Further Investigations on the Carbohydrate Content of Marine Zooplankton1

Abstract

Studies on the carbohydrate content of 11 species of planktonic animals have been carried out. In the case OI Culanus finmarchicus,

Studies on the Chemical Composition of the Major Zooplankton Groups in the Sargasso Sea Off Bermuda1

“…This supports the results of Raymont and Krishnaswamy (1960) and Raymont and Conover ( 1961). No confirmation of the results of Brandt and Raben (cited in Krey 1950) for the Sagittae was found, and, in fact, the chaetognaths showed the lowest average carbohydrate level observed.…”

“…Approximately 5-12 mg samples of the ground zooplankton were homogenized with 4 ml of 5% TCA containing 0.1% Ag,SOd and heated at 1OOC for 15 min ( Raymont and Conover 1961) . After centrifuging, l-ml subsamples were removed for carbohydrate determination with the anthrone reagent.…”

“…While the carbohydrate of certain zooplankton has been studied recently by Raymont and Krishnaswamy (1960) and Raymont and Conover (1961), the only noncrustacean examined was the ctenophore, Pleurobrachia pileus. In all species the amount of carbohydrate was small; for example, 0.4% of the dry weight of the copepod Calanus finmarchicus, 1.3% of the mysid Neomysis integer, and 0.2% for PZeurobrachiu (Raymont and Krishnaswamy 1960).…”

Studies on the seasonal variations in the proximate composition of ascidians from the Palk Bay, Southeast coast of India

“…The latter is not surprising as the discrete body components of solitary ascidians may be characterized by the localization of energy and materials in the body wall for energy reserves and in the ovitestes for gametogenesis . The protein content was positively related with salinity of the water [38] . Carbohydrates in fishery products contain no dietary fibre but only glucides, the majority of which consist of glycogen.…”

Limits of Nematoscelis megalops in the northwestern Atlantic in relation to Gulf Stream cold core rings. II, Physiological and biochemical effects of expatriation

“…Nematoscelis megalops, a large, Slope Water euphausiid, found south of the Gulf Stream only in association with cold core rings, appears to be a representative cold water euphausiid species with respect to its distribution, chemical composition, growth rate, and respiration (Raymont and Conover, 1961;Mauchline and Fisher, 1969;Gopalakrishnan, 1974;Wiebe and Boyd, 1978). The alteration of N. megalops's environment associated with ring decay ultimately leads to its local extinction.…”