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Argulus foliaceus. Argulus foliaceus, also known as the common fish louse, is a species of fish lice in the family Argulidae. [1] It is "the most common and widespread native argulid in the Palaearctic" [2] and "one of the most widespread crustacean ectoparasites of freshwater fish in the world", considering its distribution and range of hosts. [3]
The life cycle of Dactylogyrus species is direct, having no intermediate host. The hermaphroditic adults are oviparous and produce eggs into the water which hatch prior to attaching to the gills of a fish host and developing into an oncomiracidium. [7] Adult Dactylogyrus lay about 4-10 eggs per day. [8]
Aspergillus aerius is a species of fungus in the genus Aspergillus.It is from the Aspergillus section. [1] The species was first described in 2017. [1] It has been isolated from an air treatment system in a production plant in the Netherlands. [1]
Simplified scheme of the life cycle of the fish parasite Ichthyophthirius multifiliis The life cycle of the parasite is direct, which means that no intermediate hosts are included in transmission. It includes a trophont stage residing in the fish surface (gill epithelia, skin and fin epidermis).
A team led by scientists at Lancaster University in the UK found that the fish are becoming more scared of humans and spending less time on courting behavior, with potentially important impacts on ...
It has a polymorphic life cycle, ranging from free-living cells to large colonies. [196] It has the ability to form floating colonies, where hundreds of cells are embedded in a gel matrix, which can increase massively in size during blooms. [197] As a result, Phaeocystis is an important contributor to the marine carbon [198] and sulfur cycles ...
These fish are best kept with live or frozen feed and they easily outgrow the tank within eight to ten months. An aquarium with the minimum diameter of 6 by 3.5 feet (1.8 by 1.1 m) and 300 US gallons (1,100 L; 250 imp gal) is suggested as a bare minimum but 400–800 US gallons (1,500–3,000 L; 330–670 imp gal) is the best way to go. [ 9 ]
Aequorea victoria, also sometimes called the crystal jelly, is a bioluminescent hydrozoan jellyfish, or hydromedusa, that is found off the west coast of North America.. The species is best known as the source of aequorin (a photoprotein), and green fluorescent protein (GFP); two proteins involved in bioluminescence.