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Research Spending & Results

Award Detail

PD/PI:
  • Matthew J Iacchei
Award Date:06/23/2015
Estimated Total Award Amount: $ 174,000
Funds Obligated to Date: $ 174,000
  • FY 2015=$174,000
Start Date:09/01/2015
End Date:08/31/2017
Transaction Type:Grant
Agency:NSF
Awarding Agency Code:4900
Funding Agency Code:4900
CFDA Number:47.050
Primary Program Source:040100 NSF RESEARCH & RELATED ACTIVIT
Award Title or Description:OCE-PRF Track 1 (Broadening Participation): What drives population connectivity in the open sea?
Federal Award ID Number:1522572
DUNS ID:NR
Program:EDUCATION/HUMAN RESOURCES,OCE
Program Officer:
  • Elizabeth Rom
  • (703) 292-7709
  • elrom@nsf.gov

Awardee Location

Street:
City:Honolulu
State:HI
ZIP:96815-4419
County:Honolulu
Country:US
Awardee Cong. District:01

Primary Place of Performance

Organization Name:Iacchei Matthew J
Street:
City:Honolulu
State:HI
ZIP:96816-4816
County:Honolulu
Country:US
Cong. District:01

Abstract at Time of Award

As earth's climate changes, populations of both terrestrial and marine species are responding in one of three major ways: by adapting to new environments, by moving to a more favorable environment, or by perishing. While evaluating these responses to climate change has been ongoing for terrestrial species and some coastal marine species for at least a decade, the data on open ocean zooplankton has been limited. This gap in knowledge is significant, as zooplankton form the base of the open ocean food chain, and zooplankton are hypothesized to be some of the most sensitive marine species to environmental change. This project focuses on the copepod Pleuromamma xiphias, a dominant migratory zooplankton in tropical and subtropical waters worldwide, and how populations of P. xiphias are affected by environmental change. Results will be important for understanding how open ocean food webs and nutrient cycles are changing with time, and how this in turn may affect the abundance and distribution of species higher in the food chain that are vital to our food resources. In conjunction with this work, the fellow will mentor traditionally underrepresented groups of students in Hawai'i at three critical educational levels: when they are initially becoming excited about science and learning about the role of science in society (K-12), when they are deciding whether or not to pursue science as a career (undergraduate students), and when they require strong mentorship to succeed in their scientific pursuits (graduate students). In marine systems, planktonic species have been proposed as sensitive indicators of environmental change. With short generation times, populations of these pelagic organisms often show tight coupling between physical forcing and biological response. However, the question remains whether plankton have the capacity to adaptively evolve with respect to rapidly changing ocean regimes, whether they will decrease in population abundance and geographic extent, or whether they will alter their primary habitat preferences. To understand the adaptive capacity of plankton populations, we first need to understand the spatiotemporal scale of gene exchange for the species of interest, and identify the factors that determine the boundaries of those scales. The proposed project will use genome-wide data from a pelagic copepod (Pleuromamma xiphias), coupled with multiple environmental variables collected across a spatio-temporal gradient, to assess what determines the scale of population connectivity in the open sea, and infer how these factors influence the response of Atlantic Ocean P. xiphias populations to climate change. Specifically, the fellow will examine the following hypotheses: 1) Biological and physical environment are selective forces shaping population structure in P. xiphias; 2) Migration rate is high among sites within the North and South Atlantic gyres, but low at the poleward edges of each gyre and across the equator; 3) P. xiphias populations will be increasing in abundance and expanding toward the poleward range of their distribution, while sites at the equatorial edges will be undergoing bottlenecks. This work will be conducted under the mentorship of Erica Goetze, PhD in the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawai'i at Manoa. Each of the comparisons (genes, sites, time points, environmental variables) will contribute incremental insights into the genetic structuring of pelagic zooplankton. Combined, they have the potential to transform the way we think about population connectivity in the open ocean, and shed new light on the potential adaptive capacity of pelagic copepods in a changing climate.

Publications Produced as a Result of this Research

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Goetze E, Hüdepohl PT, Chang C, Van Woudenberg L, Iacchei M, and Peijnenburg KTCA "Ecological dispersal barrier across the equatorial Atlantic in a migratory planktonic copepod" Progress in Oceanography, v.158, 2017, p.203-212. doi:10.1016/j.pocean.2016.07.001 

Iacchei M, Gaither MR, Bowen BW, and Toonen RJ "Testing dispersal limits in the sea: range-wide phylogeography of the pronghorn spiny lobster Panulirus penicillatus" Journal of Biogeography, v.43, 2016, p.1032-1044. doi:doi:10.1111/jbi.12689 

Sommer SA, Van Woudenberg L, Lenz PH, Cepeda G, and Goetze E "Vertical gradients in species richness and community composition across the twilight zone in the North Pacific Subtropical Gyre" Molecular Ecology, v.26, 2017, p.6136-6156. doi:10.1111/mec.14286 

Bowen BW, Gaither MR, DiBattista JD, Iacchei M, Andrews KR, Grant WS, Toonen RJ, and Briggs JC "Comparative phylogeography of the ocean planet" Proceedings of the National Academy of Sciences of the United States of America, v.113, 2016, p.7962-7969. doi:10.1073/pnas.1602404113 

Iacchei M, Butcher E, Portner E, and Goetze E "It's about time: Insights into temporal genetic patterns in oceanic zooplankton from biodiversity indices" Limnology and Oceanography, v.62, 2017, p.1836-1852. doi:10.1002/lno.10538 

Dudoit A, Iacchei M, Coleman RR, Gaither MR, Browne WR, Bowen BW, and Toonen RJ "The little shrimp that could: phylogeography of the circumtropical shrimp, Stenopus hispidus (Crustacea: Decapoda), reveals divergent Atlantic and Pacific lineages" PeerJ, v., 2018, p.e4409. doi:10.7717/peerj.4409 

Dudoit, ?Ale?alani and Iacchei, Matthew and Coleman, Richard R. and Gaither, Michelle R. and Browne, William E. and Bowen, Brian W. and Toonen, Robert J. "The little shrimp that could: phylogeography of the circumtropical Stenopus hispidus (Crustacea: Decapoda), reveals divergent Atlantic and Pacific lineages" PeerJ, v.6, 2018, p.. doi:10.7717/peerj.4409 Citation details  

Goetze, Erica and Hüdepohl, Patricia T. and Chang, Chantel and Van Woudenberg, Lauren and Iacchei, Matthew and Peijnenburg, Katja T.C.A. "Ecological dispersal barrier across the equatorial Atlantic in a migratory planktonic copepod" Progress in Oceanography, v.158, 2017, p.. doi:10.1016/j.pocean.2016.07.001 Citation details  

Iacchei, Matthew and Butcher, Elizabeth and Portner, Elan and Goetze, Erica "It's about time: Insights into temporal genetic patterns in oceanic zooplankton from biodiversity indices: Temporal genetic patterns in plankton" Limnology and Oceanography, v.62, 2017, p.. doi:10.1002/lno.10538 Citation details  

Selkoe, KA and D?Aloia, CC and Crandall, ED and Iacchei, M and Liggins, L and Puritz, JB and von der Heyden, S and Toonen, RJ "A decade of seascape genetics: contributions to basic and applied marine connectivity" Marine Ecology Progress Series, v.554, 2016, p.. doi:10.3354/meps11792 Citation details  

Bowen, Brian W. and Gaither, Michelle R. and DiBattista, Joseph D. and Iacchei, Matthew and Andrews, Kimberly R. and Grant, W. Stewart and Toonen, Robert J. and Briggs, John C. "Comparative phylogeography of the ocean planet" Proceedings of the National Academy of Sciences, v.113, 2016, p.. doi:10.1073/pnas.1602404113 Citation details  

Iacchei, Matthew and Gaither, Michelle R. and Bowen, Brian W. and Toonen, Robert J. "Testing dispersal limits in the sea: range-wide phylogeography of the pronghorn spiny lobster Panulirus penicillatus" Journal of Biogeography, v.43, 2016, p.. doi:10.1111/jbi.12689 Citation details  

Selkoe KA, D'Aloia CC, Crandall ED, Iacchei M, Liggins L, Puritz JB, von der Heyden S, and Toonen RJ "A decade of seascape genetics: contributions to basic and applied marine connectivity" Marine Ecology Progress Series, v.554, 2016, p.1-19. doi:10.3354/meps11792 

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