Somatostatin

[HUKIT]

Does anyone have any links to scientific data or anecdotal evidence(this might be hard to quantify I assume) that aquatic or terrestrial plants negate Somatostatin(the hormone that regulates fish growth and metabolism)? I couldn’t really find any published experiments supporting his hypothesis that plants absorb somatostatin or are even reduced by plants alone, just a lot of “trust me bro” posts on aquarium forums. This conversation started with my close friend who’s a hobbyist as well and it’s regarding fish growth rates between our two systems for the same species.

 

[danotaylor]

I had actually never heard of somostatin mate. As as RN of 35 years, and 10 years of recent critical care experience I am intrigued though. Body mechanics is off great interest to me.
Quick search reveals it as a peptide hormone and neuropeptide, produced within the fish itself, that regulates growth (as you already know )
Because is internally produced, it would make no sense that plants would have any direct primary effect, positive or negative, in relation to its effect on fish.
Secondary effects of plant presence that affect growth could include nitrate reduction in the water column.
Other effects on somostatin production may include the quality of feed.
Do you and your friend live in the same area? Same source water? I wonder if the presence or lack thereof certain metabolites, minerals or other dissolved elements affect somostatin production?
Of course, these are more questions similar to what you are asking, and seeking documented evidence for….so I will graciously pipe down now, bow out, and wait to see if any of our research savvy peeps can give you more than a keenly interested persons unproven hypothesis

 

[phreeflow]

Does anyone have any links to scientific data or anecdotal evidence(this might be hard to quantify I assume) that aquatic or terrestrial plants negate Somatostatin(the hormone that regulates fish growth and metabolism)? I couldn’t really find any published experiments supporting his hypothesis that plants absorb somatostatin or are even reduced by plants alone, just a lot of “trust me bro” posts on aquarium forums. This conversation started with my close friend who’s a hobbyist as well and it’s regarding fish growth rates between our two systems for the same species.

I’ve heard of somatostatin but was always told larger fish release it to keep the competition from growing, hence carbon or water changes. Never heard plants could absorb it.

However, it seems danotaylor is on to something since it’s internally produced and affects said fish, not others. Did a quick search and I couldn’t find any studies about fish releasing “growth inhibiting hormones” as a competitive advantage at all, let alone any studies about plants uptaking it.

lol…I guess it’s all just a bunch of nonsense that’s been repeated throughout the years

 

[HUKIT]

I had actually never heard of somostatin mate. As as RN of 35 years, and 10 years of recent critical care experience I am intrigued though. Body mechanics is off great interest to me.
Quick search reveals it as a peptide hormone and neuropeptide, produced within the fish itself, that regulates growth (as you already know )
Because is internally produced, it would make no sense that plants would have any direct primary effect, positive or negative, in relation to its effect on fish.
Secondary effects of plant presence that affect growth could include nitrate reduction in the water column.
Other effects on somostatin production may include the quality of feed.
Do you and your friend live in the same area? Same source water? I wonder if the presence or lack thereof certain metabolites, minerals or other dissolved elements affect somostatin production?
Of course, these are more questions similar to what you are asking, and seeking documented evidence for….so I will graciously pipe down now, bow out, and wait to see if any of our research savvy peeps can give you more than a keenly interested persons unproven hypothesis

Yes sir our water conditions are nearly identical with PH around 8.2 and hardness of 300ppm. We both relatively feed the same diet, I don’t power feed and always feed the slow and steady method. I do substantially more water changes than he does as my tanks have never seen 20ppm of N03, where as his are generally 30-40ppm as his tank/sump are heavily planted.

I understand there are so many factors that can influence growth. What sparked the conversation is we both bought 12 Oscura heterospila(they’re a notoriously slowing growing species) from Kevin at TUIC before he closed.

I’ve heard of somatostatin but was always told larger fish release it to keep the competition from growing, hence carbon or water changes. Never heard plants could absorb it.

However, it seems danotaylor is on to something since it’s internally produced and affects said fish, not others. Did a quick search and I couldn’t find any studies about fish releasing “growth inhibiting hormones” as a competitive advantage at all, let alone any studies about plants uptaking it.

lol…I guess it’s all just a bunch of nonsense that’s been repeated throughout the years

I’ve always heard about fish releasing this specific growth hormone but didn’t know it was named Somatostatin until I started to dig into it a little bit. I just figured it’s like Santa Claus as you always hear about him but you’ve never actually seen him. He just so adamant that plants absorbs it, hence the reason why his have grown substantially more than mine. I will admit he’s got a doctorate in geology so he’s well educated. I’ve never really have been interested in planted tanks so trying to have a certain discussions with him is like a toddler talking to Neil deGrasse Tyson about astrophysics.