Gut Fullness of the Deposit-Feeding Amphipod, Pontoporeia hoyi, in Southeastern Lake Michigan

Quigley, Michael A.

doi:10.1016/s0380-1330(88)71547-6

Cited by 39 publications

(24 citation statements)

References 39 publications

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“…These expcrimcnts failed because the animals did not eat enough sediment to allow reliable measurements. This finding is consistent with observations by Moore (1979), Quigley (1988), and Dermott and Corning (1988) indicating that in nature P. hoyi feeds less when sediment food quality is low.…”

Section: Discussionsupporting

confidence: 92%

Feeding depths and organic absorption for the deposit feeding benthic amphipods Pontoporera affinis and Pontoporeia femorata

Elmgren

1989

Limnology & Oceanography

100

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Using fluorescent particles as sediment markers, we show that the congeneric, deposit-feeding amphipods Ponloporeia afinis and Pontoporeia femorata feed almost exclusively on the surface layer (upper centimeter) of sediment, even though they may spend much of their time deeper. Pontoporeia afinis feeds more rapidly than P. femorata. There was some evidence that food intake decreased at night for P. a&his, but not for P. femorata.The two species were equally good at absorbing sedimentary organic carbon, both absorbing -40% from surficial and 28% from deeper sediment. Neither species was very selective in ingesting the organic fraction of sediment.Pontoporeiafimorata resides deeper in the sediment than its morphologically similar congener P. afinis, and this dilIcrence is enhanced in sympatric populations. Yet, there is no evidence of food partitioning between the two species. An innate tendency of P. afinis to move up, and P. fimorata down, upon disturbance from burrowing activities of neighbors may be the primary cause of the enhanced vertical stratification in sympatric populations. It may result in differential susceptibility to predation. In addition, P. afinis swims more actively than P. femorata and should more easily find new patches of high-quality, surficial sediment. Thus predation and microhabitat partitioning may contribute to the coexistence commonly observed in the two species, in spite of suspected exploitative food competition.

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Section: Discussionsupporting

confidence: 92%

Feeding depths and organic absorption for the deposit feeding benthic amphipods Pontoporera affinis and Pontoporeia femorata

Elmgren

1989

Limnology & Oceanography

100

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“…6) supports the previous observations of a cessation of feeding at the onset of maturation in Diporeia hoyi (Moore 1979, Quigley 1988. However, the gravids of cohort 1990 gained 60 % of metabolic energy from the environment (Fig.…”

Section: Bioenergetic Characteristics Of the Study Populationsupporting

confidence: 88%

Ecophysiology of the benthic amphipod Monoporeia affinis in an open-sea area of the northern Baltic Sea:seasonal variations in body composition, with bioenergetic considerations

Kk¹

1996

Mar. Ecol. Prog. Ser.

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A deep-living, open-sea population of Monoporeia affinis from the northern Baltic Sea was studied for seasonal variations in the gross biochemical, lipid class and elemental composition during 1991 to 1993. The seasonal cycle in the composition of this benthic, deposit-feeding amphipod was largely determined by the brief period of spring phytoplankton bloom sedimentation and the longlasting deficiency of good-quality nutrition during late autumn-early spring. The level (% dry wt) of lipid was lowest in March-April (21 to 30%, range: interannual variation), increased rapidly in early summer (27 to 43%) and peaked in the autumn (38 to 44 %). Reciprocal to lipid, the level of protein was highest in the spring (19 to 29%) and lowest in the autumn (17 to 23%). Carbon and nitrogen levels followed closely the patterns of lipid and protein, respectively. Triacylglycerols were invariably the main lipid class (67 to 95% of total lipids), while phospholipids formed 4 to 23% and other classes <7 % each. Due to high variability in biochemical composition, the energetic value of the body matter of M. affinis showed great seasonal variation. Using body composition and previously determined metabolic rates, calculations showed distinct seasonal and life-cycle variability in the bioenergetic strategy of the amphipods. Interannual variability in the body composition of the amphipods was noted, especially between 1991 and the 2 follo.wing years. Previously recorded long-term oscillations in the abundance and biomass of M. affinis populations and the relation of these oscillations to pelagic events and sedimentation is discussed in the light of the present results.

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“…Amphipods like Monoporeia affinis show an intermittent feeding strategy, and gut fullness is primarily observed after the spring phytoplankton bloom (Dermott & Corning 1988, Quigley 1988. Later studies on Diporeia spp., a closely related North American freshwater species, have shown that gut fullness declines after the spring bloom, but increases later in the autumn (Guiguer & Barton 2002).…”

Section: Introductionmentioning

confidence: 99%

Reproduction disorders in the benthic amphipod Monoporeia affinis: an effect of low food resources

Sundelin¹,

Rosa²,

Eriksson-Wiklund³

2008

Aquat. Biol.

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The aim of the present study was to investigate the influence of food availability on reproduction by comparing the response of reproductive biomarkers of a deposit-feeding amphipod Monoporeia affinis in 2 Swedish lentic environments (Lake Vänern and Lake Vättern) differing in eutrophication level, during the period between 1995 and 2002. In ultraoligotrophic Lake Vättern, a very low fecundity (living eggs female ) and the percent of females with dead broods were recorded. A significant negative correlation between fecundity and (1) undifferentiated eggs and (2) dead eggs and broods were obtained in both lakes. Amphipods collected in Lake Vättern in 2001 showed significantly lower concentrations of lipids -mainly triacylglycerols (TAG) -and of fatty acids (FAs) than amphipods collected in the more eutrophic Lake Vänern. Dramatically increased spring bloom diatom abundance in Lake Vättern resulted in increased fecundity and lipid and fatty acid concentrations (namely monounsaturated fatty acids, MUFA) and decreased embryo aberrations. A significant relationship between fecundity and diatom biovolume in Lake Vänern and total algal biovolume in Lake Vättern was found. No other alga taxa influenced the fecundity. In Lake Vättern total algal biovolume was negatively related to undifferentiated eggs. MUFA and saturated fatty acids (SFAs) seem to be important for vitellogenesis and oogenesis and also constitute fuel during embryogenesis. Other environmental variables in bottom waters (i.e. oxygen, pH and temperature) and sediment organic content did not influence the reproduction variables. Our findings strongly suggest a relationship between embryo aberrations (e.g. undifferentiated eggs and dead broods) and low food resources. KEY WORDS: Reproduction · Fatty acids · Embryo aberrations · Food deficiency · Monoporeia affinisResale or republication not permitted without written consent of the publisher OPEN PEN ACCESS CCESS

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Gut Fullness of the Deposit-Feeding Amphipod, Pontoporeia hoyi, in Southeastern Lake Michigan

Cited by 39 publications

References 39 publications

Feeding depths and organic absorption for the deposit feeding benthic amphipods Pontoporera affinis and Pontoporeia femorata

Feeding depths and organic absorption for the deposit feeding benthic amphipods Pontoporera affinis and Pontoporeia femorata

Ecophysiology of the benthic amphipod Monoporeia affinis in an open-sea area of the northern Baltic Sea:seasonal variations in body composition, with bioenergetic considerations

Reproduction disorders in the benthic amphipod Monoporeia affinis: an effect of low food resources

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