Laura continues her field work on the link between Hg contamination, salinity, and parasites in NC estuaries
After a delay (and preparations to do field work safely during the pandemic), Laura is off to a great start with her research, getting in 4 sampling events so far in spring and summer, with 4 more to go in fall and winter. Laura's most recent field adventure (with help from Chris, Destiny, and myself) in the Pamlico and Neuse estuaries (9/26-9/27) happened to be on a beautiful fall-like weekend. We even observed (from a safe distance!) an alligator at one of our field sites (Swan Quarter)! Below are a few pictures from the day...
Congratulations to former undergraduate student, Deja Reeves, for being selected for a Mote Marine Lab Benthic Ecology internship!
Very exciting news! Deja was selected as a winter intern for Mote Marine Lab’s Benthic Ecology Program. In her upcoming work in the lab, she will help restore benthic organisms, like scallops, and conduct seagrass and reef mapping. The program description for the internship is here:
We are very proud!! Congratulations, Deja!
Congratulations to Chris on leading the efforts of a fantastic collaboration between the Blakeslee and Gittman labs... bringing together restoration and parasites!
If you build it, they will come: Restoration positively influences free-living and parasite diversity in a restored tidal marsh
C.S.Moore, R.K.Gittman, B.J.Puckett, E.H.Wellman, A.M.H.Blakeslee
Ecological monitoring studies have shown that surrogate species can provide good predictive power for the community diversity of other taxa. In our study, we sampled for resident and transient fauna in several newly created oyster reefs. We also sampled for common multi-host parasites in these organisms, as parasite abundance can act as a surrogate for trophic complexity in structured habitat. The restoration consisted of three treatments: control plots (no restoration), stacked bags of oyster shell, and reefs constructed from a novel design made of concrete and burlap. We also included three previously restored loose-shell reefs for comparison. Over 16 months, we quantified parasite diversity in mudsnails, crustaceans, and benthic fishes, as well as crustacean and fish free-living diversity. Taxa richness increased post-restoration for most free-living and parasite groups, regardless of restoration design, and communities shifted toward reef-resident species assemblages. Shell bags showed the greatest positive change in richness one-year post-restoration—at 2× that of control plots on average. The relative abundance of trematodes also increased with time, particularly those using fish as final hosts, and nematodes, cestodes, and entoniscid isopods were also more abundant post-restoration. Habitat complexity and abiotic factors (e.g., temperature and dissolved oxygen) were also positively correlated with shifts in host and parasite diversity. Our study demonstrates that free-living and parasite responses to restoration can occur rapidly and are sensitive to restoration design and site-specific environmental characteristics. Parasites are thus a promising tool for quantifying biodiversity and ecosystem health, particularly in systems subject to frequent monitoring.
On September 17th, I gave my department tenure talk (virtually). Definitely a huge relief to get through it! Now crossing fingers for a successful tenure review!!
The image below is a word cloud I made from the titles of my papers -- it was a fun way to show my areas of research. :)
This past August, my collaborators and I managed to get some field work in within the estuaries of the eastern shore of Virginia. It was very hot, muddy, but also very beautiful. And I got to see the ever important and super cool trematode parasites of Tritia obsoleta. We visited several sites and for the second year in a row collected samples of the invasive red alga Agarophyton vermiculophylla to look for associated free-living and parasite communities.
This has indeed been a weird year and it was very unfortunate that my student Kyle was unable to get hooded in graduation or have a live audience for his MS thesis defense. But he soldiered on and successfully defended his thesis virtually on June 23, 2020. His thesis is titled: "CRABS & ‘CROBES: THE TRIPARTITE RELATIONSHIP OF A HOST, PARASITE, AND THEIR RESPECTIVE MICROBIOMES". Congratulations, Kyle!!
Congratulations to Tim Lee on receiving two grad scholarships: Crustacean Society and North Carolina Wildlife Federation!
Tim had great success this year in securing two grad scholarships for his PhD research in the Blakeslee lab. The first was for the Crustacean Society for his work on barcoding amphipods and understanding amphipod diversity associated with the invasive alga Agarophyton vermiculophylla. The second was from the North Carolina Wildlife Federation for his work along North Carolina coasts understanding the effect of the invasive alga on coastal communities. Here is a blurb from Tim about those efforts:
"I am comparing and contrasting macroinvertebrate diversity between a non-native and native foundational species on the estuarine coasts of North Carolina. Currently these estuaries are slowly transforming as a non-native seaweed is expanding and potentially interfering with native seagrasses. With the support from NCWF scholarship, I hope to determine if the native or non-native foundational species can accommodate higher richness and diversity of macroinvertebrates."
2020 has been an absolutely challenging year, and as a result, I have been remiss in sharing important and exciting news that has occurred in the lab over the past few months... today I finally put together posts to catch up on all that! :)
Virtual Research and Creativity Achievement Week (RCAW) at ECU featuring lab members Tim Lee and Jonathan Russo
Even though ECU campus is currently closed for students and events due to COVID-19, RCAW went virtual and two students in the lab presented their work: PhD student Tim Lee gave an oral presentation and undergrad student Jonathan Russo submitted a poster. Great job!!
Congratulations to PhD student, Christopher Moore, for being awarded the student Sigma Xi Helm's award. The virtual award ceremony took place on March 31st. During the ceremony, Chris described the paper that he had submitted for the award (our PeerJ naked goby population genetics study: https://peerj.com/articles/5380/)