Acute sensitivity of the vernal pool fairy shrimp,Branchinecta lynchi(Anostraca; Branchinectidae), and surrogate species to 10 chemicals

2017 ◽  
Vol 36 (3) ◽  
pp. 797-806 ◽  
Author(s):  
Chris D. Ivey ◽  
John M. Besser ◽  
Chris G. Ingersoll ◽  
Ning Wang ◽  
D. Christopher Rogers ◽  
...  
Keyword(s):  
Vernal Pool ◽  
Fairy Shrimp ◽  
Surrogate Species ◽  
Branchinecta Lynchi

Eight Novel Microsatellite Loci Developed from Vernal Pool Fairy Shrimp

2013 ◽  
Vol 4 (1) ◽  
pp. 134-138 ◽  
Author(s):  
Kristy Deiner ◽  
Joshua M. Hull ◽  
Bernie May
Keyword(s):  
Genetic Diversity ◽  
Population Structure ◽  
Microsatellite Loci ◽  
Vernal Pool ◽  
Fairy Shrimp ◽  
Genomic Libraries ◽  
Primer Sets ◽  
Branchinecta Lynchi

Abstract We developed primer sets for eight di-, tri-, and tetranucleotide microsatellite loci for the threatened vernal pool fairy shrimp Branchinecta lynchi from CA, CAA, ATG, CAGA, and TAGA enriched genomic libraries. We tested primers in 74 individuals of B. lynchi from California, as well as 19 individuals from six other Branchinecta species: B. coloradensis, B. constricta, B. dissimilis, B. lindahli, B. mesovalensis, and B. oriena. The eight loci showed sufficient variability for investigations of B. lynchi evolution, population structure, and genetic diversity and may provide a new tool for assisting in delineation of management areas.

scholarly journals Range-wide phylogeographic structure of the vernal pool fairy shrimp (Branchinecta lynchi)

PLoS ONE ◽  
2017 ◽  
Vol 12 (5) ◽  
pp. e0176266 ◽  
Author(s):  
Kristy Deiner ◽  
Joshua M. Hull ◽  
Bernie May
Keyword(s):  
Vernal Pool ◽  
Phylogeographic Structure ◽  
Fairy Shrimp ◽  
Branchinecta Lynchi

scholarly journals Environmental DNA sampling provides new management strategies for vernal pool branchiopods in California

PLoS ONE ◽  
2021 ◽  
Vol 16 (4) ◽  
pp. e0243338
Author(s):  
Shannon Rose C. Kieran ◽  
Joshua M. Hull ◽  
Amanda J. Finger
Keyword(s):  
Management Strategies ◽  
Environmental Dna ◽  
Vernal Pool ◽  
Modern Method ◽  
Conservation Strategies ◽  
Fairy Shrimp ◽  
Native Plant ◽  
Freshwater Organisms ◽  
Animal Diversity ◽  
Sampling Protocols

California’s vernal pools are declining ecosystems that support valuable native plant and animal diversity. Vernal pool branchiopods are particularly at risk from vernal pool habitat loss and conservation efforts have targeted their long-term protection through the establishment of preserves and conservation banks. These conservation strategies require repeated, perpetual monitoring of preserved habitat, which is currently carried out through dip-net surveys and visual identification of specimens. Dip-netting may be destructive and frequently requires some sacrifice of protected species. Environmental DNA offers a new, modern method to monitor many protected freshwater organisms. We designed qPCR-based species-specific assays for four of California’s vernal pool branchiopods: The Vernal Pool Fairy Shrimp Branchinecta lynchi (BRLY), the Midvalley Fairy Shrimp Branchinecta mesovallensis (BRME), and the Conservancy Fairy Shrimp Branchinecta conservatio (BRCO), and the Vernal Pool Tadpole Shrimp Lepidurus packardi (LEPA). We tested these assays using eDNA sampling protocols alongside traditional dip-net surveys to assess their viability as an alternative method to monitor vernal pool branchiopods. Based on occupancy modeling, each of our assays achieved a 95% or higher detection rate when using optimized sampling protocols.

scholarly journals Environmental DNA sampling provides new management strategies for vernal pool branchiopods in California

2020 ◽  
Author(s):  
Shannon Rose Kieran ◽  
Joshua Hull ◽  
Amanda Finger
Keyword(s):  
Management Strategies ◽  
Environmental Dna ◽  
Vernal Pool ◽  
Modern Method ◽  
Conservation Strategies ◽  
Fairy Shrimp ◽  
Native Plant ◽  
Freshwater Organisms ◽  
Animal Diversity ◽  
Sampling Protocols

ABSTRACTCalifornia’s vernal pools are declining ecosystems that support valuable native plant and animal diversity. Vernal pool branchiopods are particularly at risk from vernal pool habitat loss and conservation efforts have targeted their long-term protection through the establishment of preserves and conservation banks. These conservation strategies require repeated, perpetual monitoring of preserved habitat, which is currently carried out through dip-net surveys and visual identification of specimens. Dip-netting may be destructive and frequently requires some sacrifice of protected species. Environmental DNA offers a new, modern method to monitor many protected freshwater organisms. We designed qPCR-based species-specific assays for four of California’s vernal pool branchiopods: The Vernal Pool Fairy Shrimp Branchinecta lynchi (BRLY), the Midvalley Fairy Shrimp Branchinecta mesovallensis (BRME), and the Conservancy Fairy Shrimp Branchinecta conservatio (BRCO), and the Vernal Pool Tadpole Shrimp Lepidurus packardi (LEPA). We tested these assays using eDNA sampling protocols alongside traditional dip-net surveys to assess their viability as an alternative method to monitor vernal pool branchiopods. Based on occupancy modeling, each of our assays achieved a 95% or higher detection rate when using optimized sampling protocols.

How well do proxy species models inform conservation of surrogate species?

2021 ◽  
Author(s):  
Zachary G. Loman ◽  
William V. Deluca ◽  
Daniel J. Harrison ◽  
Cynthia S. Loftin ◽  
W. Scott Schwenk ◽  
...  
Keyword(s):  
Surrogate Species

scholarly journals Biological Impact of Photoperiod on Fairy Shrimp (Branchinecta orientalis): Life History and Biochemical Composition

Biology ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 695
Author(s):  
Sara Farhadi ◽  
Behrooz Atashbar Kangarloei ◽  
Ahmad Imani ◽  
Kourosh Sarvi Moghanlou
Keyword(s):  
Growth Rate ◽  
Life History ◽  
Protein Content ◽  
Biochemical Composition ◽  
Digestive Enzyme ◽  
Total Body Length ◽  
Constant Darkness ◽  
Fairy Shrimp ◽  
Daily Growth ◽  
Isoleucine Leucine

B. orientalis, fairy shrimp, is often among the most conspicuous invertebrates inhabiting temporary aquatic habitats with a typical variation in environmental conditions. Its life history characteristics and biochemical composition were studied under four different photoperiodic regimes (24L:0D, 0L:24D, 16L:8D, and 12L:12D). The significantly highest cumulative and initial hatching rates (48 h) were obtained at 24L:0D (p < 0.05). Cultivating the larvae under different photoperiods did not significantly affect specific growth rate (SGR) (p > 0.05). However, higher final total body length and daily growth rate were recorded under constant darkness. Higher lipid content was found at 24L:0D to the extent that it was more than two times higher than that at 16L:8D and 12L:12D (p < 0.05). There was also a remarkable increase in body crude protein content at 24L:0D (p < 0.05). Body fatty-acid profiles of the fairy shrimps were also affected by culture condition (p < 0.05). Extension of lighting period resulted in a subtle increase in body contents of arginine, lysine, histidine, isoleucine, leucine, valine, methionine, and phenylalanine, especially in the group kept under a 16L:8D regime. The highest and lowest digestive enzyme activity was observed at 0L:24D and 24L:0D, respectively (p < 0.05). In contrast, the highest and lowest soluble protein content was recorded at 24L:0D and 0L:24D, respectively (p < 0.05). Similarly, antioxidant status was significantly higher at 0L:24D (p < 0.05). In conclusion, a 16L:8D light–dark cycle might be an optimal condition in terms of growth performance and physio-biochemical characteristics. These findings could be helpful in optimizing the rearing conditions for upscaling B. orientalis production.

Distinctive genetic signatures of two fairy shrimp species with overlapping ranges in Iberian temporary ponds

2021 ◽  
Author(s):  
Regina Lopes da Cunha ◽  
Jordi Sala ◽  
Margarida Machado ◽  
Dani Boix ◽  
Celine Madeira ◽  
...  
Keyword(s):  
Temporary Ponds ◽  
Fairy Shrimp ◽  
Shrimp Species ◽  
Genetic Signatures
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