Theurich Nora ntheurich@geomar.de GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Briski Elizabeta ebriski@geomar.de 0000-0003-1896-3860 GEOMAR - Helmholtz Centre for Ocean Research Kiel GEOMAR http://www.geomar.de https://ror.org/02h2x0161 Cuthbert Ross N rossnoelcuthbert@gmail.com 0000-0003-2770-254X Queen´s University of Belfast QUB http://www.qub.ac.uk/ https://ror.org/00hswnk62 2024 Experiment on the functional response of Hemigrapsus takanoi towards a native and non-native gammarid species dataset https://doi.org/10.1594/PANGAEA.966183 2024-04-09T09:30:37 We conducted two experiments to assess the predation of female H. takanoi (a non-native species in the Baltic) on a native gammarid (Gammarus duebeni) and a non-native analogous gammarid (Gammarus tigrinus). In the first experiment, we examined the functional response of female H. takanoi to G. duebeni and G. tigrinus. The experiments were conducted at the GEOMAR Helmholtz Centre for Ocean Research Kiel. Crabs were sampled in the innermost part of the Kiel Fjord, Germany (59°19'44N, 10°08'55.5E) during the summer of 2021. The experimental design utilized a fully factorial approach. One temperature (16°C) and one salinity (10) across five prey densities (1, 2, 4, 8, 16) were used. Each combination was replicated three times, alongside three replicates of predator-free controls at each prey density to quantify background prey mortality. The crabs were starved for 48 hours ahead of the experiment and were exposed to the respective number of gammarids for a 6-hour feeding period. The number of gammarids consumed was recorded. Theurich Nora ntheurich@geomar.de Briski Elizabeta ebriski@geomar.de 0000-0003-1896-3860 Cuthbert Ross N rossnoelcuthbert@gmail.com 0000-0003-2770-254X 2024 Predatory preferences of a non-indigenous crab do not depend on prey invasion scenarios journal article Biological Invasions 26(5) https://doi.org/10.1007/s10530-024-03258-w 1295-1302 10.14875 10.14875 54.32911 54.32911 10.14875 54.32911 not specified Kiel_fjord_exp_H.takanoi 54.32911 10.14875 Kiel Fjord Sampling by hand HAND 380 CC-BY-4.0 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/ Type of study Study type type Theurich Nora ntheurich@geomar.de Study type Experiment duration Exp duration h Time T http://dbpedia.org/resource/Time Theurich Nora ntheurich@geomar.de Exp duration [h] Species, unique identification Species UID species Theurich Nora ntheurich@geomar.de Species UID Species, unique identification (URI) Species UID (URI) species Theurich Nora ntheurich@geomar.de Species UID (URI) Predator, sex Pred s sex Theurich Nora ntheurich@geomar.de Pred s Prey taxa Prey Theurich Nora ntheurich@geomar.de Prey Treatment: temperature T:temp °C treatment Temperature Θ http://dbpedia.org/resource/Temperature Theurich Nora ntheurich@geomar.de T:temp [°C] Treatment: salinity T:sal treatment Theurich Nora ntheurich@geomar.de T:sal Number of prey N prey # number prey Abundance or Count Theurich Nora ntheurich@geomar.de N prey [#] Number of prey N prey # number prey Abundance or Count Theurich Nora ntheurich@geomar.de eaten N prey [#] (eaten) Number of prey N prey # number prey Abundance or Count Theurich Nora ntheurich@geomar.de alive N prey [#] (alive) CurationLevelC Enhanced curation https://wiki.pangaea.de/wiki/Curation_levels citable Functional response Gammarus duebeni Gammarus tigrinus Hemigrapsus takanoi invasion ecology Laboratory experiment non-native species geomar author104632 author57100 author85442 curlevel30 event3122233 geocode1600 geocode1601 inst1288 inst20147 journal2170 license21 method11566 param105163 param130717 param155710 param164110 param185511 param185520 param510679 param56665 pi104632 ref124806 term242 term2663481 term28079 term38841 term41013 term43972 term43975 term44025 term44235 term44373 term49384 term49506 term50569 term50570 term50571 term73784 term73785 term73786 topotype1