Tolerance of the deposit-feeding Baltic amphipods Monoporeia affinis and Pontoporeia femorata to oxygen deficiency

Johansson, Birgitta

doi:10.3354/meps151135

Cited by 18 publications

(8 citation statements)

References 22 publications

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“…Survival of subadult Monoporeia affinis and subadult Pontoporeia femorata decreased below 2 mg O 2 l -1 , which is in accordance with findings by Johansson (1997b). Macoma balthica was most tolerant to low oxygen conditions of all species studied in our experiments.…”

Section: Survivalsupporting

confidence: 81%

Uptake of diatoms in Baltic Sea macrozoobenthos during short-term exposure to severe and moderate hypoxia

Ejdung¹,

Byrén²,

Wiklund³

et al. 2008

Aquat. Biol.

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The effect of severe and moderate hypoxia on food uptake of benthic macrofauna was studied in the laboratory. The hypothesis was that low oxygen concentrations negatively affect feeding at oxygen levels that have little effect on the studied animals' survival. The bivalve Macoma balthica, the priapulid Halicryptus spinulosus, the amphipods Monoporeia affinis (subadult & juvenile) and Pontoporeia femorata (subadult) were offered the 14 C-labelled diatom Skeletonema costatum in 0.8 to 10.6 mg O 2 l -1 . Feeding was measured as radioactivity uptake. Subadult amphipods were studied one species at a time (single) or together (mixed). Feeding changed in all amphipods at the lowest oxygen concentrations, but no effect was found for M. balthica and H. spinulosus. At the lowest concentration (0.8 mg O 2 l -1 ) feeding by subadult M. affinis (single) was only 17% of the full oxygen saturation (10.6 mg O 2 l -1 ), and, at 1.6 mg O 2 l -1 , 14% of the feeding at 8.9 mg O 2 l -1 . Juvenile M. affinis consumed more labelled algae at 3 mg O 2 l -1 than at higher oxygen concentrations. M. balthica feeding was not affected. Little radioactivity uptake was registered for H. spinulosus at any oxygen concentration, showing that H. spinulosus is not a surface deposit feeder. The amphipods were the most sensitive to week-long oxygen deficiency. Survival decreased significantly in the lowest oxygen concentrations (0.8; 1.6 mg O 2 l -1 ). Of the subadult M. affinis 15 and 65%, respectively, survived, compared with 0 and 58% for P. femorata. Juvenile M. affinis mortality was high in all oxygen concentrations, whereas most M. balthica and H. spinulosus survived.KEY WORDS: Severe hypoxia · Moderate hypoxia · Macrobenthos · 14 C-uptake · Baltic SeaResale or republication not permitted without written consent of the publisher

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Section: Survivalsupporting

confidence: 81%

Uptake of diatoms in Baltic Sea macrozoobenthos during short-term exposure to severe and moderate hypoxia

Ejdung¹,

Byrén²,

Wiklund³

et al. 2008

Aquat. Biol.

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“…In sympatry M. affinis and P. femorata segregate spatially, with the latter species burrowing deeper into the sediment (Hill & Elmgren 1987), thereby exposing itself to more unfavourable oxygen conditions. Furthermore, P. femorata is more sensitive to oxygen stress than M. affinis (Johansson 1997). M. affinis thus appears to be better equipped to deal with brief periods of oxygen deficiency than P. femorata.…”

Section: Discussionmentioning

confidence: 99%

Effects of the coexisting Baltic amphipods Monoporeia affinis and Pontoporeia femorata on the fate of a simulated spring diatom bloom

Bund

Ólafsson²,

Modig³

et al. 2001

Mar. Ecol. Prog. Ser.

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A laboratory experiment was performed to quantify the fate of diatom phytodetritus and how this is affected by the presence of benthic amphipods. A Baltic Sea spring bloom sedimentation event was simulated by adding 14 C-labeled diatoms (Skeletonema costatum) to microcosms with varying densities of the amphipods Monoporeia affinis and Pontoporeia femorata, as well as to microcosms without amphipods, where the sediment was disturbed mechanically. After 1 mo of incubation, 51 to 77% of the added diatom carbon was still in the sediment; 2 mo later 49 to 66% remained. The effect of amphipods on the fate of the phytodetritus differed between species. At near-field density, M. affinis incorporated 6 to 11% of the added 14 C, P. femorata only 1.2%. The results indicate that burrowing slows mineralization, presumably by mixing organic material to anoxic depths in the sediment. The effect of P. femorata on mineralization could not be distinguished from the effect of mechanical stirring. M. affinis feeding and respiration resulted in a significant increase in mineralization; at low densities this compensated for the mixing effect, at high densities M. affinis feeding resulted in enhanced net mineralization.

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“…In general, bottom-dwelling organisms like bivalves and polychaetes are more tolerant than mobile fauna (Diaz and Rosenberg, 1995;Theede et al, 1969). Crustaceans are among the most sensitive to oxygen deficiency, with the exception of the isopod S. entomon (Johansson, 1997;Normant and Szaniawska, 2000). Besides species-specific tolerance towards hypoxia/anoxia, hypoxia-induced mortality is highly temperature dependent with mortality rates increasing with water temperature (Vaquer-Sunyer and Duarte, 2011).…”

Section: Hypoxia-induced Mortalitymentioning

confidence: 98%

Modelling macrofaunal biomass in relation to hypoxia and nutrient loading

Timmermann

Norkko

Janas

et al. 2012

Journal of Marine Systems

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Tolerance of the deposit-feeding Baltic amphipods Monoporeia affinis and Pontoporeia femorata to oxygen deficiency

Cited by 18 publications

References 22 publications

Uptake of diatoms in Baltic Sea macrozoobenthos during short-term exposure to severe and moderate hypoxia

Uptake of diatoms in Baltic Sea macrozoobenthos during short-term exposure to severe and moderate hypoxia

Effects of the coexisting Baltic amphipods Monoporeia affinis and Pontoporeia femorata on the fate of a simulated spring diatom bloom

Modelling macrofaunal biomass in relation to hypoxia and nutrient loading

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