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A portable urine-diverting dry toilet as marketed by SOIL in Haiti under the name "EkoLakay". A portable or mobile toilet (colloquial terms: thunderbox, porta-john, porta-potty or portaloo) is any type of toilet that can be moved around, some by one person, some by mechanical equipment such as a truck and crane.
Aquaponics is a food production system that couples aquaculture (raising aquatic animals such as fish, crayfish, snails or prawns in tanks) with hydroponics (cultivating plants in water) whereby the nutrient-rich aquaculture water is fed to hydroponically grown plants.
They feed on ectoparasites and dead skin [3] found on other fish. [2] E. evelynae also feeds on sponges, sea squirts, coral polyps, zooplankton and free-living copepods. [3] Females tend to clean and feed more than males especially if they are accompanied by a large male, which may be due to mate guarding and the male spending more time ...
This method is considered to be the fastest and most humane method of killing fish. [4] Ikejime-killed fish is sought-after by restaurants as it also allows the fish to develop more umami when aged. [5] [6] It is very similar to the technique used on frogs in laboratories called spiking or pithing.
The chub fishery had nothing to do with the various cyprinid fish species known as chubs but was exclusively based on the various species of ciscoes. The fishery continued as cisco stocks fell and non-native species such as sea lamprey , rainbow smelt and alewife spread through the system and increased in abundance.
The Portable Aqua Unit for Lifesaving (short PAUL) is a portable ultrafiltration-based membrane water filter for humanitarian aid. It allows the decentralized supply of clean water in emergency and disaster situations for about 400 persons per unit per day. The filter is designed to function with neither chemicals nor energy nor trained personnel.
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