides a wonderful glimpse into the complex evolutionary adaptations of soft-bodied marine invertebrates.
Lebensraum: Found in rocky intertidal and subtidal zones, particularly on reefs, in tide pools, and under ledges where marine sponges are abundant.
Aussehen
The San Diego Dorid features an oval, slightly flattened body, typically ranging from cream to pale yellow or light tan. Its mantle is covered in numerous tiny, sensory papillae that give it a velvety, carpet-like texture. The most distinguishing identifier is the pattern of dark brown to black rings or spots scattered across its back, resembling leopard spots. Near the anterior end, it has two sensory rhinophores resembling small horns, while the posterior end boasts a conspicuous, flower-like rosette of retractile gills. It can grow up to 10 centimeters in length.
ReichAnimaliaStammMolluscaKlasseGastropodaOrdnungNudibranchiaFamilieDiscodorididaeGattungDiaulula
Kategorie
InvertebrateSeltenheit
Common
Gefahr
1/5 · Sehr gering
Snaps
Mach den ersten Snap!
Interessante Fakten
The dark ring patterns on each San Diego Dorid are entirely unique, acting much like a human fingerprint.
Their eggs are laid in beautiful, spiral ribbons that resemble white lace or ruffled carnation petals attached to rocks.
When threatened, they can emit a mildly acidic secretion that makes them taste terrible to potential predators.
Besondere Fähigkeiten
Fähigkeit
Chemical Camouflage
It absorbs toxic secondary metabolites from the sponges it consumes, using these noxious chemicals to deter predatory fish and crabs.
Fähigkeit
Caryophyllidia Armor
Its skin is packed with microscopic, glass-like calcareous spicules called caryophyllidia, providing a rough physical barrier against predators.
Fähigkeit
Gill Retraction
It can instantly withdraw its fragile posterior gill plume into a protective pocket inside its body when it senses vibrations or physical contact.
Maße und Details
- Länge
- 2-10 cm
- Gewicht
- 0.005-0.05 kg
- Lebenserwartung
- 1-2 Jahre
- Gelegegröße
- 1000-15000
- Brutzeit
- 10-20 Tage
Ernährung und Fütterung
This nudibranch is a highly specialized carnivore that feeds almost exclusively on various species of marine sponges by scraping them with its radula.
Hauptnahrung
- Purple Encrusting Sponge
- Breadcrumb Sponge
- Glove Sponge
Nahrungssuche
- Grazing
Ökologische Zusammenhänge
hunts
Purple Encrusting Sponge
Haliclona permollis
Feeds extensively on this encrusting sponge, scraping its tissue with a specialized radula.
eaten by
Leather Star
Dermasterias imbricata
Serves as a prey item for this predatory sea star, which is one of the few organisms capable of tolerating the dorid's toxic defenses.
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Sicherheit
Gefahr
1/5 · Sehr gering
Noch keine besonderen Sicherheitshinweise.
Häufig gestellte Fragen
Wie identifiziert man San Diego Dorid?
Der einfachste Weg, San Diego Dorid zu bestimmen, ist die Verwendung der Naturführer-App Snappit.
Was ist der/die/das länge von San Diego Dorid?
2-10 cm
Was ist der/die/das gewicht von San Diego Dorid?
0.005-0.05 kg
Was ist der/die/das lebenserwartung von San Diego Dorid?
1-2 Jahre
Was frisst San Diego Dorid?
This nudibranch is a highly specialized carnivore that feeds almost exclusively on various species of marine sponges by scraping them with its radula.
Wo findet man San Diego Dorid normalerweise?
Found in rocky intertidal and subtidal zones, particularly on reefs, in tide pools, and under ledges where marine sponges are abundant.
Wie jagt San Diego Dorid?
Grazing
Was ist der/die/das gelegegröße von San Diego Dorid?
1000-15000
Snap-Karte
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