(Table 1) 100 m integrated temperature, chlorophyll a content and protist biomass during Leg 7 of Galathea 3 cruise (2006)
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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
2013
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| _version_ | 1867169093773164544 |
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| author | Jónasdóttir, Sigrún Huld |
| author_facet | Jónasdóttir, Sigrún Huld |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | We present a study on the protozooplankton >5 µm and copepods larger than 50 µm at a series of contrasting stations across the Southern Indian Ocean (SIO). Numerically, over 80% of the copepod community across the transect was less than 650 µm in size, dominated by nauplii, and smaller copepods, while 80% of the biomass (as mg C/m**3) was larger than 1300 µm in body length. Predation by the carnivorous copepod Corycaeus sp. was estimated to be able to remove up to 2% /d of the copepods <1000 µm in size. By the help of grazing models we estimated that primary producers were mainly grazed upon by ciliates and heterotrophic dinoflagellates (40-80% /d combined) in temperate waters but appendicularians became increasingly important in the tropical waters grazing about 40% of the biomass per day. Despite their high abundance and biomass, copepods contributed less than 20% of the grazing at most stations. Secondary production was low (carbon specific egg production <0.14 /d) but typical for food limited oligotrophic oceans. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_835227 |
| institution | PANGAEA |
| language | en |
| publishDate | 2013 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) 100 m integrated temperature, chlorophyll a content and protist biomass during Leg 7 of Galathea 3 cruise (2006) Jónasdóttir, Sigrún Huld Chlorophyll a, areal concentration; Chlorophyll a, standard deviation; Copepoda, biomass as carbon, integrated; DATE/TIME; Depth, bottom/max; Depth, top/min; Event label; Galathea_3; Galathea_3/7-1; Galathea_3/7-15; Galathea_3/7-18; Galathea_3/7-23; Galathea_3/7-28; Galathea_3/7-33; Galathea_3/7-8; HDMS Vaedderen; Indian Ocean; International Polar Year (2007-2008); IPY; Latitude of event; Longitude of event; MULT; Multiple investigations; Protista, biomass as carbon; Standard deviation; Temperature, water; Temperature, water, standard deviation We present a study on the protozooplankton >5 µm and copepods larger than 50 µm at a series of contrasting stations across the Southern Indian Ocean (SIO). Numerically, over 80% of the copepod community across the transect was less than 650 µm in size, dominated by nauplii, and smaller copepods, while 80% of the biomass (as mg C/m**3) was larger than 1300 µm in body length. Predation by the carnivorous copepod Corycaeus sp. was estimated to be able to remove up to 2% /d of the copepods <1000 µm in size. By the help of grazing models we estimated that primary producers were mainly grazed upon by ciliates and heterotrophic dinoflagellates (40-80% /d combined) in temperate waters but appendicularians became increasingly important in the tropical waters grazing about 40% of the biomass per day. Despite their high abundance and biomass, copepods contributed less than 20% of the grazing at most stations. Secondary production was low (carbon specific egg production <0.14 /d) but typical for food limited oligotrophic oceans. |
| title | (Table 1) 100 m integrated temperature, chlorophyll a content and protist biomass during Leg 7 of Galathea 3 cruise (2006) |
| topic | Chlorophyll a, areal concentration; Chlorophyll a, standard deviation; Copepoda, biomass as carbon, integrated; DATE/TIME; Depth, bottom/max; Depth, top/min; Event label; Galathea_3; Galathea_3/7-1; Galathea_3/7-15; Galathea_3/7-18; Galathea_3/7-23; Galathea_3/7-28; Galathea_3/7-33; Galathea_3/7-8; HDMS Vaedderen; Indian Ocean; International Polar Year (2007-2008); IPY; Latitude of event; Longitude of event; MULT; Multiple investigations; Protista, biomass as carbon; Standard deviation; Temperature, water; Temperature, water, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.835227 |