Adaptive diversity in congeneric coastal crabs: Ontogenetic patterns of osmoregulation match life-history strategies in Armases spp (Decapoda, Sesarmidae)

Anger, Klaus; Torres, Gabriela; Charmantier‐Daures, Mireille; Charmantier, Guy

doi:10.1016/j.jembe.2008.08.009

Cited by 19 publications

(21 citation statements)

References 44 publications

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“…The capacity to hyper-osmoregulate is later recovered in the last larval stage, the megalopa, which re-invades estuarine habitats to recruit to the adult populations (Luppi et al 2002). Similar relationships between larval capabilities of osmoregulation and patterns of larval dispersal were also found in Armases roberti, a crab that releases its larvae in waters with very low salinity (Anger et al 2008b). It thus appears that it is advantageous to decrease and/or suppress the structures and functions that are responsible for osmoregulation in ontogenetic stages or species where this capability is not needed.…”

Section: Discussionmentioning

confidence: 65%

“…Armases miersii: Anger 1995; Anger et al 2008b; Rhithropanopeus harrisii: Chen et al 1997;Crangon crangon: Paula 1998). Independent of life-history strategies, the larvae of most estuarine species are thus exposed to conditions of osmotic stress at least during some developmental period.…”

Section: Introductionmentioning

confidence: 99%

“…In recent years, studies on the ontogeny of osmoregulation have revealed the presence of physiological adaptations to osmotic stress in early life history stages of several species (Charmantier 1998). In some species, both osmoconforming and osmoregulating larval stages have been identified in laboratory experiments, apparently related to changing ecological conditions during ontogenetic migrations in the natural environment (Charmantier et al 2002, Cieluch et al 2007, Anger et al 2008b.…”

Section: Introductionmentioning

confidence: 99%

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Growth, tolerance to low salinity, and osmoregulation in decapod crustacean larvae

Torres¹,

Giménez²,

Anger³

2011

Aquat. Biol.

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Marine invertebrate larvae suffer high mortality due to abiotic and biotic stress. In planktotrophic larvae, mortality may be minimised if growth rates are maximised. In estuaries and coastal habitats however, larval growth may be limited by salinity stress, which is a key factor selecting for particular physiological adaptations such as osmoregulation. These mechanisms may be energetically costly, leading to reductions in growth. Alternatively, the metabolic costs of osmoregulation may be offset by the capacity maintaining high growth at low salinities. Here we attempted identify general response patterns in larval growth at reduced salinities by comparing 12 species of decapod crustaceans with differing levels of tolerance to low salinity and differing osmoregulatory capability, from osmoconformers to strong osmoregulators. Larvae possessing tolerance to a wider range in salinity were only weakly affected by low salinity levels. Larvae with a narrower tolerance range, by contrast, generally showed reductions in growth at low salinity. The negative effect of low salinity on growth decreased with increasing osmoregulatory capacity. Therefore, the ability to osmoregulate allows for stable growth. In euryhaline larval decapods, the capacity to maintain high growth rates in physically variable environments such as estuaries appears thus to be largely unaffected by the energetic costs of osmoregulation.KEY WORDS: Biomass growth · Crustacean larvae · Physiological plasticity · Osmoregulation · Osmotic stress · SalinityResale or republication not permitted without written consent of the publisher

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Section: Discussionmentioning

confidence: 65%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Growth, tolerance to low salinity, and osmoregulation in decapod crustacean larvae

Torres¹,

Giménez²,

Anger³

2011

Aquat. Biol.

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“…Clearly, this adult behavior suggests that larval export ability is much different in these species than it is for one with high site fidelity, like for U. minax reported here. Several species of sesarmid crabs also exhibit stationary up-estuary or up-river adult phases and release first stage zoeae to be transported by river currents to estuaries and nearshore waters to complete development and re-immigrate to freshwater habitats as megalopae [56][57][58].…”

Section: Discussionmentioning

confidence: 99%

“…Amphidromous decapods typically exhibit characteristic ontogenetic patterns of variation in osmoregulatory capabilities [58,59]. Variability in salinity can however, lead to significant differences in larval production, growth, survivorship and reproductive potential related to osmotic stress [60].…”

Section: Discussionmentioning

confidence: 99%

Limited gene flow in Uca minax (LeConte 1855) along a tidally influenced river system

Staton

Borgianini

Gibson³

et al. 2013

Open Life Sciences

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For crab larvae, swimming behaviors coupled with the movement of tides suggests that larvae can normally move upstream within estuaries by avoiding ebb tides and actively swimming during flood tides (i.e., flood-tide transport [FTT]). Recently, a 1-D transport model incorporating larval behavior predicted that opposing forces of river discharge and tidal amplitude in the Pee Dee River/Winyah Bay system of South Carolina, USA, could limit dispersal within a single estuary for downstream transport as well as become a dispersal barrier to recruitment of late stage larvae to the freshwater adult habitats of Uca minax (LeConte 1855). We sequenced 394-bp of the mitochondrial cytochrome apoenzyme b for 226 adult U. minax, from four locales along a 49-km stretch of the Pee Dee River/Winyah Bay estuary, above and below the boundary of salt intrusion. Results of an analysis of molecular variance (AMOVA) and an exact test of population differentiation showed a small, but statistically significant (α=0.05) population subdivision among adults of the 4 subpopulations, as well as all subpopulations being significantly differentiated (α=0.05). This pattern fitted with model predictions, which implies that larval transport within the tidally influenced river system is limited.

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Zehnfußkrebse – Pioniere der Evolution

Anger¹

2014

Biologie in unserer Zeit

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Adaptive diversity in congeneric coastal crabs: Ontogenetic patterns of osmoregulation match life-history strategies in Armases spp (Decapoda, Sesarmidae)

Cited by 19 publications

References 44 publications

Growth, tolerance to low salinity, and osmoregulation in decapod crustacean larvae

Growth, tolerance to low salinity, and osmoregulation in decapod crustacean larvae

Limited gene flow in Uca minax (LeConte 1855) along a tidally influenced river system

Zehnfußkrebse – Pioniere der Evolution

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Adaptive diversity in congeneric coastal crabs: Ontogenetic patterns of osmoregulation match life-history strategies in Armases spp (Decapoda, Sesarmidae)

Cited by 19 publications

References 44 publications

Growth, tolerance to low ­salinity, and osmoregulation in decapod crustacean larvae

Growth, tolerance to low ­salinity, and osmoregulation in decapod crustacean larvae

Limited gene flow in Uca minax (LeConte 1855) along a tidally influenced river system

Zehnfußkrebse – Pioniere der Evolution

Contact Info

Product

Resources

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Growth, tolerance to low salinity, and osmoregulation in decapod crustacean larvae

Growth, tolerance to low salinity, and osmoregulation in decapod crustacean larvae