Spider crab Hyas araneus larval dry weight, C/N ratio and developmental time during experiments from different latitudes (54° vs 79°N), 2010
Fuente:
PANGAEA
Salvato in:
| Autori principali: | , , |
|---|---|
| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
2010
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1867170259122782208 |
|---|---|
| author | Walther, Kathleen Anger, Klaus Pörtner, Hans-Otto |
| author_facet | Walther, Kathleen Anger, Klaus Pörtner, Hans-Otto |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The combined impacts of future scenarios of ocean acidification and global warming on the larvae of a cold-eurythermal spider crab, Hyas araneus L., were investigated in one of its southernmost populations (living around Helgoland, southern North Sea, 54°N) and one of the northernmost populations (Svalbard, North Atlantic, 79°N). Larvae were exposed at temperatures of 3, 9 and 15°C to present day normocapnia (380 ppm CO2) and to CO2 conditions expected for the near or medium-term future (710 ppm by 2100 and 3000 ppm CO2 by 2300 and beyond). Larval development time and biochemical composition were studied in the larval stages Zoea I, II, and Megalopa. Permanent differences in instar duration between both populations were detected in all stages, likely as a result of evolutionary temperature adaptation. With the exception of Zoea II at 3°C and under all CO2 conditions, development in all instars from Svalbard was delayed compared to those from Helgoland, under all conditions. Most prominently, development was much longer and fewer specimens morphosed to the first crab instar in the Megalopa from Svalbard than from Helgoland. Enhanced CO2 levels (710 and particularly 3000 ppm), caused extended duration of larval development and reduced larval growth (measured as dry mass) and fitness (decreasing C/N ratio, a proxy of the lipid content). Such effects were strongest in the zoeal stages in Svalbard larvae, and during the Megalopa instar in Helgoland larvae. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_752281 |
| institution | PANGAEA |
| language | en |
| publishDate | 2010 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Spider crab Hyas araneus larval dry weight, C/N ratio and developmental time during experiments from different latitudes (54° vs 79°N), 2010 Walther, Kathleen Anger, Klaus Pörtner, Hans-Otto EPOCA; European Project on Ocean Acidification; Experimental treatment; Hyas araneus, C/N ratio, megalopa; Hyas araneus, C/N ratio, Zoea I; Hyas araneus, C/N ratio, Zoea II; Hyas araneus, developmental time, Zoea I; Hyas araneus, developmental time, Zoea II; Hyas araneus, dry weight, megalopa; Hyas araneus, dry weight, Zoea I; Hyas araneus, dry weight, Zoea II; Site; Temperature, water The combined impacts of future scenarios of ocean acidification and global warming on the larvae of a cold-eurythermal spider crab, Hyas araneus L., were investigated in one of its southernmost populations (living around Helgoland, southern North Sea, 54°N) and one of the northernmost populations (Svalbard, North Atlantic, 79°N). Larvae were exposed at temperatures of 3, 9 and 15°C to present day normocapnia (380 ppm CO2) and to CO2 conditions expected for the near or medium-term future (710 ppm by 2100 and 3000 ppm CO2 by 2300 and beyond). Larval development time and biochemical composition were studied in the larval stages Zoea I, II, and Megalopa. Permanent differences in instar duration between both populations were detected in all stages, likely as a result of evolutionary temperature adaptation. With the exception of Zoea II at 3°C and under all CO2 conditions, development in all instars from Svalbard was delayed compared to those from Helgoland, under all conditions. Most prominently, development was much longer and fewer specimens morphosed to the first crab instar in the Megalopa from Svalbard than from Helgoland. Enhanced CO2 levels (710 and particularly 3000 ppm), caused extended duration of larval development and reduced larval growth (measured as dry mass) and fitness (decreasing C/N ratio, a proxy of the lipid content). Such effects were strongest in the zoeal stages in Svalbard larvae, and during the Megalopa instar in Helgoland larvae. |
| title | Spider crab Hyas araneus larval dry weight, C/N ratio and developmental time during experiments from different latitudes (54° vs 79°N), 2010 |
| topic | EPOCA; European Project on Ocean Acidification; Experimental treatment; Hyas araneus, C/N ratio, megalopa; Hyas araneus, C/N ratio, Zoea I; Hyas araneus, C/N ratio, Zoea II; Hyas araneus, developmental time, Zoea I; Hyas araneus, developmental time, Zoea II; Hyas araneus, dry weight, megalopa; Hyas araneus, dry weight, Zoea I; Hyas araneus, dry weight, Zoea II; Site; Temperature, water |
| url | https://doi.org/10.1594/PANGAEA.752281 |