Tampilkan postingan dengan label sustainable. Tampilkan semua postingan
Tampilkan postingan dengan label sustainable. Tampilkan semua postingan

Minggu, 26 Juni 2016

Arctic Char In Sustainable Farming

picture of high density arctic char farming in tanks
Arctic Char Growing In Tanks
My experiences raising Arctic Char in land based farms using tanks and raceways, with groundwater supplies and water recirculation aquaculture systems, have been positive overall.

I am what you may call a Charr fanatic since the early eighties and most of my experience has been hard won. The road to now has had its share of bumps and even a couple of cliff sized falls. There have fortunately also been some sunny times and even pay days. It has been interesting and rewarding in many ways but also frustrating at times.

I have grown Char at stocking densities that exceed the normal for rainbow trout or salmon in similar farming systems. In a properly designed and operated land based farm, this factor can lead to increased production amounts per unit of rearing space. The high density stocking characteristics of the species can allow the production intensification necessary in controlled systems and provide increased economy of scale, helping to offset the increased costs of building eco-friendly land based fish farms.Full article published at northernaquafarms.com "Arctic Charr Aquaculture - History and Experiences in Canada"

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Minggu, 12 Juni 2016

Family Farms Sustainable Aquaculture

Much of what we read in the mainstream media today, concerning Aquaculture and the issues of sustainability is generally focused upon large scale farming activities. Without arguing the pro’s and con’s of large scale aqua farms (that’s a topic for another discussion) I feel the need to point out that small scale family farming or even subsistent aquaculture activities are often overlooked by the media.

Perhaps practicing aquaculture to diversify the survival opportunity available to the family farm or farming fish to create food to eat isn’t as newsworthy or as "sensational" a debate as the debates of “corporate farming, versus “eat wild fish” campaigns are. None the less, Aqua Farming as a way of life is beyond a shadow of a doubt important in many cultures and many countries, and has been for centuries.

Aqua farming has for many centuries played an important role in the continuation of family owned farms or small scale enterprises in many parts of the world. In numerous cultures fish farming has made an important contribution to ensuring the continual supply of wholesome food for thousands of families and communities. Indeed a great portion of the present day farmed fish production is still undertaken to supplement food supplies.

In developing countries and/or low-income food-deficit countries aquaculture has been growing steadily at an average rate of about 10 percent per year since 1970. Why? Fish farming has been practiced for thousands of years as a means of reducing the time and effort associated with hunting food. Much of todays farming activity is still taking place in the same areas as it was 1000’ s of years ago.

Aqua farming continues to reduce the reliance on the hunting and gathering of aquatic creatures and plants. Perhaps there is a message in this, considering that the FAO estimates that the cost of catching fish in the wild, on a global basis, is about 25% higher than the value of the catch.

Contary to mainstream belief the majority of the world’s aqua farmers, do not attempt to by pass the rules of nature, they seek to enhance them. It has been long realized and understood that without enhancement or farm production many of the world’s fish populations would have already succumbed to our demands.

Fish farming is based upon a similar need and demand, that brought about the reasoning behind the farming of any plant or animal. In simple terms farming came to pass because the the food supply and the requirements to support us were out of balance. Humankind couldn’t hunt enough food so we realized that some of that food had to be grown.

Today we know for certain that the wild fish stocks cannot support the food demand placed upon them, thus mankind has been negated to enhance our fish resources.

Like it or not, it is a fact of life, most of the controversy surrounding fish farming doesn’t have a terrible amount of importance to the person that grows fish to eat, nor the person that has witnessed a collapse of a wild fishery that was their traditional family livelihood.

Catching wild stocks without giving anything back is called fishing without regard! The sum of which doesn’t compute. Keep fishing , cross you fingers that the fish will come back.

Catch what we can, then sell the catch. Just how is that more sustainable than families growing fish to eat? Or the small farmer that serves a fresh product to local customers?

If the world relied upon wild fish stocks alone, we would have been responsible for eliminating most fish stocks 10 – 20- years ago.

Family farming of fish is a positive answer to the concerns and issues of sustainability.

We only need to look at small farms that raise fish as an alternative crop in a land based farm. Many use aquaponics where the waste nutrients produced by the fish is used to grow other crops without using chemical fertilizers. Then we can begin to understand that Aquaculture is and can be a much different activity than what we read about in the mainstream media.

Look at a family farm operated by people that want to keep their land and want to be proud in delivering a quality product. You’ll find that many have a near zero impact upon the environment

Many family farms today have been started and continue on the same principles, and yes they survive. They just dont make the waves of media.

Aquaculture Information Website

Rabu, 04 Mei 2016

Loblaws moving toward selling only sustainable seafood

Loblaws a Canadian food chain that boasts it is the countrys largest buyer and seller of seafood, as begun introducing its sustainable seafood drive in 18 stores before a national rollout.

The grocery giants goal is to sell only sustainable seafood by the end of 2013. Shoppers are already encountering some empty trays at some Loblaw fish counters. The empty trays contain signs pointing out that Chilean sea bass, orange roughy, skate and shark are species at risk. Eco-friendly alternatives – such as sablefish or Pacific halibut instead of the Chilean sea bass – are suggested as alternatives.

To guide seafood buyers, Loblaw also posts certification labels from the Marine Stewardship Council, a non-profit, international agency. A new Aquaculture Stewardship Council certification for farmed fish is also being developed. It is expected to be completed in two years. Standards have already been set for tilapia and Vietnamese catfish.

Jeffrey Hutchings, a biology professor and marine conservation expert at Dalhousie University, says 80 percent of the worlds fisheries are "fully fished, overfished or depleted." For example, he says the southern St. Lawrence cod fishery, once the largest source of cod in the world, may be gone in 20 to 40 years.

Full Story Link Toronto Star

The move towards more sustainable seafood supplies has been talked about and on-going in one degree or another for quite some time now. I welcome the news that companies such as Loblaws are taking a stance and making concrete moves to reduce the amount of seafood from non sustainable sources.

According to the FAO, "sustainable fisheries and aquaculture means the harvesting and farming of fish stocks in a manner that meets the needs of the present without compromising the ability of future generations to meet their own needs".

More on the subject of fisheries sustainablity

Kamis, 07 April 2016

Aquaponics use in sustainable fish and plant farming

Aquaponics use in sustainable fish and plant farming

This post provides a quick review of the NorthernAquaFarmsCom recently updated web page containing an introductory article that describes aquaponics in simple terms.

The Following is an exert from the article:

Modern day aquaponics is essentially the rebirth of age old practices to farm vegetables, herbs and fish in a self contained eco-system. It is an eco-friendly way to naturally produce quality food for home use or for sale. This scalable farming method is experiencing renewed interest worldwide with many small home growers and large operations employing the process as a means of producing sustainable fish and plant crops. Read More

Northern Aqua farms has also added a new web store offering a wide range of Aqua Farming and Hobby farming Books, Ready to assemble Home Aquaponics Systems, outdoor apparel and outdoor equipment and gear.
 

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