A mouthless late-term coach whipray Himantura uarnak embryo (Elasmobranchii, Dasyatidae) has implications for our understanding of matrotrophy in chondrichthyans

Aaron C. Henderson; Stephan Bruns; Shamsa Al Hameli

doi:10.1111/jfb.15590

A mouthless late-term coach whipray Himantura uarnak embryo (Elasmobranchii, Dasyatidae) has implications for our understanding of matrotrophy in chondrichthyans

Aaron C. Henderson, Stephan Bruns, Shamsa Al Hameli

Department of Biology

Research output: Contribution to journal › Article › peer-review

Abstract

Maternal nutrient provisioning occurs in most live-bearing chondrichthyan lineages. It is particularly conspicuous in the Myliobatiformes, whereby the endometrium secretes a nutrient-rich histotroph that is utilized by the developing embryo. The occurrence of a deformed and mouthless, late-term myliobatiform embryo is described here, demonstrating that the direct, oral ingestion of histotroph is not obligatory in these animals.

Original language	English
Pages (from-to)	1608-1610
Number of pages	3
Journal	Journal of Fish Biology
Volume	104
Issue number	5
DOIs	https://doi.org/10.1111/jfb.15590
Publication status	Published - May 2024

Keywords

deformity
development
elasmobranch
histotroph
reproduction

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Aquatic Science

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10.1111/jfb.15590

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title = "A mouthless late-term coach whipray Himantura uarnak embryo (Elasmobranchii, Dasyatidae) has implications for our understanding of matrotrophy in chondrichthyans",

abstract = "Maternal nutrient provisioning occurs in most live-bearing chondrichthyan lineages. It is particularly conspicuous in the Myliobatiformes, whereby the endometrium secretes a nutrient-rich histotroph that is utilized by the developing embryo. The occurrence of a deformed and mouthless, late-term myliobatiform embryo is described here, demonstrating that the direct, oral ingestion of histotroph is not obligatory in these animals.",

keywords = "deformity, development, elasmobranch, histotroph, reproduction",

author = "Henderson, {Aaron C.} and Stephan Bruns and {Al Hameli}, Shamsa",

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year = "2024",

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AU - Bruns, Stephan

AU - Al Hameli, Shamsa

PY - 2024/5

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AB - Maternal nutrient provisioning occurs in most live-bearing chondrichthyan lineages. It is particularly conspicuous in the Myliobatiformes, whereby the endometrium secretes a nutrient-rich histotroph that is utilized by the developing embryo. The occurrence of a deformed and mouthless, late-term myliobatiform embryo is described here, demonstrating that the direct, oral ingestion of histotroph is not obligatory in these animals.

KW - deformity

KW - development

KW - elasmobranch

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KW - reproduction

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A mouthless late-term coach whipray Himantura uarnak embryo (Elasmobranchii, Dasyatidae) has implications for our understanding of matrotrophy in chondrichthyans

Abstract

Keywords

ASJC Scopus subject areas

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