Fisheries given a solution to overharvesting

 There are fewer fish in the sea literally. Consumer demand and inadequate scientific information has led to overharvesting, reducing fish species and fish stocks around the world. But University of Guelph researchers have identified a possible solution. They have developed a model that allows fisheries to net enough to meet rising consumer demand while ensuring adequate income and replenishment of natural stocks. The research was published in Proceedings of the National Academy of Sciences. “We know fish are getting rarer,” said John Fryxell, a U of G integrative biology professor…

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Concrete Pond Management: Steps to take before introducing the Fish in the Water

On my last article, we discussed about the steps to take before putting the fish into the water after constructing your earthen pond. Here we will discuss about the steps to be taken before introducing the fish in water in a concrete pond also. After constructing your concrete pond, the first step is to wash the pond thoroughly with detergent and a lot of water. This is to make the pond free of toxins from the cement used in plastering the walls. After washing, you can pump in water into…

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How to determine if your Housing is Conducive for your Fishes

The only way to know if your housing is conducive for your fishes is to check the state of your water and the reactions of the fishes inside the fish pond. Clean water will have enough oxygen which will make the pond good enough and okay for the fishes while dirty water will reduce the oxygen level in the pond and will also produce odors that will have negative effects on the fish. Immediately the fish pond is no longer conducive for the fishes, you will see them moving erratically…

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The Recommended Site for Sitting your Fish Farm

Question: Where do you recommend that I site my Fish Farm? Answer: The major factor which is not under your control is the availability of water. Therefore this should determine where your fish pond will be located. If you are interested in using an earthen pond, then your fish farm must be located in a swampy area.   Earthen Pond For concrete tank, the fish farm must have access to clean and enough water.   Concrete Pond. Other factors like security, how to get farm attendants etc are under your…

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Sea urchins: From pest to plate

Sea urchin grazes on kelp, creating deserts at the bottom of the sea. Credit: NIVA The genital gland of a sea urchin, the so-called gonad, is found inside the urchin. This organ stores nutrients, and contains milt and roe during the spawning season in spring. The gonads are very popular in sushi dishes in especially Asia, but also in other parts of the world. From pest to plate In the ECOURCHIN project (Sea urchin harvest: Ecosystem recovery, integrated management of social-ecological system, ecosystem service and sustainability), economists and natural scientists…

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How Climate change challenges the survival of fish across the world

This figure shows the risk that freshwater fish (top) and marine fish (bottom) could exceed their thermal limits by the year 2070. Blue indicates a low risk and red shows a high risk. Credit: University of Washington Story Source:n Materials provided by University of Washington. Climate change will force many amphibians, mammals and birds to move to cooler areas outside their normal ranges, provided they can find space and a clear trajectory among our urban developments and growing cities. But what are the chances for fish to survive as climate…

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