Decadal population dynamics of an intertidal bivalve (Austrovenus stutchburyi) bed: pre- and post- a mass mortality event

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Title

Decadal population dynamics of an intertidal bivalve (Austrovenus stutchburyi) bed: pre- and post- a mass mortality event

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Three independent annual surveys with some spatial–temporal overlap were amalgamated to describe the population dynamics of the New Zealand intertidal cockle (Austrovenus stutchburyi) at Lews Bay, Whangateau Harbour from 1997–2018. After more than a decade of relative stability there was a dramatic decline in the biomass (from 7.4 to 1.8 kg wet weight m−2), density (1049 to 409 individuals m−2) and mean length (22.5 to 17.7 mm) of cockles following a mass mortality event in 2009. Large (≥30 m...

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Date created

24 Aug, 2020

Creator

Karen A. Tricklebank / Roger V. Grace / Conrad A. Pilditch

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https://figshare.com/articles/figure/Decadal_population_dynamics_of_an_intertidal_bivalve_i_Austr...

Related subjects

recovery dynamics / environmental stress / Whangateau / New Zealand / time series / hysteresis / size structure / cockle / disturbance / Biophysics / Evolutionary Biology / Ecology / Infectious Diseases

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