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In October, Dr. Lisa Kerr joined the 91爆料鈥檚 School of Marine Science as Associate Professor of Fisheries Science. In her new role, Dr. Kerr will lead research that informs sustainable management of marine fisheries and ecosystems. Her current work is focused on integrating climate information into fishery stock assessment and management to support climate resilience of fisheries and ecosystems. She will be teaching undergraduate and graduate courses in fisheries science and mentoring students.听

After leading the Quantitative Fisheries Research Lab at the Gulf of Maine Research Institute for over a decade, Dr. Kerr now joins the 91爆料 as one of two faculty members based at the Gulf of Maine Research Institute in Portland, Maine. These positions are part of an ongoing partnership between the two institutions designed to advance scientific understanding of the effects of climate change and ecosystem shifts on fisheries in the Gulf of Maine.

鈥淚 am excited to contribute to the training of fisheries scientists at the 91爆料 and connect students with the extensive expertise at 91爆料, GMRI, and the Maine Department of Natural Resources,鈥� said Dr. Kerr. 鈥淭here is a great potential to draw on the strengths of each organization and provide students with hands-on training and understanding that will benefit our state鈥檚 fisheries resources and prepare 91爆料 students to assume the next generation of fisheries science and management roles.鈥�

As a part of the 91爆料鈥檚 sea grant mission, Kerr will also liaise strongly with blue economy stakeholders across the state and abroad.听听

鈥淢aine has a robust network of organizations dedicated to promoting the resilience of marine ecosystems and the communities that depend on them. Collaborations with these groups enhance our ability to fulfill our land-grant mission. We look forward to welcoming Dr. Kerr to 91爆料 and strengthening our partnership with GMRI,鈥� says Heather Hamlin, director of the School of Marine Sciences at 91爆料.

Kerr earned her doctorate from the University of Maryland, her master鈥檚 degree from Moss Landing Marine Laboratories-California State University, and her bachelor鈥檚 degree from Tufts University.

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Viscous Flow Environments in Oceans and Inland Waters

Author(s):Peter A. Jumars

Contributors:Peter Jumars;

Book Description

This text targets advanced undergraduate students, graduate students and practicing aquatic scientists who seek to understand effects of flow on aquatic processes but have had little prior exposure to fluid dynamics. It provides a self-contained introduction to flows at small scales within oceans and fresh waters in ubiquitous settings, such as boundary layers and dissipative vortices, wherein viscosity suppresses inertial forces. Diagrams, graphs and equations enable reader calculations of viscous flow effects. Detailed derivations include drag forces, solute fluxes and particle encounter rates. Applications described include the effects of shape and orientation on drag in steady and unsteady flows, nutrient uptake by bacteria and phytoplankton, quorum sensing, particle coagulation and suspension feeding.

Teachers of biological fluid dynamics will find this book to be a rich, student-tested source of examples and applications of low Reynolds number flows. Its coverage of both bounded and unbounded flows carefully specifies the limits of low Reynolds number behaviors as flow velocities increase, and indicates the consequences when those limits are approached and exceeded.

Hardback

ISBN-13:978-1-5275-2136-0

ISBN-10:1-5275-2136-2

Date of Publication:01/02/2019

Pages / Size:184 / A5

Price:拢58.99

Quantity:

Biography

Peter A. Jumars is Professor Emeritus of Oceanography at the School of Marine Sciences and the Darling Marine Center of the 91爆料. He has also worked at the School of Oceanography at the University of Washington and as a program officer with the US Office of Naval Research. He is author of more than 140 journal articles and book chapters and one previous book, Concepts in Biological Oceanography: An Interdisciplinary Primer. His past elective offices include presidency of the Association for the Sciences of Limnology and Oceanography and chairmanship of the Council of Scientific Society Presidents.

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More than 1,200 students showcased nearly 400 research and creative works at the 2019 91爆料 Student Symposium held at the Cross Insurance Center in Bangor on April 10.

The fourth annual symposium provided an opportunity for the public to interact with student researchers and scholars as they viewed posters and exhibits and listened to oral presentations.

The free public event was organized by the Office of the Vice President for Research and Dean of the Graduate School, the Center for Undergraduate Research, Student Government, and the Graduate Student Government as part of Maine Impact Week.

Almost 220 volunteer judges scored projects in nine categories encompassing all fields of study at 91爆料. The top students were awarded at the close of the ceremony. Other special awards sponsored by various research centers also were presented at the event.

Special awards

• Dr. Susan J. Hunter Presidential Research Impact Award:听Hannah Lawrence (graduate), 鈥淩uminating on Images Versus Words: The Impact on Negative Affect,鈥� clinical psychology, advised by Rebecca Schwartz-Mette; Aly East (undergraduate), 鈥淎ll Things Considered: How Recreational Developments Affect Ecological and Social Ecosystem Services,鈥� ecology and environmental sciences, advised by Kate Ruskin
• Provost Innovative and Creative Teaching Award:听Sherry Brown
• Dean of Graduate School Undergraduate Mentor Award:听Brieanne Berry, first place; Rose Deng, second place; Sara McBride, third place
• 91爆料 Alumni Association Award:听Colleen Mayberry
• Dan Sandweiss Graduate Student Advocacy Award:听Elisabeth Kilroy

91爆料 research center awards

• Maine Sea Grant:听Kyle Capistrant-Fossa (graduate), 鈥淯nexpected Reproductive Traits of Grateloupia Turuturu Revealed by its Resistance to Bleach Based Biosecurity Protocols,鈥� advised by Susan Brawley; and Charles Jones (undergraduate), 鈥淏etter Understanding Aquaculture: How Economic Information Impacts Citizen Sentiment,鈥� advised by Caroline Noblet
• Senator George J. Mitchell Center for Sustainability Solutions award听for innovative sustainability research by a graduate student:听Brieanne Berry, 鈥淩euse & Resilience in Maine鈥檚 Rural Communities: Policy Impacts of Second-hand Economies,鈥� advised by Cynthia Isenhour
• Margaret Chase Smith Policy Center award for policy-related research by an undergraduate student:听Nolan Altvater, 鈥淐overing Traditional and Western Scientific Methods to Highlight Penobscot Sovereignty,鈥� advised by Bridie McGreavy
• Advanced Structures and Composites Center:听Anthony Verzoni (graduate), 鈥淥rigami-Inspired Design of Rapidly Deployable Structures,鈥� advised by Masoud Rais-Rohani
• IMRC Center:听Rachel Church, Anna Martin and Arturo Camacho (graduate), 鈥�#youronlinebaggage 鈥� A Socially Engaged, Graduate Art Endeavor,鈥� advised by Susan Smith

Graduate winners

• Allied health:听Kaitlin Robinson, 鈥淓ffect of Simulation in Nursing Education on Senior BSN Students鈥� Self-Confidence Level and Preparedness for Practice,鈥� advised by Patricia Poirier
• Arts:听Rachel Church, Anna Martin and Arturo Camacho, 鈥�#youronlinebaggage 鈥� A Socially Engaged, Graduate Art Endeavor,鈥� advised by Susan Smith
• Biomedical Sciences:听Jeanne DuShane, 鈥淛CPyV-induced activation of the MAPK cascade is required for viral transcription,鈥� advised by Melissa Maginnis
• Education and Human Development:听Naomi Caywood, 鈥淭he Effects of Diverse Aged Enrollment on Community School Literacy Rates in Rural Zambia: Case Study on Impact Network International Schools, Eastern Province Zambia,鈥� advised by Kristin Vekasi
• Engineering and Information Sciences:听Thomas Leighton, 鈥淒evelopment of an Electrical Interface for Lateral Field Excited Sensor,鈥� advised by Nuri Emanetoglu
• Interdisciplinary Collaboratives:听Jennifer Smith-Mayo, Rafa Tasnim and Joseph Mohan, 鈥淎 Framework of Past, Present and Future Cultural Responses to Water Stress in Three Distinct Regions,鈥� advised by Jacquelyn Gill
• Natural Sciences:听Kyle Capistrant-Fossa, 鈥淯nexpected Reproductive Traits of Grateloupia Turuturu Revealed by its Resistance to Bleach Based Biosecurity Protocols,鈥� advised by Susan Brawley
• Physical Sciences:听Morton Greenslit, 鈥淪ynthesis and Characterization of Piezoelectric AlN Thin Films Using Plasma-Assisted Electron-Beam Evaporation,鈥� advised by Robert Lad
• Social Sciences:听Melissa Jankowski, 鈥淚nterpersonal and Achievement-Related Stress Moderate the Risk for Suicidality in First-Year College Students,鈥� advised by Cynthia Erdley

Undergraduate winners

• Allied Health:听Tessa Lindsley, Samantha King, Kathleen Thibodeau and Taylor Durepo, 鈥淲hat Strategies can be Implemented to Increase Workplace Satisfaction and Decrease Emotional Exhaustion thus Decrease Nurse Turnover Rates?鈥� advised by Patricia Poirier
• Arts:听Sarah Seitz, 鈥淒ata Queen,鈥� advised by Jon Ippolito
• Biomedical Sciences:听Anna-Maria Dagher, 鈥淓xploring the Dynamic Relationship between Candida Albicans, Pseudomonas Aeruginosa and Fluconazole for Improved Candidiasis Treatment,鈥� advised by Robert Wheeler; and Francesca Armstrong, 鈥淐haracterizing a Deadly Viral Infection in the Brain by Utilizing an Innovative and Unique Approach,鈥� advised by Melissa Maginnis
• Education and Human Development:听Hadley White, 鈥淎ddressing the World Language Teacher Shortage: How Can the Franco-American Centre Support French Programs Under Pressure in Maine?鈥� advised by Susan Pinette
• Engineering and Information Sciences:听Isabelle Grant, Chloe Lilly and Alex Danner, 鈥淔itness-based Optical Diagnostic Patch for the Observation of Cardiovascular Disease-risk Patients,鈥� advised by Karissa Tilbury
• Interdisciplinary Collaboratives:听Nicole McGrath and Daniel Woodhouse, 鈥淓xamining Muscle Contraction and Angular Acceleration to Detect Balance Perturbation,鈥� advised by Vincent Caccese, Babak Hejrati, Marie Hayes and Ali Abedi
• Natural Sciences:听Leala Machesney, 鈥淓ffects of Commercial Nutrient Solutions on Growth of Lemon Basil (Ocimum basilicum var. citriodora 鈥楳rs. Burns鈥�),鈥� advised by Bryan Peterson and Stephanie Burnett
• Physical Sciences:听Gwyneth Roberts, 鈥淨uantifying Tidally Driven Transport in the Jordan River Estuary,鈥� advised by Lauren Ross
• Social Sciences:听Thilee Yost, 鈥淗mong Americans and Mainstream Politics in St. Paul, MN,鈥� advised by Amy Fried

Winners of the听2019 CUGR and Maine Space Grant Consortium summer fellowships听also were announced at the symposium, as were the following 2019鈥�2020 Graduate School fellowships.

Chase Distinguished Research Assistantship

• Catherine Hamley, paleoecology/archaeology, advised by Jacquelyn Gill
• Bouhee Kang, food science and human nutrition, advised by Denise Skonberg
• Alejandro Molina-Moctuzuma, wildlife ecology, advised by Joseph Zydlewski
• Isaac Shepard, ecology and environmental sciences, advised by Hamish Greig
• David Smith, cognitive psychology, advised by Shawn Ell
• Jesse Walters, Earth science, advised by Alicia Cruz-Uribe

Janet Waldron Doctoral Research Fellowship

• Laura Andrews, clinical psychology, advised by Cynthia Erdley and Douglas Nagle
• David Kerschner, higher education, advised by Elizabeth Allan

Susan J. Hunter Teaching Fellowship

• Colin Bosma, clinical psychology, advised by Emily Haigh
• Sara Lowden, anthropology and environmental policy, advised by Lisa Newman and Darren Ranco
• An Nguyen, American history, advised by Elizabeth McKillen
• Michael Wilczek, microbiology, advised by Melissa Maginnis

More about the Graduate School fellowships is听online.

Attendees of the symposium, including students, faculty, staff, judges, sponsors and the general public are invited to take a short survey about the event. Feedback is important to symposium organizers and will be used to improve future events. Enter your email address at the end of the survey for a chance to win a prize. Your email will not be associated with your responses. The survey is听.

The post Undergraduate, graduate students receive awards at 2019 Student Symposium appeared first on School of Marine Sciences.

More than 1,200 students showcased nearly 400 research and creative works at the 2019 91爆料 Student Symposium held at the Cross Insurance Center in Bangor on April 10.

The fourth annual symposium provided an opportunity for the public to interact with student researchers and scholars as they viewed posters and exhibits and listened to oral presentations.

The free public event was organized by the Office of the Vice President for Research and Dean of the Graduate School, the Center for Undergraduate Research, Student Government, and the Graduate Student Government as part of Maine Impact Week.

Almost 220 volunteer judges scored projects in nine categories encompassing all fields of study at 91爆料. The top students were awarded at the close of the ceremony. Other special awards sponsored by various research centers also were presented at the event.

Special awards

• Dr. Susan J. Hunter Presidential Research Impact Award:听Hannah Lawrence (graduate), 鈥淩uminating on Images Versus Words: The Impact on Negative Affect,鈥� clinical psychology, advised by Rebecca Schwartz-Mette; Aly East (undergraduate), 鈥淎ll Things Considered: How Recreational Developments Affect Ecological and Social Ecosystem Services,鈥� ecology and environmental sciences, advised by Kate Ruskin
• Provost Innovative and Creative Teaching Award:听Sherry Brown
• Dean of Graduate School Undergraduate Mentor Award:听Brieanne Berry, first place; Rose Deng, second place; Sara McBride, third place
• 91爆料 Alumni Association Award:听Colleen Mayberry
• Dan Sandweiss Graduate Student Advocacy Award:听Elisabeth Kilroy

91爆料 research center awards

• Maine Sea Grant:听Kyle Capistrant-Fossa (graduate), 鈥淯nexpected Reproductive Traits of Grateloupia Turuturu Revealed by its Resistance to Bleach Based Biosecurity Protocols,鈥� advised by Susan Brawley; and Charles Jones (undergraduate), 鈥淏etter Understanding Aquaculture: How Economic Information Impacts Citizen Sentiment,鈥� advised by Caroline Noblet
• Senator George J. Mitchell Center for Sustainability Solutions award听for innovative sustainability research by a graduate student:听Brieanne Berry, 鈥淩euse & Resilience in Maine鈥檚 Rural Communities: Policy Impacts of Second-hand Economies,鈥� advised by Cynthia Isenhour
• Margaret Chase Smith Policy Center award for policy-related research by an undergraduate student:听Nolan Altvater, 鈥淐overing Traditional and Western Scientific Methods to Highlight Penobscot Sovereignty,鈥� advised by Bridie McGreavy
• Advanced Structures and Composites Center:听Anthony Verzoni (graduate), 鈥淥rigami-Inspired Design of Rapidly Deployable Structures,鈥� advised by Masoud Rais-Rohani
• IMRC Center:听Rachel Church, Anna Martin and Arturo Camacho (graduate), 鈥�#youronlinebaggage 鈥� A Socially Engaged, Graduate Art Endeavor,鈥� advised by Susan Smith

Graduate winners

• Allied health:听Kaitlin Robinson, 鈥淓ffect of Simulation in Nursing Education on Senior BSN Students鈥� Self-Confidence Level and Preparedness for Practice,鈥� advised by Patricia Poirier
• Arts:听Rachel Church, Anna Martin and Arturo Camacho, 鈥�#youronlinebaggage 鈥� A Socially Engaged, Graduate Art Endeavor,鈥� advised by Susan Smith
• Biomedical Sciences:听Jeanne DuShane, 鈥淛CPyV-induced activation of the MAPK cascade is required for viral transcription,鈥� advised by Melissa Maginnis
• Education and Human Development:听Naomi Caywood, 鈥淭he Effects of Diverse Aged Enrollment on Community School Literacy Rates in Rural Zambia: Case Study on Impact Network International Schools, Eastern Province Zambia,鈥� advised by Kristin Vekasi
• Engineering and Information Sciences:听Thomas Leighton, 鈥淒evelopment of an Electrical Interface for Lateral Field Excited Sensor,鈥� advised by Nuri Emanetoglu
• Interdisciplinary Collaboratives:听Jennifer Smith-Mayo, Rafa Tasnim and Joseph Mohan, 鈥淎 Framework of Past, Present and Future Cultural Responses to Water Stress in Three Distinct Regions,鈥� advised by Jacquelyn Gill
• Natural Sciences:听Kyle Capistrant-Fossa, 鈥淯nexpected Reproductive Traits of Grateloupia Turuturu Revealed by its Resistance to Bleach Based Biosecurity Protocols,鈥� advised by Susan Brawley
• Physical Sciences:听Morton Greenslit, 鈥淪ynthesis and Characterization of Piezoelectric AlN Thin Films Using Plasma-Assisted Electron-Beam Evaporation,鈥� advised by Robert Lad
• Social Sciences:听Melissa Jankowski, 鈥淚nterpersonal and Achievement-Related Stress Moderate the Risk for Suicidality in First-Year College Students,鈥� advised by Cynthia Erdley

Undergraduate winners

• Allied Health:听Tessa Lindsley, Samantha King, Kathleen Thibodeau and Taylor Durepo, 鈥淲hat Strategies can be Implemented to Increase Workplace Satisfaction and Decrease Emotional Exhaustion thus Decrease Nurse Turnover Rates?鈥� advised by Patricia Poirier
• Arts:听Sarah Seitz, 鈥淒ata Queen,鈥� advised by Jon Ippolito
• Biomedical Sciences:听Anna-Maria Dagher, 鈥淓xploring the Dynamic Relationship between Candida Albicans, Pseudomonas Aeruginosa and Fluconazole for Improved Candidiasis Treatment,鈥� advised by Robert Wheeler; and Francesca Armstrong, 鈥淐haracterizing a Deadly Viral Infection in the Brain by Utilizing an Innovative and Unique Approach,鈥� advised by Melissa Maginnis
• Education and Human Development:听Hadley White, 鈥淎ddressing the World Language Teacher Shortage: How Can the Franco-American Centre Support French Programs Under Pressure in Maine?鈥� advised by Susan Pinette
• Engineering and Information Sciences:听Isabelle Grant, Chloe Lilly and Alex Danner, 鈥淔itness-based Optical Diagnostic Patch for the Observation of Cardiovascular Disease-risk Patients,鈥� advised by Karissa Tilbury
• Interdisciplinary Collaboratives:听Nicole McGrath and Daniel Woodhouse, 鈥淓xamining Muscle Contraction and Angular Acceleration to Detect Balance Perturbation,鈥� advised by Vincent Caccese, Babak Hejrati, Marie Hayes and Ali Abedi
• Natural Sciences:听Leala Machesney, 鈥淓ffects of Commercial Nutrient Solutions on Growth of Lemon Basil (Ocimum basilicum var. citriodora 鈥楳rs. Burns鈥�),鈥� advised by Bryan Peterson and Stephanie Burnett
• Physical Sciences:听Gwyneth Roberts, 鈥淨uantifying Tidally Driven Transport in the Jordan River Estuary,鈥� advised by Lauren Ross
• Social Sciences:听Thilee Yost, 鈥淗mong Americans and Mainstream Politics in St. Paul, MN,鈥� advised by Amy Fried

Winners of the听2019 CUGR and Maine Space Grant Consortium summer fellowships听also were announced at the symposium, as were the following 2019鈥�2020 Graduate School fellowships.

Chase Distinguished Research Assistantship

• Catherine Hamley, paleoecology/archaeology, advised by Jacquelyn Gill
• Bouhee Kang, food science and human nutrition, advised by Denise Skonberg
• Alejandro Molina-Moctuzuma, wildlife ecology, advised by Joseph Zydlewski
• Isaac Shepard, ecology and environmental sciences, advised by Hamish Greig
• David Smith, cognitive psychology, advised by Shawn Ell
• Jesse Walters, Earth science, advised by Alicia Cruz-Uribe

Janet Waldron Doctoral Research Fellowship

• Laura Andrews, clinical psychology, advised by Cynthia Erdley and Douglas Nagle
• David Kerschner, higher education, advised by Elizabeth Allan

Susan J. Hunter Teaching Fellowship

• Colin Bosma, clinical psychology, advised by Emily Haigh
• Sara Lowden, anthropology and environmental policy, advised by Lisa Newman and Darren Ranco
• An Nguyen, American history, advised by Elizabeth McKillen
• Michael Wilczek, microbiology, advised by Melissa Maginnis

More about the Graduate School fellowships is听online.

Attendees of the symposium, including students, faculty, staff, judges, sponsors and the general public are invited to take a short survey about the event. Feedback is important to symposium organizers and will be used to improve future events. Enter your email address at the end of the survey for a chance to win a prize. Your email will not be associated with your responses. The survey is听.

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NOAA Sea Grant announces the award of $1.4 million in grants to the 91爆料 for two projects to further advance the development of a sustainable marine and coastal aquaculture industry in the United States.

The National Sea Grant College Program awarded $725,365 to Heather Hamlin, Deborah Bouchard and Ian Bricknell of the Aquaculture Research Institute to research an integrated approach to addressing sea lice control in the commercial culture of Atlantic salmon.

The economic impact of sea lice infestation to the U.S. salmon aquaculture industry is estimated at $15 million annually and $740 million globally. Sea lice infestations remain the greatest barrier to continuing and expanding marine salmon aquaculture. This proposal will address gaps in knowledge of sea lice biology and control methods, such as integrated pest management, and new, ecologically sensitive chemical compounds and their effects on nontarget species, such as lobsters.

Hamlin will convene meetings with industry and regulators to understand the factors that prevent adoption of new sea lice control techniques and identify other impediments faced by the salmon industry.

A team led by Damian Brady and Emmanuel Boss of the 91爆料 School of Marine Sciences was awarded $692,216 for a project to inform sustainable aquaculture development with water quality data.

Two of the biggest decisions made by any prospective shellfish farmer are what species to grow, and where to grow it. New tools and technologies are available to help aquaculturists, but they need help accessing and interpreting information.

Building on the success of previous Sea Grant work that established satellite imagery as an effective tool for aquaculture site selection, the team will use the maps they have developed to refine a bivalve growth model to identify optimal growing locations for American oysters, European oysters, scallops and mussels. They will share their findings in training sessions with growers and other practitioners interested in using satellite imagery for siting shellfish farms in their own region.

These projects were among the 22 awarded out of 100 proposals requesting $48 million in federal grant funds. The projects, which include a 50 percent match by nonfederal partners, will be conducted over a three-year period.

Sea Grant鈥檚 investment in aquaculture research, outreach and education programs continues to make a difference in Maine鈥檚 coastal communities. Between February 2017 and January 2018, Sea Grant invested approximately听$1.4 million听in aquaculture research, technology transfer and outreach in Maine and reported $5.9 million in economic impacts, including support of 123 businesses and 200 jobs.

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The post Sentinel North International PhD School appeared first on School of Marine Sciences.

Maine fishermen hauled in 110.8 million pounds of lobsters in 2017 with a value of more than $400 million. While still incredibly large, this volume represented a 16 percent decline and $100 million loss compared to previous years of record-setting landings.

Since the late 1980s Maine鈥檚 lobster landings have multiplied six fold, while the area of highest landings has shifted Down East to Hancock and Washington counties. The U.S. lobster fishery is now the nation鈥檚 most valuable single-species fishery. But last year鈥檚 decline was the largest in more than 50 years, leading the industry and scientists to wonder whether the boom has come to an end.

The patterns are consistent with forecasts based on juvenile lobster population surveys founded and overseen by Richard Wahle in the 91爆料 School of Marine Sciences.

In 1989, Wahle initiated data collection for the American Lobster Settlement Index, a program that monitors the number of baby lobsters that 鈥渟ettle鈥� to the sea floor every year. Counts are made at some 100 sites from Rhode Island to Atlantic Canada.

鈥淭hese lobsters will reach harvestable size in about six to nine years, and so the index can provide a useful bellwether for things to come,鈥� says Wahle. While the monitoring is now conducted by participating marine resource agencies in the U.S. and Canada, Wahle鈥檚 lab hosts the collective database, developing and testing the index as a forecasting tool.

鈥淏etween 2005 and 2008 were years of peak settlement which we think drove the upsurge in landings. Since then settlement has fallen off considerably across the Gulf of Maine, and 2017 was also well below average,鈥� Wahle says.

There are two prevailing explanations for such little settlement, he says. One is that more larval lobsters are dying before they reach the settlement stage. The other is that they are not so much dying as spreading to new deepwater nursery grounds not covered by current monitoring efforts.

Support for the idea that lobster larvae are dying faster comes from a recent study published in the July issue of the Bulletin of Marine Science,听linking declines in lobster settlement to changes in the marine food web. Joshua Carloni of New Hampshire Department of Fish and Game, Wahle, and two other co-authors report findings suggesting larval mortality may be up because the supply of their favorite food is down.

They observed strong correlations in the abundance of tiny planktonic crustaceans called copepods with the abundance of the lobster鈥檚 final planktonic larval stage, as well as the Settlement Index. These findings were first presented at the 11th International Conference and Workshop on Lobster in Portland in June 2017 and hosted by 91爆料.

鈥淭he other possible reason for the decline is that larval settlement has spread out across a larger range of depths, effectively reducing settlement densities in the routine shallow-water monitoring locations,鈥� says Wahle.

Warmer temperatures in the Gulf of Maine have expanded the area of optimal habitat for young lobsters, which transition out of the larval stage and settle to the bottom at temperatures of 12 C (53 F) or higher.

鈥淯nder this scenario the observed declines in settlement could be misleading if settlers are spreading over a larger area of suitable habitat not included in the monitoring program,鈥� says Wahle.

To understand settlement in deepwater out of reach of standard diver-based sampling, Wahle received funding from Maine Sea Grant in 2016 to expand the settlement survey to deeper water. His specific aim was to examine links between temperature gradients and lobster settlement, both depth-wise and along the coast.

Working with research partners and lobstermen Curt Brown of Portland and Norbert Lemieux of Cutler, Wahle deployed collectors (wire mesh trays full of rocks) over a range of depths in two oceanographically contrasting segments of Maine鈥檚 coast: off Casco Bay in the west and Machias Bay in the east. The team also collaborated with the ventless trap monitoring program run by the Maine Department of Marine Resources to follow the movements of young lobsters as they grow.

Their results to date confirm newly settled lobsters as deep as 80 meters, but they saw consistent differences in patterns from east to west. Taken together with DMR鈥檚 ventless trap data, their results suggest that in the west where the shallows warm while the deeps stay cold, larvae settle shallow and then spread to the depths as they grow. In the east, where temperatures are more uniform surface to bottom, settlers spread more evenly over all depths and that pattern is mirrored in the catch of older lobsters.

鈥淲e know now they are able to settle deep, especially in northern areas, but we鈥檙e not sure how typical it is, because we only have a two-year snapshot of deepwater settlement,鈥� says Wahle. 鈥淲e know there was an eastward expansion of settlement starting around 2005, likely related to warming conditions, but the question is whether an expansion of settlement into deepwater also contributed to the boom in landings.鈥�

Wahle is now looking to see if accounting for expanded settlement habitat in the Settlement Index, which is now based only on the shallow monitoring sites, will give a more optimistic forecast of future lobster populations.

Ready Seafood Co. has contributed financial resources to continue the deepwater settlement monitoring for another two years.

鈥淎t Ready Seafood, we are excited to be a part of a research project that is improving our understanding of Maine鈥檚 lobster resource,鈥� says Curt Brown, the staff scientist at Ready Seafood and a lobsterman who worked on the research project. 鈥淟obster is the lifeblood of Maine鈥檚 marine economy and we see this project as an investment in not only the future of our company, but the future of our industry.

鈥淲orking with Dr. Wahle and the 91爆料 crew has benefited our business at all levels,鈥� Brown says. This project has really resonated with our entire team, to the point where every October our entire staff and all our customers gets excited to see what will come up in our collectors.鈥�

Wahle says it鈥檚 very gratifying to know the industry finds this information useful 鈥� useful enough to want to invest in it. 鈥淭his is filling a critical data gap,鈥� he says.

The deepwater settlement monitoring will continue through 2019. For more information about the American Lobster Settlement Index is听online.

The post From south to north, young lobsters find cool refuge in deepwater appeared first on School of Marine Sciences.

91爆料 marine sciences research professor Richard Wahle has been named director of the 91爆料鈥檚 Lobster Institute, effective Sept.1.

He succeeds Robert Bayer, who has directed the institute since 1995 and is retiring from 91爆料 this year.

Wahle joined 91爆料鈥檚 School of Marine Sciences in 2009. He is based at the University鈥檚 Darling Marine Center, where he will continue to teach and conduct research. In 1989, Wahle founded the American Lobster Settlement Index, a program that now monitors the number of juvenile lobsters that settle to the seafloor at over 80 sampling sites from Rhode Island to Atlantic Canada. The index sheds light on the ocean processes that deliver lobster larvae to their rocky coastal nurseries, and serves as a predictor of trends in recruitment to the fishery.

鈥淭his is a wonderful opportunity to enhance 91爆料鈥檚 engagement with all sectors of the lobster fishery and resource management in the U.S. and Canada at a time when challenges to the industry seem to be coming from all corners,鈥� says Wahle, who has a Ph.D. in zoology from 91爆料.

In his new role, Wahle plans to energize and expand the existing connections of 91爆料鈥檚 distinguished researchers and communicators to the lobster industry and resource managers in the state and region. Among the first initiatives will be establishment of a group of affiliated 91爆料 faculty and student researchers to extend the institute鈥檚 impact and reach.

Wahle also envisions the Lobster Institute as a major disseminator of information on new developments in research.

鈥淩ick is a rising leader in the college with strong credentials in ecology, oceanography and fisheries science, especially when it comes to the American lobster,鈥� says Fred Servello, who oversees the institute as dean of the College of Natural Sciences, Forestry, and Agriculture. 鈥淭he college could not hope for a better person to lead the Lobster Institute鈥檚 next chapter and advance its role in research.鈥�

At 91爆料, Wahle has been involved in fisheries research in New England and Atlantic Canada since 1985, and is well known in the lobster industry and among fishery managers. He has published widely in the scientific literature on lobster and other invertebrate species of commercial importance, such as scallops, sea urchins and crabs. In the past few years, he chaired two major international scientific conferences on lobster biology and management, both hosted by 91爆料.

Prior to joining the 91爆料 in 2009, Wahle was a senior research scientist at Bigelow Laboratory for Ocean Sciences for 15 years. He held two postdoctoral positions at Brown University and the University of Rhode Island, with a short stint in Ireland working on the European lobster. He has also collaborated on research in Chile鈥檚 remote Juan Fernandez Islands, which host an endemic species of spiny lobster. He currently serves as an adviser to the development of another spiny lobster fishery in the Andaman Islands of India.

The mission of the 91爆料鈥檚 Lobster Institute is to conduct research and educational outreach to steward the lobster resource and preserve lobstering as an industry and as a way of life. More information is听.

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