Aquaculture Nursery Articles
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Feed Pellets to Your Fish in A Correct Way
Fish pellets come in different sizes to accommodate the size of your fish. There are nursery feeds and grow out diets suitable for a wide range of fish jaws. You can crush the fish feed pellets in large size with a pair of pliers to feed small fingerlings and also can feed larger fish directly, but on the whole it’s necessary to get the pellet to match the size of your fish. Mature fish ...
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What is The Cost of Fish Feed and Feed Pelleting Machine in Nigeria?
I will like to know the cost of Fish Feed in Nigeria? And also how many times can one feed this fish? For people that want to venture into this business they will like to get this important fact right before venturing into the business. The frequency of feeding for fishes depend on the level of development or growth of the fish. For juvenile fish, feeding needs to be more frequent to to their ...
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Sustaining Mali’s Inner Niger Delta
The Inner Niger Delta in central Mali is a giant green oasis on the edge of the Sahara desert. It is one of the country’s most productive areas, but also among its poorest. At the height of the wet season, when the River Niger is swollen by heavy rainfall in Guinea, an area the size of Belgium, from Mopti to Tombouctou, turns into a landscape of lakes. As I discovered on a previous visit ...
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Evaluation of the short term 12 hour toxicity of 3‐trifluoromethyl‐4‐nitrophenol (TFM) to multiple life stages of Venustaconcha ellipsiformis and Epioblasma triquetra and its host fish (Percina caprodes)
This study evaluated the risk of 12‐h exposures of the lampricide 3‐trifluoromethyl‐4‐nitrophenol (TFM) to multiple life stages of the federally endangered snuffbox (Epioblasma triquetra) and its primary host fish the common logperch (Percina caprodes) as well as a surrogate to the snuffbox, the ellipse (Venustaconcha ellipsiformis). Life stages examined included free glochidia, 1‐wk ...
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Climate resilience (with oysters)
Earth’s rising temperatures mean more glacier melt, sea-level rise and severe weather, and this translates to heightened threats for coastline communities. In response, SCAPE Landscape Architecture — powered by President Obama’s Rebuild by Design Initiative — has proposed an innovative way to protect coastlines that also promotes biodiversity, environmental education and ...
By Ensia
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Nechako White Sturgeon Conservation Centre - Case Study
The Freshwater Fisheries Society of BC developed the Nechako White Sturgeon Conservation Centre to try to prevent extinction of this endangered species. Wild caught brood fish are held in the facility until spawning is complete. Controlled family groupings of young sturgeon are hatched in McDonald jars and reared for one year, first in 0.5 m3 and 1.5m3 combi tanks, then 8 m3 tanks before release. ...
By PR Aqua, ULC
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CYP1A expression in liver and gills of roach (Rutilus rutilus) after waterborne exposure to two phenanthrene derivatives, 1‐methylphenanthrene and 4‐methylphenanthrene
Phenanthrenes (Phs) substituted with alkyl groups are a class of compound present in the environment, and they appear to be toxic to developing fish. The present study aimed to investigate the effect of waterborne exposure to two monomethyl derivatives of phenanthrene, 1‐methylphenanthrene (1M‐Ph) and 4‐methylphenanthrene (4M‐Ph), on cytochrome P450 1A (CYP1A) gene expression in fish gills and ...
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