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Kan musslor flytta på sig ?


jimmy

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I akvarium är det troligen principiellt omöjligt att få avkomman till musslor som förökar sig (att få de genomföra själva "sexualakten" är inte omöjligt) att överleva. De musslor som finns på marknaden är såvitt jag vet samtliga odlade i havet, där de odlas som människoföda i första hand.

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Håller med kul att det pratas om musslor oxså å bra länkar etc

Men men har jag fattat det rätt tro.

De matar musslorna med anabola steorider/köns hormonermedel för att utveckla produktions/lek (Serotonin)

serotonin.jpg

http://www.geile-muscheln.de/vermehrung.php

babbelfish översättning:

Vermehrung

Giant shells reach your full sexual ripe one specifically with approximately 3 to 7 years. Some shells will develop gradual female gonad as males within two years sexually actively and then.

brutstock.jpg Although giant shells possess male and female sex organs (Hermaphroditen), it furnished nature that the release by sperm cells and the eggs are temporally transferred. This is to prevent a self fertilization. Normally first the sperm cells are released, then the eggs. If it comes nevertheless to fertilization of the eggs with genetically identical sperm cellses, it was proven that these are hardly lebensfaehig. The gonads are in the proximity of the heart bag. Since the shells do not have samenblase or ovaries, these are delivered by contractions muscles directly into landing on water Rome inside the shell.

serotonin.jpg The sperm cell release in a breed tank can by supplying aufgeweichten gonad or hormones, as Serotonin are artificially released.

In some farms the shells are set artificially under stress, by ensuring them in the sun up to 34° C warm up-warming up this likewise, as in the aquarium, to a delivery of sperm cellses and eggs.eiabgabe.jpg Depending upon method it can last then up to 30 minutes, until the germ cell delivery begins. Billion sperm cells and several millions about 100 Micron large eggs will deliver.

In contrast to the breed in the aquarium, the shells are put into large containers for the delivery of your eggs.

After the Eiabgabe the abgesammelten sperm cellses of another animal will become to it-given and the eggs fertilized.

Despite the immense quantity of the fertilized eggs many die still forwards reach the first stage off.

However the genetics of the shell can be steered well by this method.

Growth

Approximately 12 hours after fertilization slip the larvae. In this stage they take up still no food. Now every 12 hours a further metamorphosis to it takes place about 160 Micron is long and solved organic food and the first Zooxanthellen takes up. Already in this size they are clam-shell. Only after the next transformation these are capable of the symbiosis. After approximately one week they train their foot. In this time they determine at the soil, change themselves the place however again and again. After approximately 9 days they begin with the production of the first Byssusfaeden. In the course of the next 2 weeks the Larvalphase ran off and the shells becomes sessil. With the larger kinds this Larvalphase is somewhat shorter.

During the Larvalphase taken up Zooxanthellen passes the stomach and intestine of the young shells, in order by special cells to be taken up. These cells encase the Zooxanthellen and transport these into the oil pockets of the coat rag. Contrary to the korallen the alga bags of the shell are directly connected with the stomach/intestine range.

The algae begin to grow then in the tubular system of the coat rag. It has the appearance the fact that the shell does not recognize the alga and therefore like used food does not digest it, but the algae the conditions to have adapted and a surface protein structure developed, which protects them against digesting. For the alga the symbiosis is just as very delightful. The shell nourishes and protects the alga.

A dreiwoechige shell has up to 200 alga cells during an attained full growth shell several hundred million of it to have might.

Hybrid ones between the kinds are well-known and one know the following crossings:

H. porcellanus x H. hippopus

T. maxima x T. crocea

T. that ASP x T. gigas

T. crocea x T. that ASP

T. squamosa x T. gigas

Within the ranges around the equator the hybrids accumulate themselves up approximately, while within the northern, more southern ranges the individual Tridacnakinds has own cyclecycle cycles, so that the hybrids are rarer.

Fastest now the T. grow gigas with up to 10 cm in the year, while the smaller kinds such as T. maxima only 2 - 4 cm in the year to grow can. Growth can be still substantially increased by special fodder additions in the breed farms.

tridacna_crocea1.jpg

The giant shells can become years old up to 200. Most, above all the smaller kinds, have one life span of maximally 8 - 20 years, T. crocea i.d.R. only 4-5 years.

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