Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Torres, Gabriela; Giménez, Luis (2020): Compensatory responses to food limitation at metamorphosis in a marine invertebrate: is there temperature modulation? PANGAEA, https://doi.org/10.1594/PANGAEA.918056

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX Citation

Abstract:
Under climate change, increased temperatures combined with food limitation may be critical for species with complex life cycles, if high growth rates characterise the larval development. We studied the effect of increased temperature and food limitation on larval survival and on functional traits (developmental time, body mass, elemental composition, growth) at moulting and metamorphosis in the crab Carcinus maenas collected in the North Sea (Helgoland, Germany). We followed the approach of models of metamorphosis integrating responses of body mass and developmental time to increased temperature and food limitation. We also evaluated if body mass decreased with temperature (according to the temperature-size rule) and if developmental time followed an inverse exponential reduction (expected from some metabolic theories), as both trends are relevant for modelling effects of climate change on fitness and population connectivity. Larvae produced by four females during the reproductive period (i.e. spring-summer 2016) were reared separately from hatching to metamorphosis to the megalopa at two food conditions (ad libitum and low food availability), and at four temperatures covering the range experienced in the field (<20°C) and those expected from climate change (>20°C). Survival and developmental rates were obtained by daily monitoring of the experiments. Biomass data (body mass and elemental composition) were obtained by sampling larvae at the zoea IV and megalopa stages and further processed with standard methods (see Torres & Giménez 2020 for details). We propose that integrative studies of traits at metamorphosis could be a basis to develop a mechanistic understanding of how species with complex life cycles will respond to climate change. Such models could eventually include hormonal and metabolic regulation of development as drivers of responses to environmental change.
Keyword(s):
biomass growth; Carcinus maenas; European shore crab; food limitation; global warming; growth rates
Supplement to:
Torres, Gabriela; Giménez, Luis (2020): Temperature modulates compensatory responses to food limitation at metamorphosis in a marine invertebrate. Functional Ecology, https://doi.org/10.1111/1365-2435.13607
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
File contentContentTorres, Gabriela
File nameFile nameTorres, Gabriela
File formatFile formatTorres, Gabriela
File sizeFile sizekByteTorres, Gabriela
Uniform resource locator/link to fileURL fileTorres, Gabriela
Size:
10 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Content

File name

File format

File size [kByte]

URL file
Biomass dataBiomass_dataXLSX31.708Biomass_data.xlsx
Survival and developmental time dataSurvival_and_developmental_time_dataXLSX22.408Survival_and_developmental_time_data.xlsx