Krueger-Hadfield Lab
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Picture
Cover image of Agarophyton vermiculophyllum from Hakodate, Hokkaido, Japan (© SA Krueger-Hadfield) from Krueger-Hadfield et al. 2017 Ecology and Evolution
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Cover image of a tide pool in Hokkaido, Japan (top left image, © SA Krueger-Hadfield) from Krueger-Hadfield et al. 2020
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Cover image of Diadumene lineata (© WH Ryan) and Agarophyton vermiculophyllum (© SA Krueger-Hadfield) for the Journal of Heredity special issue Sex/Asex from Ryan et al. (2021), Krueger-Hadfield et al. 2021), Stoeckel et al. (2021), Orive and Krueger-Hadfield (2021)
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Cover image of Nereocystis leutkeana (© SA Krueger-Hadfield) for issue including Schroeder et al. (2023) and Krueger-Hadfield et al. (2023)
Refereed publications
* Undergraduate student; ** Graduate student; *** Postdoctoral Fellow; **** Staff coauthor; Corresponding author underlined
Peer reviewed publications
Completed entirely after appointment at Virginia Institute of Marine Science | William & Mary (6)
(80) Cassidy MM**, KM Schoenrock, G Rilov, SA Krueger-Hadfield (accepted) Galaxaura lessepsiana sp. nov. (Galaxauraceae,  Florideophyceae), a new species from Israel complicates Lessepsian migration paradigm for G. rugosa. Notulae Algarum

(79) Krueger-Hadfield, SA, G Bonthond, CMM Gachon, GM Kuba**, CE Lane, E Ruiz Martínez, J Brodie (2025, in press) Algal diseases and their intricate relationship with evolutionary ecology. In The Ecology and Evolution of Marine Parasites and Disease – Ecology and Evolution of Infectious Disease Series, Eds JE Byers, AMH Blakeslee, JWares) [refereed book chapter]

(78) Jeffries, D, C Benvenuto, A Böhne, C Fraisse, S Garcia, P Jay, L Kratochvíl, CE McDonough-Goldstein, A Ruiz-Herrera, CG Sotero-Caio, N Valenzuela, MA Wilson, Tree of Sex Consortium†, KS Jaron (2025, in press) The Tree of Sex consortium: A global initiative for studying the evolution of reproduction in eukaryotes. Journal of Evolutionary Biology https://doi.org/10.1093/jeb/voaf053 †I am a consortium member, edited the manuscript, and agreed on consortium authorship

(77) Fumo JT**, PK Nichols**, T Ely, PB Marko, AL Moran, BS Powell, TM Williams **, RK Kosaki, CM Smith, KH Lopes Jr., JE Smith, HL Spalding, SA Krueger-Hadfield, KJ McDermid, BB Hauk, J Morioka, K O’Brien, B Kennedy, F Leliaert, MT Fujii, WA Nelson, SGA Draisma, AR Sherwood (2025) A predictive framework for identifying source populations of non-native marine macroalgae: Chondria tumulosa in the Pacific Ocean. PeerJ 13: e19610

(76) Stancheva R, M Cantonati, K Manoylov, PC Furey, AB Cahoon, RC Jones, P Gillevet, CD Amsler, JD Wehr, JL Salerno, SA Krueger-Hadfield (2024) The importance of integrating phycological research, teaching, outreach, and engagement in a changing world. Journal of Phycology 60: 1335-1348.

(75) Krueger-Hadfield SA (2024) Let’s talk about sex: Why reproductive systems matter for understanding algae. (invited perspective) Journal of Phycology 60: 581-597. 
 
Begun elsewhere and completed at Virginia Institute of Marine Science | William & Mary (1)
(74) Ropartz D, A Lissarrague, M Jam, D Jouanneau, S Le Gall, B Annie, M Fanuel, SA Krueger-Hadfield, M Valero, M Czjek, H Rogniaux, C Hervé (2024) In-depth exploration of the extracellular matrix of the red alga Chondrus crispus reveals unprecedented insights into carrageenan structures. Carbohydrate Polymers 348: 122737.
 
Begun at University of Alabama at Birmingham and completed at Virginia Institute of Marine Science | William & Mary (12)
(73) Lipinska, AP, G Cossard, P Epperlein, T Woertwein, C Molinier, O Godfroy, S Carli, L Ayres-Ostrock, E Lavaut, F Marchi, S Mauger, C Destombe, MC Oliveira, EM Plastino, SA Krueger-Hadfield, ML Guillemin, M Valero, SM Coelho (accepted) Structural and evolutionary features of red algal UV sex chromosomes. Genome Biology

(72) Shainker-Connelly SJ**, S Stoeckel, ML Vis, SA Krueger-Hadfield (2025) Monoicy, dioicy, and selfing in three species of Sheathia (Batrachospermales, Rhodophyta). Journal of Phycology 61: 820-839.

(71) Shainker-Connelly SJ**, S Stoeckel, ML Vis, RM Crowell**, SA Krueger-Hadfield (2025) Seasonality and inter-annual stability in the population genetic structure of Batrachospermum gelatinosum (Rhodophyta). Journal of Phycology 61: 172-193.

(70) Mott A**, AMH Blakeslee, SA Krueger-Hadfield, AE Fowler (2025) Is macroinvertebrate habitat use indirectly driven by a non-native alga? Ecosphere 16: e70204.

(69) Heiser S**, CD Amsler, AJ Shilling**, HM Higginbotham*, MO Amsler, S Stoeckel, JB McClintock, BJ Baker, SA Krueger-Hadfield (2025) Linking phenotypic variation to patterns of genetic isolation along a speciation continuum. Journal of Phycology 61: 3-19.

(68) Lee TS**, AE Fowler, SA Krueger-Hadfield, C Gabriel, AMH Blakeslee (2025) Biogeographic patterns of invertebrate community diversity associated with an introduced alga. Aquatic Invasions 20: 127-151.

(67) Vis ML, GA Lindsey*, SJ Shainker-Connelly**, RM Crowell**, AP Oetterer**, BM Thornton**, SA Krueger-Hadfield (2025) Assessment of red macroalgal (Rhodophyta) diversity in Michigan, USA. The Journal of the Torrey Botanical Society 152: 38-56.

(66) Crowell RM**, SJ Shainker-Connelly**, SA Krueger-Hadfield, ML Vis (2024) Population genetics of the freshwater red alga Batrachospermum gelatinosum (Rhodophyta) II: Phylogeographic analyses reveal spatial genetic structure among and within five major drainage basins in Eastern North America. Journal of Phycology 60: 1437-1455.

(65) Shainker-Connelly SJ**, RM Crowell**, S Stoeckel, ML Vis, SA Krueger-Hadfield (2024) Population genetics of the freshwater red alga Batrachospermum gelatinosum (Rhodophyta) I: Frequent intragametophytic selfing in a monoicous, haploid-diploid species. Journal of Phycology 60: 1420-1436.

(64) Thornton BM**, HL Spalding, S Stoeckel, ML Harris, RM Wade, SA Krueger-Hadfield (2024) Clonality and polyploidy contribute to the spread of Avrainvillea lacerata (Bryopsidales, Chlorophyta) in Hawaiʻi. Journal of Phycology 60: 1371-1389.

(63) Matsumoto M*, C Hanneman*, AG Camara*, SA Krueger-Hadfield, TL Hamilton, RB Kodner (2024) Hypothesized life cycle of the snow alga Chlainomonas sp. (Chlamydomonadales, Chlorophyta) from the Cascade Mountains, USA. Journal of Phycology 60: 724-740.

(62) Crowell RM=**, SJ Shainker-Connelly=**, ML Vis, SA Krueger-Hadfield (2024) Microsatellite development in the freshwater red alga Batrachospermum gelatinosum (Batrachospermales, Rhodophyta). Cryptogamie Algologie 45: 53-62. = equal co-authors
 
Completed entirely at University of Alabama at Birmingham (40)
(61) Barloy D, L Portillo-Lemus**, SA Krueger-Hadfield, V Huteau, O Coriton (2024) Genomic relationships among diploid and polyploid species of the genus Ludwigia L. section Jussiaea using a combination of molecular cytogenetic, morphological, and crossing investigations. Peer Community Journal Section Evolutionary Biology 4: e8.   

(60) Williams TM**, SA Krueger-Hadfield, KM Hill-Spanik, RK Kosaki, S Stoeckel, HL Spalding (2024) The reproductive system of Chondria tumulosa (Florideophyceae) at Manawai Atoll, Papahānaumokuākea Marine National Monument. Phycologia 63: 36-44.

(59) Krueger-Hadfield SA, SJ Shainker-Connelly**, RM Crowell**, ML Vis (2024) The eco-evolutionary importance of reproductive system variation in the macroalgae: Freshwater reds as a case study. Journal of Phycology 60: 15-25.

(58) Schroeder DC, KM Schoenrock, TA McHugh, J Ray, SA Krueger-Hadfield (2023) Phaeovirus found in recovering Nereocystics leutkeana kelp forest community. Journal of Phycology 59: 818-821.

(57) van Hees D, C Hanneman*, S Paradis*, A Camara*, M Matsumoto*, T Hamilton, SA Krueger-Hadfield, R Kodner (2023) Patchy and Pink: dynamics of a Chlainomonas sp. (Chalmydomonadales, Chlorophyta) algal bloom on Bagley Lake, North Cascades, WA. FEMS Microbiology Ecology 99: fiad106.
(56) Borg M, SA Krueger-Hadfield, C Destombe, J Collén, A Lipinska, SM Coelho (2023) Red algae in the genomic era. New Phytologist 240: 471-488.

(55) Lipinska AP=, SA Krueger-Hadfield=, O Godfory, S Dittami, L Ayres-Ostrock, G Bonthond, S Coelho, E Corre, G Cossard, C Destombe, S Faugeron, E Ficko-Blean, V Flores, L Guéguen, E Lavaut, A Le Bars, F Marchi, S Mauger, G Michel, P Potin, D Scornet, EE Sotka, F Weinberger, M de Oliveira, ML Guillemin, E Plastino, M Valero (2023) The Rhodoexplorer Platform for red algal genomics and whole-genome assemblies for several Gracilaria species. Genome Biology and Evolution 15: evad124. = equal co-authors

(54) Vranken S=**, M Robuchon=, S Dekeyzer, I Bárbara, I Bartsch, A Blanfuné, C-F Bourdouresque, W Decock, C Destombe, B de Reviers, P Díaz-Tapia, A Herbst, R Julliard, R Karez, P Kersen, SA Krueger-Hadfield, R Kuhlenkamp, AF Peters, V Peña, C Piñero-Corbiera, F Rindi, F Rousseau, J Rueness, H Schubert, K Sjøtun, M Sansón, D Smale, T Thibaut, M Valero, L Vandepitte, B Vanhoorne, A Vergés, M Verlaque, C Vieira, L Le Gall, F Leliaert, O De Clerck (2023) AlgaeTraits: a trait database for (European) seaweeds. Earth System Science Data 15: 2711-2754. = equal co-authors

(53) Heiser S**, CD Amsler, S Stoeckel, JB McClintock, BJ Baker, SA Krueger-Hadfield (2023) Tetrasporophytic bias coupled with heterozygote deficiency in the Antarctic Plocamium sp. (Florideophyceae, Rhodophyta). Journal of Phycology 59:681-697.

(52) Heiser S**, CD Amsler, SA Krueger-Hadfield (2023) Microsatellite locus development in the seaweed Plocamium sp. Antarctic Science 35:43-45.

(51) Bonthond G**, AK Neu, T Bayer, SA Krueger-Hadfield, S Künzel, F Weinberger (2023) Non-native hosts of an invasive seaweed holobiont have more stable microbial communities compared to native hosts in response to thermal stress. Ecology and Evolution 13: e9753.

(50) Xiang JX, M Saha, KL Zhong, QS Zhang, D Zhang, A Jueterbock, SA Krueger-Hadfield, GG Wang, F Weinberger, ZM Hu (2023) Genome-scale signatures of adaptive gene expression changes in an invasive seaweed Gracilaria vermiculophylla. Molecular Ecology 32: 613-627.

(49) Schilling MD**, SA Krueger-Hadfield, JB McClintock (2022) Genetic evidence supports species delimitation of Luidia in the northern Gulf of Mexico. The Biological Bulletin 243: 28-37.

(48) Mott AW**, SA Krueger-Hadfield, AMH Blakeslee, AE Fowler (2022) Native tube-building polychaete prefers to anchor non-native algae over other macrophytes. Oecologia 198: 967-980.

(47) Bonthond G**, A Barilo**, R Allen***, M Cunliffe, SA Krueger-Hadfield (2022) Fungal endophytes vary by species, tissue type, and life cycle stage in intertidal macroalgae. Journal of Phycology 58: 330-342.

(46) Albecker MA=***, LGE Wilkins=***, SA Krueger-Hadfield, SM Bashevkin, MW Hahn, MP Hare, H Kindsvater, MA Sewell, K Lotterhos, AM Reitzel (2021) Does a complex life cycle promote or constrain adaptation to environmental change? Genome-informed approaches and insights for characterizing selection across stages of a life cycle. Proceedings of the Royal Society B: Biological Sciences 288: 20212122. = equal co-authors

(45) Krueger-Hadfield SA, JE Byers, G Bonthond**, R Terada, F Weinberger, EE Sotka (2021) Intraspecific diversity and genetic structure in the widespread macroalga Gracilaria vermiculophylla. Journal of Phycology 57: 1403-1410.

(44) Jawad W**, SA Krueger-Hadfield, PG Ross (2021) A subtropical nudibranch, Polycera hummi (Abbott 1952), described for the first time from Virginia. Northeastern Naturalist 28: N15-N23.

(43) Bonthond G**, T Bayer, SA Krueger-Hadfield, N Stärk, G Wang, M Nakaoka, S Künzel, F Weinberger (2021) Increased host promiscuity may have promoted invasiveness of a macroalgal holobiont. ISME J 15: 1668-1679.

(42) Cahill R*, SA Krueger-Hadfield, WH Ryan (2021) The effects of stress on the bacterial community associated with the sea anemone Diadumene lineata. Journal of Emerging Investigators 3: 1-7. (Cahill was a high school senior)

(41) Ryan WH***, J Aida*, SA Krueger-Hadfield (2021) The contribution of clonality to population genetic structure in the sea anemone Diadumene lineata. Journal of Heredity 112: 122-139.

(40) Krueger-Hadfield SA, ML Guillemin, C Destombe, M Valero, S Stoeckel (2021) Exploring the genetic consequences of clonality in haplodiplontic taxa. Journal of Heredity 112: 92-107.

(39) Stoeckel S, S Arnaud-Haond, SA Krueger-Hadfield (2021) The combined effect of haplodiplonty and partial clonality in population genetics. Journal of Heredity 112: 78-91.

(38) Orive ME, SA Krueger-Hadfield (2021) Sex and asex: a clonal lexicon. Journal of Heredity 112: 1-8.

(37) Schoenrock KM, T McHugh, SA Krueger-Hadfield (2021) Revisiting the ‘bank of microscopic forms’ in macroalgal-dominated ecosystems. Journal of Phycology 57: 14-29.

(36) McCoy SJ, SA Krueger-Hadfield, N Mieszkowska (2020) Towards a macroalgal species conceptual framework. Journal of Phycology 56: 1404-1413.

(35) Krueger-Hadfield SA, WH Ryan*** (2020) Influence of nutrients on ploidy-specific performance in a haplodiplontic red macroalga. Journal of Phycology 56: 1114-1120.

(34) Schoenrock KM, KM Chan, T O’Callaghan, R O’Callaghan, A Golden, SA Krueger-Hadfield, AM Power (2020) A review of subtotal kelp forests in Ireland: from first descriptions to new habitat monitoring techniques. Ecology and Evolution 10: 6819-6832.

(33) Lipinska A, J Collén, SA Krueger-Hadfield, T Mora, E Ficko-Blean (2020) To gel or not gel: Differential gene expression of carrageenan-related genes between the gametophyte and tetrasporophyte life cycle stages of the red alga Chondrus crispus. Scientific Reports 10: 11498.

(32) Bonthond G**, T Bayer, SA Krueger-Hadfield, FR Barboza, M Nakaoka, M Valero, G Wang, S Künzel, and F Weinberger (2020) Ho do microbiota associated with an invasive seaweed vary across scales? Molecular Ecology 29: 2094-2108.

(31) Schoenrock KM=, A O’Connor=*, S Mauger, J Neiva, E Serrão, M Valero, SA Krueger-Hadfield (2020) Genetic diversity of a marine foundation species, Laminaria hyperborea (Gunnerus) Foslie, along the coast of Ireland. European Journal of Phycology 55: 310-326. = equal co-authors

(30) Olsen KC, WH Ryan***, AA Winn, ET Kosman, JA Moscoso, SA Krueger-Hadfield, SC Burgess, DB Carlon, RK Grosberg, S Kalisz, DR Levitan (2020) Inbreeding shapes the evolution of marine invertebrates. Evolution 74: 871-882.

(29) Krueger-Hadfield SA (2020) What’s ploidy got to do with it? Understanding the evolutionary ecology of macroalgal invasions necessitates incorporating life cycle complexity. Evolutionary Applications 13: 486-499.

(28) Krueger-Hadfield SA, AMH Blakeslee, AE Fowler (2019) Incorporating ploidy diversity into ecological and community genetics. Journal of Phycology 55: 1198-1207.

(27) Ryan WH***, L Adams, G Bonthond**, N Mieszkowska, KE Pack, SA Krueger-Hadfield (2019) Environmental regulation of individual body size contributes to geographic variation in clonal life cycle expression. Marine Biology 166: 157.

(26) Ryan WH***, S Heiser**, MD Curtis**, CD Amsler, T Bayer, G Bonthond, G Wang, F Weinberger, SA Krueger-Hadfield (2019) The use of photographic color information for high-throughput phenotypic of pigment concentration in Agarophyton vermiculophyllum. Cryptogamie Algologie 40: 73-83.

(25) Marin-Felix Y, M Hernández-Restrepo I Iturrieta-González, D García, J Gené, JZ Groenewald, L Cai, Q Chen, W Quaedvlieg, RK Schumacher, PWJ Taylor, C Ambers, G Bonthond**, J Edwards, SA Krueger-Hadfield, JJ Luangsaard, L Morton, A Moslemi, M Sandoval-Denis, YP Tan, R Thangavel, N Vaghefi, R Cheewangkoon, PW Crous (2019) Genera of phytopathogenic fungi: GOPHY 3. Studies in Mycology 94: 1-124.

(24) Schoenrock KM, T O’Callaghan, R O’Callaghan, SA Krueger-Hadfield (2019) First record of Laminaria ochroleuca Bachelot de la Pylaie in Ireland in Béal an Mhuirthead, County Mayo. Marine Biodiversity Records 12: 9.

(23) Krueger-Hadfield SA, TA Stephens, WH Ryan***, S Heiser** (2018) Everywhere you look, everywhere you go, there’s another non-native estuary with the widespread invader Gracilaria vermiculophylla. BioInvasion Records 7: 343-355.

(22) Krueger-Hadfield SA, G Hernández Carmona, R Terada, JM López-Vivas, R Riosmena-Rodríguez (2016) New record of the non-native seaweed Gracilaria parvispora in Baja California – a note on Vergara-Rodarte et al., (2016). Cryptogamie Algologie 37: 257-263.
 
Begun elsewhere and completed at University of Alabama at Birmingham (11)
(21) Krueger-Hadfield SA, AP Oetterer**, LE Lees*, JM Hoffman, EE Sotka, CJ Murren (2023) Phenology in a free-floating, non-native Gracilaria vermiculophylla population: ploidy ratios, reproductive state, and thallus size. Journal of Phycology 59: 926-938.

(20) Murren CJ, SA Krueger-Hadfield, A Clark, BA Flanagan**, LE Lees*, EE Sotka (2022) Individuals from non-native populations are stronger and bigger than individuals from native populations of a widespread seaweed. Biological Invasions 24: 2169-2180.

(19) Flanagan BA**, SA Krueger-Hadfield, CJ Murren, CC Nice, AE Strand, EE Sotka (2021) Founder effects shape linkage disequilibrium and genomic diversity of a partially clonal invader. Molecular Ecology 30: 1962-1978.

(18) Krueger-Hadfield SA, BA Flanagan**, O Godfroy, KM Hill-Spanik, CC Nice, CJ Murren, AE Strand, EE Sotka (2021) Using RAD-seq to develop sex-linked markers in a haplodiplontic alga. Journal of Phycology 57: 279-294.

(17) Lees LE*=, SA Krueger-Hadfield=, AJ Clark, EA Duermit, EE Sotka, CJ Murren (2018) Non-native Gracilaria vermiculophylla tetrasporophytes are more difficult to debranch and are less nutritious than gametophytes. Journal of Phycology 54: 471-482. = equal co-authors

(16) Sotka EE, AW Baumgardner*, PM Bippus*, C Destombe, EA Duermit, H Endo, BA Flanagan**, M Kamiya, LE Lees*, CJ Murren, M Nakaoka, SJ Shainker*, AE Strand, R Terada, M Valero, F Weinberger, SA Krueger-Hadfield (2018) Combining niche shift and population genetic analyses predicts rapid phenotypic evolution during invasion. Evolutionary Applications 11: 781-793.

(15) Bippus P*, SA Krueger-Hadfield, EE Sotka (2018) Generalist herbivore species differentially respond to an introduced seaweed: the case of Gracilaria vermiculophylla. Marine Biology 165: 39.

(14) Krueger-Hadfield SA, CA Magill, N Mieszkowska, EE Sotka, CA Maggs (2017) When invaders go unnoticed: the case of Gracilaria vermiculophylla in the British Isles. Cryptogamie Algologie 38: 379-400.

(13) Wang S**, F Weinberger, L Xiao, M Nakaoka, G Wang, SA Krueger-Hadfield, EE Sotka, D Bian, M Lenz (2017) In situ common garden assays demonstrate increased defense against natural fouling in non-native populations of the red seaweed Gracilaria vermiculophylla.  Marine Biology 164: 193.

(12) Krueger-Hadfield SA, NM Kollars, AE Strand, JE Byers, SJ Shainker*, R Terada, TW Greig, M Hammann**, DC Murray, F Weinberger, EE Sotka (2017) Genetic identification of source and likely vector of a widespread marine invader. Ecology and Evolution 7: 4432-4447.

(11) Dudgeon SR, JE Kübler, JA West, M Kamiya, SA Krueger-Hadfield (2017) Asexuality and the cryptic species problem. Perspectives in Phycology 4: 47-59.
 
Prior to appointment as Assistant Professor at University of Alabama at Birmingham (10)
(10) Gerstenmaier CE**, SA Krueger-Hadfield, EE Sotka (2016) Genetic diversity increases primary productivity within a non-native seaweed population. Marine Ecology Progress Series 556: 79-89.

(9) Krueger-Hadfield SA, NM Kollars**, JE Byers, TW Greig, M Hamman**, D Murray, CJ Murren, AE Strand, R Terada, F Weinberger, EE Sotka (2016) Invasion of novel habitats uncouples haplo-diplontic life cycles. Molecular Ecology 25: 3801-3816.

(8) Krueger-Hadfield SA, S Hoban (2016) The importance of effective sampling for exploring the population dynamics of haploid-diploid seaweeds. Journal of Phycology 52: 1-9.

(7) Kollars NM=**, SA Krueger-Hadfield=, JE Byers, TW Greig, AE Strand, F Weinberger, EE Sotka (2015) Development of microsatellite loci for the invasive red seaweed Gracilaria vermiculophylla. PeerJ 3: e1159. = equal co-authors

(6) Krueger-Hadfield SA, D Roze, C Destombe, J Correa, M Valero (2015) O father, where art thou?  Paternity analyses in a natural population of the red seaweed Chondrus crispus. Heredity 114: 185–194.

(5) Krueger-Hadfield SA=, C Balestreri=**, JL Schroeder=***, AC Highfield, P Hélaouët, J Allum, R Moate, KT Lohbeck, U Riebesell, TBH Reusch, REM Rickaby, J Young, C Brownlee, DC Schroeder (2014) Genotyping an Emiliania huxleyi (Prymnesiophyceae) bloom event in the North Sea reveals evidence of asexual reproduction.  Biogeosciences 11: 5215-5234. = equal co-author         

(4) Krueger-Hadfield SA, D Roze, S Mauger, M Valero (2013) Intergametophytic selfing and microgeographic genetic structure shape populations of the intertidal red seaweed Chondrus crispus.  Molecular Ecology 222: 3242-3260.

(3) Krueger-Hadfield SA, JE Kübler, SR Dudgeon (2013) Reproductive effort in the red alga, Mastocarpus papillatus.  Journal of Phycology 49: 271-281.

(2) Krueger-Hadfield SA, J Collén, C Daguin-Thiébaut, M Valero (2011) Distinguishing among genets and genetic population structure in the haploid-diploid seaweed Chondrus crispus (Rhodophyta). Journal of Phycology 47: 440-450.

(1) Dudgeon SR, KM Benes, SA Krueger, J Kübler, P Mroz, C Slaughter (2009) On the use of experimental diets for physiological studies of hydrozoans.  Journal of the Marine Biological Association of the United Kingdom 89: 83-88. 

Editor reviewed publications
Completed entirely at University of Alabama at Birmingham (1)
(2) Collado-Vides L, B Van Tussenbroek, M Garcia, R Rodríguez-Martínez, V Cassano, MC Oliviera, M Toyota-Fuji, H Oxenford, SA Krueger-Hadfield (2019) A network to develop a taxonomic, monitoring, and citizen’s participation program for Sargassum landings in Florida, Mexico, Barbados, and Brazil. Proceedings of the 71st Gulf and Caribbean Fishers Institute pp. 319-324
 
Prior to appointment as Assistant Professor at University of Alabama at Birmingham (1)
(1) Collèn J, ML Cornish, J Craigie, E Ficko-Bean, C Hervé, SA Krueger-Hadfield, C Leblanc, G Michel, P Potin, T Tonon and C Boyen (2014) Chondrus crispus – a present and historical model organism for red seaweeds. pp 53-89 In: Advances in Botanical Research, Volume 71: Sea Plants, ed N Bourgougnon, Elsevier.

Preprints not yet published
Oetterer AP**, S Stoeckel, WH Ryan***, SA Krueger-Hadfield (2025) Reproductive system variation in fixed and free-living Gracilaria vermiculophylla populations. bioRxiv 2025.06.19.660572; doi: https://doi.org/10.1101/2025.06.19.660572 [in review Journal of Phycology]

Krueger-Hadfield SA, AP Oetterer**, DM Kelley****, WH Ryan*** (2025) The hard and soft of it: the role of subsrate in patterns of phase dominance and phenology in Gracilaria vermiculophylla. bioRxiv 2025.06.17.660238; doi: https://doi.org/10.1101/2024.12.05.626989 [in review Journal of Phycology]

Lipinska, AP, G Cossard, P Epperlein, T Woertwein, C Molinier, O Godfroy, S Carli, L Ayres-Ostrock, E Lavaut, F Marchi, S Mauger, C Destombe, MC Oliveira, EM Plastino, SA Krueger-Hadfield, ML Guillemin, M Valero, SM Coelho (2024) Structural and evolutionary features of red algal UV sex chromosomes. bioRxiv 2024.12.05.626989; doi: https://doi.org/10.1101/2024.12.05.626989 [in review Genome Biology]


Theses
(4) Krueger-Hadfield SA (2011) Adaptacion local y cambio global en el ambiente intermareal: variacion del ciclo de vida, interacciones duraderas y recursos geneticos en el alga roja Chondrus crispus. PhD dissertation, Pontificia Universidad Católica de Chile, 357 pp.

(3) Krueger-Hadfield SA (2011) Structure des populations chez l’algue rouge haploid-diploïde Chondrus crispus: système de reproduction, différeciation génétique et épidémiologie.  PhD dissertation. Université de Pierre et Marie Curie - Sorbonne Université, 357 pp.

(2) Krueger SA (2008) Geographic parthenogenesis in complex life cycles: an empirical test of current theory in the red alga Mastocarpus papillatus. MS Thesis, California State University Northridge, 91 pp.

(1) Krueger SA (2006) Morphological plasticity in response to shear force in the hydrozoan Hydractinia symbiolongicarpus. Senior Honors Thesis, California State University Northridge, 21 pp.

Software and protocols
Software
Prior to appointment at University of Alabama at Birmingham (1)
Kamvar ZN [cre, aut], JF Tabima [aut], SE Everhart [ctb, dtc], JC Brooks [aut], SA Krueger-Hadfield [ctb], EE Sotka [ctb], BJ Knaus [ctb], NJ Grunwald [ths]. R package ‘poppr’ (>225,000 downloads since 2013 from CRAN, does not include non-RStudio CRAN mirrors or installations from GitHub so an underestimate of total downloads)
 
Protocols
Completed entirely at University of Alabama at Birmingham (1)
Besnard, A-L, DJ Park, BJ Pope, F Hammet, S Michon-Coudouel, M Biget, SA Krueger-Hadfield, S Mauger, EJ Petit (2023) Workflow for SNP genotyping using the Hi-Plex method. protocols.io https://dx.doi.org/10.17504/protocols.io.8epv5jnnnl1b/v2


The Molecular Ecologist
Podcast
(4) Krueger-Hadfield SA, K Freel, R DeKayne, JB Yoder(2021) The Molecular Ecologist Podcast: Darwin day, a glow-in-the-dark phylogeny, and pandemic PopGroup
(3) Krueger-Hadfield SA, RS Abrams, JB Yoder (2020) The Molecular Ecologist Podcast: Science and scholarship in the pandemic year
(2) Denton RD, SA Krueger-Hadfield, JB Yoder (2020) The Molecular Ecologist Podcast: A #NewPI chat about teaching, both before and after COVID
(1) Krueger-Hadfield SA, S Heiser, K Freel, RS Abrams, JB Yoder (2020) The Molecular Ecologist Podcast: #StudentSciComm, diversity within an algae bloom, the origins of a vital mutualism, and population genetics in continuous space
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Blogs
(90) Krueger-Hadfield SA (2021) An enduring evolutionary mystery - the consequences of sex are shaped by more than sex itself
(89) Krueger-Hadfield SA (2021) Darwin Day – Integrating research and medicine to respond to the pandemic
(88)  Krueger-Hadfield SA (2020) Fieldwork in the time of COVID
(87) Krueger-Hadfield SA (2020) The spirit of Antarctic invasions future? 
(86) Denton RD, JB Yoder, SA Krueger-Hadfield (2020) #NewPI Chat: Headed for Lockdown Edition
(85) Krueger-Hadfield SA (2020) #StudentSciComm
(84) Krueger-Hadfield SA (2019) Conference catch-up: Seventh European Phycological Congress Zagreb, Croatia - algae and  
abominable life cycles!

(83) Krueger-Hadfield SA, R Brennan, Laetitia Wilkins (2019) The Research Coordinated Network for Evolution in Changing Seas (RCN-ECS)
(82) Krueger-Hadfield SA (2018) Conference catch-up: The many colors of snow
(81) Krueger-Hadfield SA​ (2018) To present data is human, to communicate date is divine
(80) Krueger-Hadfield SA  (2018) La vie en rouge ... l'algue rouge
(79) Krueger-Hadfield SA  (2018) Oh my ploidy ... diploids evolve faster than haploids?
(78) Yoder, J, A Sethumaran, SA Krueger-Hadfield (2018) #NewPI chat: Third (or maybe fourth) time’s the charm edition
(77) Yoder, J, A Sethumaran, SA Krueger-Hadfield (2017) TME Chat: That #NewPI life
(76) Krueger-Hadfield SA  (2017) #Evol 2017 catchup - or remember that time someone stole your field gear?
(75) Krueger-Hadfield SA  (2017) Live from #Evol2017, Sunday Highlights (and a smidge of Saturday too!)
(74) Krueger-Hadfield SA (2017) Different ways to have sex, yet still be a weed 
(73) Krueger-Hadfield SA (2017) Polyploidy in the era of GBS 
(72) Krueger-Hadfield SA (2017) Deep in the meadow, under the ... seagrass, a bed of temporally stable diversity?  
(71) Krueger-Hadfield SA (2017) I think we're NOT alone now. 
(70) Krueger-Hadfield SA (2016) Artificial connectivity ... have we overlooked the native range? 
(69) Krueger-Hadfield SA (2016) Humans, selection, evolution and ecological timescale...a potent cocktail 
(68) Krueger-Hadfield SA (2016) Building bridges across the chaos 
(67) Krueger-Hadfield SA (2016) Is equilibrium out of reach or are there some sneaky bouts of sex? 
(66) Krueger-Hadfield SA (2016) What do dolphins, bivalves and algae have in common? 
(65) Krueger-Hadfield SA (2016) Personal narrative of a journey from zoos to academia 
(64) Krueger-Hadfield SA (2016) The not so singular process of hybridization
(63) Krueger-Hadfield SA (2016) Signatures of the reproductive lottery 
(62) Krueger-Hadfield SA (2016) Neglected mycoplankton, no more 
(61) Krueger-Hadfield SA (2016) What makes a range? 
(60) Krueger-Hadfield SA (2016) Coral clonal chimeras  
(59) Krueger-Hadfield SA (2016) There and back again: an angiosperm's tale  
(58) Krueger-Hadfield SA (2016) A race to the bottom with a new card from the coevolutionary deck 
(57) Krueger-Hadfield SA (2016) Macroalgal miscellany  
(56) Krueger-Hadfield SA (2016) An evolutionary cycle ... 
(55) Krueger-Hadfield SA (2015) Lonesome George no longer?  
(54) Krueger-Hadfield SA (2015) Gracilaria, currywurst and aebleskivers 
(53) Krueger-Hadfield SA (2015) An Oedipus complex in mosses? 
(52) Krueger-Hadfield SA (2015) Pre-adpated algal ancestors colonized land
(51) Krueger-Hadfield SA (2015) Best laid plans of algae and academics oft go astray 
(50) Krueger-Hadfield SA (2015) The scent of home 
(49) Krueger-Hadfield SA (2015) Bees brought to their knees
(48) Krueger-Hadfield SA (2015) What's a Wachapreague?  
(47) Krueger-Hadfield SA (2015) Keeping up with the kelps
(46) Krueger-Hadfield SA (2015) A Nice opinion on confronting uncertainty and modeling it for GBS data 
(45) Krueger-Hadfield SA (2015) The final estuaries 
(44) Krueger-Hadfield SA (2015) Three Views of Japan
(43) Krueger-Hadfield SA (2015) Along the Mackerel Road
(42) Krueger-Hadfield SA (2015) An unspoiled frontier
(41) Krueger-Hadfield SA (2015) In the northern biosphere
(40) Krueger-Hadfield SA (2015) Algae bring life to the world - marine forests and domestication 
(39) Krueger-Hadfield SA (2015) Algae bring life to the world - species, microbiomes and biodiversity
(38) Krueger-Hadfield SA (2015) Home
(37) Krueger-Hadfield SA (2015) marmap
(36) Krueger-Hadfield SA (2015) Dōmo arigatō
(35) Krueger-Hadfield SA (2015) A cladoceran invasion
(34) Krueger-Hadfield SA (2015) Easy as ABC 
(33) Krueger-Hadfield SA (2015) When genomes duplicate
(32) Krueger-Hadfield SA (2015) Sous les mers: cradles or museums of biodiversity? 
(31) Krueger-Hadfield SA (2015) Grasping gorgonians 
(30) Krueger-Hadfield SA (2015) Clonal conundrum, part deux
(29) Krueger-Hadfield SA (2015) Clonal conundrum, part un
(28) Krueger-Hadfield SA (2015) The brand new world of environmental genomics
(27) Krueger-Hadfield SA (2015) Gorillas (genomes) in the mist
(26) Krueger-Hadfield SA (2015) The fickleness of P
(25) Krueger-Hadfield SA (2015) l'oliva di mare: disturbance and genetic diversity 
(24) Krueger-Hadfield SA (2015) Haploid-diploidy, a (brief?) history 
(23) Krueger-Hadfield SA (2015) British fineSTRUCTURE
(22) Krueger-Hadfield SA (2015) To sequence a genome or not to sequence a genome, that is the question
(21) Krueger-Hadfield SA (2015) Mating systems
(20) Krueger-Hadfield SA (2015) sedaDNA sleuths: embracing your inner Sherlock
(19) Krueger-Hadfield SA (2015) Just like an elephant and a manatee
(18) Krueger-Hadfield SA (2015) Show me the power 
(17) Krueger-Hadfield SA (2015) Interspecific gene flow enhances vectorial capacity
(16) Krueger-Hadfield SA (2015) Beauty is in the eyes of the beholder  
(15) Krueger-Hadfield SA (2015) Rescue Me 
(14) Krueger-Hadfield SA (2015) Night at the museum
(13) Krueger-Hadfield SA (2015) From crocodiles to coconuts
(12) Krueger-Hadfield SA (2015) The paludicolous life: peatmosses and pH
(11) Krueger-Hadfield SA (2015) Sex chromosome evolution ... in haploids, that is
(10) Krueger-Hadfield SA (2015) A population genetic R-evolution
(9) Krueger-Hadfield SA (2015) Species and sensibility 
(8) Krueger-Hadfield SA (2014) Not everyone likes it hot ... winter or not
(7) Krueger-Hadfield SA (2014) haploidy, diploidy, polyploidy ... not a problem
(6) Krueger-Hadfield SA (2014) Totally RAD
(5) Krueger-Hadfield SA (2014) Exotic gene flow surveillance
(4) Krueger-Hadfield SA (2014) Caught sweeping 'cross the sea
(3) Krueger-Hadfield SA (2014) The latest gadget for the molecular ecologist's toolkit
(2) Krueger-Hadfield SA (2014) The forest resounding at rare intervals with the note of ... reproductive isolation
(1) Krueger-Hadfield SA (2014) Happy as a clam despite genetic uniformity

The AGA Blog

(5) AGA Team [Krueger-Hadfield SA] (2021) Happy Holidays
(4) Krueger-Hadfield SA (2021) A ‘Cen-sational’ Post
(3) Krueger-Hadfield SA (2021) Behind the science: the fellowship of haplodiplontic taxa
(2) Krueger-Hadfield SA (2020) An ode to mudosphere
(1) Krueger-Hadfield SA (2020) Happy Darwin Day 2020!

Technical Reports

Completed entirely after appointment at Virginia Institute of Marine Science | William & Mary (1)
(9) Krueger-Hadfield SA, PG Ross**** (2025) Chapter 8. Macroalgae. pp. 50-61. In [Eds. PG Ross & RA Snyder] Ecological Monitoring Program at VIMS ESL Annual Report 2024. VIMS Eastern Shore Laboratory Technical Report No. 13 Virginia Institute of Marine Science, William & Mary.  https://doi.org/10.25773/BJQ0-VT61
 
Begun at University of Alabama at Birmingham and completed at Virginia Institute of Marine Science | William & Mary (1)
(8) Krueger-Hadfield SA, PG Ross**** (2024) Chapter 8. Macroalgae. pp. 64-77. In [Eds. PG Ross & RA Snyder] Ecological Monitoring Program at VIMS ESL Annual Report 2023. VIMS Eastern Shore Laboratory Technical Report No. 12 Virginia Institute of Marine Science, William & Mary. https://doi.org/10.25773/kdzb-6n07
 
Completed entirely at University of Alabama at Birmingham (7)
(7) Krueger-Hadfield SA, PG Ross (2023) Chapter 8. Macroalgae. pp. 70-85. In [Eds. PG Ross & RA Snyder] Ecological Monitoring Program at VIMS ESL Annual Report 2022. VIMS Eastern Shore Laboratory Technical Report No. 11 Virginia Institute of Marine Science, William & Mary. https://doi.org/10.25773/pc3t-me16

(6) Krueger-Hadfield SA, PG Ross (2022) Chapter 8. Macroalgae: Intertidal Mapping. pp. 71-87. In [Eds. PG Ross & RA Snyder] Ecological Monitoring Program at VIMS ESL Annual Report 2021. VIMS Eastern Shore Laboratory Technical Report No. 9 Virginia Institute of Marine Science, William & Mary. https://doi.org/10.25773/evhr-a810

(5) Snyder RA, G Bonthond, RT Smith, D Kelley, W Hamilton IV, MR Crowley, SA Krueger-Hadfield (2022) Chapter 7. Biofilms. pp. 53-70. In [Eds. PG Ross & RA Snyder] Ecological Monitoring Program at VIMS ESL Annual Report 2021. VIMS Eastern Shore Laboratory Technical Report No. 9 Virginia Institute of Marine Science, William & Mary. https://doi.org/10.25773/evhr-a810

(4) Schoenrock K, S Krueger-Hadfield, K Chan, R O’Callaghan, T O’Callaghan, A Golden, AM Power (2021) The diversity and resilience of kelp ecosystems in Ireland (2018-W-MS-35). EPA Research Report. 74 pp.

(3) Snyder RA, C Bentley, SA Krueger-Hadfield, G Bonthond (2021) Chapter 3. Biofilm Community. pp. 19-31. In [Eds. PG Ross & RA Snyder] Ecological Monitoring Program at VIMS ESL Annual Report 2020 VIMS Eastern Shore Laboratory Technical Report No. 8 Virginia Institute of Marine Science, William & Mary. https://doi.org/10.25773/3a2z-ek23

(2) Lucas K, R Blaylock, S Howden, M Capron, J Stewart, M Chambers, S James, M Brooks, S Krueger-Hadfield, S Fredericq, B Lapointe, A N’Yuert, R Radulovich, A Buschmann-Rubio, S DiMarco, K Whilden, T Knap, MH Kim, C Webb, A Mestas-Nunez, R Swift, Z Moscicki, I Tsukrov, D Fredriksson, T Dewhurst, A Drach, S Rope (2019) AdjustaDepth Phase 1 Final Report DE-AR0000916 - Feed the world on the way to abundant biofuels
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(1) Lucas K, R Blaylock, S Howden, M Capron, J Stewart, M Chambers, S James, M Brooks, S Krueger-Hadfield, S Fredericq, B Lapointe, A N’Yuert, R Radulovich, A Buschmann-Rubio, S DiMarco, K Whilden, T Knap, MH Kim, C Webb, A Mestas-Nunez, R Swift, Z Moscicki, I Tsukrov, D Fredriksson, T Dewhurst, A Drach, S Rope (2019) AdjustaDepth TechnoEconomic Analysis for ARPA-E Phase 1 Contract DE-AR0000916 (xlsx file)
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Select miscellaneous writings
(26) Bolnick D, SA Krueger-Hadfield, A Cramer, J Pringle (2022) Collaboration: A How-to Guide. Eco-evolutionary dynamics 
(25) Krueger-Hadfield SA (2021) A Scroll of a Sampling Sort Phycological Newsletter 57​: 9-10 (Winter/Spring 2021)
(24) Krueger-Hadfield SA (2020) Eclogae Phycological Newsletter 56: 2 (Summer/Fall 2020)
(23) Schoenrock K, K Chan, S Krueger-Hadfield, A Golden, AM Power (2020) Kelp forests: the multifaceted seaweed in nearshore marine habitats. Inshore Ireland Winter 2019/2020 pp. 6-7.
(22) Krueger-Hadfield SA (2019) An interview with Lang Fellow Stacy Krueger-Hadfield. Phycological Newsletter 55: 2 (Summer/Fall 2019)
(21) Krueger-Hadfield SA, WH Ryan, G Bonthond, J DeForest, CG Hays, L Adams, KE Pack, N Mieszkowska (2019) Subtle differentiation maintains haplodiplontic life cycles … until it doesn’t. European Journal of Phycology 54 Supp1: 103-104 (oral)
(20) O’Connor A, KM Schoenrock, SA Krueger-Hadfield (2019) A study in ochre: genetic diversity of Laminaria hyperborea forests along the Irish coastline. European Journal of Phycology 54 Supp1: 222 (poster)
(19) Heiser S, CD Amsler, MO Amsler, JB McClintock, SA Krueger-Hadfield, BJ Baker (2019) Potential mechanisms driving the geographic distribution pattern of secodary metabolites in the highly chemically-defended red seaweed Plocamium “cartilagineum.” European Journal of Phycology 54 Supp1: 104-105 (oral)
(18) Bonthond G, SA Krueger-Hadfield, FR Barboza, M Nakaoka, M Valero, G Wang, T Bayer, F Weinberger (2019) Microbial communities associated to an invasive seaweed and how they vary across ecological scales. European Journal of Phycology 54 Supp1: 35 (oral) 
​(17) Krueger-Hadfield SA  (2018) Tracking Tidlen’s Travels. Phycological Newsletter 54: 2 (Summer/Fall 2018)
(16) Capron ME, Blaylock R, Lucas K, Chambers M, Stewart J, DiMarco S, Whilden K, Wang B, Kim M, Moscicki Z, Sullivan C, Tsukrov I, Swift M, James S, Brooks M, Krueger-Hadfield S, N’Yeurt A, Howden S, Fredericq S, Piper D (2018) Ocean Forests: Breakthrough yields for macroalgae. OCEANS 2018/MTS/IEEE Charleston DOI:10.1109/OCEANS.2018.8604586
(15) Krueger-Hadfield SA (2018) To present science is human, to communicate science is divine The Marine Biologist Fall 2018 11: 30-31
(14) Krueger-Hadfield SA (2018) Flora marina Antarctica: patrimonio de biodiversidad Iván Gómez Ocampo Ediciones Kultrún, Valdivia, Chile, 2015. ISBN: 978-956-344-058-4, 243 pp. Antarctic Science 30: 144-145
(13) Krueger-Hadfield SA (2018) Society for the Study of Evolution New Faculty Profile
(12) Krueger-Hadfield SA (2018) #MySciComm: Seaweeds, Science, and SciComm
(11) Le Gall L, SA Krueger-Hadfield, I Probert (2016) Editorial Cryptogamie Algologie 37: 3 
(10) Sotka EE and SA Krueger-Hadfield (2014) Not all algae who wander are lost The Marine Biologist Fall 2014: 8-9
(9) Krueger-Hadfield SA (2013) Trans-equatorial hitchhiking: On the track of non-native Southern Hemisphere sea squirts. MBA News Spring 2013: 8-9
(8) Krueger-Hadfield SA (2012)  ASSEMBLE Infrastructure Access Call 5: Chilean sea squirt expedition blog hosted by the Marine Biological Association
​(7) Krueger-Hadfield SA (2012) World Conference on Marine Biodiversity  The Phycologist 82: 29
(6) Krueger-Hadfield SA, D Roze, S Mauger, C Destombe, M Valero (2012) O father, where art thou? Paternity analyses in a natural population of the red seaweed Chondrus crispus Journal of Phycology 48: S9-S10 (abstract)
(5) Krueger SA, D Roze and M Valero (2009) Life cycle variation and local adaptation in the red alga Chondrus crispus Cryptogamie Algologie 30: 338
(4) Krueger SA, D Roze, M Valero and JA Correa (2009) Population biology and mating system of an alga with a haploid diploid life cycle.  Biological Research 42 (Supplement A): 74 
(3) Krueger SA (2009)  British Phycological Society Algal Identification Course  The Phycologist 77: 8
(2) Krueger SA (2007) IV European Phycological Congress, Oviedo, Spain  The Phycologist 73: 8
(1) Krueger SA (2007) DAAD RISE Summary Excerpt in Plant Biology 9: N7-N12, Actualia 
© S.A. Krueger-Hadfield 2025
    
All photographs are subject to copyright and may not be used without permission.
Updated August 2025
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