Atlas of Marine Zooplankton Straits of Magellan: Copepods by Letterio Guglielmo, Adrianna Ianora, M.G. Mazzocchi, G.

By Letterio Guglielmo, Adrianna Ianora, M.G. Mazzocchi, G. Zagami, L. Guglielmo, N. Crescenti, J. Hure

The Antarctic represents the final of the world's nonetheless unexplored continents. in view that 1985, Italy has despatched 9 expeditions to this quarter, making it probably the most scientifically lively countries within the Antarctic. Italy has outfitted an everlasting base there and has started a scientific selection of information and samples in order to give a contribution to our knowing of this abnormal and intensely interesting continent. inside this framework, Italy has additionally carried out learn in a sub-Antarctic sector of serious clinical curiosity, the Straits of Magellan. This zone, with its attribute oceanography and biota, represents a transition aspect among the faunal assemblages of temperate and antarctic seas. This atlas at the zooplankton is a vital contribution to the learn of the faunal assemblages of the sector of the Straits and should with a bit of luck be by way of others. The initiative is a part of an unlimited software introduced by way of the Italian Ministry of Universities and clinical and Technological learn to advertise the exploration of Antarctic and sub-Antarctic seas, the purpose of that is to maintain one of many Earth's greatest and such a lot undisturbed traditional laboratories.

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Additional resources for Atlas of Marine Zooplankton Straits of Magellan: Copepods

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Male: F whole animal dorsal view; G P5 Fig. 2A-E. Metridia lucens. Female: A whole animal dorsal view; B whole animal lateral view; C, D, E variations in the number of joints in the P5. Bars: A, B 500 ~m; C, D, E 50 ~m Fig. 3A-F. Metridia lucens. Male: A whole animal dorsal view; B forehead with rostral filaments; Cleft postero-Iateral corner of last thoracic somite; D, E P5 with reversed rami; F detail of denticles on spiniform process of P5 (arrow in E).

CO2 was changed every hour. Specimens were then slowly brought to a temperature of 50°C and a pressure of 50 atm. The pressure was gradually brought back to normal within 30 min and specimens were slowly cooled to ambient temperature. 14 Total no. 2 kV and 10 rnA of the sputtering apparatus. Since SEM preparations required a large number of clean and intact specimens for detailed taxonomic description, SEM tables are lacking in some cases due to the paucity of material. 2. Volumes of water filtered, total copepod numbers, temperature, salinity and fluorescence data for the different depth layers sampled at 19 stations during the RIV Cariboo Cruise in the Straits of Magellan in February-March 1991.

B. F F A l00 ~ m 1------11 1 00~m f-----ll G c. D. 1A-G. Metridia lucens. Female: A whole animal dorsal view; B whole animal lateral view; C, D, E P5 showing variations in number of joints and spines on outer margins. Male: F whole animal dorsal view; G P5 Fig. 2A-E. Metridia lucens. Female: A whole animal dorsal view; B whole animal lateral view; C, D, E variations in the number of joints in the P5. Bars: A, B 500 ~m; C, D, E 50 ~m Fig. 3A-F. Metridia lucens. Male: A whole animal dorsal view; B forehead with rostral filaments; Cleft postero-Iateral corner of last thoracic somite; D, E P5 with reversed rami; F detail of denticles on spiniform process of P5 (arrow in E).

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