Baumann Hannes

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Baumann

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Hannes

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0000-0002-4039-4230

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Larval transport pathways from three prominent sand lance habitats in the Gulf of Maine

(Wiley, 2022-03-15) Suca, Justin J. ; Ji, Rubao ; Baumann, Hannes ; Pham, Kent ; Silva, Tammy L. ; Wiley, David N. ; Feng, Zhixuan ; Llopiz, Joel K.

Northern sand lance (Ammodytes dubius) are among the most critically important forage fish throughout the Northeast US shelf. Despite their ecological importance, little is known about the larval transport of this species. Here, we use otolith microstructure analysis to estimate hatch and settlement dates of sand lance and then use these measurements to parametrize particle tracking experiments to assess the source–sink dynamics of three prominent sand lance habitats in the Gulf of Maine: Stellwagen Bank, the Great South Channel, and Georges Bank. Our results indicate the pelagic larval duration of northern sand lance lasts about 2 months (range: 50–84 days) and exhibit a broad range of hatch and settlement dates. Forward and backward particle tracking experiments show substantial interannual variability, yet suggest transport generally follows the north to south circulation in the Gulf of Maine region. We find that Stellwagen Bank is a major source of larvae for the Great South Channel, while the Great South Channel primarily serves as a sink for larvae from Stellwagen Bank and Georges Bank. Retention is likely the primary source of larvae on Georges Bank. Retention within both Georges Bank and Stellwagen Bank varies interannually in response to changes in local wind events, while the Great South Channel only exhibited notable retention in a single year. Collectively, these results provide a framework to assess population connectivity among these sand lance habitats, which informs the species' recruitment dynamics and impacts its vulnerability to exploitation.
Fatty acid profiles of M. menidia females and their unfertilized eggs.

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2017-11-15) Baumann, Hannes ; Nye, Janet

Gas chromatography was used to quantify the absolute (mg g dry weight-1) and relative concentrations (% of total) of 27 FAs for each of 5 females (whole individual) and their unfertilized eggs (~ 1 ml). Samples were first dried and then homogenized in a solution of chloroform-methanol (2:1 v/v) and tricosanoic acid (23:0) as an internal standard for quantification of mg g−1 dry mass of fatty acids. Lipids were cold-extracted from approximately 50 mg of dry mass. A Shimadzu GC-2014 gas chromatograph set with a Phenomenex ZB-WAX plus capillary column (30 m long; 0.53 mm ID; 1.0 µm thick) was used to quantify FAs, and individual FAs were identified by comparison to commercial standards (Supelco, Inc). These data are published in "Snyder, J.T.*, Murray, C.S.*, and Baumann, H. (2017) Potential for maternal effects on offspring CO2-sensitivities in a coastal marine fish. Journal of Experimental Marine Biology and Ecology. doi:10.1016/j.jembe.2017.11.002" and are affiliated with the dataset "Survival, length, and growth responses of M. menidia offspring from different females exposed to contrasting CO2 environments. doi:10.1575/1912/bco-dmo.719449". For a complete list of measurements, refer to the supplemental document 'Field_names.pdf', and a full dataset description is included in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: http://www.bco-dmo.org/dataset/719379
Laboratory study of long-term growth in juvenile Menidia menidia (Atlantic silverside) at contrasting CO2 levels for 16 to 122 days in 2015

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, ) Baumann, Hannes ; Nye, Janet

These data include the total length, wet weight, and condition factor of juvenile Menidia menidia (Atlantic silverside) reared at three contrasting pCO2 levels. Experiments were performed at the University of Connecticut’s Avery Point in the Rankin Laboratory in 2015. M. menidia are a valued model species and pCO2 levels were chosen to represent the contemporary and potential future conditions of productive coastal habitats. These data were collected by Dr. Hannes Baumann of the University of Conneticut in support of the collaborative research project “Understanding the effects of acidification and hypoxia within and across generations in a coastal marine fish. For a complete list of measurements, refer to the supplemental document 'Field_names.pdf', and a full dataset description is included in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: http://www.bco-dmo.org/dataset/651461
Survival data from static and fluctuating pCO2 x dissolved oxygen (DO) experiments on Menidia menidia

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-10-31) Cross, Emma L. ; Murray, Christopher S. ; Baumann, Hannes

Coastal ecosystems experience substantial natural fluctuations in pCO2 and dissolved oxygen (DO) conditions on diel, tidal, seasonal and interannual timescales. Rising carbon dioxide emissions and anthropogenic nutrient input are expected to increase these pCO2 and DO cycles in severity and duration of acidification and hypoxia. How coastal marine organisms respond to natural pCO2 × DO variability and future climate change remains largely unknown. Here, we assess the impact of static and cycling pCO2 × DO conditions of various magnitudes and frequencies on early life survival and growth of an important coastal forage fish, Menidia menidia. Static low DO conditions severely decreased embryo survival, larval survival, time to 50% hatch, size at hatch and post-larval growth rates. Static elevated pCO2 did not affect most response traits, however, a synergistic negative effect did occur on embryo survival under hypoxic conditions (3.0 mg L-1). Cycling pCO2 × DO, however, reduced these negative effects of static conditions on all response traits with the magnitude of fluctuations influencing the extent of this reduction. This indicates that fluctuations in pCO2 and DO may benefit coastal organisms by providing periodic physiological refuge from stressful conditions, which could promote species adaptability to climate change. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/777117
Survival of northern sand lance Ammodytes dubius offspring under factorial CO2 x temperature conditions

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-05-27) Murray, Christopher S. ; Wiley, David ; Baumann, Hannes

Survival source data of 2016-2018 experimental work on the sensitivity of northern sand lance (A. dubius) offspring to combined ocean warming and acidification. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/749429
Survival, length, and growth responses of M. menidia offspring from different females exposed to contrasting CO2 environments.

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2017-11-15) Baumann, Hannes ; Nye, Janet

Wild-caught M. menidia adults were spawned to test whether offspring from different mothers differ in their average survival and size responses to elevated CO2 conditions. The experiment quantified three related survival and three size traits for each replicate, female, and CO2 treatment: embryo survival (fertilization to 1 dph), larval survival (1 to 16 dph), and overall survival (fertilization to 16 dph); and size (SL) at hatch (1 dph), SL at 16 dph, and larval growth rate (GR = (SL16dph – SL1dph)/15). These data are published in "Snyder, J.T.*, Murray, C.S.*, and Baumann, H. (2017) Potential for maternal effects on offspring CO2-sensitivities in a coastal marine fish. Journal of Experimental Marine Biology and Ecology. doi:10.1016/j.jembe.2017.11.002" and are affiliated with the dataset "Fatty acid profiles of M. menidia females and their unfertilized eggs. doi:10.1575/1912/bco-dmo.719454". For a complete list of measurements, refer to the supplemental document 'Field_names.pdf', and a full dataset description is included in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: http://www.bco-dmo.org/dataset/719420
Morphometrics of northern sand lance Ammodytes dubius offspring reared under factorial CO2 x temperature conditions

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-09-23) Murray, Christopher S. ; Wiley, David ; Baumann, Hannes

Morphometric source data of 2016-2018 experimental work on the sensitivity of northern sand lance (A. dubius) offspring to combined ocean warming and acidification. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/749958
Morphometric data from experiments on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2018 and 2020

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-01-13) Baumann, Hannes ; Nye, Janet

Source data of two years of experimentation on Northern sand lance (Ammodytes dubius) embryos at different temperature and pCO2 conditions. Founder adults were sampled at Stellwagen Bank National Marine Sanctuary (SBNMS) (42° 9' 58.26" N, 70° 18' 44.1" W). Two complementary experiments were conducted in late 2018 (E1) and 2020 (E2), each rearing newly fertilized sand lance embryos to hatch over the course of 32-65 days. This dataset includes information on morphometrics of eggs and hatchlings. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/867447
Egg measurements from the fecundity trial in a study of CO2 and temperature-specific reproductive traits in Menidia menidia

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-04-26) Baumann, Hannes ; Nye, Janet

The study examined the temperature- and CO2-specific size and reproductive traits in female Atlantic silversides (Menidia menidia) after long-term and whole-life rearing. This dataset includes egg measurements from the fecundity trial. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/845921
Carbonate chemistry data from static and fluctuating pCO2 x dissolved oxygen (DO) experiments on Menidia menidia

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-10-31) Cross, Emma L. ; Murray, Christopher S. ; Baumann, Hannes

Coastal ecosystems experience substantial natural fluctuations in pCO2 and dissolved oxygen (DO) conditions on diel, tidal, seasonal and interannual timescales. Rising carbon dioxide emissions and anthropogenic nutrient input are expected to increase these pCO2 and DO cycles in severity and duration of acidification and hypoxia. How coastal marine organisms respond to natural pCO2 × DO variability and future climate change remains largely unknown. Here, we assess the impact of static and cycling pCO2 × DO conditions of various magnitudes and frequencies on early life survival and growth of an important coastal forage fish, Menidia menidia. Static low DO conditions severely decreased embryo survival, larval survival, time to 50% hatch, size at hatch and post-larval growth rates. Static elevated pCO2 did not affect most response traits, however, a synergistic negative effect did occur on embryo survival under hypoxic conditions (3.0 mg L-1). Cycling pCO2 × DO, however, reduced these negative effects of static conditions on all response traits with the magnitude of fluctuations influencing the extent of this reduction. This indicates that fluctuations in pCO2 and DO may benefit coastal organisms by providing periodic physiological refuge from stressful conditions, which could promote species adaptability to climate change. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/777144
Data from the spawning trial in a study of CO2 and temperature-specific reproductive traits in Menidia menidia

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-04-26) Baumann, Hannes ; Nye, Janet

The study examined the temperature- and CO2-specific size and reproductive traits in female Atlantic silversides (Menidia menidia) after long-term and whole-life rearing. This dataset includes results from the spawning trial. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/845633
Otolith microstructure of young-of-year Atlantic silversides (Menidia menidia) from Mumford Cove during 2015

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2019-11-20) Pringle, Julie W. ; Baumann, Hannes

Back-calculated age, hatch date, length-at-age, growth rate, and experienced temperature of young-of-year Atlantic silversides (Menidia menidia) collected during 3 successive collections in Mumford Cove, CT in fall 2015. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/782247
Data on hatching frequency and success from an experiment on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2020

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-01-13) Baumann, Hannes ; Nye, Janet

Source data of two years of experimentation on Northern sand lance (Ammodytes dubius) embryos at different temperature and pCO2 conditions. Founder adults were sampled at Stellwagen Bank National Marine Sanctuary (SBNMS) (42° 9' 58.26" N, 70° 18' 44.1" W). Two complementary experiments were conducted in late 2018 (E1) and 2020 (E2), each rearing newly fertilized sand lance embryos to hatch over the course of 32-65 days. This dataset includes information from the switch experiment (E2) in 2020. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/867931
CO2 × temperature specific early life survival and growth of Menidia menidia assessed by 5 factorial experiments

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2018-07-24) Murray, Christopher S. ; Baumann, Hannes

In five individual rearing experiments, wild-caught M. menidia adults were spawned to test offspring sensitivity to factorial combinations of pCO2 (nominal: 400, 2200, 4000, and 6000 µatm) and temperature (17, 20, 24, and 28 °C) through measurements of early-life survival and growth. For experiment 1, adults were collected from Poquot Beach (40.947376, -73.10258), and the experiment took place at Stony Brook University’s Flax Pond Marine Laboratory. For experiments 2–5, spawning adults were collected from Mumford Cove (41.321526, -72.015247), and experiments were conducted in the Rankin Seawater Facility at University of Connecticut’s Avery Point campus. The experiments quantified two survival and two growth traits for each replicate and CO2 × temperature treatment; embryo survival (fertilization to 1 dph), larval survival (1 dph to experiment termination), size (SL) at hatch (1 dph), and growth rate ((SL at end of experiment – SL 1dph)/number days reared post hatch). These data are published in: Murray, C.S., and Baumann, H. (2018) You Better Repeat It: Complex CO2 × Temperature Effects in Atlantic Silverside Offspring Revealed by Serial experimentation. Diversity. doi:10.3390/d10030069. For a complete list of measurements, refer to the supplemental document 'Field_names.pdf', and a full dataset description is included in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: http://www.bco-dmo.org/dataset/732818
Fukushima-derived radionuclides in the ocean and biota off Japan

(National Academy of Sciences, 2012-04-02) Buesseler, Ken O. ; Jayne, Steven R. ; Fisher, Nicholas S. ; Rypina, Irina I. ; Baumann, Hannes ; Baumann, Zofia ; Breier, Crystaline F. ; Douglass, Elizabeth M. ; George, Jennifer ; Macdonald, Alison M. ; Miyamoto, Hiroomi ; Nishikawa, Jun ; Pike, Steven M. ; Yoshida, Sachiko
Sensitivity of sand lance to shifting prey and hydrography indicates forthcoming change to the northeast US shelf forage fish complex

(Oxford University Press, 2021-01-26) Suca, Justin J. ; Wiley, David N. ; Silva, Tammy L. ; Robuck, Anna R. ; Richardson, David E. ; Glancy, Sarah G. ; Clancey, Emily ; Giandonato, Teresa ; Solow, Andrew R. ; Thompson, Michael A. ; Hong, Peter ; Baumann, Hannes ; Kaufman, Les ; Llopiz, Joel K.

Northern sand lance (Ammodytes dubius) and Atlantic herring (Clupea harengus) represent the dominant lipid-rich forage fish species throughout the Northeast US shelf and are critical prey for numerous top predators. However, unlike Atlantic herring, there is little research on sand lance or information about drivers of their abundance. We use intra-annual measurements of sand lance diet, growth, and condition to explain annual variability in sand lance abundance on the Northeast US Shelf. Our observations indicate that northern sand lance feed, grow, and accumulate lipids in the late winter through summer, predominantly consuming the copepod Calanus finmarchicus. Sand lance then cease feeding, utilize lipids, and begin gonad development in the fall. We show that the abundance of C. finmarchicus influences sand lance parental condition and recruitment. Atlantic herring can mute this effect through intra-guild predation. Hydrography further impacts sand lance abundance as increases in warm slope water decrease overwinter survival of reproductive adults. The predicted changes to these drivers indicate that sand lance will no longer be able to fill the role of lipid-rich forage during times of low Atlantic herring abundance—changing the Northeast US shelf forage fish complex by the end of the century.
High collocation of sand lance and protected top predators: implications for conservation and management

(Wiley Open Access, 2020-10-06) Silva, Tammy L. ; Wiley, David N. ; Thompson, Michael A. ; Hong, Peter ; Kaufman, Les ; Suca, Justin J. ; Llopiz, Joel K. ; Baumann, Hannes ; Fay, Gavin

Spatial relationships between predators and prey provide critical information for understanding and predicting climate‐induced shifts in ecosystem dynamics and mitigating human impacts. We used Stellwagen Bank National Marine Sanctuary as a case study to investigate spatial overlap among sand lance (Ammodytes dubius), a key forage fish species, and two protected predators: humpback whales (Megaptera novaeangliae) and great shearwaters (Ardenna gravis). We conducted 6 years (2013–2018) of standardized surveys and quantified spatial overlap using the global index of collocation. Results showed strong, consistent collocation among species across seasons and years, suggesting that humpback whales and great shearwater distributions are tightly linked to sand lance. We propose that identifying sand lance habitats may indicate areas where humpbacks and shearwaters aggregate and are particularly vulnerable to human activities. Understanding how sand lance influence predator distributions can inform species protection and sanctuary management under present and future scenarios.
Data from the fecundity trial in a study of CO2 and temperature-specific reproductive traits in Menidia menidia

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2021-04-26) Baumann, Hannes ; Nye, Janet

The study examined the temperature- and CO2-specific size and reproductive traits in female Atlantic silversides (Menidia menidia) after long-term and whole-life rearing. This dataset includes results from the fecundity trial. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/845906
Data on chorion thickness from embryos studied in an experiment on CO2 sensitivity of Northern sand lance (Ammodytes dubius) embryos conducted in 2018

(Biological and Chemical Oceanography Data Management Office (BCO-DMO). Contact: bco-dmo-data@whoi.edu, 2022-01-13) Baumann, Hannes ; Nye, Janet

Source data of two years of experimentation on Northern sand lance (Ammodytes dubius) embryos at different temperature and pCO2 conditions. Founder adults were sampled at Stellwagen Bank National Marine Sanctuary (SBNMS) (42° 9' 58.26" N, 70° 18' 44.1" W). Two complementary experiments were conducted in late 2018 (E1) and 2020 (E2), each rearing newly fertilized sand lance embryos to hatch over the course of 32-65 days. This dataset includes information on chorion thickness from the first experiment. For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/867837
The role of sand lances (Ammodytes sp.) in the Northwest Atlantic ecosystem: a synthesis of current knowledge with implications for conservation and management

(Wiley, 2020-03-20) Staudinger, Michelle D. ; Goyert, Holly ; Suca, Justin J. ; Coleman, Kaycee ; Welch, Linda ; Llopiz, Joel K. ; Wiley, David N. ; Altman, Irit ; Applegate, Andew ; Auster, Peter J. ; Baumann, Hannes ; Beaty, Julia ; Boelke, Deirdre ; Kaufman, Les ; Loring, Pam ; Moxley, Jerry ; Paton, Suzanne ; Powers, Kevin D. ; Richardson, David E. ; Robbins, Jooke ; Runge, Jeffrey A. ; Smith, Brian ; Spiegel, Caleb ; Steinmetz, Halley

The American sand lance (Ammodytes americanus, Ammodytidae) and the Northern sand lance (A. dubius, Ammodytidae) are small forage fishes that play an important functional role in the Northwest Atlantic Ocean (NWA). The NWA is a highly dynamic ecosystem currently facing increased risks from climate change, fishing and energy development. We need a better understanding of the biology, population dynamics and ecosystem role of Ammodytes to inform relevant management, climate adaptation and conservation efforts. To meet this need, we synthesized available data on the (a) life history, behaviour and distribution; (b) trophic ecology; (c) threats and vulnerabilities; and (d) ecosystem services role of Ammodytes in the NWA. Overall, 72 regional predators including 45 species of fishes, two squids, 16 seabirds and nine marine mammals were found to consume Ammodytes. Priority research needs identified during this effort include basic information on the patterns and drivers in abundance and distribution of Ammodytes, improved assessments of reproductive biology schedules and investigations of regional sensitivity and resilience to climate change, fishing and habitat disturbance. Food web studies are also needed to evaluate trophic linkages and to assess the consequences of inconsistent zooplankton prey and predator fields on energy flow within the NWA ecosystem. Synthesis results represent the first comprehensive assessment of Ammodytes in the NWA and are intended to inform new research and support regional ecosystem‐based management approaches.

Baumann Hannes

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