Histopathology of the disease causing mass mortality of sea urchins (Strongylocentrotus droebachiensis) in Nova Scotia

G. M. Jones; A. J. Hebda; R. E. Scheibling; R. J. Miller

doi:10.1016/0022-2011(85)90102-8

Histopathology of the disease causing mass mortality of sea urchins (Strongylocentrotus droebachiensis) in Nova Scotia

G. M. Jones, A. J. Hebda, R. E. Scheibling, R. J. Miller

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

29 Citations (Scopus)

Abstract

The disease causing mass mortalities of Strongylocentrotus droebachiensis off Nova Scotia, Canada, from 1980 to 1983 is described. Diseased urchins were characterized by loss of preipheral muscle function in tube feet, spines, and mouth. Signs occurred primarily in the body wall and associated tissues (water vascular system, nerves, spine bases) and coelomic fluid. These symptoms were diffuse and included a general infiltration of tissues with amoebocytes. The coelomic fluid often contained reduced numbers of red and white spherule cells, and clotting was incomplete. Progressive breakdown and fragmentation of muscle cells in tube feet and spine bases resulted in destruction of coherent muscle layers and their replacement by numerous spindle-shaped fibrillar muscle remnants. Coelomic lining cells in the tube feet sloughed off into the lumen, but remained in clumps and phagocytosed muscle remnants.

Original language	English
Pages (from-to)	260-271
Number of pages	12
Journal	Journal of Invertebrate Pathology
Volume	45
Issue number	3
DOIs	https://doi.org/10.1016/0022-2011(85)90102-8
Publication status	Published - May 1985
Externally published	Yes

Bibliographical note

Funding Information:
The authors thank B. Scully. M. Primrose, and S. Fry for technical assistance. This research was supported by D.S.S. Contract IOSC.FPlOl-3-0217 (UP). Dr. Scheibling is in receipt of a grant from NSERC.

ASJC Scopus Subject Areas

Ecology, Evolution, Behavior and Systematics

PubMed: MeSH publication types

Journal Article
Research Support, Non-U.S. Gov't

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10.1016/0022-2011(85)90102-8

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title = "Histopathology of the disease causing mass mortality of sea urchins (Strongylocentrotus droebachiensis) in Nova Scotia",

abstract = "The disease causing mass mortalities of Strongylocentrotus droebachiensis off Nova Scotia, Canada, from 1980 to 1983 is described. Diseased urchins were characterized by loss of preipheral muscle function in tube feet, spines, and mouth. Signs occurred primarily in the body wall and associated tissues (water vascular system, nerves, spine bases) and coelomic fluid. These symptoms were diffuse and included a general infiltration of tissues with amoebocytes. The coelomic fluid often contained reduced numbers of red and white spherule cells, and clotting was incomplete. Progressive breakdown and fragmentation of muscle cells in tube feet and spine bases resulted in destruction of coherent muscle layers and their replacement by numerous spindle-shaped fibrillar muscle remnants. Coelomic lining cells in the tube feet sloughed off into the lumen, but remained in clumps and phagocytosed muscle remnants.",

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note = "Funding Information: The authors thank B. Scully. M. Primrose, and S. Fry for technical assistance. This research was supported by D.S.S. Contract IOSC.FPlOl-3-0217 (UP). Dr. Scheibling is in receipt of a grant from NSERC.",

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doi = "10.1016/0022-2011(85)90102-8",

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AU - Miller, R. J.

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AB - The disease causing mass mortalities of Strongylocentrotus droebachiensis off Nova Scotia, Canada, from 1980 to 1983 is described. Diseased urchins were characterized by loss of preipheral muscle function in tube feet, spines, and mouth. Signs occurred primarily in the body wall and associated tissues (water vascular system, nerves, spine bases) and coelomic fluid. These symptoms were diffuse and included a general infiltration of tissues with amoebocytes. The coelomic fluid often contained reduced numbers of red and white spherule cells, and clotting was incomplete. Progressive breakdown and fragmentation of muscle cells in tube feet and spine bases resulted in destruction of coherent muscle layers and their replacement by numerous spindle-shaped fibrillar muscle remnants. Coelomic lining cells in the tube feet sloughed off into the lumen, but remained in clumps and phagocytosed muscle remnants.

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Histopathology of the disease causing mass mortality of sea urchins (Strongylocentrotus droebachiensis) in Nova Scotia

Abstract

Bibliographical note

ASJC Scopus Subject Areas

PubMed: MeSH publication types

Access to Document

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