Effect of simulated heatwaves on larval performance of two marine invertebrates
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| Format: | Dataset Open Access |
| Langue: | en |
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PANGAEA
2021
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| _version_ | 1867170109786685440 |
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| author | Giménez, Luis Torres, Gabriela |
| author_facet | Giménez, Luis Torres, Gabriela |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | An experiment was carried to study the effect of a simulated heatwave on the survival of two intertidal invertebrates, Carcinus maenas and Hemigrapsus sanguineus. Animals where collected on Helgoland and larvae hatched in the laboratory; the experiment was restricted to the larval stages. Larvae were reared in 5 replicate groups of 10-11 individuals in filtered water and fed Artemia sp. nauplii (glasses of 60 ml). There were four thermal treatments: 1: low - constant temperature; 2: smooth increase in temperature; 3: high constant temperature; 4: sudden increase in temperature simulating a short heatwave. Treatment 1 and 2 had the same average temperature (16.5 °C) as well as treatments 3 and 4 (=17.5 °C). Treatment 2 started with temperature at 15 °C and it increased 0.5 °C every day; treatment 4 started also at 15 °C and increased to 18 °C on day 1 where it remained constant until the end of the experiment. The four thermal treatments were applied to groups of larvae under three different additional treatments: (A) Food provided 24 h a day - salinity = 32 PSU; (B) Food provided 6 h a day - salinity = 32 PSU;Food provided 24 h a day - salinity = 20 PSU. The experiment was repeated with larvae from 3 females of each of the above mentioned species. The response variable was the survival proportion to the second larval stage (Zoea II). |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_934715 |
| institution | PANGAEA |
| language | en |
| publishDate | 2021 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Effect of simulated heatwaves on larval performance of two marine invertebrates Giménez, Luis Torres, Gabriela Carcinus; heatwaves; Hemigrapsus; larvae An experiment was carried to study the effect of a simulated heatwave on the survival of two intertidal invertebrates, Carcinus maenas and Hemigrapsus sanguineus. Animals where collected on Helgoland and larvae hatched in the laboratory; the experiment was restricted to the larval stages. Larvae were reared in 5 replicate groups of 10-11 individuals in filtered water and fed Artemia sp. nauplii (glasses of 60 ml). There were four thermal treatments: 1: low - constant temperature; 2: smooth increase in temperature; 3: high constant temperature; 4: sudden increase in temperature simulating a short heatwave. Treatment 1 and 2 had the same average temperature (16.5 °C) as well as treatments 3 and 4 (=17.5 °C). Treatment 2 started with temperature at 15 °C and it increased 0.5 °C every day; treatment 4 started also at 15 °C and increased to 18 °C on day 1 where it remained constant until the end of the experiment. The four thermal treatments were applied to groups of larvae under three different additional treatments: (A) Food provided 24 h a day - salinity = 32 PSU; (B) Food provided 6 h a day - salinity = 32 PSU;Food provided 24 h a day - salinity = 20 PSU. The experiment was repeated with larvae from 3 females of each of the above mentioned species. The response variable was the survival proportion to the second larval stage (Zoea II). |
| title | Effect of simulated heatwaves on larval performance of two marine invertebrates |
| topic | Carcinus; heatwaves; Hemigrapsus; larvae |
| url | https://doi.org/10.1594/PANGAEA.934715 |