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Evidence of paterna...
Evidence of paternal nutrient provisioning to embryos in broad-nosed pipefish Syngnathus typhle
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- Kvarnemo, C. (author)
- Stockholms universitet,Zoologiska institutionen
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- Mobley, Kenyon B. (author)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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Partridge, C. (author)
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Jones, A. G. (author)
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- Ahnesjö, Ingrid (author)
- Uppsala universitet,Zooekologi
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(creator_code:org_t)
- 2011-05-12
- 2011
- English.
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In: Journal of Fish Biology. - : Wiley. - 0022-1112 .- 1095-8649. ; 78:6, s. 1725-1737
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https://doi.org/10.1...
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Abstract
Subject headings
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- In two experiments, radioactively labelled nutrients (either H-3-labelled amino-acid mixture or C-14-labelled glucose) were tube-fed to brooding male Syngnathus typhle. Both nutrients were taken up by the males and radioactivity generally increased in the brood pouch tissue with time. Furthermore, a low but significant increase of H-3-labelled amino acids in embryos was found over the experimental interval (48 h), whereas in the C-14-glucose experiment the radioactivity was taken up by the embryos but did not increase over the experimental time (320 min). Uptake of radioisotopes per embryo did not differ with embryo size. A higher uptake mg(-1) tissue of both H-3-labelled amino acids and C-14-labelled glucose was found in smaller embryos, possibly due to a higher relative metabolic rate or to a higher surface-area-to-volume ratio compared to larger embryos. Uptake in embryos was not influenced by male size, embryonic developmental advancement or position in the brood pouch. It is concluded that brooding males provide amino acids, and probably also glucose, to the developing embryos in the brood pouch.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Zoologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Zoology (hsv//eng)
Keyword
- feeding of offspring
- paternal care
- radiolabelled amino acids and glucose
- Syngnathidae
- viviparity
- NATURAL SCIENCES
- NATURVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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