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Identification of microdetritus derived fromSpartina and its occurrence in the water column and intertidal sediments of Cumberland Basin, Bay of Fundy

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Abstract

A cellulose-specific staining procedure employing Herzberg’s chlor-zinc-iodide solution was developed to aid in the identification of microdetritus derived fromSpartina alterniflora and tested on samples of suspended and sedimented particulate matter collected in the Cumberland Basin at the head of the Bay of Fundy. Not all of the particles reacting positively to the stain could have been identified as originating fromSpartina on the basis of morphology alone, and the stain improved speed and confidence in identification even when particles could be identified morphologically.Spartina dominated particles greater than 100 μm while most of the smaller particles were amorphous aggregates of uncertain origin. In April 1985, at the start of the salt-marsh growing season, the average concentration of suspended microdetritus derived fromSpartina in Cumberland Basin surface water was 129 mg C m−3 or 0.3–2.7% of the particulate organic carbon. The average concentration in intertidal sediments was 0.036 mg C g−1 or 0.2–0.9% of the sediment organic carbon. Summing all reservoirs in the sediment (to a depth of 1 cm) and water column, the total amount of detritus originating fromSpartina in Cumberland Basin is 10–24% of the estimated annual net primary production of low marshS. alterniflora.

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Author notes

  1. P. Schwinghamer

    Present address: Northwest Atlantic Fisheries Centre, P.O. Box 5667, A1C 5X1, St. Johns, Newfoundland, Canada

Authors and Affiliations

  1. Department of Fisheries and Oceans, Bedford Institute of Oceanography, P.O. Box 1006, B2Y 4A2, Dartmouth, N.S., Canada

    P. J. Cranford, P. Schwinghamer & D. C. Gordon

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Cranford, P.J., Schwinghamer, P. & Gordon, D.C. Identification of microdetritus derived fromSpartina and its occurrence in the water column and intertidal sediments of Cumberland Basin, Bay of Fundy. Estuaries 10, 108–117 (1987). https://doi.org/10.2307/1352174

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  • DOI: https://doi.org/10.2307/1352174

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