This species can be found with soft pustules, leading to a rather knob-like appearance. 1993). Beeman, R. D.: An ecological study of Phyllaplysia taylori Dall 1900, Gastropoda: Opisthobranchia, with an emphasis on its reproduction.
2004. Their
Avoid eating wedge sea hares unless properly cooked and prepared. The last several days my sea hare has been acting funny. The indifference to chemical defences may allow wedge sea hares to utilise the chemical defences of algae for their own defence. An decrease in the degree of head withdrawal response with continued presentation of the stimuli suggest some habituation to the stimuli. They will often hide in seagrass, sand and mud, feeding on algae. In the wild, Dolabella auricularia and other Aplysia family sea hare slugs enjoy living in slow-moving ocean waters and is camouflaged to blend in with its food, while it is eating and improve their odds of becoming food for something else. A large chain of slugs can produce up to 80 million eggs at a time. Dolabella auricularia, also known as the wedge sea hare, is a species of large sea slug, a marine opisthobranch gastropod mollusk in the family Aplysiidae, the sea hares. Even though sea hares are hermaphroditic, they are not self-fertilizing, so two slugs are required to breed. So if you do decide to add one to your tank, please have a good plan for what you want to do once they clean up your tank.
Most species are easy to keep in an aquarium as long as there are enough algae, although some species do have slightly more specific food requirements. Since sea hares like the dolabella are so adept at taking care of algae problems, some shops rent them out to help keep them properly fed and help aquarium owners get rid of problem algae. These guys are great at taking care of hair algae but if you run out of algae they won't last long. J. mar. More about that later. you intend to keep this animal in your tank, over the long run, you will most likely have to feed it daily with sheets of dried macroalgae, like nori, although some individuals might not take prepared/dried algae like that. The only reason I got rid of mine was because I was not able to feed him consistently every day (work and travel) and they are pooping machines. Their mixed diet allows for an better growth rate than eating a single species of algae (Pennings et al. Like all sea hares, it ejects a purple ink when disturbed.
1978). Theory and management of tropical fisheries. Each individual was stimulated by touching the rhinopores and stroking the anterior tentacles with a blunt dissection needle to induce a defensive head withdrawal. 1, 725 pp. If symptoms appear, see a doctor as soon as possible. While far from perfect, (all crabs are opportunistic eaters and might take the opportunity to eat something you don’t want them to), the mithrax crab, if it causes problems, will cause problems much more slowly than a sea hare. Sea hares have a lifespan of about one year, dying shortly after laying their eggs. Download Reef App on Google Play or App Store, Marine Invertebrates (PocketExpert Guide), Aquarium Invertebrates: Sea Slugs - Part 1, The Stomach-Footed Mollusks, Class Gastropoda, Subclass Opisthobranchia, Sea Slugs. Ihre Sicherheit, auch die Ihrer Daten, ist uns sehr wichtig. If you’re looking for a challenging, unusual invertebrate to add to your tank, take a look at the Aplysia Sea Hare Slug Due to the possible toxins, a sea hare can release, and it’s specific care requirements, this species is considered very difficult to keep.
You will also find there a link to a page of references on the biology of Dolabella. The small sample size, lack of proper controls and time constraints all presented considerable limitations to conclusions of the results in this study. Hallo, habe den kleinen auch geholt, erstens wegen vieler Aufwuchsalgen, zweitens weil ich ihn bei einem Bekannten sah und ihc ihn für ein lustiges schönes Tier halte. Description. In Cebu, Phillippines, there was no difference between ingestion rates of algae with the time of day but smaller wedge sea hares ate less algae than larger ones (Lozada et al. On the other hand there are small nudibranchs, especially … Spawning and recruitment were found to occur throughout the year with peaks in May to July and September to October. biol. Special aquariums may cover tanks with low salinity, sub-tropical temperature, deep sand bed, sea grass etc. U.K. 47, 565–590 (1967b), Kandel, E. R.: Behavioral biology of Aplysia. There are fossil records of † Dolabella aldrichi from the Early Miocene, found in the Chipola Formation in Florida . Marine Invertebrates (PocketExpert Guide) - TFH Publications / Microcosm Ltd. - (English)Robert Toonen. This is because of the poisonous ink they have inside them and use to protect themselves. Withdrawal reflexes are known to be affected by an animals’ ‘state’, such as hunger (Advokat 1980). Ich hatte eine größere Fadenalgenplage in meinem 200Liter-Becken und habe den Seehasen als Lösung probiert, um ihn irgendwann nach Erledigung der Arbeit weiterzugeben, da er ja doch zu groß werden würde. ball around the piece of algae and bring its oral lobes, A distinctive characteristic of sea hares in general is inking when
The mean duration of head withdrawal of 10 trials was recorded. No evidence of habituation or retention of learning was observed with time since first stimulation (P > 0.05, Fig. Ass. Sea hares require a great deal of algae to survive, so it is advisable to pass it on when its task is accomplished.When it dies, a large amout of nutients are released to the water, so it must not be kept too long without sufficient algae. Dolabella auricularia is a rather large species which can reach a length of 40 centimetres (16 in). Giftigkeit: Vergiftungsgefahr unbekannt. Heute lag er leblos vor dem Riff und die Garnele saß auf ihm. Always reef safe: No sources indicate that this species will harm corals or other invertebrates. Wenn Sie diese Seite weiter verwenden, erklären Sie sich damit einverstanden. Nach vorsichtiger Eingewöhnung hat das Tier auch sehr gute Arbeit verrichtet und super die Algen abgegrast.
As it doesn’t eat every algae type, in case of a specific algae plague, find out more precise information. Sea slugs like the aplysia family of sea hares are still relatively rare, in the saltwater aquarium hobby–because of their specialized eating requirements and the dangers of inking. [1] It has a short, blunt head. Meeresforsch. Like most aspects of sea slug biology, there is no general rule concerning their life history and life span.
Our partners can also use these cookies and data like IP-address for personalized advertisement. Evidence suggests that the toxicity and colour of the ink of
If that doesn't work, please contact support so we can address the problem. This species is very sensitive during transportation and acclimatizing into the aquarium. This site participates in the Amazon Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees at no additional direct cost to you by linking to some products on Amazon.com.
2004. Increasing the intensity of the stimulus towards the end of the trials produced the same complete head withdrawal response as those at the start of the trials (J. Kong, personal observation). This delicacy is called in the Philippines Lukot or Lokot.
Bilddetail, © Anne Frijsinger & Mat Vestjens, HollandEingestellt von AndiV.Mit freundlicher Genehmigung des Urhebers Anne Frijsinger & Mat Vestjens, Holland (Anne Frijsinger & Mat Vestjens, Holland) Bilddetail, Der letzte Beitrag in der Unterhaltung über Dolabella auricularia, Wenn Sie noch kein Benutzerkonto haben, können Sie sich kostenlos registrieren. The Dolabella Sea Hare also known as Wedge Sea Hare is a very effective algae eater and will clean up hair algae in no time. Aquarium Invertebrates: Sea Slugs - Part 1, Part II - Advanced Aquarist - (English)Bob Fenner.
32, 389–395 (1975), Pauly, D.: Single-species dynamics in a multispecies context, pp 33–70. This is an odd, but natural phenomenon that occurs annually throughout the world.
Range: Indo-West Pacific Ocean Size: 16 inches (40 cm) Natural Environment: Inhabits intertidal zones where seaweed and seagrass occurs and is usually seen to depths of about 6 to 30 feet (2 - 10 m). All sea hares are hermaphrodites, which means each individual has both male and female reproductive organs, which would make establishing a pair easy, in theory, however they are considered to be difficult to breed in the home aquarium. "Minimum volume" indicates the size of the tank needed to house this species under optimal conditions. It is also present in the Philippines.
In the wild, Aplysia californicus and other sea hares sometimes mate in chains of three or more individuals. Once attached, they will feast and double their weight every ten days. Box 1501, Makati, Metro Manila, Philippines, Marine Laboratory, Silliman University, Dumaguete City, Philippines, You can also search for this author in
Have a look at the Dolabella references page for some relevant literature. Cookies are also used analyse traffic. Individuals were stored collectively in an aquarium constantly aerated with seawater pumped directly from the sea.
wedge sea hares come from. Wedge sea hares
A Dolabella Sea Hare looking for food on our Blue Ridge Coral. Es wird ein Aquarium von mindestens 450 Liter empfohlen. Your best bet is to phone around to the local fish stores (particularly the more specialized stores) and check out the popular online retailers that do have them listed on their sites. A value of Z=3.66, corresponding to an annual survival rate of 2.6%, was estimated for the juveniles and adults from a length-converted catch curve. If you have copper in your water, it will kill your sea hare. In the aquarium on Heron Island, the sea hares ate the red algae, When given algae in the aquarium on Heron Island, the wedge sea hare
1). If you (like me) have decided that the sea hare is fascinating but too risky to add to your tank, you might be interested in keeping one of these other fascinating and beautiful invertebrate species: Save my name, email, and website in this browser for the next time I comment. They have big appetites and need a lot of green stuff to survive. einer Woche begann meine Lysmata amboinensis sich für den Hasen zu interessieren. These sea hares inhabit the Indian and North West Pacific ocean. It can be recognized by a flattened disk on the posterior surface of the animal. Die letzten beiden Tage wurde er dazu auch etwas hektisch da die Garnele ihn ständig störte. auricularia. Watch out below! It could be rocks, decorations (if you have them) or even coral frags.
Vie Milieu Ser A 21 (1A), 189–211 (1970), Beverton, R. J. H. and S. J. Holt: A review of the life spans and mortality rates of fish in nature and the relation to growth and other physiological characteristics, pp 142–177.
They become free-swimming larva that after 30 days, search out algae to attach onto. Ronald L. Shimek. are not fast swimmers, thus cannot escape predators easily (Rudman
Biochem.
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