Larval dispersal model of coral Acropora in the Karimunjawa Waters, Indonesia

Indrayanti, Elis; Zainuri, Muhammad; Sabdono, Agus; Wijayanti, Diah Permata; Pranowo, Widodo Setiyo; Siagian, Hendry

doi:10.13057/biodiv/d200738

Cited by 10 publications

(12 citation statements)

References 24 publications

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“…Apart from sample KMS 1, other sponges were submerged during the low tide. Various factors such as currents, tides, and winds influenced the larval settlement in the marine ecosystem (Indrayanti et al 2019). Rhizophora mucronata was noted as the outer species in the tracking mangrove Kemujan Island, Karimunjawa National Park.…”

Section: Resultsmentioning

confidence: 99%

Diversity of sponge-associated fungi from a mangrove forest in Kemujan Island, Karimunjawa National Park, Indonesia

et al. 2021

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Abstract. Sibero MT, Pribadi R, Larasati SJH, Calabon MS, Sabdono A, Subagiyo S, Frederick EH. 2021. Diversity of sponge-associated fungi from a mangrove forest in Kemujan Island, Karimunjawa National Park, Indonesia. Biodiversitas 22: 5695-5605. Plenty of studies have reported interesting biological properties and bioactive compounds from sponge-associated fungi in Indonesia. However, only a few studies consider their biodiversity. Most of the studies collected the sponge from the coral reef ecosystem and barely reported from the mangrove ecosystem. This study aimed to discover the biodiversity of sponge-associated fungi from a mangrove ecosystem using a DNA barcoding approach. Five mangrove-associated sponges were collected from a tidal mangrove forest in Kemujan Island, Karimunjawa National Park, Indonesia. In total, we isolated 56 sponge-associated fungi, which consisted of seven genera in the phylum Ascomycota (77.78%), one genus in the phylum Basidiomycota (11.11%), and one genus in the phylum Mucoromycota (11.11%). Trichoderma (n: 15, 26.79%), Aspergillus (n: 13, 23.21%) and Fusarium (n: 12, 21.45%) were the top three dominant genera. In addition, based on the association of fungi to its sponge hosts, Aspergillus, Aureobasidium, Fusarium, and Trichoderma are sponge-generalists; Absidia and Pestalotiopsis are sponge-associates; while Lasiodiplodia, Montagnula, and Wallemia are sponge-specialist.

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Section: Resultsmentioning

confidence: 99%

Diversity of sponge-associated fungi from a mangrove forest in Kemujan Island, Karimunjawa National Park, Indonesia

et al. 2021

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“…The results indicate that most of these coral recruits were thought to come from coral larvae sourced from natural coral reefs carried by local currents. Coastal current is generally generated by a coupling between tidal elevation waves and monsoonal winds (Siregar et al, 2017;Bonauli et al, 2016), process of larval dispersal in Karimunjawa, Jepara waters was influenced by currents, tides and monsoonal winds (Indrayanti et al, 2019). Previous studies suggested that tidal current influenced the dispersal of coral larvae in Panjang Island, Jepara (Munasik et al, 2006).…”

Section: Size Frequency Distribution Of Coral Recruitsmentioning

confidence: 99%

Coral Recruitment on Artificial Patch Reefs Deployed in The Marginal Reefs: Effect of Multilevel Substrate on Density of Coral Recruit

Munasik

Sabdono

Hutapea

et al. 2021

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A study of coral recruitment on Artificial Patch Reefs (APR) was performed in the marginal reef of Panjang Island, Central Java (Java Sea) to examine whether multilevel substrates of APR affect the density of coral recruits. Long-term and short-term observations were applied in yearly monitoring 2017-2019 and biweekly observations for 3 months in early 2019. Coral recruitment significantly varied among level substrates of APR (F(a,b) .05=3.08; p-value<0.05) and there was a significant difference at the beginning of the year (F(a,b) .05=5.52; p-value<0.05). The density of recruits on the substrates after 4 years post-deployment of APRs was 0.2 to 129.2 m-2 while the recruitment rate within short-term observations was 0.28-1.28 m-2 per month. The highest coral recruitment occurred at the middle to the top level of APR, while the lowest recruitment was found in the lowest level of APR. This is possibly due to high resuspension from the seabed. Oulastrea was dominant in both long- and short-term recruitment periods while Pocillopora was rare due to post-settlement mortality which trigger the overgrown coral-killing sponges. The results indicated that the adaptation of coral recruitment in the marginal environment is determined by the high recruitment of the small-colony coral species which possessed stress-tolerant for turbidity disturbance, such as Oulastrea crispata. This study suggested that the multilevel substrates, Artificial Patch Reefs (APR) are one of the reef rehabilitation methods which can be applied in the marginal environment enhancing coral recruitment.

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“…These studies highlight the interspecific variability in phenotypic life history traits that may lead to underestimates in connectivity modelling projections. Parameter estimates typically used in published dispersal models are for a larval duration of 10-40 days (Baums et al 2006;Holstein et al 2014;Indrayanti et al 2019;Schill et al 2015) and a competency period of 30 days or less (Drury et al 2018;Holstein et al 2014;Indrayanti et al 2019;Kool et al 2011). While variation among individuals and cohorts may also be important both in modelling and in the growing implementation of larval rearing for coral restoration (Randall et al 2020), most empirical studies characterize only a single cohort of larvae.…”

Section: Being the Notable Exception)mentioning

confidence: 99%

Peer Review #1 of "Larval longevity and competency patterns of Caribbean reef-building corals (v0.1)"

2020

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The potential for long-distance larval dispersal depends on the longevity of planktonic, free-swimming larvae and their capacity to successfully recruit to reef habitat. We present multi-year laboratory observations of the persistence of planular larvae and settlement competency over time for cohorts derived from the same parental populations of the most important Caribbean reef building coral species, Orbicella faveolata and Acropora spp. Despite variability among years/cohorts, larvae of both species display capacity for extended longevity (up to 83 d) and competency (demonstrated at up to 48 d). Both species also displayed significantly reduced survivorship and lower realized settlement under elevated temperatures. Although the observed levels of settlement in 24 h competency assays was extremely variable, the timing of onset of competence was highly consistent among years/cohorts but distinct between species. Orbicella faveolata displayed onset of competence during day 3-5 or 4-7 (with or without exposure to positive settlement cue) after spawning; whereas, onset for Acropora spp. was day 7-8 or day 10-11 (with or without cue, respectively). This longer pre-competency period for Acropora spp. nonetheless corresponded to a greater persistence of A. palmata larvae to this age of competence (71-83% of initial cohort compared to 54-55% for O. faveolata). Such life history variation implies meaningful differences in likely dispersal potential between these imperiled reef-building species.

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Larval dispersal model of coral Acropora in the Karimunjawa Waters, Indonesia

Cited by 10 publications

References 24 publications

Diversity of sponge-associated fungi from a mangrove forest in Kemujan Island, Karimunjawa National Park, Indonesia

Diversity of sponge-associated fungi from a mangrove forest in Kemujan Island, Karimunjawa National Park, Indonesia

Coral Recruitment on Artificial Patch Reefs Deployed in The Marginal Reefs: Effect of Multilevel Substrate on Density of Coral Recruit

Peer Review #1 of "Larval longevity and competency patterns of Caribbean reef-building corals (v0.1)"

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