The Energy Budget of a Population of the Antarctic Isopod Serolis polita

Luxmoore, Richard

doi:10.1007/978-3-642-82275-9_55

Cited by 19 publications

(19 citation statements)

References 20 publications

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“…Thus, GP in benthic invertebrates seems to be independent of body mass, whereas annual gonad production is positively related to body mass, indicating that a n increase in gonad output may be one of the evolutionary advantages of larger body size. Kemp et al (1985) Rhepoxynius abronius Crustacea 0.0062 283.5 0.361 Luxmoore (1981Luxmoore ( , 1982Luxmoore ( . 1985 As indicated by Fig.…”

Section: Discussionmentioning

confidence: 99%

Temperature and reproductive metabolism in macrobenthic populations

Brey

1995

Mar. Ecol. Prog. Ser.

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Clarke (1987; Mar Ecol Prog Ser 38:89-99) analysed the effects of variation in maintenance metabolic costs with temperature on reproductive metabolism in poikilotherrnic animals. Based on model calculations, he concluded that annual mass-speclfic gonad production (GP) and the share of assimilated energy used for reproductive purposes (RE) are affected in opposite ways by temperature.In animals of similar size and ecology either GP wdl decrease with decreasing temperature if RE remains constant or RE will increase with decreasing temperature If GP remains constant. Empirical data on productivity of marine benthic invertebrate populations suggest that the evolutionary adaptation of gonad n~etabolisn~ tends toward changing GP and maintaining RE independent of temperature.

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Section: Discussionmentioning

confidence: 99%

Temperature and reproductive metabolism in macrobenthic populations

Brey

1995

Mar. Ecol. Prog. Ser.

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“…The best seasonal study of the energetics of a polar marine invertebrate to date is that of the benthic isopod Serolis polita at Signy Island by Luxmoore (1985). Here temperature is seasonally very stable but ,production is intensely seasonal.…”

Section: Why Temperature?mentioning

confidence: 99%

“…Data are for an individual female Serolis polita (redrawn fromLuxmoore 1985). Data are for an individual female Serolis polita (redrawn fromLuxmoore 1985).…”

mentioning

confidence: 99%

Seasonal Acclimatization and Latitudinal Compensation in Metabolism: Do They Exist?

Clarke¹

1993

Functional Ecology

206

190

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“…Reproduction in Krill and whales is low, and starts relatively late in life. Krill and whales are representatives of the high-energy cost strategy of survival under highly seasonal conditions, whereas sponges and echinoderms represent the low-energy cost strategy which is also adopted by benthic crustaceans (Clarke 1985, Luxmoore 1985). …”

Section: The Krill Systemmentioning

confidence: 99%

Antarctic Marine Food Webs

Hempel

1985

Antarctic Nutrient Cycles and Food Webs

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Summary. Traditional views on the productivity of the SouthernOcean have changed greatly. High primary production in the shelf region and near the pack-ice and the short diatom-Krill-whale food chain were first taken as indications of a very large renewable resource. However, it is now known that primary production in the open parts of the Southern Ocean is relatively low, and Soviet estimates of Krill, Euphausia superba, stocks have decreased by an order of magnitude. The pelagic Southern Ocean contains 3 major zones which, although they interact, may for convenience be considered as having distinct food webs. These zones are: the ice-free zone of the West Wind Drift dominated by herbivorous copepods, salps and small euphausiids; the seasonal pack-ice zone of the East Wind Drift and adjacent fronts and eddies in which Krill is the dominant element; and the permanent sea-ice zone near the Antarctic continent and its ice shelves where zooplankton biomass is low and, thus, predators are scarce. The Krill system is a product of a long evolutionary process in isolation. It is characterized by high seasonality in light and ice cover but otherwise stable conditions of low temperature and high nutrient supply. Within the Krill-dominated food chain unusually large size steps, and high energy demands for maintenance and swimming, require large concentrations of food to keep the effort for searching and feeding low during the short summer season. This pelagic system running on high energy costs is in contrast to the low energy system of the rich Antarctic benthos, particularly in pack-ice regions. Because survival in the Antarctic is energetically expensive, there is little net gain in the Krill system, despite its short food chain. However, the large biomass stored in Krill swarms and in large vertebrates has made the Krill system attractive to exploitation by man. Antarctic communities typically exhibit K-strategies but paradoxically there is great environmental variability in the pack-ice zone. Any model of food chain dynamics, or any management strategy, must take into account not only the low efficiency of the food chain but also the variability of its key elements.

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The Energy Budget of a Population of the Antarctic Isopod Serolis polita

Cited by 19 publications

References 20 publications

Temperature and reproductive metabolism in macrobenthic populations

Temperature and reproductive metabolism in macrobenthic populations

Seasonal Acclimatization and Latitudinal Compensation in Metabolism: Do They Exist?

Antarctic Marine Food Webs

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