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Oxygen Consumption in a Tropical Beach Amphipod, Talorchestia Margaritae Stephensen: Effects of Size and Temperature

Oxygen Consumption in a Tropical Beach Amphipod, Talorchestia Margaritae Stephensen: Effects of... OXYGEN CONSUMPTION IN A TROPICAL BEACH AMPHIPOD, TALORCHESTIA MARGARITAE STEPHENSEN: EFFECTS OF SIZE AND TEMPERATURE BY B. J. VENABLES Texas Research and Analysis Co., P.O.Box 215, Denton, Texas 76201, U.S.A. INTRODUCTION Talorchestia margaritae Stephensen, 1945, is the dominant decomposer of vegetation (principally Thalassia testudinum) which accumulates on beaches near Cumana in eastern Venezuela. On some beaches densities reach 30-40,000 individuals m-z. The abundance and obvious ecological importance of this species prompted the initiation of a study of its energetics. Loss of metabolic heat is a major energy flux. The relative importance of this channel of energy flow is emphasized in allochthonous decomposer com- munities which lack primary production (Reichle, 1968). Thus the metabolic rate of T. margaritae, as the dominant member of the local allochthonous beach detritus communities, is of special importance. Latitudinal effects on metabolism, even within closely related taxa, are often significant (e.g. Scholander et al., 1953; Wohlschlag, 1960, 1963; Morris, 1961; Vernberg, 1962; Venables et al., 1977); however, detailed metabolism studies of talitrid amphipods have been reported only for temperate species (Edwards & Irving, 1943; Edwards, 1946; Clark, 1955). Thus, the objectives of the present study were to establish metabolic rate-weight equations over the natural http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Crustaceana Brill

Oxygen Consumption in a Tropical Beach Amphipod, Talorchestia Margaritae Stephensen: Effects of Size and Temperature

Venables, B.J.
Crustaceana , Volume 41 (1): 89 – Jan 1, 1981
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References (8)

Publisher
Brill
Copyright
© 1981 Koninklijke Brill NV, Leiden, The Netherlands
ISSN
0011-216x
eISSN
1568-5403
DOI
10.1163/156854081X00101
Publisher site
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Abstract

OXYGEN CONSUMPTION IN A TROPICAL BEACH AMPHIPOD, TALORCHESTIA MARGARITAE STEPHENSEN: EFFECTS OF SIZE AND TEMPERATURE BY B. J. VENABLES Texas Research and Analysis Co., P.O.Box 215, Denton, Texas 76201, U.S.A. INTRODUCTION Talorchestia margaritae Stephensen, 1945, is the dominant decomposer of vegetation (principally Thalassia testudinum) which accumulates on beaches near Cumana in eastern Venezuela. On some beaches densities reach 30-40,000 individuals m-z. The abundance and obvious ecological importance of this species prompted the initiation of a study of its energetics. Loss of metabolic heat is a major energy flux. The relative importance of this channel of energy flow is emphasized in allochthonous decomposer com- munities which lack primary production (Reichle, 1968). Thus the metabolic rate of T. margaritae, as the dominant member of the local allochthonous beach detritus communities, is of special importance. Latitudinal effects on metabolism, even within closely related taxa, are often significant (e.g. Scholander et al., 1953; Wohlschlag, 1960, 1963; Morris, 1961; Vernberg, 1962; Venables et al., 1977); however, detailed metabolism studies of talitrid amphipods have been reported only for temperate species (Edwards & Irving, 1943; Edwards, 1946; Clark, 1955). Thus, the objectives of the present study were to establish metabolic rate-weight equations over the natural

Journal

Crustaceana – Brill

Published: Jan 1, 1981

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