Saltvandsforum.dk

Hvad sker der her ?? mine to sandsøstjerner har ligget oven på hunanden i 3 uger nu, og de skiftes til at være øverst ??

Kan ikke svare helt på dit spørgsmål.. Men fed overskrift!

Jeg selv og pederrevnørd har også oplevet det flere gange med vores sand søstjerner. Og vi blev enige om at de bare fejre "onsdag" i rigtig mange dage fordi de kan.! Hehe

Det er deres måde at pare sig på De ligger sig ovenpå hinanden for at øge sandsynligheden for at deres sæd/æd rammer hinanden, når de udskiller dette

"Like other starfish, Archaster typicus is a broadcast spawner, the male and female starfish each liberate their gametes into the sea where fertilisation takes place. However, in contrast to most other starfish, Archaster typicus performs pseudocopulation. Specimens reach sexual maturity at a radius of 29 mm.[5] About two months ahead of spawning the starfish begin to congregate, with males in particular becoming more mobile. A starfish can tell whether another is male or female, probably by chemotactic recognition. On recognizing a female, the male will climb on top of her and may remain there for two months. The female can move about and feed but the male is more restricted in his activities. During this time they synchronize their gonadal activity so that when the female is ready to spawn, so is the male. When she releases her eggs, he releases his sperm almost simultaneously thereby increasing the chances that successful fertilisation will take place.[6][7] Mating occurs in September and October in the Philippines and pair densities reach up to 7 pairs per square meter during full moon, whereas during new moon none are found.[5]"

Sakset fra wiki Man burde næsten give sig tid til hurtigt at oversætte dette til saltvandswiki.dk, der er flere og flere der oplever det

tak for info.....Jeg troede faktisk bare at de var blevet lidt småtossede, måske de havde drukket for meget saltvand, eller fået en od seaklear ;0)