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Aplysia concava Concave Dwarf Sea Hare

Aplysia concava is commonly referred to as Concave Dwarf Sea Hare. Difficulty in the aquarium: There are no reports available yet that this animal has already been kept in captivity successfully. Toxicity: Toxic hazard unknown.


Profilbild Urheber Dr. Ilze Keevy, Australien

Aplysia concava,Australia 2023


Courtesy of the author Dr. Ilze Keevy, Australien Dr.Ilze Keevy. Please visit www.inaturalist.org for more information.

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lexID:
17142 
AphiaID:
531601 
Scientific:
Aplysia concava 
German:
Konkav Zwerg-Seehase 
English:
Concave Dwarf Sea Hare 
Category:
Sea Hares 
Family tree:
Animalia (Kingdom) > Mollusca (Phylum) > Gastropoda (Class) > Aplysiida (Order) > Aplysiidae (Family) > Aplysia (Genus) > concava (Species) 
Initial determination:
G. B. Sowerby I, 1833 
Occurrence:
Australia, Lord Howe Island, New Zealand, Tasmania (Australia) 
Marine Zone:
Intertidal (Eulittoral), intertidal zone between the high and low tide lines characterized by the alternation of low and high tide down to 15 meters 
Sea depth:
Meter 
Habitats:
Algae zones, Seawater, Sea water 
Size:
2,5 cm 
Temperature:
°F - 27,1 °F (°C - 27,1°C) 
Food:
Algae (Algivore), algae grazer, epiphytes feeder 
Difficulty:
There are no reports available yet that this animal has already been kept in captivity successfully 
Offspring:
None 
Toxicity:
Toxic hazard unknown 
CITES:
Not evaluated 
Red List:
Not evaluated (NE) 
Related species at
Catalog of Life:
 
More related species
in this lexicon:
 
Author:
Publisher:
Meerwasser-Lexikon.de
Created:
Last edit:
2025-01-14 13:10:55 

Info

Aplysia concava G. B. Sowerby I, 1833

Sea hares feed on algae. They eat various types of algae, kelp and seaweed. In the process, plant parts are rasped off with the rasping tongue (radula). Microscopic food particles are also ingested with the algae. They are often used in aquaristics for algae problems, but with the end of their food they also get nutritional problems.

For protection against predators there are some species that additionally store the toxin aplysiatoxin. This aplysiatoxin is a product of cyanobacteria, which grow on certain types of seaweed. These are ingested along with the algae.

Sea hares are good algae eaters after a usually difficult acclimation period and are also not very picky about the algae. When acclimating, be sure to use the droplet method, as they are extremely sensitive to density fluctuations.

Thus, in addition to the usual filamentous algae, Wrangelia argus and so-called smear algae are often not spurned.
If no more algae are present, then it does not take long and the ea hare starves to death.

However, you can also offer it over-scalded lettuce as a substitute food, but then you should also looka for a substitute home.

Attention, important:
If you want to keep a sea hare, be sure to provide shelter so they don't get caught in a flow pump and shredded.
Dying sea hares are capable of causing the entire fish and crustacean population to die within a short period of time.
If the dead sea hare is not discovered in time, it is imperative to perform a very generous water change and additionally filter with charcoal to filter out the released toxins

Synonymised names
Aplysia (Pruvotaplysia) concava G. B. Sowerby I, 1833 · alternative representation
Aplysia norfolkensis G. B. Sowerby I, 1869 · unaccepted > junior subjective synonym

External links

  1. nudibranchdomain.org (en). Abgerufen am 14.01.2025.
  2. researchgate (en). Abgerufen am 14.01.2025.

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