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1. Potential of recovered proteins from invasive green crabs ( Carcinus maenas ) as a functional food ingredient

   https://doi.org/10.1002/jsfa.9364  

   Kang, Bouhee ; Myracle, Angela D. ; Skonberg, Denise I. ( October 2018 , Journal of the Science of Food and Agriculture)

   Invasive green crabs contain high‐quality proteins that have potential as functional ingredients in formulated foods. This study evaluated the functional properties and compositional characteristics of green crab proteins recovered by isoelectric solubilization/precipitation (ISP).

   Mechanically separated green crab mince (control) was solubilized at pH 2 (PP2) and pH 10 (PP10), then proteins were precipitated at pH 5.5 and subsequently dried. Yield of recovered protein powder was approximately 1.5 times higher for PP2 than for PP10. Compared with the control (230 g kg⁻¹), ash content was reduced in PP2 (54 g kg⁻¹) and PP10 (23 g kg⁻¹) samples. PP2 contained predominantly large‐molecular‐weight proteins, while small‐molecular‐weight proteins were distributed in PP10. With regard to functional properties, at pH 7 and 8, solubility of PP10 was significantly higher than that of PP2. At pH 7.5, PP10 exhibited significantly higher emulsifying activity (1482 m²g⁻¹) than PP2 (858 m²g⁻¹) and the control (958 m²g⁻¹). PP2 showed statistically higher gelation activity and had higherL* value than PP10 and the control.

   The results indicate that recovered green crab proteins have functional properties potentially useful for formulated foods, and that these functional properties can be modified by the solubilization pH during the recovery process. © 2018 Society of Chemical Industry

    

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2. From eDNA to citizen science: emerging tools for the early detection of invasive species

   https://doi.org/10.1002/fee.2162  

   Larson, Eric R ; Graham, Brittney M ; Achury, Rafael ; Coon, Jaime J ; Daniels, Melissa K ; Gambrell, Daniel K ; Jonasen, Kacie L ; King, Gregory D ; LaRacuente, Nicholas ; Perrin‐Stowe, Tolulope IN ; et al ( May 2020 , Frontiers in Ecology and the Environment)
3. Integrating invasive species risk assessment into environmental DNA metabarcoding reference libraries

   https://doi.org/10.1002/eap.2730  

   Mahon, Andrew R. ; Grey, Erin K. ; Jerde, Christopher L. ( January 2023 , Ecological Applications)
4. Fine‐scale environmental DNA sampling reveals climate‐mediated interactions between native and invasive trout species

   https://doi.org/10.1002/ecs2.2500  

   Wilcox, Taylor M. ; Young, Michael K. ; McKelvey, Kevin S. ; Isaak, Daniel J. ; Horan, Dona L. ; Schwartz, Michael K. ( November 2018 , Ecosphere)
5. Calcium concentrations in the lower Columbia River, USA , are generally sufficient to support invasive bivalve spread

   https://doi.org/10.1002/rra.3804  

   Bollens, Stephen M. ; Harrison, John A. ; Kramer, Marc G. ; Rollwagen‐Bollens, Gretchen ; Counihan, Timothy D. ; Robb‐Chavez, Salvador B. ; Nolan, Sean T. ( May 2021 , River Research and Applications)

   Dissolved calcium concentration [Ca²⁺] is thought to be a major factor limiting the establishment and thus the spread of invasive bivalves such as zebra (Dreissena polymorpha) and quagga (Dreissena bugensis) mussels. We measured [Ca²⁺] in 168 water samples collected along ~100 river‐km of the lower Columbia River, USA, between June 2018 and March 2020. We found [Ca²⁺] to range from 13 to 18 mg L⁻¹during summer/fall and 5 to 22 mg L⁻¹during the winter/spring. Previous research indicates that [Ca²⁺] < 12 mg L⁻¹are likely to limit the establishment and spread of invasive bivalves. Thus, our results indicate that there is sufficient Ca²⁺in most locations in the lower Columbia River to support the establishment of invasive dreissenid mussels, which could join the already widespread and abundant Asian clam (Corbicula fluminea) as the newest invader to an already heavily invaded Columbia River ecosystem. These new data provide important measurements from a heretofore undersampled region of the Columbia River and have important implications for the spread of invasive bivalves and, by extension, the conservation and management of native species and ecosystems.

    

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