[Conference] Chris and Hannes present at the 40th Larval Fish Conference


The 40th Larval Fish Conference of the American Fisheries Society‘s (AFS) Early life history section (ELHS) was held from 19 – 23 June 2016 at the Chesapeake Biological Laboratory in Solomons, MD.

This small conference brought together approximately 150 international scientists to talk about larval fish growth, survival, maternal effects, dispersal, systematics to name just a few. It was held in special honor of Edward Houde, who over his long career has inspired generations of marine scientists.

While Chris was presenting last years data about growth consequences of high CO2 exposure across life stages in our model species, the Atlantic Silverside, Hannes participated in the Early Career workshop and gave a talk about how to approach the writing of a scientific manuscript (PDF).

Thanks to all the colleagues and friends for the great time and conversations. See you next year in Austin (TX)!

All participants of the 2016 Larval Fish Conference in Solomons, MD
Thunderous clouds over Chesapeake Bay, view from CBL
Generations of scientists were inspired by the work of Ed Houde (middle, right: Catriona Clemessen)
Chris standing on the tip of Cove Point (Chesapeake Bay)
Hannes trying to convey to early career scientist at the LFC that writing a scientific manuscript can be approached by breaking up the process into pieces …

[Lab News] Jake featured at UMM alumni news

Jake reported back to his old undergraduate institution about his current research and how the University of Maine at Machias has inspired him to pursue a career in Marine Sciences.

This week’s Alumni Spotlight shines on Jake Snyder, UMM Class of 2014 with a degree in Marine Biology. Jake lives in Canterbury, Connecticut, and is a research assistant at the University of Connecticut’s Avery Point.

Tell us a little bit about what you are doing now:

Currently, I am a research assistant at UConn Avery Point as part of my masters. I was accepted into the graduate program here in the fall of 2015, and I am now working towards my Masters in Biological Oceanography. Our lab is small, with myself, a doctoral student, and our advisor, but we’re ambitious. Our research is focused on the synergistic effects of ocean acidification, increased temperature, and decreased oxygen on the Atlantic Silverside (Menidia menidia), a near-shore schooling fish. We’ve also recently started working with the Northern Sandlance (Ammodytes dubius), a fish native to Stellwagen Bank. In addition to the lab-based research, I am also digitizing the ~40 year data set collected by Project Oceanology, and developing that into a searchable database as part of the LISICOS (Long Island Sound Integrated Coastal Observing System) system.

Read the whole feature here …

Jake Snyder on Auk
Jake helping to retrieve a SEABOSS sediment grab on board the R/V Auk (Nov 2015)

[Student video] Climate Change: A Future for Fish in a Changing Ocean

A big shout-out to Megan, Rainer, and Liz who apart from their intrepid work as volunteers in our lab also excelled here in their video project for MARN3000. They interviewed Profs. Kelly Lombardo, Michael Finiguerra, and Hannes Baumann about aspects of Marine Climate Change and then cut their answers with researched video material from the web. Note the sartorial touch throughout the clip (6 min)!
Well done, all!

Megan Barry
Rainer Moy-Huwyler
Elizabeth Karamavros

[Outreach] A busy year in Mumford Cove

On 13 April, Hannes was invited to the board meeting of the Mumford Cove Association to present a brief update about our groups research activities in and around the cove. It is part of our commitment to public education and outreach to keep property owners informed and maintain good relationships with all parties involved.

The information material below contains graphical summaries of our activities, i.e., measuring water quality parameters continuously with a logging probe and conducting biweekly beach seine surveys for silversides.

To a productive year 2016 in the cove!

Mumford Cove Ass_probe
Mumford Cove Ass_silversides

[Brown bag] Tips & tricks for preparing a good presentation

In preparation for the upcoming Feng Graduate Research Colloquium on Thursday, May 12 (Conn Avery Point, Marine Sciences), Hannes gave a brown bag seminar on how to make an effective presentation.

You can access/download the powerpoint of via this link below or by clicking on the image below.

Brown bag 4-13-16

[Lecture] OA multistressor lecture at Mitchell College

electure cover

On 15 March, Hannes gave a lecture at Mitchell College in New London, talking about the combined effects of ocean warming, acidification, and hypoxia on marine organisms. The entire lecture is publicly available at Limnology & Oceanography e-lectures.

“It was such a pleasure to have you present to the class today; your lecture was excellent – engaging with just the right amount and level of information. I’m glad that you intend to continue to provide outreach/education to the community on this topic.”

Amy Cabaniss, Adjunct Faculty – Marine Ecology, Environmental Studies (STEM)

[Talk] Multistressor seminar at URI

URI talk

On 26 February 2016, H. Baumann was invited to give a seminar at the Biological & Environmental Sciences Colloquium Series at the University of Rhode Island, featuring the recently published e-lecture on “Combined effects of ocean acidification, warming, and deoxygenation on marine organisms”
His host, David Bengston has been a renowned fisheries and aquaculture biologist for the past 40 years.

Baumann, H. (2016)
Combined effects of ocean acidification, warming, and hypoxia on marine organisms.
Limnology and Oceanography e-Lectures 6:1-43

[Lab News] Laboratory silversides “becoming famous”!

Sampling day! On September 15th 2015, our lab concluded a long-term growth experiment on four large laboratory populations (500+ fish per tank) of Atlantic silversides (Menidia menidia), which were reared at ambient and high CO2 levels and low temperature (17C) and feeding conditions. Given all the hard work rearing these fish from eggs to 4 month old juveniles, sacrificing them is always a bittersweet moment. To avoid the word ‘killing’, we therefore coined the euphemism “becoming famous”.

Thanks to Jake’s new GoPro, here’s a time lapse of all of us working for hours to sample, measure and preserve various parts of the populations for later analyses of weight, sex, as well as genetic and transcriptomic approaches.

Chris Murray measuring juvenile Atlantic silversides that were reared in our lab for the past four months
Chris Murray measuring juvenile Atlantic silversides that were reared in our lab for the past four months
Fish measurement party
Some fish were measured immediately, others were preserved in formaldehyde/seawater solution, frozen at -20C or -80C
Hannes Baumann measuring some the many fish that were sampled on 15 Sep 2015
Hannes measuring some the many fish that were sampled on 15 Sep 2015.

[Science Panel] 24th Annual Long Island Sound Citizens Summit

“Combined effects of low oxygen and low pH on coastal marine organisms”

Save the Sound 24th Annual Citizen Summit

April 9th 2015. H. Baumann shared insights from experimental work on the combined effects of low oxygen and low pH on coastal fish and shellfish as part of a science panel discussion during the 24th Annual Citizen Summit organized by ‘Save the Sound’
The motto of the 24th Annual Citizen Summit, organized by Save the Sound was ‘Coming back from the brink’. Speakers highlighted the tremendous amount of work towards reducing the eutrophication problem of Long Island Sound, but also the challenges ahead. Baumann highlighted that in addition to traditional concerns of hypoxia as a negative consequence of eutrophication, acidification is a co-occurring stressor. The combination of these two stressors needs to be better understood and tested, because in ecology the effects of two co-occurring stressors may not simply be the sum of each stressor acting alone. Sometimes … 1 + 1 > 2. Other panelists were Dr. Jamie Vaudrey (UConn) and Lisa Suatoni (NRDC) moderated by Dr. Johan (Joop) Varekamp (Wesleyan University and Chairman of the Board, Connecticut Fund for the Environment).

Web: 24th Annual Long Island Sound Citizens Summit

[Campus Talk] H. Baumann talks at Avery Point Global Cafe

“Nets versus Nature: Have we indadvertedly made our fish smaller?”

Avery Point Global Cafe

April 9th 2015. H. Baumann contributed to Avery Point’s Global Cafe Series “The Omnivore at Sea” by talking about the topic of fisheries-induced evolution.
When hearing and talking about sustainable seafood, issues such as overfishing, fishing-related habitat destruction (e.g., trawls tearing through bottom habitat, dynamite fishing) or changes to the architecture of marine ecosystems (‘fishing down the foodweb’) often come to mind. Baumann talked about another potential effect of heavy decade-long commercial fishing, which is less clear but perhaps even more insidious. Nature’s age-old rule of survival in the ocean, i.e., that faster growing fish have better chances of survival, is suddenly reversed when size-selective fishing becomes the dominant agent of mortality. Because in fishing, a faster growing fish will just be susceptible sooner to get caught by the meshes of a fishing trawl. We instinctively know that life on earth has adjusted before to changing selection pressures, and there’s little reason to suspect that this case might be different. Commercial fishing may trigger fisheries-induced evolution, and this may mean smaller, earlier maturing fish and less total biomass for centuries to come. The brief talk will summarize the problem as we know it, explore alternative explanations and look at examples, which show that the issue is also inextricably linked to all the other natural and man-made changes (warming, food web) that affect fish stocks. A cautionary approach that considers evolutionary processes within the framework of sustainable fisheries is surely warranted.