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Giménez, Luis; Torres, Gabriela (2022): Effect of food limitation and temperature on survival and development of Hemigrapsus sanguineus first stage larvae. PANGAEA, (DOI registration in progress)

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This is a laboratory experiment, carried out in Helgoland to explore how responses to the time scale and magnitude of fluctuations in environmental variables depend on the choice of time reference frame. The experiment consisted of exposing larvae of an intertidal invertebrate, Hemigrapsus sanguineus to different initial feeding periods (in days; food = freshly hatched Artemia sp Nauplii provided ad libitum), followed by a period without food. An ovigerous female of H. sanguineus was collected by hand in the intertidal of Helgoland (SW beach: “Kringel”; coordinates: 54.177323°N, 7.885273°E) during low tide on the 15th October 2020. It was kept until larval hatching in an aquarium (vol = 2 L with a shelter) at salinity = 32 ppt, temperature = 18°C, photoperiod 12:12, permanent oxygenation and fed every second day (from frozen shrimp); water was changed every day. Experiments started on date 31st October 2020 (day 0 of the feeding period). The feeding protocol was carried out with groups of freshly hatched zoea I larvae (3 replicates of 10 larvae each) at 4 temperatures (15, 17, 19, 21°C). Larvae were reared at salinity = 32 ppt. The response variables were developmental time (in days) and the number of larvae reaching the second zoeal stage. Additional columns provide calculations of the average duration of development depending on temperature and the proportion of feeding time given as a proportion of the full developmental time.
Environmental fluctuations; invertebrate larvae; Laboratory experiment; Multiple stressors
Supplement to:
Giménez, Luis; Espinosa, Noé; Torres, Gabriela (2022): A framework to understand the role of biological time in responses to fluctuating climate drivers. Scientific Reports, 12(1), 10429,
Latitude: 54.177323 * Longitude: 7.885273
Date/Time Start: 2020-10-31T00:00:00 * Date/Time End: 2020-10-31T00:00:00
Kringel_2020 (Kringel) * Latitude: 54.177323 * Longitude: 7.885273 * Date/Time: 2020-10-15T00:00:00 * Location: Helgoland, North Sea * Method/Device: Sampling by hand (HAND)
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Type of studyStudy typeGiménez, Luis
2Species, unique identificationSpeciesGiménez, Luis
3Species, unique identification (URI)Species (URI)Giménez, Luis
4Species, unique identification (Semantic URI)Species (Semantic URI)Giménez, Luis
5Life stageLife stageGiménez, Luis
6DATE/TIMEDate/TimeGiménez, LuisGeocode – start of experiment
7IdentificationIDGiménez, Luis
8TreatmentTreatGiménez, LuisID
9Temperature, water, experimentT water°CGiménez, Luis
10Feeding periodFeed perioddayGiménez, Luis
11ReplicateReplicateGiménez, Luis
12SurvivalSurv#Giménez, LuisCounting, visualto zoea II
13Number of individualsInd No#Giménez, LuisCounting, visualinitial
14Duration, number of daysDurationdaysGiménez, LuisCalculateddevelopment to zoea II
15Duration, number of daysDurationdaysGiménez, LuisCalculateddevelopment, mean by temperature
16Proportion of timeProportion of timeGiménez, LuisCalculatedfeeding period/mean duration of development
Curation Level: Enhanced curation (CurationLevelC)
1529 data points

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