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The Aglomerular Kidney of the Deep-sea Fish, Ateleopus japonicus (Ateleopodiformes: Ateleopodidae): Evidence of Wider Occurrence of the Aglomerular Condition in Teleostei
Abstract
Hitherto, aglomerular kidneys have been found in some species within three groups of teleosts: Elopomorpha, Paracanthopterygii, and Percomorpha. Here we report the presence of an aglomerular kidney in the benthopelagic deep-sea fish Ateleopus japonicus (Ateleopodidae: Jellynose fish). The kidney consists of a pair of strap-like bands located in the typical retroperitoneal position. Light microscopic observation of serial longitudinal and cross sections revealed no glomerulus. The kidney is composed of renal tubules, sinusoidal capillaries of the renal portal system, and extensive interstitial lymphoid tissues. Each renal tubule is highly convoluted and surrounded by the well-developed renal portal system. The tubules are well separated within the kidney. An updated species list of teleosts with aglomerular kidneys is presented. Water content of A. japonicus was found to be very high for a marine fish (ca. 90%), and we discuss the functional significance of the aglomerular kidney in A. japonicus in terms of neutral buoyancy.
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“We do not know whether the deepest-living marine teleosts are aglomerular, but they are gelatinous, similar to known aglomerular deep-sea species (33), with N. kermadecensis having a thick subdermal gelatinous layer.”
From Marine fish may be biochemically constrained from inhabiting the deepest ocean depths (2014) · cites this paper as [33]
In the citing paper
“In evolving for seawater, shallow teleosts have become hypoosmotic at about 350 mOsmol/kg internally, with the opposite physiological processes, including inactive glomeruli or, in some groups, complete absence of glomeruli.”
From Marine fish may be biochemically constrained from inhabiting the deepest ocean depths (2014) · cites this paper as [33]
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Marine fish may be biochemically constrained from inhabiting the deepest ocean depths
Yancey, P. H., Gerringer, M. E., Drazen, J. C., Rowden, A. A., & Jamieson, A. (2014) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1322003111 · Cited by 284
Metadata
- Authors
- Ozaka, C., Yamamoto, N., & Somiya, H.
- ORCID
- Yamamoto, Naoyuki
- Venue
- Copeia
- Published
- 2009-09-03
- Volume
- 2009
- Issue
- 3
- Pages
- 609-617
- ISSN
- 0045-8511 (ISSN-L)
- 1938-5110
- OpenAlex
- W2067894428
- Cited by
- 13
- References
- 0
- Citations by year
- 2026: 2 · 2022: 2 · 2020: 1 · 2017: 2 · 2015: 1 · 2014: 1 · 2013: 1 · 2012: 2
- FWCI
- 1.17
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Copeia (publishedVersion)
- BioOne Complete (BioOne) (submittedVersion)
- Topics
- Health Sciences › Medicine › Anatomy › Comparative Animal Anatomy Studies
- Life Sciences › Agricultural and Biological Sciences › Aquatic Science › Fish Biology and Ecology Studies
- Physical Sciences › Environmental Science › Nature and Landscape Conservation › Ichthyology and Marine Biology
- Keywords
- deep-sea fish, renal portal system, renal tubules, moisture content, neutral buoyancy
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