Effect of hypoxia on the prey-handling behaviour of Carcinus maenas feeding on Mytilus edulis

Brante, Antonio; Hughes, Roger N.

doi:10.3354/meps209301

Cited by 34 publications

(18 citation statements)

References 21 publications

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“…In adults of marine molluscs exposed to hypoxia, the reduction in oxygen consumption results in lower growth rates (Das and Stickle, 1991;Das and Stickle, 1993;Sobral and Widdows, 1997;Harris et al, 1999). This effect can be explained by a decrease in the capacity to catch, ingest and process the food under hypoxia (Das and Stickle, 1991;Sobral and Widdows, 1997;Brante and Hughes, 2001). A similar effect on growth rate was observed in larvae of the marine gastropods Mytilus edulis and Nassarius festivus exposed to hypoxia, which seems to be related to decreasing ciliary activity at low levels of oxygen (Wang and Widdows, 1991;Chan et al, 2008).…”

Section: Introductionmentioning

confidence: 67%

Limiting factors to encapsulation: the combined effects of dissolved protein and oxygen availability on embryonic growth and survival of species with contrasting feeding strategies

Brante

Fernández

Viard

2009

Journal of Experimental Biology

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SUMMARYEncapsulation is a common strategy among marine invertebrate species. It has been shown that oxygen and food availability independently constrain embryo development during intracapsular development. However, it is unclear how embryos of species with different feeding strategies perceive these two constraints when operating jointly. In the present study, we examined the relative importance of dissolved albumen, as a food source, oxygen condition and their interaction on embryonic growth and the survival of two calyptraeid species, Crepidula coquimbensis and Crepidula fornicata, exhibiting different embryo feeding behaviours (i.e. presence vs absence of intracapsular cannibalism). Two oxygen condition treatments (normoxia and hypoxia) and three albumen concentrations (0, 1 and 2 mg l -1 ) were studied. In addition, albumen intake by embryos was observed using fluorescence microscopy. Our study shows that embryos of both species incorporated dissolved albumen but used a different set of embryonic organs. We observed that embryo growth rates in C. coquimbensis were negatively affected only by hypoxic conditions. Conversely, a combination of low albumen concentration and oxygen availability slowed embryo growth in C. fornicata. These findings suggest that oxygen availability is a limiting factor for the normal embryo development of encapsulated gastropod species, regardless of feeding behaviour or developmental mode. By contrast, the effect of dissolved albumen as an alternative food source on embryo performance may depend on the feeding strategy of the embryos.

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Section: Introductionmentioning

confidence: 67%

Limiting factors to encapsulation: the combined effects of dissolved protein and oxygen availability on embryonic growth and survival of species with contrasting feeding strategies

Brante

Fernández

Viard

2009

Journal of Experimental Biology

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“…During hypoxia, for example, behaviour related to respiration can increase (siphon activity of bivalves; Rosenberg et al 1991), and those not related to respiration can decrease (the duration of amphipod swimming activity ;Johansson 1997). This also pertains to prey-handling times, which take longer under hypoxic conditions (shore crab Carcinus maenas; Brante and Hughes 2001). In the present study, prey handling and consumption also appeared to be prolonged by anoxia.…”

Section: Discussionmentioning

confidence: 54%

“…Reproduction and growth may also be aVected (Breitburg 1992;Miller et al 2002;StierhoV et al 2006). Beyond these direct eVects, there is increasing evidence for indirect eVects (Eby et al 2005) such as changes in competition and predation (Brante and Hughes 2001;Sagasti et al 2001;Decker et al 2004). Although mobile benthos are able to migrate out of the aVected area, the less mobile fauna-unable to escape or avoid hypoxic watersexhibit a series of behavioural patterns in response to decreasing oxygen concentrations (Mistri 2004).…”

Section: Introductionmentioning

confidence: 99%

Sea anemones and brittle stars: unexpected predatory interactions during induced in situ oxygen crises

2008

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During oxygen crises, benthic faunas exhibit a series of behavioural patterns that reXect the duration and severity of the event. During artiWcially induced oxygen deWciencies at 24 m depth in the Northern Adriatic Sea, we photographically documented predation by the sea anemones Cereus pedunculatus (Pennant, 1777) and Calliactis parasitica (Couch, 1842) on the brittle star Ophiothrix quinquemaculata (DelleChiaje, 1828). Five predatory events were recorded with four anemones during nine deployments totalling 817 h of observation. Under near-anoxic conditions, individuals of both actinians made contact with, pulled in and consumed the brittle stars. The duration of each predatory event was 1.5-7.5 h. In three of the Wve events, brittle star remains were regurgitated after an additional 2.0-12.5 h of digestion by the anemones. Our time-lapse sequences demonstrate that oxygen deWciency, beyond eliciting a series of speciWc behaviours in members of each species, also promotes previously unobserved interspeciWc interactions. Our results show that sea anemones are not only highly resistant to anoxia, but may also beneWt by taking advantage of prey that are more vulnerable to anoxic conditions.

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“…Activity, burrowing and depth distribution of macrobenthic animals in the sediment decrease under poor oxygen conditions (Johansson 1997a, Tallqvist 2001. Further, reproductive success, somatic growth and predator-prey interactions, such as prey handling times, are also affected by oxygen conditions (Sand-berg 1994, Brante & Hughes 2001, Eriksson Wiklund & Sundelin 2001. Feeding by macrobenthos under poor oxygen conditions has been reported as weight loss of food available (Das & Stickle 1993), estimated from prey survival data (Sandberg 1994), or given as clearance rate (Sobral & Widdows 1997).…”

Section: Introductionmentioning

confidence: 99%

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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Effect of hypoxia on the prey-handling behaviour of Carcinus maenas feeding on Mytilus edulis

Cited by 34 publications

References 21 publications

Limiting factors to encapsulation: the combined effects of dissolved protein and oxygen availability on embryonic growth and survival of species with contrasting feeding strategies

Limiting factors to encapsulation: the combined effects of dissolved protein and oxygen availability on embryonic growth and survival of species with contrasting feeding strategies

Sea anemones and brittle stars: unexpected predatory interactions during induced in situ oxygen crises

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

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