aquaculture

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DIY Project: A Garden Fish Tank

How To Build A Small Indoor Aquaponics System

Aquaponics is a system for the sustainable production of food that combines aquaculture (raising of fish, crayfish, talapia or shrimp in tanks) with hydroponics (the cultivation of plants in water with no soil).

This is a symbiotic relationship because the plants and fish both benefit from living together. The plant’s roots clean the water of ammonia and toxins, which helps the fish - while the fish provide the plants with nutrients, which are obtained from the fish pee and poop, as well as from ammonia excreted from the fish gills.

Buy An Aquaponics System: AquaFarm, GreenHome123, Aqualibruim

Students assess commercial viability of larva meal

Three students in Cornell’s Samuel Curtis Johnson Graduate School of Management have examined the commercial viability of using housefly larva meal as a sustainable, less-expensive protein alternative to feeding stock and farm-raised fish.

To coax houseflies into hatching larvae, copious amounts of cow manure is needed on which the flies can lay their eggs. Millions of flies can reduce manure mass by half, concurrently lowering manure’s nitrogen and phosphorus content. Meanwhile, the larvae can be harvested as farm feed that is chock-full of protein and essential amino acids.

Protein of high biological value is essential to animal feed. Shortfall of quality protein resources like fish meal poses a future challenge for feeding livestock, said Selvaraj, “Larva meal is an ideal ingredient to replace fish meal with identical protein content and amino acid profile.”

The larva of a housefly (Musca domestica) is pictured much larger than life-size. The larva has been hatched from an egg 1/20of an inch (1.27 millimeter) long. The mouth is at the pointed end.Bitannica Kids

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Hi Everyone!

Ok, so an update for you on the Deep Water Aquaponics System.

If you remember, we began planting this system on 9 March this year, so that makes it around 40 days from planting.

The standout for me are the red lettuces. They have turned a deep red colour and look great! Have a look at the first days planting and see what you think!

http://macedon-ranges-aquaponics.tumblr.com/post/113200990644

The Silver Beet too, the last week has seen a big jump in growth.
In fact since we added the aeration and the trout, it has leaped forward in health and growth.

The only significant laggers are the strawberries, they are very slow compared to the leafy greens both in foliage and root growth.

Other than that, the new system is really showing promise very early. It is yet to finish cycling, but it will get there! 

Very Happy!

A lethal and highly contagious marine virus has been detected for the first time in wild salmon in the Pacific Northwest, according to researchers in British Columbia. It is called infectious salmon anemia, and started in aquaculture salmon farms who import millions of eggs from Europe. The only barrier between the salmon farms and wild fish is a net, opening the way for pathogens to sweep in and out. No treatment exists for infectious salmon anemia. Enjoy those sockeye while you can!

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GLEYSOL

A Gleysol (Russian: gley is dialectical word глей, literally “clay”) in the FAO World Reference Base for Soil Resources is a wetland soil (hydric soil) that, unless drained, is saturated with groundwater for long enough periods to develop a characteristic gleyic colour pattern. This pattern is essentially made up of reddish, brownish or yellowish colours at surfaces of soil particles (peds) and/or in the upper soil horizons mixed with greyish/blueish colours inside the peds and/or deeper in the soil. Gleysols are also known as Gleyzems and meadow soils (Russia), Aqu-suborders of Entisols, Inceptisols and Mollisols (USDA soil taxonomy), or as groundwater soils and hydro-morphic soils. [Read more]


Living only a few metres above sea level, and also on a coastal wetland, it doesn’t take much digging to find the characteristic blue-grey layer of subsoil in the area I am cultivating.

I’m using this layer for a variety of things, but one such use is sealing a stormwater pond. By slowly bringing the subsoil to the surface, and allowing it to erode down the edges with each rainfall, I’m forming an an anaerobic layer that melds together, and will hold water  in the pond for longer and longer periods of time. 

This isn’t a way to make a pond with a consistent water level: the meaning behind a stormwater pond is that the water eventually disperses. However, having open water, even impermanently, attracts and nourishes all manner of wildlife and pollinators.


More soil science here.

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In ancient times the Nile valley was subject to periods of flooding that provided people with the irrigation and fertile soil needed to grow crops. Modern dams have radically altered that natural system, but a new proposal by architecture students in Nantes sees a different way of providing flood control while sustaining the environment. Silt Lake City is a “hydropolis” - a series of modular floating structures that take advantage of the rise and fall of the waters. Agriculture, residences, businesses and energy generators all float on the water and rise and fall with the tides.


Read more: Silt Lake City: Floating ‘Hydropolis’ Could Ride the Tide of the Nile River in Egypt | Inhabitat - Sustainable Design Innovation, Eco Architecture, Green Building
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Ok, so we planted chilli’s, and a new bed of parsley,  the strawberries are late but growing madly for a late run, we planted spinach under the pumpkin, and we are going to try two beds of Kale this season.

The green capsicum is also late to produce, we had only this big one all season but in the last week we have 5-6 more just budding.

We also got in more broccoli, and cauliflower, we are also trying rhubarb for the first time, along with cabbages and Brussel sprouts! AND snow peas.

We are already for another great season!

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Ok guys,
Its rare that i name a brand or support a brand of any product here unless i truely believe it deserves it. However I have a product that i will openly promote because of the fact that we have used it, and absolutely believe in it.
We have been experimenting with solar lighting in a rental property because we see it as a non-essential cost drainpipe. So many houses today have multiple fittings with multiple globes per room, and with soaring cost, its crazy.
I am very very happy to say that we have not had the requirement to flick on the lights in our kitchen and living areas, and have been almost completely electricity free in these areas for the better part of the last two months.
We have achieved this with the help from ‘Solar Gods’ http://www.solargods.com.au/solar-shop/nokero-solar-light-bulbs/
We are using 8 Nokero N220’s, (Shavano’s) at them moment, our aim is 12, beaut little solar globes that are just fantastic, we place them out in the mornings and hang them up at night.
Jobs done.
Even here in Victoria, Australia with such a small solar footprint we are achieving 4-5hours on the higher of the two settings and on the lower settings up to 8-10hours of use as a night light after a great charging day. And realistically, who needs more than 5 hours of light per night!
We are using 4 in each of the living areas, they are simple, un-intrusive, and are making a significant impact our our electricity bill.
If you rent, and are looking for a way to reduce your bills and get off the grid a little bit, I cant recommend these enough.
These lanterns were born from the necessity in Africa to eliminate the use of highly poisonous and flammable kerosene lamps that are the daily norm in African villages that simply have no power or too poor to afford it. Where the lack of lighting impacts on children’s education and study, where children would cluster at service stations just to read under the lights and needless to say the dangers involved in this.
Solar Gods are trying to promote these same innovative lanterns to our our indigenous communities in the remote areas of Australia. In my own Indigenous Studies during my degree, i have seen and read and learned about these areas and cant help but see how these little lanterns would make such a difference.