Incorporation of Water-Borne Strontium into Otoliths and its Turnover in the Goldfish <i>Carassius auratus</i>: Effects of Strontium Concentrations, Temperature, and 17β-Estradiol

• Mugiya Yasuo

  Faculty of Fisheries, Hokkaido University

• Tanaka Satoshi

  Faculty of Fisheries, Hokkaido University

Bibliographic Information

Other Title

• Incorporation of Water-Borne Strontium into Otoliths and Its Turnover in the Goldfish Carassius auratus--Effects of Strontium Concentrations,Temperature,and 17β-Estradiol
• Incorporation of Water Borne Strontium
• Incorporation of Water-Borne Strontium into Otoliths and its Turnover in the Goldfish <i>Carassius auratus</i>: Effects of Strontium Concentrations, Temperature, and 17&beta;-Estradiol

Abstract

The incorporation and retention of water-borne strontium in otoliths (asterisci and/or lapilli) were studied using the freshwater goldfish Carassius auratus. The effects of strontium concentrations, temperature, and 17β-estradiol were examined using atomic absorption spectrophotometry and X-ray analysis. Water-borne strontium (0.1, 1.0, and 10.0 mgl^-1) was incorporated into otoliths (asterisci) in a concentration-dependent manner after an 88-day exposure, but a high concentration of 10.0 mgl^-1 rather depressed the rate of incorporation. Similar results were seen with Sr-Ca ratios in plasma and otoliths. The strontium incorporatedinto otoliths remained after 92 days in nonstrontium-enriched water, while that in scales and ribs decreased. Otolith (lapillus) Sr-Ca ratios distinctly differ d between freshwater (Sr/Ca=2.6×10^-3) -and diluted (1/9, 1/6, and 1/3) seawater (25×10^-3 on an average)-reared groups, but no difference was found among the seawater groups. These ratios linearly increased with temperatures between 16 and 24°C in asterisci (r=0.65). However, they somewhat decreased at 28°C. A single administration of 17β-estradiol resulted in hypercalcemia and decreas d strontium incorporation into the lapillus but not in the asteriscus. The lapi lus contained 12 times more strontium than the asteriscus.

Journal

• Fisheries science

  Fisheries science 61 (1), 29-35, 1995

  The Japanese Society of Fisheries Science

Keywords

• otolith
• strontium turnover
• Sr-Ca ratio
• temperature effect
• estradiol
• Carassius auratus

Details

• CRID: 1390282679405353088
• NII Article ID: 130003741953
• NII Article ID: 10004860624
• NII Book ID: AA10993718
• DOI: 10.2331/fishsci.61.29
• NDL BIB ID: 3644301
• ISSN: 09199268
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I3644301
• Web Site: https://www.jstage.jst.go.jp/article/fishsci1994/61/1/61_1_29/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed