Pelagic conditions affect larval behavior, survival, and settlement patterns in the Caribbean coral Montastraea faveolata

Vermeij, Mark J. A.; Fogarty, Nicole D.; Miller, Margaret W.

doi:10.3354/meps310119

Cited by 102 publications

(90 citation statements)

References 60 publications

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“…These results are similar to those of Richmond (1993) who found that the rate of fertilisation dropped from 88% to 25% with a drop in salinity from 34 to 28 ppt, and from 58% to 34% with a drop in salinity from 35 to 31.5 ppt in corals from Guam and Okinawa, respectively. The present study also showed increased levels of developmental abnormalities at 30 ppt salinity treatment compared to 32 or 35 ppt, again conWrming previous studies which also recorded a reduction in embryo viability and planulae survival in response to reductions in salinity (Richmond 1993;Vermeij et al 2006). Increasing rates of abnormal development, in addition to reduction in fertilisation levels, can bring about a marked reduction in viable larvae and may have a profound impact on recruitment (Bassim et al 2002).…”

Section: Discussionsupporting

confidence: 77%

Effects of suspended sediments, dissolved inorganic nutrients and salinity on fertilisation and embryo development in the coral Acropora millepora (Ehrenberg, 1834)

et al. 2008

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Exposure of coral reefs to river plumes carrying increasing loads of nutrients and sediments is a pressing issue for coral reefs around the world including the Great Barrier Reef (GBR). Laboratory experiments were conducted to investigate the eVects of changes in inorganic nutrients (nitrate, ammonium and phosphate), salinity and various types of suspended sediments in isolation and in combination on rates of fertilisation and early embryonic development of the scleractinian coral Acropora millepora. Dose-response experiments showed that fertilisation declined signiWcantly with increasing sediments and decreasing salinity, while inorganic nutrients at up to 20 M nitrate or ammonium and 4 M phosphate had no signiWcant eVect on fertilisation. Suspended sediments of ¸100 mg l ¡1 and salinity of 30 ppt reduced fertilisation by >50%. Developmental abnormality occurred in 100% of embryos at 30 ppt salinity, and no fertilisation occurred at ·28 ppt. Another experiment tested interactions between sediment, salinity and nutrients and showed that fertilisation was signiWcantly reduced when nutrients and low concentrations of sediments co-occurred, although both on their own had no eVect on fertilisation rates. Similarly, while slightly reduced salinity on its own had no eVect, fertilisation was reduced when it coincided with elevated levels of sediments or nutrients. Both these interactions were synergistic. A third experiment showed that sediments with diVerent geophysical and nutrient properties had diVerential eVects on fertilisation, possibly related to sediment and nutrient properties. The Wndings highlight the complex nature of the eVects of changing water quality on coral health, particularly stressing the signiWcance of water quality during coral spawning time.

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Section: Discussionsupporting

confidence: 77%

Effects of suspended sediments, dissolved inorganic nutrients and salinity on fertilisation and embryo development in the coral Acropora millepora (Ehrenberg, 1834)

et al. 2008

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“…Hermaphroditism and the gonads in separate mesenteries agree with the pattern observed in the species of the Abrolhos Reef Complex (see Castro, B. T. and Pires, 2006) and seem to be very conservative at the family level (HARRISON, 1985;SCHLESINGER et al, 1998). However, Vermeij et al (2004) observed in M. decactis from the Caribbean region that each polyp had only ten fertile mesenteries, 50% of them with male and female gametes developing together in the same mesentery. Morphological and genetic comparisons would be necessary to ascertain whether these are the same species, or whether there is intraspecific variation in a few characteristics between the two localities, including the number of fertile mesenteries and gonadal arrangement, as well as divergences in the mode of reproduction (HARRISON, 1985).…”

Section: Environmental Parametersmentioning

confidence: 99%

“…6). The gametes or planulae spawning at this period may avoid potential damage, when latter, these stages are exposed to high SST and solar insolation at the summer peak (BASSIM et al, 2002;BASSIM;SAMMARCO, 2003) and also avoid periods of salinity reduction and/or water turbidity, which may decrease the pre-settlement phase and increased the mortality rate (VERMEIJ et al, 2006).…”

Section: Reproductive Cyclementioning

confidence: 99%

“…However, the absence of embryos and planulae in the histological sections is not always a proof of the spawning mode of reproduction, because these stages can remain for a short period inside the polyp (STIMSON, 1978;HARRIOTT, 1983). Vermeij et al (2003) captured planulae of Madracis species, including M. decactis, using nets positioned around the colonies, but did not observe planulae in the more than 8000 histological sections examined (VERMEIJ et al, 2004). The authors suggested that these species were "quick releasers" because of the rapid release of embryos after fertilization.…”

Section: Mode Of Reproductionmentioning

confidence: 99%

“…At this stage, it is probable that little or no heterotrophic feeding occurs (HARRISON;WALLACE, 1990). Because of the small size of the polyps, it is possible that the embryos (or gametes) are released quickly to make space available for the development of new embryos (VERMEIJ et al, 2004). Table 1.…”

Section: Mode Of Reproductionmentioning

confidence: 99%

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Gametogenesis in Madracis decactis Lyman, 1859 (Cnidaria, Scleractinia) from Ilha Grande Bay (Rio de Janeiro), southeastern Brazil

Muramatsu

Silveira

2008

Braz. j. oceanogr.

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Collections were made every two months in Ilha Grande Bay, Rio de Janeiro, for 21 months (August/2004-May/2006) to study the gametogenesis of Madracis decactis Lyman, 1859. A total of 1800 polyps were examined using standard histological techniques. Madracis decactis is a hermaphroditic species whose male and female gametes develop within different mesenteries. Oogenesis begins in October, while spermatogenesis begins at the end of February, both reaching maturity at the end of April. The peak of reproductive activity occurred between February and April, when all the polyps were fertile, containing mainly stage III oocytes. Examination of fertile polyps indicated the simultaneous presence of stages I, II and III for oogenesis and I, II, III and IV for spermatogenesis. No embryos or planulae were observed in the histological sections. The gametes or planulae spawning may occur between April and May.
Coletas foram feitas a cada dois meses na Baía de Ilha Grande, Rio de Janeiro, durante 21 meses (agosto/2004 - maio/2006) para estudar a gametogênese de Madracis decactis Lyman, 1859. Um total de 1800 pólipos foram examinados através de técnicas histológicas padrão. M. decactis é uma espécie hermafrodita, cujos gametas masculinos e femininos se desenvolvem em mesentérios diferentes. A ovogênese iniciou em outubro, e a espermatogênese no final de fevereiro, ambas alcançando maturidade no final do mês de abril. O pico da atividade reprodutiva ocorreu entre fevereiro e abril quando todos os pólipos estavam férteis contendo, principalmente, ovócitos no estágio III de maturação. O exame dos pólipos férteis indicou a presença simultânea dos estágios de desenvolvimento I, II e III para a ovogênese e dos estágios I, II, III e IV para a espermatogênese. Não foram encontrados embriões ou plânulas nos cortes histológicos. Os dados indicam que a liberação dos gametas ou plânulas deve ocorrer, provavelmente, entre os meses de abril e maio

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Genetic structure ofOrbicella faveolatapopulation reveals high connectivity among a marine protected area and Varadero Reef in the Colombian Caribbean

Alegría‐Ortega

Sanín

Quan-Young

et al. 2021

Aquatic Conservation

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The protection of ecosystems with high diversity, such as coral reefs, is not an approach that guarantees their conservation. Thus, maintaining connectivity among coral populations over the long term is a strategy that should be adopted in order to protect diversity and ecological processes. Although coral reefs in Colombia are highly diverse, the population genetics baseline data of keystone species such as Orbicella faveolata are limited. To provide current information about the connectivity between populations of O. faveolata in the Colombian Caribbean, the genetic diversity and distribution of O. faveolata was evaluated with analysis of molecular variance (AMOVA), principal components, and migration estimations using 113 genets distributed in six populations. Also, a genetic structure analysis that included the available data for the Caribbean population was conducted, seeking to understand how the Colombian populations relate to the broader region. According to the global fixation index (FST) for the Colombian Caribbean, there was no genetic structure (FST = 0.002). Discriminant analysis of principal components (DAPC) showed that Corales del Rosario Archipelago (CR), Este de Isla Fuerte (EIF), San Bernardo Archipelago (SB), and Varadero Reef (VR) were grouped with Oeste de Isla Fuerte (OIF), with Bushnell (BS) representing the most divergent cluster. Migration analysis showed relatively high migration from VR to CR and SB, highlighting the importance of VR as a genetic reservoir for the region. Structure analysis showed that the Colombian population presented a specific genetic identity (FST = 0.254), suggesting that the Colombian Caribbean population could be a peripheral population that contributes significantly to genetic variation and is connected through a complex connectivity process. In conclusion, the estimated genetic connectivity reflects the influence of sea surface dynamics over the interpopulation exchange dynamics and the role of protected and nonprotected coral reef in the Colombian Caribbean. Thus, the Colombian Caribbean population of O. faveolata could be relevant to the conservation of genetic diversity on a larger scale.

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Pelagic conditions affect larval behavior, survival, and settlement patterns in the Caribbean coral Montastraea faveolata

Cited by 102 publications

References 60 publications

Effects of suspended sediments, dissolved inorganic nutrients and salinity on fertilisation and embryo development in the coral Acropora millepora (Ehrenberg, 1834)

Effects of suspended sediments, dissolved inorganic nutrients and salinity on fertilisation and embryo development in the coral Acropora millepora (Ehrenberg, 1834)

Gametogenesis in Madracis decactis Lyman, 1859 (Cnidaria, Scleractinia) from Ilha Grande Bay (Rio de Janeiro), southeastern Brazil

Genetic structure ofOrbicella faveolatapopulation reveals high connectivity among a marine protected area and Varadero Reef in the Colombian Caribbean

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