Larval development and settlement of the barnacle Amphibalanus amphitrite from the Red Sea: Influence of the nauplii hatching season

Al-Aidaroos, Ali M.; Satheesh, Sathianeson

doi:10.2478/s13545-014-0130-2

Cited by 4 publications

(3 citation statements)

References 41 publications

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“…It is important to note that the reproductive cycles of most of the taxa observed in this study are not known in Saudi Arabian Red Sea region. However, recent studies by Al-Aidaroos & Satheesh (2014) reported the pronounced seasonality (active breeding in spring and summer) in reproductive cycle of barnacles in the central Red Sea region. We assume that other species may also follow a seasonal reproductive cycle and that thi could be a possible reason for observed seasonal fluctuations.…”

Section: Discussionmentioning

confidence: 98%

Habitat preference and seasonal variability of epifaunal assemblages associated with macroalgal beds on the Central Red Sea coast, Saudi Arabia

2015

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Macroalgal communities of coastal ecosystems play a key role in maintaining overall coastal biodiversity. In this study, habitat preference (macroalgal host preference) and temporal changes (season) of epifaunal communities associated to five macroalgal species such as Padina, Sargassum, Ulva, Acanthophora and Gracilaria were observed at seasonal intervals (summer and winter) for 2 years from May 2012 to March 2014 on the Jeddah coastal waters of the Red Sea. Major epifaunal groups observed included polychaetes, amphipods, isopods, gastropods, mussels and crabs. Polychaetes were represented by 10 species followed by amphipods with five species. The abundance of gastropods, polychaetes and mussels showed significant variation between the macroalgae irrespective of morphology. Generally, the abundance of these taxa were high on Padina and low on Sargassum. Significant seasonal changes were observed on the abundance of polychaetes, amphipods and isopods. The abundance of some epifaunal groups showed a significant relationship with environmental parameters such as surface water temperature, salinity, pH and dissolved oxygen content.

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Section: Discussionmentioning

confidence: 98%

Habitat preference and seasonal variability of epifaunal assemblages associated with macroalgal beds on the Central Red Sea coast, Saudi Arabia

2015

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“…Effects of Acute and Chronic Exposure of PMMA Nanoplastics on Barnacle Larvae Development. The growth of barnacle larvae consists of three stages, 47,48 and the duration in which the larvae remain in each of these stages is mainly dependent on temperature and nutrient availability. 49 In order to understand the impact of nanoplastics on different life stages, investigations on the distribution of nanoplastics inside barnacle larvae were conducted at three-time points: stage III nauplii (2 days old), cyprid (5 days old), and juvenile (7 days old).…”

Section: Acs Sustainable Chemistry and Engineeringmentioning

confidence: 99%

Fate of Nanoplastics in Marine Larvae: A Case Study Using Barnacles, Amphibalanus amphitrite

Bhargava

Lee

Ying

et al. 2018

ACS Sustainable Chem. Eng.

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The exposure of nanoplastics was investigated by observing their interaction with Amphibalanus amphitrite (commonly known as acorn barnacles). Poly(methyl methacrylate) (PMMA) and fluorescent perylene tetraester (PTE) dye were used to prepare highly fluorescent nanoplastic particles. At concentrations of 25 ppm, the PMMA particles showed no detrimental impact on barnacle larvae and their microalgae feed, Tetraselmis suecica and Chaetoceros muelleri. PMMA nanoplastics were ingested and translocated inside the body of the barnacle nauplii within the first 3 h of incubation. The fluorescent PMMA particles inside the transparent nauplius were tracked using confocal fluorescence microscopy. Subsequently, the nanoplastics were fed to the barnacle nauplii under two conditionsacute and chronic exposure. The results from acute exposure show that nanoplastics persist in the body throughout stages of growth and developmentfrom nauplius to cyprid and juvenile barnacle. Some egestion of nanoplastics was observed through moulting and fecal excrement. In comparison, chronic exposure demonstrates bioaccumulation of the nanoplastics even at low concentrations of the plastics. The impacts of our study using PMMA nanoparticles exceeds current knowledge, where most studies stop at uptake and ingestion. Here we demonstrate that uptake of nanoparticles during planktonic larval stages may persist to the adult stages, indicating potential for the long-term impacts of nanoplastics on sessile invertebrate communities.

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“…Exopolymers isolated from biofilm bacterial strains were tested against the larvae of barnacle A. amphitrite . Like other marine invertebrates, A. amphitrite has greater ecological significance among rocky intertidal habitats and it is also commonly used as a model organism in antifouling studies 28–30 . Specifically, the following questions were addressed in this study: (1) do the exopolymers induce settlement and metamorphosis of A. amphitrite larvae?…”

Section: Introductionmentioning

confidence: 99%

Characterization and assessment of barnacle larval settlement-inducing activity of extracellular polymeric substances isolated from marine biofilm bacteria

Siddik

Satheesh

2019

Sci Rep

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Extracellular polymeric substances (EPSs) are the hydrated gelatinous matrix produced by microorganisms for attachment in a biofilm environment. In this study, the compositional variation between EPSs of three marine biofilm bacteria (Pseudoalteromonas shioyasakiensis, Vibrio harveyi and Planomicrobium sp.) were analysed by GC-MS, 1H NMR, FT-IR and XRD and SEM. The ecological significance of exopolymers was assessed in vivo using marine model organism barnacle larvae for their settlement-inducing activity. Chemical analysis revealed the presence of glycan fucosylated oligosaccharides, tetraose, trisaccharides, iso-B-Pentasaccharides, sialyllactose, oligomannose, galacto-N-biose, difucosyl-para-lacto-N-neohexaose, 3′-sialyl N-acetyllactosamine and isoglobotriaose-β-N(Acetyl)-Propargyl in all extracted EPSs. Bioassay results indicated that treatment of the barnacle larvae with EPSs from three bacterial strains enhanced settlement on substrates. In conclusion, this study highlighted the role of water-soluble EPSs in the invertebrate larval settlement on artificial materials.

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Larval development and settlement of the barnacle Amphibalanus amphitrite from the Red Sea: Influence of the nauplii hatching season

Cited by 4 publications

References 41 publications

Habitat preference and seasonal variability of epifaunal assemblages associated with macroalgal beds on the Central Red Sea coast, Saudi Arabia

Habitat preference and seasonal variability of epifaunal assemblages associated with macroalgal beds on the Central Red Sea coast, Saudi Arabia

Fate of Nanoplastics in Marine Larvae: A Case Study Using Barnacles, Amphibalanus amphitrite

Characterization and assessment of barnacle larval settlement-inducing activity of extracellular polymeric substances isolated from marine biofilm bacteria

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