Uptake of sedimentary organic matter by the deposit-feeding Baltic amphipods Monoporeia affinis and Pontoporeia femorata

Byrén, Lars; Ejdung, Gunilla; Elmgren, Ragnar

doi:10.3354/meps313135

Cited by 29 publications

(35 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…La marcada diferencia en los patrones de preferencia de juveniles y adultos, demuestra la importancia de considerar la variabilidad intraespecífica de los organismos, en estudios de preferencias alimentarias (Sandlin & Willig 1993, Poore 1994, Pavia et al 1999. Aun cuando existe una variedad de trabajos que muestran que varios anfípodos revelan preferencias por distintos ítemes alimentarios (Karez et al 2000, Pennings et al 2000, Adin & Riera 2003, pocos estudios se han realizado para examinar eventuales diferencias intraespecíficas en la selección de la dieta (Salema 1987, Byrén et al 2006. Similar a los resultados de este trabajo, Pavia et al (1999), mostraron que mientras los adultos del anfípodo Gammarus locusta (Linnaeus, 1758) prefirieron los macroepífitos del alga parda Ascophyllum nodosum (Linnaeus) Le Jolis, los juveniles también se alimentaron de las partes meristemáticas de esa macroalga.…”

Section: Discussionunclassified

“…Similar a los resultados de este trabajo, Pavia et al (1999), mostraron que mientras los adultos del anfípodo Gammarus locusta (Linnaeus, 1758) prefirieron los macroepífitos del alga parda Ascophyllum nodosum (Linnaeus) Le Jolis, los juveniles también se alimentaron de las partes meristemáticas de esa macroalga. A su vez, Byrén et al (2006), encontraron que los juveniles del anfípodo Pontoporeia femorata (Kröyer) difirieron significativamente en los patrones alimentarios con sus adultos conespecíficos: mientras los juveniles consumen más fitodetritus fresco, los adultos consumen material más antiguo. Debido a que la palatabilidad de las macroalgas puede cambiar dependiendo del tiempo transcurrido desde el desprendimiento de las mismas (Rodríguez 1999, Pennings et al 2000, este aspecto debería ser considerado en estudios futuros, a fin de ganar mayor conocimiento sobre los patrones alimentarios de este especie.…”

Section: Discussionunclassified

“…Por ejemplo Rothäusler & Thiel (2006) Conocer los factores que determinan las preferencias alimentarias de los consumidores herbívoros, es uno de los aspectos más complejos en este tipo de estudios (e.g., Pennings & Paul 1992, Penning et al 1998. Aspectos tales como la amplia variedad de rasgos (e.g., características nutricionales y estructurales) que presentan las macrófitas (Steneck & Watling 1982, Pennings et al 1998, McClintock & Baker 2001, o las diferencias inter e intraespecíficas de los requerimientos nutricionales de los herbívoros (Pennings et al 2000, Byrén et al 2006) dificultan la interpretación de los resultados. Por ejemplo, Gómez & Westermeier (1995) estudiaron los contenidos energéticos y constituyentes orgánicos (proteínas, lípidos, carbohidratos y manitol) en las mismas especies de macroalgas utilizadas en este estudio y encontraron que L. nigrescens tiene en general un valor nutritivo más bajo que el de las otras especies, con contenidos de proteínas, carbohidratos solubles y manitol significativamente más bajos que los de M. pyrifera y con valores de energía total y carbohidratos solubles y manitol significativamente más bajos que los de D. antarctica.…”

Section: Discussionunclassified

“…De este modo, los juveniles estarían limitados a consumir solo presas de menor tamaño. Otra posibilidad plausible para explicar las diferencias en las preferencias alimentarias que muestran los estados ontogénicos de O. tuberculata, son las diferencias en los requerimientos nutricionales de juveniles y adultos (Byrén et al 2006). Al menos dos aspectos diferencian a esos estados y que podrían influir en sus requerimientos energéticos y nutricionales (Abrahams & Dill 1989).…”

Section: Discussionunclassified

See 3 more Smart Citations

Macroalgas varadas sobre la superficie de una playa arenosa del sur de Chile: preferencias alimentarias y de habitat de juveniles y adultos de Orchestoidea tuberculata (Nicolet), (Amphipoda, Talitridae)

Duarte

Jaramillo

Contreras

2008

Rev. chil. hist. nat.

View full text Add to dashboard Cite

Section: Discussionunclassified

See 2 more Smart Citations

Macroalgas varadas sobre la superficie de una playa arenosa del sur de Chile: preferencias alimentarias y de habitat de juveniles y adultos de Orchestoidea tuberculata (Nicolet), (Amphipoda, Talitridae)

Duarte

Jaramillo

Contreras

2008

Rev. chil. hist. nat.

View full text Add to dashboard Cite

“…However, it is still likely that higher sedimentation did occur in the A-webs. The amphipod weights in the A and B-webs, respectively, at the first sampling were equal in spite of 5 times higher production in the Bwebs, which indicate that both the lower nutritional value in the bacterial web and the lower settling of C in those webs are of importance.Since Monoporeia affinis is a deposit feeder with phytoplankton as the main C source and it prefers to feed from the sediment surface (Byrén et al 2006), it might seem obvious that phytoplankton would be a better food source than bacteria. However, a previous study by Eriksson examined the effects of food quantity and quality on amphipod reproduction and reported that fecundity was positively correlated to sediment C content, but the effects on reproduction of different algal diets were small.…”

mentioning

confidence: 99%

Effects of warming and shifts of pelagic food web structure on benthic productivity in a coastal marine system

Wiklund¹,

Dahlgren²,

Sundelin³

et al. 2009

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

It has been predicted that climate change will lead to increased temperature and precipitation in northern latitudes, which in turn may lead to brownification of coastal sea areas. This will increase the importance of the heterotrophic microbial food web in areas like the northern Baltic Sea. Such a structural change in the pelagic food web would hamper benthic productivity, since microheterotrophs have lower settling rates than phytoplankton. We tested how variation in temperature and alteration of the pelagic food web structure affected the productivity of a key benthic species, the amphipod Monoporeia affinis, and the pelagic-benthic food web efficiency (FWE). Using water from the northern Baltic Sea, a mesocosm experiment was performed in which the temperature was altered by 5°C. The structure of the pelagic food web changed from one based on algae to one based on bacteria. Amphipod productivity was 3 times higher and FWE was 25 times higher in the algae than in the bacteria-based food web, showing that an altered pelagic food web will have severe effects on benthic productivity. Temperature variation, on the other hand, did not cause any changes in either growth of M. affinis or FWE. Our data indicate that indirect effects of climate change, leading to structural changes in the pelagic food web, will have much more severe effects on benthic productivity than the direct effect of increased temperature.KEY WORDS: Climate change · Altered pelagic food web structure · Decreased benthic productivity · Pelagic-benthic coupling · Monoporeia affinis Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 396: [13][14][15][16][17][18][19][20][21][22][23][24][25] 2009 Monoporeia affinis is a deposit feeder, which preferably feeds on fresh, newly settled phytoplankton (Aljetlawi et al. 2000). Between periods of phytoplankton blooms, the amphipods can survive without food, or subsist on low quality food, by using energy stored as lipids. This strategy is facilitated by low temperatures in their soft-bottom habitat (Lehtonen 1994). Their main period of growth is in the spring after the phytoplankton bloom (Cederwall 1977, Lehtonen & Andersin 1998. The effects of seasonal sedimentation patterns on growth and population dynamics of benthic organisms demonstrate the importance of the pelagic-benthic coupling (Karlson et al. 2007).Basal pelagic production (phytoplankton primary production + bacterial production) in the Gulf of Bothnia varies along a north-south gradient from ~30 to 65 g C m -2 yr -1 (Samuelsson et al. 2006). In the Bothnian Bay (extreme north), about 50% of the basal production is contributed by bacteria and 50% by phytoplankton. In the Bothnian Sea (south), 75% of the production is contributed by phytoplankton and 25% by bacteria. The reason for relatively high bacterial production in the north is a combination of low nutrient availability and a high inflow of allochthonous organic C (Sandberg et al. 2004). This causes an uncoupling of the bacterial and ...

show abstract

Sediment organic carbon integrates changing environmental conditions to predict benthic assemblages in shallow Arctic seas

Lovvorn

North

Grebmeier

et al. 2018

Aquatic Conservation

View full text Add to dashboard Cite

In marine spatial planning, conserving adequate habitats and the food webs they support requires delineating habitats and projecting future trends. For bottom‐feeding marine birds and mammals, repeated benthic sampling over large areas to document changes and to develop predictive models of prey dispersion is quite costly. More easily monitored variables that relate strongly to the biomass and structure of benthic assemblages, and are more readily predicted from physical models of climate change, would facilitate planning efforts. The organic carbon (OC) content of sediments integrates diverse physical and biotic processes, and can be less variable over time than primary production, salinity, temperature, or position of water masses. Sediment OC further subsumes inputs at the base of food webs that can limit carbon flows to higher taxa. For the northern Bering Sea, this study explored the utility of sediment OC as a predictor of benthic assemblage types. Cluster analysis and multi‐dimensional scaling distinguished three main types along a gradient of sediment OC. The assemblage for highest sediment OC had a much greater biomass of brittlestars, diverse marine worms, and two mid‐sized, thinner‐shelled bivalves selected as prey by diving sea ducks. The assemblage for lowest sediment OC lacked brittlestars, had a much greater biomass of amphipods sought by gray whales (Eschrichtius robustus), and had a much higher biomass of two often larger or thicker‐shelled bivalves commonly targeted by walruses (Odobenus rosmarus). Areas of exceptionally low sediment OC tended towards dominance by sand dollars with low foraging value. Our study shows that sediment OC has promise as a proxy for monitoring and predicting changes in important prey assemblages in a given region. Models that link predicted hydrographic patterns to lateral advection of phytodetritus, and the resulting sediment OC, may further allow the use of physical climate models to project the future dispersion of benthic habitats for endothermic predators.

show abstract

Uptake of sedimentary organic matter by the deposit-feeding Baltic amphipods Monoporeia affinis and Pontoporeia femorata

Cited by 29 publications

References 37 publications

Macroalgas varadas sobre la superficie de una playa arenosa del sur de Chile: preferencias alimentarias y de habitat de juveniles y adultos de Orchestoidea tuberculata (Nicolet), (Amphipoda, Talitridae)

Macroalgas varadas sobre la superficie de una playa arenosa del sur de Chile: preferencias alimentarias y de habitat de juveniles y adultos de Orchestoidea tuberculata (Nicolet), (Amphipoda, Talitridae)

Effects of warming and shifts of pelagic food web structure on benthic productivity in a coastal marine system

Sediment organic carbon integrates changing environmental conditions to predict benthic assemblages in shallow Arctic seas

Contact Info

Product

Resources

About