Christopher McQuaid


Emeritus Professor of Zoology

PhD University of Cape Town (1980)


Phone: + 27 (0) 46 603 8535


Research Interests

  • Intertidal Biology
  • Southern Oceans research


PhD - Natanah Gusha  (MSc, Rhodes University)

PhD - Olwethu Duna (MSc, Rhodes University)

Postdoctoral Fellows 

Abby Gilson (PhD, Queen's University Belfast)

Jenny Booth (PhD, King Abdullah University of Science and Technology)

Kevin Ma (PhD, Université Laval)

Recent Publications



Ndhlovu, A, McQuaid CD, Monaco CJ. 2021. Ectoparasites reduce scope for growth in a rocky-shore mussel (Perna perna) by raising maintenance costs. Sci Total Environ 753 (2021) 142020


Seuront L, Nicastro KR, McQuaid CD, Zardi GI. 2021. Microplastic leachates induce species-specific trait strengthening in intertidal mussels. Ecol Applic 31(1), 2021, e02222


Muñiz C, McQuaid CD, Weidberg N. 2021. Seasonality of primary productivity affects coastal species more than its magnitude. STOTEN: 757,143740.


Hudson J, McQuaid CD, Rius M. 2021. Contemporary climate change hinders hybrid performance of ecologically dominant marine invertebrates. J Evol Biol 34: 60–72


Gusha MNC, Dalu T, McQuaid CD. 2021. Interaction between small scale habitat properties and short-term temporal conditions on food web dynamics of a warm temperate intertidal rock pool ecosystem. Hydrobiologia 848: 1517–1533


Zardi GI, Monsinjon JR, McQuaid CD, Seuront L, Orostica M, Want A, Firth LB, Nicastro KR. Foul-weather friends: Modelling thermal stress mitigation by symbiotic endolithic microbes in a changing environment. Glob Change Biol. 2021;27:2549–2560.


Pattrick P, Weidberg, Goschen WS, Jackson JM, McQuaid CD, Porri F. Larval fish assemblage structure at coastal fronts and the influence of environmental variability. Front. Ecol. Evol 9:684502


Danckwerts DK, Humeau L, Pinet P, McQuaid CD, Le Corre M. Extreme philopatry and genetic diversification at unprecedented scales in a seabird. Sci Rep.


Hudson J, Castillab JC,Teske PR, Beheregarayd LB, Haigha ID, McQuaid CD, and Rius M. 2021. Genomics-informed models reveal extensive stretches of coastline under threat by an ecologically dominant invasive species. PNAS Vol. 118


Booth JM, Fusi M, Giomi F, Chapman ECN, Diele K, and McQuaid CD. 2021. Diel oxygen fluctuation drives the thermal response and metabolic performance of coastal marine ectotherms. Proc. R. Soc. B 288: 20211141.




Ndhlovu A, McQuaid CD, Nicastro KR, Zardi GI. 2020. Community succession in phototrophic shell-degrading endoliths attacking intertidal mussels. J Moll Stud 87: 1–8. doi:10.1093/mollus/eyaa036


Ma KCK, McQuaid CD, Pulfrich A, Robinson TB. 2020. Status of a decennial marine invasion by the bisexual mussel Semimytilus algosus (Gould, 1850) in South Africa. Afr J mar Sci. 42: 507-515


Velez N, Nicastro KR, McQuaid CD, Zardi GI. 2020. Small scale habitat effects on anthropogenic litter material and sources in a coastal lagoon system. Mar Poll Bull 160 (2020) 111689.


Ma KCK, Zardi GI, McQuaid CD, Nicastro KR. 2020 . Historical and contemporary range expansion of an invasive mussel, Semimytlius algosus, in Angola and Namibia despite data scarcity in an infrequently surveyed region. PLoS One 15(9): e0239167.


Marshall DJ McQuaid CD. 2020. Metabolic regulation, oxygen limitation and heat tolerance in a subtidal marine gastropod reveal the complexity of predicting climate change vulnerability. Front Physiol 11:1106. doi:10.3389/fphys.2020.01106


Nicastro KR, McQuaid CD, Dievart A, Zardi GI. 2020. Intraspecific diversity in an ecological engineer functionally trumps interspecific diversity in shaping community structure. Sci Total Environ 743 (2020) 140723.


Matumba TG, Oliver J, Barker NP, McQuaid CD, Teske PR. 2020. Intraspecific mitochondrial gene variation can be as low as that of nuclear RNA. F1000Research 2020, 9:339.


Hudson J, Johannesson K, McQuaid CD, Rius M. 2020. Secondary contacts and genetic admixture shape colonisation by an amphiatlantic epibenthic invertebrate. Evol Applic 00:1–13. doi:10.1111/eva.12893


Ntuli NN, Nicastro KR, Zardi GI, Assis J, McQuaid CD, Teske PR. 2020. Rejection of the genetic implications of the “Abundant Centre Hypothesis” in marine mussels. Sci Rep 10:604


Lourenço CR, Nicastro KR, McQuaid CD, Krug LA, Zardi GI. 2020. Strong upwelling conditions drive differences in species abundance and community composition along the Atlantic coasts of Morocco and Western Sahara. Mar Biodiv 50: 15


Humphries AT, McClanahan TR, McQuaid CD. 2020. Algal turf consumption by sea urchins and fishes is mediated by fisheries management on coral reefs in Kenya. Coral Reefs
Gusha MNC, Dalu T, Wassermann RJ, CD. 2019. Zooplankton grazing pressure is insufficient for primary producer control under elevated warming and nutrient levels. Sci Total Environ 651: 410-418.


Monteiro C, Zardi GI, McQuaid CD, Serrão EA, Pearson GA, Nicastro KR. Canopy microclimate modification in central and marginal populations of a marine macroalga. 2019. Mar Biodiv 49: 415-424.


Monaco CJ, Porporato EMD, Lathlean JA, Tagliorolo M, Sara, G, McQuaid CD 2019. Predicting the performance of cosmopolitan species: Dynamic Energy Budget model skill drops across large spatial scales. Mar Biol 166: 14


Basto MN, Nicastro KR, Tavares A, McQuaid CD, Casero M, Zardi GI. 2019. High synthetic polymer diet: plastic ingestion in aquatic-associated birds in Portugal. Mar Poll Bull 138: 19-24


Weidberg N, Goschen W, Jackson J, Pattrick P, McQuaid CD, Porri F. 2019. Fine scale depth regulation of invertebrate larvae around coastal fronts. Limnol Oceanogr 64: 785-802


Ndhlovu A, McQuaid CD, Nicastro K, Marquet N, Gektidis M, Monaco CJ, Zardi G. 2019. Biogeographical patterns of endolithic infestation in an invasive and an indigenous intertidal marine ecosystem engineer. Diversity 11, 75; doi:10.3390/d11050075


Lathlean JA, Trassierra JA, Everett JD, McQuaid CD. 2019. Testing the intermittent upwelling hypothesis: intercontinental comparisons of barnacle recruitment between South Africa and Australia. Est Coast Shelf Sci 224: 197-208


Puccinelli E, McQuaid CD, Dobretsov S, Christofoletti RA. 2019. Coastal upwelling affects filter-feeder stable isotope composition across three continents. Mar Environ Res 147: 13-23


Monaco CJ, McQuaid CD 2019. Climate warming reduces the reproductive advantage of a globally invasive intertidal mussel. Biol Inv 21: 2503-2516


Cannicci S, Mostert B, Fratini S, McQuaid CD, Porri F 2019. Settlement of sesarmid crab larvae across the east coast of Africa: evidence for recruitment limitation and competent settlement within the mangrove forests. Mar Ecol Prog Ser 626:123-133


Connan, Dilley BJ, Whitehead TO, Davies D, McQuaid CD, Ryan PG. 2019. Multidimensional stable isotope analysis illuminates resource partitioning in a sub-Antarctic island bird community. Ecography 42:1948-1959


Steinfurth A, Booth JM, White J, Bond AL, McQuaid CD 2019. Sexual and geographic dimorphism in northern rockhopper penguins breeding in the South Atlantic Ocean. Endang Species Res 39: 293–302


Velez N, Zardi GI, Savio RL, McQuaid CD, Valbusa U, Sabour B, Nicastro KR. 2019. A baseline assessment of beach macrolitter and microplastics along northeastern Atlantic shores. Mar Poll Bull 149: 110649.


McQuaid CD, Blamey LK. 2019. Where three oceans meet: state of the art and developments in southern African coastal marine biology. In: Interactions in the marine benthos. Eds. SJ Hawkins, K Bohn, LB Firth, GA Williams. Cambridge University Press. pp. 333-359.

Katy R. Nicastro, Christopher D. McQuaid, Gerardo I. Zardi. Between a rock and a hard place: combined effect of trampling and phototrophic shell-degrading endoliths in marine intertidal mussels. 2019. Marine Biodiversity


Molline N.C. Gusha, Tatenda Dalu, Ryan J. Wasserman, Christopher D. McQuaid. Zooplankton grazing pressure is insufficient for primary producer control under elevated warming and nutrient levels. 2019. Science of the Total Environment 651 (2019) 410–418. 


Cristián J. Monaco, Erika M. D. Porporato, Justin A. Lathlean, Morgana Tagliarolo, Gianluca Sarà, Christopher D. McQuaid. Predicting the performance of cosmopolitan species: dynamic energy budget model skill drops across large spatial scales. 2019. Marine Biology 166:14

Last Modified: Wed, 18 May 2022 10:50:51 SAST