Seawater carbonate chemistry, particulate organic particles, nutrients and species data during experiments with diatoms, 2006

• Main Authors: Kim, Ja-Myung, Lee, Kitack, Shin, Kyoungsoon, Kang, Jung-Hoon, Lee, Hyun-Woo, Kim, Miok, Jang, Pung-Guk, Jang, Min-Chul
• Format: Dataset
• Language: English
• Published: PANGAEA 2006
• Subjects: µ-flagellates; Alkalinity; total; Aragonite saturation state; Bicarbonate ion; Biomass/Abundance/Elemental composition; Calcite saturation state; Calculated using seacarb after Nisumaa et al. (2010); Carbon; inorganic; dissolved; organic; particulate; Carbonate ion; Carbonate system computation flag; Carbon dioxide; Coast and continental shelf; Community composition and diversity; Containers and aquaria (20-1000 L or < 1 m**2); Counting; Cryptomonas spp.; Element analyser CHN; Entire community; EPOCA; EUR-OCEANS; European network of excellence for Ocean Ecosystems Analysis; European Project on Ocean Acidification; EXP; Experiment; Experimental treatment; Field experiment; Flow injection analysis; Fugacity of carbon dioxide (water) at sea surface temperature (wet air); Infrared sensor; Kim_etal_06; Nitrate; Nitrogen; Nitzschia spp.; North Pacific; OA-ICC; Ocean Acidification International Coordination Centre; Partial pressure of carbon dioxide (water) at sea surface temperature (wet air); Pelagos; pH; Pacific; Ocean acidification
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.718850; https://doi.org/10.1594/PANGAEA.718850

We examine the effects of seawater pCO2 concentration of 25, 41, and 76 kPa (250, 400, and 750 matm) on the growth rate of a natural assemblage of mixed phytoplankton obtained from a carefully controlled, 14-d mesocosm experiment. Throughout the experiment period, in all enclosures, two phytoplankton taxa (microflagellates and cryptomonads) and two diatom species (Skeletonema costatum and Nitzschia spp.) account for approximately 90% of the phytoplankton community. During the nutrient-replete period from day 9 to day 14 populations of Skeletonema costatum and Nitzschia spp. increased substantially; however, only Skeletonema costatum showed an increase in growth rate with increasing seawater pCO2. Not all diatom species in Korean coastal waters are sensitive to seawater pCO2 under nutrient-replete conditions.