May 19
In Poland, some water systems use freshwater mussels as living water alarms. When the water stays clean, the mussels keep their shells open. If the water quality changes, they close their shells, and sensors can alert the system.
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In Poland, some water systems use freshwater mussels as living water alarms. When the water stays clean, the mussels keep their shells open. If the water quality changes, they close their shells, and sensors can alert the system.
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Wild Pearls
The golden-striped salamander is one of the species most vulnerable to water contamination, which is why its presence is used as a bioindicator. As vulnerable as it is elusive, this species breeds in caves and rock cracks, where pure water runs out of the rock bed. One single female can lay more that 500 eggs in every reproductive season, lining the walls with living pearls.
Photograph: Javier Lobon-Rovira
The British Ecological Society Annual Capturing Ecology Competition
Seeing a blue heron in the wild is like seeing God.
J'ai récemment appris grâce à @xa_jac que les lichens sont des organismes symbiotiques [ champignon + algue ] ET qu'il peuvent être utilisés pour évaluer la pollution atmosphérique. La qualité de l'air influence leur forme et leur couleur. Reste à apprendre à les reconnaître et à les lire ! . . . #biosurveillance #bioindicator #peyriacdemer #lichen #lichens #algae #champignons #mycology #naturelovers #biology #biologie #symbiotic #occitanie #symbiose #symbiotique (à Peyriac-de-Mer)
This study aimed to examine the mercury (Hg), lead (Pb), and nitrate (NO3) accumulation on Macrobrachium rosenbergii (shrimps) of Iponan River. The samples were analyzed using Cold Vapor Atomic Absorption Spectroscopy (CVAAS) for the heavy metals (Hg & Pb) and Bruccine Colorometric Method (BCM) for nitrate. One-way Analysis of Variance (ANOVA) and Standard Deviation analysis were used to test the significant difference in the concentration of the analytes on shrimps between sampling periods. Statistically, based on the results, there is significant difference on the concentration of lead, mercury and nitrates among sampling periods. M. rosenbergii contained high measured values of nitrate (NO3) analyte within two (2) sampling periods with concentrations of 120>32.8 ppm and 842>32.8 ppm respectively which exceeded the EPA standards. Lead concentration exceeds the BFAR standard (1.36>0.5) ppm during the second sampling while Hg content is present within specified standards. Results suggest that M. rosenbergii is a bioaccumulator of mercury (Hg), lead (Pb), and nitrates (NO3) and can be used to monitor pollution level in a river. This result could be used as basis for strengthening policies regarding water quality management and monitoring of Iponan River.
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Boulder Field at Dixon School Rd. #lichenology #macrophotography #canon6dmarkii #sigma105mm #bioindicator #indicatorspecies #lichen (at Cleveland County, North Carolina) https://www.instagram.com/p/CPYzO7BlSoF/?utm_medium=tumblr
#folioselichen #symbiosis #indicatorspeciesart #bioindicator #lichensofinstagram #sigma105mm #macrophotography #canon6dmarkii #canonphotography (at Cleveland County, North Carolina) https://www.instagram.com/p/COmPehzF28_/?igshid=1m8tert2sgux7
Discovery #macrophotography #lichen #bioindicator #sigma105mm #indicatorspecies #folioselichen #lichensofinstagram (at Cleveland County, North Carolina) https://www.instagram.com/p/COhAsXgFUY_/?igshid=b82bjyyl9h0z