Blog

Loglet Lab 5 in development

Loglet Lab 4 is experiencing some difficulties, so users may receive errors on the more complex analysis. We apologize for the inconvenience and are working to alleviate the problems. Meanwhile, with the addition of Albert Strusberg to our team (David Burg, Jason Yung, Perrin Meyer), Loglet Lab 5 is under intensive development and should be available before the end of 2022. Stay tuned.

eDNA work in progress

We post a Schematic of an eDNA metabarcoding protocol for marine fish.

We recently showed that current laboratory protocols optimize sensitivity and reproducibility, especially for more abundant fish populations (ICES J Mar Sci 2022). eDNA metabarcoding is generally considered a qualitative tool for relative abundance. We hope to help develop eDNA metabarcoding as a quantitative tool for absolute abundance (link to pdf work-in-progress).

eDNA Detection of Salamanders

PHE student Samara Davis will present her work with Mark Stoeckle on eDNA detection of threatened salamanders at Northeast Partners in Amphibian and Reptile Conservation Annual Meeting https://northeastparc.org, to be held in West Virginia in August.

eDNA degradation; 2nd National Workshop

PHE’s guest investigator David Thaler offers some stimulating ideas in a memo about ways of understanding and learning from degradation of aquatic eDNA. The title: How long has each particular species’ eDNA been outside the organism from which it came? Some thoughts on the possibility to obtain more information from eDNA analysis of water samples

Meanwhile, Jesse Ausubel and Mark Stoeckle are involved in the program for the 2nd US National Workshop on eDNA, 12-15 September in Southern California. PHE hosted the 1st US national meeting in 2018.

PHE eDNA student project a finalist in 2022 Genius Olympiad

Samara Davis’s salamander eDNA project is a finalist in 2022 Genius Olympiad.  Genius Olympiad is an international high school project competition about environmental issues founded and organized by Terra Science and Education and hosted by the Rochester Institute of Technology. The Olympiad will host projects in five general disciplines with an environmental focus.  

Call for Global Library of Underwater Biological Sounds

A paper by the Working Group on Acoustic Measurement of Ocean Biodiversity Hotspots of the International Quiet Ocean Experiment (IQOE) published “Sounding the Call for a Global Library of Biological Underwater Sounds” in the journal “Frontiers in Ecology and Evolution.”   Congratulations to Miles Parsons, Aran Mooney, Lucia di Iorio and company on a landmark contribution, which should become a major acoustic goal of the UN Decade of Ocean Science for Sustainable Development.

Terry Collins’ press release contains a superb description of the paper as well as snippets of sound from a toadfish, piranha, gurnard fish, sea urchin, crab, and whale and information about 14 sound libraries.

The Guardian, United Kingdom Fish love songs and fighting talk: underwater sound library to reveal language of the deep

El Mundo, Madrid, La ‘biblioteca’ de los sonidos submarinos: los científicos graban el coro natural de los habitantes del océano

Popular Science, Why ocean researchers want to create a global library of undersea sounds