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Erythrocyte supply from the spleen and hemoconcentration in hypoxic yellowtail

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Abstract

Hematocrit and hemoglobin concentration of yellowtail blood elevated more than 30% during severe hypoxia for 35 or 40 min. About 40% of the hematocrit elevation is considered to have been caused by erythrocyte supply from the spleen, and about 60% by hemoconcentration due to water shift out of the circulating plasma. Osmotic swelling of erythrocytes is considered not to have occurred, judging from the constant level in the saturation index of the blood.

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Author notes

  1. K. Yamamoto

    Present address: Ono Limnological Station, Shimonoseki University of Fisheries, Shimo-ono, Ono-ku, 754-13, Ube, Japan

Authors and Affiliations

  1. Department of Fisheries, Kyushu University, Hakozaki, 46-04, 812, Fukoka, Japan

    K. Yamamoto & Y. Itazawa

  2. Department of Biology and Aquaculture, Shimonoseki University of Fisheries, Nagata-honmachi, 759-65, Yoshimi, Shimonoseki, Japan

    H. Kobayashi

Authors
  1. K. Yamamoto
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  2. Y. Itazawa
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  3. H. Kobayashi
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Communicated by M. Anraku, Hiroshima

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Yamamoto, K., Itazawa, Y. & Kobayashi, H. Erythrocyte supply from the spleen and hemoconcentration in hypoxic yellowtail. Mar. Biol. 73, 221–226 (1983). https://doi.org/10.1007/BF00392246

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  • DOI: https://doi.org/10.1007/BF00392246

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