| Summary: | Maintenance and Update Frequency: notPlanned Statement: Statement: The exopodite length (x mm) was converted to the body length (the tip of rostrum to the distal end of telson, yL, mm) or body weight (wet weight, yW, mg) by using the following equations: \nyL=2.646+7.360x (r=0.980,n=67) \nand \nlogyW=-2.614+2.885logx (r=0.986,n=23) \n \nThese relationships were established on preserved and fresh specimens of Euphausia superba of various sizes, respectively. \n \nThe water bottle method used to collect samples for determination of rates of oxygen uptake, ammonia excretion, inorganic phosphate excretion, dissolved organic nitrogen (DON) excretion, dissolved organic phosphate (DOP) excretion is described in: \nIkeda, T (1974) Nutritional ecology of marine zooplankton. Mem. Fac. Fish., Hokkaido Univ., Vol. 22, pp. 1-97. \n \nThe methods used for the determination of dissolved oxygen, ammonia, inorganic phosphate, DON and DOP are described in: \nStrickland, JDH and Parsons, TR (1972) A practical handbook of seawater analysis. Bull. Fish. Res. Board Can., No. 167, 310 pp. \n Credit Ikeda, Tsutomu, Dr (Principal Investigator) Euphausia superba were collected from the Antarctic Ocean during the cruise by RV Kaiyo-Maru in January 1980, and were transported to the Australian Institute of Marine Science laboratories at Townsville in February 1980. \n \nSpecimens of Euphausia superba were maintained in a cold room at -0.5°C (0 to -1.0°C) under continuous subdued light (< 0.6 W/m²) for a period of 5 months. Seawater was collected from the adjacent Coral Sea and the salinity adjusted to 34.0 ppt with distilled water. Single specimens were isolated into 1-4 litre glass beakers, depending on size. Approximately 80% of seawater in the beakers was changed once a week, when new food was prepared. One of three feeds was provided to each group of 15 specimens of various sizes: a mixture of laboratory cultures of microalgae (Dunaliella tertiolecta and Phaeodactylum tricornutum); an artificial pet fish food (Tetra Marin, W. ...
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