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There have been two signicant and related events this April. First, Vice Chancellor Michele Masucci visited campus on the 26th. She spent most of the day with us and was incredibly impressed with everyone she met and the facilies she visited. She le with the impression that we were doing important work and had substanal pride in what we do. Her general view was that we represented an environmental think tank providing innovaons in our science that drives the state’s ability to manage our environment forward. I want to thank all of you who parcipated for making me to visit with the Vice Chancellor.The very next day, Chancellor Perman announced his decision to endorse a search for a President to succeed Peter Goodwin, who will be stepping down from his posion on September 23rd. The Chancellor’s decision is a strong vote of condence in the importance of the work we do to the state, to the region and to the naon. It was not a foregone conclusion. There were serious discussions over whether UMCES would serve the state beer were we to be combined in some fashion with other elements in the University System. But, the guidance from numerous stakeholders within USM, the state and the region was that UMCES beer served the state as an independent instuon, maintaining our status. This outcome is, I believe, in our best interests and reects the long term commitment UMCES has had to conducng the environmental intelligence needed to support the state. This wasn’t the result of short term lobbying during a delicate me – it was the result of consistent, passionate engagement by our researchers and sta over many years.The Chancellor also announced that Bill Dennison, currently the Vice President for Science Applicaon will lead UMCES as the Acng President while we search for a permanent replacement. I know Bill will take his role seriously – there will not be much “acng” about his approach to driving change and placing us in the best posion to be aracve to potenal candidates for President. I know you will do all you can to make Bill’s tenure a success.CHESAPEAKE BIOLOGICAL LABORATORY | SOLOMONS, MDAPRIL 2023ISSUE 80Lab Lines1IN THIS ISSUE:DIRECTOR’S VIEW24SAFETY CORNER DIRECTOR'S NOTE/ PUBLICATIONS615IN CASE YOU MISSED IT

In Case You Missed It2Ma Stefenak received the Washington Biologists' Field Club Research Award this cycle, which will be used to analyze sh and benthic invertebrate samples for bulk isotope composion for my dis-sertaon. Lora Harris will aend the Conference on Island Sustainability in Guam in mid-April as a part of her work with the SEAS Islands Alliance. The conference also oers me for a SEAS Steering Commit-tee meeng where we are exploring the future of the Alliance.As part of the NSF funded Chesapeake Alkalinity project (nicknamed CHALK), the Woodland and Harris labs will be leading a cruise aboard the R/V Rachel Carson in April to explore macrobioc controls on alkalinity in the Potomac. This is coupled with work in the York tributary and involves leadership from Penn State and collaborators from St. Mary's College, WHOI, VIMS, and the USGS. This is the rst of 8 planned eld expedions across the three year project.Lisa Wainger 's PhD student, Chris Hayes sucessfully defended his dissertaon, "Expanding the Fish -eries Management Tackle Box: A Mulple-Model Approach to Support Beer Decisions" on April 10th. Kohma Arai and Dave Secor gave an oral presentaon at the 36th Annual Meeng of the Tidewater Chapter of the American Fisheries Society. Arai K, Best JE, Craig CA, Secor DH. “To stay or go: par-al migraon in Hudson River striped bass.”Tom Miller gave the keynote address "Four lessons and a nal thought" at the 36th Annual Meet -ing of the Tidewater Chapter of the American Fisheries Society where Kohma Arai was awarded 3rd place for oral presentaon.

In Case You Missed It• Fisheries Resource Monitoring (FRM)• Recreaonal shery: We have contracted Capt. Dan Stauer of Fin Chaser Charters for monthly cruises between May and October. Capt. Stauer is no stranger to CBL science, hav-ing captained research cruises of Dr. Miller and Reed Brodnick from 2014-2016 and Dr. Secor from 2016-2019.• Commercial shery: We have contracted Seaborn Seafoods, Inc (stop by if you’re ever in Ocean City!) for monthly cruises between March and November. Seaborn carries three ves-sels: F/V Seaborn, a long-liner, mostly used for oshore shing; F/V Integrity, a smaller vessel alternately used for near-shore pong and oshore long-lining; and the newly-acquired and refurbished F/V Delphinus• Real me whale monitoring• The near real-me whale buoy (RTWB) o the coast of Ocean City, MD detects crically endangered North Atlanc right whale (NARW) sounds when they produce up-calls at 200Hz (image below). 3• Acousc and visual detecons of North Atlanc right whales trigger a voluntary slow zone for mariners (10 knots or less). The RTWB detecons of right whales resulted in a total of 116 days of Slow Zones east of Ocean City, MD • Marine Mammal Monitoring• TailWinds newest team member is Caroline Tribble.

In Case You Missed It Cont.4Please join us in welcoming TailWinds' newest team member, Caroline Tribble, who as an FRA at CBL will be serving as a dolphin analyst. Caroline's did her Master’s work, “Enhancing Interpretaon of Cetacean Acousc Monitoring: Invesgang Factors that Inuence Vocaliza-on Paerns of Common Bolenose Dolphins in an Ur-banized Estuary, Charleston Harbor, South Carolina, USA”, at the Grice Marine Laboratory of College of Charleston. During her me there, she worked with Dr. Eric Mone, and gained signicant experience in passive acouscs as well as visual photo-idencaon surveys of dolphins in-habing estuarine watersheds throughout SC (May River, Chechessee River and Creek, Colleton River, Okae River, and Charleston Harbor). In addion, she assisted as a volunteer with the South Carolina Department of Natural Resources on inshore shery surveys and with a local non-prot organizaon, the Lowcountry Ma-rine Mammal Network, on marine educaon outreach and marine mammal stranding response.Caroline is in Swi House. Her work will emphasize dolphin and porpoise bioacouscs, algorithm development, and analysis of hundreds of terabytes of moored hydrophone data. For more infor-maon on TailWinds please visit hps://tailwinds.umces.edu/The Scienc and Technical Advisory Commiee (STAC) hosted a successful workshop between March 21-23, 2023, at GMU’s Potomac Science Center in Woodbridge, VA, to bring together a diverse cross-secon of experts and stakeholders in the eld of stream restoraon to review and disll lessons learned from past projects and improve future restoraon outcomes. Solange Filo-so parcipated in the workshop as a member of the Steering Commiee, panelist and facilitator.More informaon about the workshop can be found at this link.Carys Mitchelmore was part of an Internaonal working group focussed on updang methods for use in oil spill research, one of the many papers from this group has just been published in aquac toxicology and can be downloaded for free (for the next 50 days) using the following link; hps://authors.elsevier.com/c/1gtM9,3oDQuOLy.Ryan Woodland and Lora Harris join an interdisciplinary team of researchers across six instuons who were awarded a $3.5 million grant from the Naonal Science Foundaon to invesgate the role that clams, salt marshes and seagrasses—also known as macrobiota—play in carbon cycling in estuaries. The research will be carried out through a coordinated program of eld measure-ments, laboratory experiments, historical data analysis, and numerical modeling, all focused on the Chesapeake Bay. hps://www.umces.edu/news/research-team-to-explore-the-role-clams-salt-marshes-play-in-carbon-cycling-in-estuaries

Director's Note: Nick Silverson is awarded an NSF GRFPKhare, A., Hughes, H.P., Schijf, J., & Kilbourne, K.H. (2023). Apparently seasonal variaons of the seawater Sr/Ca rao across the Florida Keys Reef Tract. Geochemistry, Geophysics, Geosystems, 24, e2022GC010728 hps://doi.org/10.1029/2022GC010728 Mitch, W.A., Richardson, S.D., Zhang, X. et al. High-molecular-weight by-products of chlorine disin-fecon. Nat Water 1, 336–347 (2023). hps://doi.org/10.1038/s44221-023-00064-x Parkerton, T., Boufadel, M., Nordtug, T., Mitchelmore, C., Colvin, K., Wetzel, D., Barron, M.G., Bragin, G.E., de Jourdan, B. & Loughery, J. (2023). Recommendaons for advancing media prepara-on methods used to assess aquac harazrds of oils and spill response agents. Aquac Toxicology, 259. hps://doi.org/10.1016/j.aquatox.2023.106518.Orsten, P, D. Ralston, van Prooijen, D. Secor, N. Ganju, Z. Chen, S. Fernald, B. Brooks, K. Marcell. 2023. Increased ulizaon of storm surge barriers: A research agenda on estuary impacts. Earth’s Future 11 hps://doi.org/10.1029/2022EF002991EOS Editor Highlight: hps://eos.org/editor-highlights/a-turning-point-for-estuaries-worldw5PublicationsAt the beginning of April, Nick was given the wonderful news that his NSF Graduate Research Fellowship Proposal (GRFP) was recommended for funding. The GRFP is an incredibly compeve naonal program run each year by NSF. Senior undergraduates and early career graduate students are eligible to apply for a GRFP. It is a ve-year fellowship that provides 3 years of support. It is probably no exaggeraon that tens of thousands apply each. Only a few are awarded. Many wor-thy proposals are declined because of severe limits on funding. Several of our faculty have served on review panels for this program and can aest to the compeveness of the program. Our re-cords suggest this is the rst one that anyone at CBL has received.Nick’s proposal, “The impact of climate change on producve Arcc shelf food webs”, provides funds for him to expand his work with Jackie Grebmeier into a genomic study that seeks to under-stand changes in the distribuons of species across the Arcc basin. Many congratulaons Nick!!!!

Safety Corner: Safety Data Sheets (SDS)Safety Data Sheets are a component of the Hazard Communicaon Standard (29 CFR 1910.1200) (Right To Know). It provides ex-tensive informaon about specic substances or mixtures in the workplace. The informaon included in the document are health hazards, physical and environmental hazards, protecve measures (protecve equipment, rst aid, spill cleanup), and safety pre-cauons for handling, storing and transporng the chemical.The SDS contains 16 secons which are shown in the table below. Secons 1-8 provide easy access to essenal informaon that is required for safe handling by workers or for emergency response personnel. Secons 9-11 contain technical and scienc data. Secons 12-15 are non-mandatory and Secon 16 contain informaon about the SDS itself.1 Idencaon2 Hazard Idencaon3 Composion/ Inforamon on Ingredients4 First Aid Measures5 Fire Fighng Measures6 Accidental Release Measures7 Handling and Storage8 Exposure Controls/Personal Protecon9 Physical and Chemical Properes10 Stability and Reacvity11 Toxicological Informaon12 Ecological Informaon (non-mandatory)13 Disposal Consideraons (non-mandatory)14 Transport Informaon (non-mandatory)15 Regulatory Inforamon (non-mandatory)16 Other informaonIt is the responsibility of the employer (PI, supervisor) to provide the SDS for each chemical or mixture in the workplace. These should be placed in a binder in a readily accessible locaon. They should be alphabezed for easy access. If you have a large num-ber of chemicals you can use a tab divider to secon o groups of chemicals (acids, bases, solvents) and alphabeze them within their secon. Whenever you are working with a new chemical, you should read through the SDS so you will be aware of any haz-ards, what personal protecve equipment you should be wearing and what rst aid measures will be needed in case of an accident.In the case of a medical emergency, (once the individual(s) are in the safety shower, eye wash staon or removed to fresh air) the SDS must be retrieved from the binder to nd the rst aid informaon. When emergency personnel arrive, the SDS is given to them to take to the hospital with the injured party. The SDS will provide the informaon the hospital needs to protect themselves and help the individual(s).Safety Data Sheets can be obtained from a variety of sources. The vendor from which the item has been ordered has them on their website and it is usually enclosed with the order. They are also available in your online chemical inventory at Velocity EHS.References:hps://chemicalsafety.com/sds-search/hps://safetyservices.ucdavis.edu/units/ehs/research/safety-data-sheetshps://ehs.research.uiowa.edu/chemical/safety-data-sheets-sdsshps://www.grainger.com/know-how/safety/safety-management/safety-compliance/kh-safety-data-sheet-sds-compliancehps://www.osha.gov/sites/default/les/publicaons/OSHA3514.pdf#:~:text=The%20SDS%20includes%20informaon%20such,-storing%2C%20and%20transporng%20the%20chemical.www.umces.edu/cbl | 410-326-4281P.O. Box 38 | 146 Williams Street | Solomons, MD 20688-00386