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| Trout dying http://byap.backyardmagazines.com/forum/viewtopic.php?f=29&t=10350 |
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| Author: | edwood [ Aug 22nd, '11, 17:01 ] |
| Post subject: | Trout dying |
hi i have had some of these trout in the system for nearly 2 years now i am starting i see some fish die all fish i have removed have had eggs come out of them has anyone seen this before |
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| Author: | arbe [ Aug 22nd, '11, 17:18 ] |
| Post subject: | Re: Trout dying |
Not seen it but heard of it - possibly on this forum even. I am sure Troutman will make a comment when he sees this thread. Edit: Troutman may not need to make a comment. He has already done that in this thread. |
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| Author: | edwood [ Aug 22nd, '11, 19:23 ] |
| Post subject: | Re: Trout dying |
arbe wrote: Not seen it but heard of it - possibly on this forum even. I am sure Troutman will make a comment when he sees this thread. Edit: Troutman may not need to make a comment. He has already done that in this thread. thanks for the link |
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| Author: | Outbackozzie [ Aug 22nd, '11, 20:10 ] |
| Post subject: | Re: Trout dying |
Yup, Id say eggbound after two years as well, whats their sizes? |
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| Author: | edwood [ Aug 24th, '11, 16:55 ] |
| Post subject: | Re: Trout dying |
Outbackozzie wrote: Yup, Id say eggbound after two years as well, whats their sizes? they would br about 350mm to 400mm long i think |
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| Author: | earthbound [ Aug 24th, '11, 17:55 ] |
| Post subject: | Re: Trout dying |
They sound fairly small still for 2 years in a system. But yeah, from what I've heard from troutman, he said about 2 years life span. Quote from the link Arbe had earlier : Quote: No hormones needed to spawn trout, the eggs are easily stripped & fertilized by hand when the fish are ready.
Not all fish can re-absorb their eggs Rup and Trout generally cant. As a result the females will usually die when they become egg bound having two years worth of eggs remaining in their body. Of course this wouldnt happen in nature as the fish would normally spawn in a creek and rid itself of its eggs. There are quite a few trout farms around the Mt Barker area though many have closed up in recent years with the declining rainfall. Of all the ones I know of none ever breed their own fish and some of these were turning out 40 000 trout a year. Its no coincidence that WA's two major trout hatcheries are located on permanent cool flowing streams. |
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