scholarly journals Studies on hatching rate of brine shrimp cysts from Barkol Lake in Xinjiang, China

1995 ◽  
Vol 7 (2) ◽  
pp. 157-163
Author(s):  
Ma Zhizhen ◽  
◽  
Chen Huiyuan ◽  
Wu Zhenbin
1998 ◽  
Vol 55 (4) ◽  
pp. 861-868 ◽  
Author(s):  
S Laurie Sanderson ◽  
Mark E Mort ◽  
Joseph J Cech, Jr.

Insectivorous Sacramento squawfish (Ptychocheilus grandis) and omnivorous benthic-feeding California roach (Hesperoleucus symmetricus) were exposed to suspended styrene microspheres (31-90 µm) or brine shrimp cysts (210-300 µm) in the presence of finely crushed Tetramin flakes or adult Artemia. These fish species retained small numbers of microspheres, and significantly more brine shrimp cysts than microspheres. During a 10-min period, they swallowed all of the brine shrimp cysts from a volume of water equivalent to 1-15 times their body volume. Squawfish and roach do not possess the morphological features of the branchial apparatus and palate that are associated with suspension feeding in confamilial Sacramento blackfish (Orthodon microlepidotus). The brine shrimp cysts could have been trapped between squawfish and roach gill rakers, while the microspheres as well as the brine shrimp cysts could have been retained on mucus-covered buccopharyngeal surfaces. These results suggest that non-suspension-feeding fish species may ingest small suspended particles routinely, with energetic and ecotoxicological implications that deserve further study.


2021 ◽  
Vol 266 ◽  
pp. 112695
Author(s):  
Lin Qi ◽  
Yao Yao ◽  
David E. English ◽  
Ronghua Ma ◽  
John Luft ◽  
...  

2005 ◽  
Vol 15 (5) ◽  
pp. 467-479 ◽  
Author(s):  
Patrick De Clercq ◽  
Yves Arijs ◽  
Thomas Van Meir ◽  
Gilbert Van Stappen ◽  
Patrick Sorgeloos ◽  
...  

1991 ◽  
Vol 39 (11) ◽  
pp. 1455-1460 ◽  
Author(s):  
D Y Sun ◽  
J Z Guo ◽  
H A Hartmann ◽  
H Uno ◽  
L E Hokin

Developing brine shrimp are a good experimental model for study of gene expression during development. Development is initiated on suspension of brine shrimp cysts in seawater. Only 48 hr are required for progression from cyst to the larval stage. We have localize the alpha- and beta-subunits in different cells by immunostaining as development progresses. Both alpha- and beta-subunits are first detected in epidermal cells in the trunk region at the emergence 2 stage (16-hr incubation). At the nauplius 1 stage (24 hr) the enzyme appears in the brain and epidermal regions, as well as in mesenchymal cells, with weaker staining in the salt gland. After further development (nauplius 2 stage, 36 hr) stronger staining appears in the salt gland and in the epidermal region. At the nauplius 3 stage (48 hr) the enzyme appears in the midgut mucosa. Co-localization of the alpha- and beta-subunits appears in all positive cells during development. In the epidermal and salt gland cells the enzyme is mainly localized on the basolateral membrane. The basolateral localization of the Na,K-ATPase in epidermal and salt gland cells suggests that Na+ is actively transported into the epidermal and salt gland cells and passively diffuses out from the apical region.


2020 ◽  
Author(s):  
Tao Ye ◽  
Gerald H. Pollack

AbstractHydration plays a particularly important role in health maintenance and general well-being. A wide assortment of drinking waters are currently available on the market. However, their ability to hydrate may vary. For studying hydration, a useful organism may be the cysts of brine shrimp. Those cysts may remain dehydrated and functionless for years, but regain function once hydrated. In this study, we first determined the optimal factors for assessing hydration in the brine-shrimp model, including aeration method and flow rate, salinity, and temperature. Various kinds of water, including tap water, bottled water, and water containing health-promoting agents, were tested by using this new method to evaluate their ability to hydrate. Tap water showed weak hydration, while some bottled waters (e.g., Kirkland Signature Purified Water) hydrated more effectively. Mineral water, such as Fiji water, was found to be a desirable option to maintain adequate and lasting hydration.Graphic abstract


1975 ◽  
Vol 23 (1) ◽  
pp. 80-83 ◽  
Author(s):  
C W Smith ◽  
S M Siegel

The rate of penetration of the simpler alcohols into brine shrimp cysts and cucumber seeds was studied. In solutions below 70% the rate of penetration is related to lipid solvent capacity of the alcohol. In concentrations above 70%, particularly in absolute alcohols, methanol penetrates brine shrimp rapidly and ethanol penetrates slowly. All the other alcohols tested did not pepetrate the dormant structures. Ethionine and deuteroxy-methanol did not affect the rate of penetration of methanol. It is suggested that in dehydrated membranes the lipid moiety is protected by a continuous sheet of protein. Methanol, which is fairly similar to water, is probably able to penetrate the membrane by initiating a conformation change in the protein, exposing the lipid which subsequently dissolves in the methanol thus destroying the membrane.


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