Amazing Raja Ampat Marine Biota

Raja Ampat Marine Biota

Raja Ampat Marine Biota

Amazing Raja Ampat Marine Biota – Raja Ampat is home to a variety of beauty and diversity of marine biota including invertebrates, animals without vertebrae. Various types of marine invertebrates inhabit various habitats in Raja Ampat.

Based on records there are 540 types of shellfish, 700 types of molluscs and various other marine invertebrates in this island district.

One of the Raja Ampat marine invertebrates that we will discuss this time is about Jorunna funebris.

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Funebris jorunna are invertebrates such as sea slugs in Phylum Molluscs.

This species belongs to hermaphrodite animals so it does not display sexual dimorphism.

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The body size of adult animals varies from 15 mm to more than 70 mm, with an average length of 35mm.

While the size of the larvae: planktotrophic = 166m and lecithotrophic = 290 m.

J. Funebris belongs to a carnivore and only eats sponges.

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J. Funebris

J. Funebris, like all nudibranchs, has deviated from most molluscs by losing a protective hard shell.

This species defends itself by disguising and colouring chemicals to avoid predators from above.

J. funebris inhabits reef lagoon habitat. J. funebris is one of the largest distribution nudibranch species in the world.

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In addition to Raja Ampat, J. Funebris is found in other Indonesian waters. J. Funebris is also found in Australian waters, New Zealand, the Indo-Pacific in general.

This species belongs to the Molluscum phylum, Gastropod class, Opisthobranchia subclass. OOrder of Nudibranchia, Dorididae suborder, Eudoridoidea Superfamily. Dorididae Family, Jorunna Genus and Funebris species.

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Opisthobranchia members are hermaphrodite. Which have male and female organs in one individual.

The outer part of the genitals consists of a complex tube to remove the autosperm. Accept allow sperms, and place the egg (oviposisi).

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The genitals are specialized in such a way as to prevent fertilization by themselves. Nudibranchs copulate with partners. According to their functions which can be male or female.

Copulation can be long or short. Depending on environmental conditions.

After copulation, sperm is stored in the place of egg formation, until fertilization finally occurs.

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