Coral Reefs最新文献_第10页

Seabird guano reshapes intertidal reef food web in an isolated oceanic islet 海鸟粪便重塑了与世隔绝的海洋小岛潮间带珊瑚礁食物网

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-02-12 DOI: 10.1007/s00338-024-02469-w

Ryan Andrades, Gabriel C. Cardozo-Ferreira, Larissa J. Benevides, Caio R. Pimentel, Patrícia L. Mancini, Carlos E. L. Ferreira, Tommaso Giarrizzo, Jean-Christophe Joyeux, Raphael M. Macieira

{"title":"Seabird guano reshapes intertidal reef food web in an isolated oceanic islet","authors":"Ryan Andrades, Gabriel C. Cardozo-Ferreira, Larissa J. Benevides, Caio R. Pimentel, Patrícia L. Mancini, Carlos E. L. Ferreira, Tommaso Giarrizzo, Jean-Christophe Joyeux, Raphael M. Macieira","doi":"10.1007/s00338-024-02469-w","DOIUrl":"https://doi.org/10.1007/s00338-024-02469-w","url":null,"abstract":"Deposits of seabird guano on marine shores have drawn the attention of companies and naturalists for centuries. Among notable effects, allochthonous energy/matter inputs by seabirds are responsible for shifts in ecosystem functioning next to colonies. Here, we used stable isotopes of nitrogen-15 (ratios of 15N:14N, expressed as δ15N) to trace guano incorporation in the intertidal reef community (fish and crab). The study areas were the Saint Peter and Saint Paul Archipelago (SPSPA), a remote and very small group of islets in the equatorial Atlantic Ocean, and two reference Atlantic islands where intertidal environments are not subject to the influence of guano. SPSPA intertidal reef fauna presented 3–7‰ higher δ15N values in comparison with local seabirds and with the intertidal reef fauna of reference islands. The intertidal food web of SPSPA appears supplemented by guano subsidies with carnivores, omnivores and herbivores 15N-enriched in relation to a local seabird. While no difference in intertidal biota δ15N values was detected between references sites, 15N-enrichement observed for SPSPA intertidal reef fauna is supported by guano subsidies. With emerged area < 0.02 km2, SPSPA is one of the world’s smallest archipelagos and only its main islet (Belmonte Island) has a few tidepools apt to be inhabited by fish. As guano readily drains into tidepools and reef crevices adjacent to the seabird colony, allochthonous nutrients become available and support habitat-restricted species in this small and isolated location.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"54 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139756533","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The recovery of octocoral populations following periodic disturbance masks their vulnerability to persistent global change 章鱼种群在受到周期性干扰后的恢复掩盖了它们在持续的全球变化面前的脆弱性

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-02-07 DOI: 10.1007/s00338-024-02465-0

James Cant, Lorenzo Bramanti, Georgios Tsounis, Ángela Martínez Quintana, Howard R. Lasker, Peter J. Edmunds

{"title":"The recovery of octocoral populations following periodic disturbance masks their vulnerability to persistent global change","authors":"James Cant, Lorenzo Bramanti, Georgios Tsounis, Ángela Martínez Quintana, Howard R. Lasker, Peter J. Edmunds","doi":"10.1007/s00338-024-02465-0","DOIUrl":"https://doi.org/10.1007/s00338-024-02465-0","url":null,"abstract":"As the major form of coral reef regime shift, stony coral to macroalgal transitions have received considerable attention. In the Caribbean, however, regime shifts in which scleractinian corals are replaced by octocoral assemblages hold potential for maintaining reef associated communities. Accordingly, forecasting the resilience of octocoral assemblages to future disturbance regimes is necessary to understand these assemblages' capacity to maintain reef biodiversity. We parameterised integral projection models quantifying the survival, growth, and recruitment of the octocorals, Antillogorgia americana, Gorgonia ventalina, and Eunicea flexuosa, in St John, US Virgin Islands, before, during, and after severe hurricane disturbance. Using these models, we forecast the density of populations of each species under varying future hurricane regimes. We demonstrate that although hurricanes reduce population growth, A. americana, G. ventalina, and E. flexuosa each display a capacity for quick recovery following storm disturbance. Despite this recovery potential, we illustrate how the population dynamics of each species correspond with a longer-term decline in their population densities. Despite their resilience to periodic physical disturbance events, ongoing global change jeopardises the future viability of octocoral assemblages.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"8 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139756625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Demographic recovery of corals at a wave-exposed reef following catastrophic disturbance 波浪暴露的珊瑚礁在遭受灾难性干扰后的珊瑚数量恢复情况

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-02-07 DOI: 10.1007/s00338-024-02464-1

Liam Lachs, Piera Biondi, Marine Gouezo, Victor Nestor, Dawnette Olsudong, James Guest, Yimnang Golbuu

{"title":"Demographic recovery of corals at a wave-exposed reef following catastrophic disturbance","authors":"Liam Lachs, Piera Biondi, Marine Gouezo, Victor Nestor, Dawnette Olsudong, James Guest, Yimnang Golbuu","doi":"10.1007/s00338-024-02464-1","DOIUrl":"https://doi.org/10.1007/s00338-024-02464-1","url":null,"abstract":"Rapid recovery of coral cover following acute disturbance has been documented on many reefs. Yet measuring coverage alone can mask shifts in community and demographic structure. Here, we quantify long-term changes in population size structure for three common genera (Acropora, Pocillopora, and Stylophora) at an eastern outer reef in Palau, Micronesia, following catastrophic loss of corals due to typhoon Bopha in 2012, based on size measurements from 3648 coral colonies. Mean colony size returned to pre-disturbance levels within 4 and 6 years for Stylophora and Pocillopora, respectively. By 2020, Pocillopora colony density far exceeded pre-disturbance levels, with rapid successful recruitment following typhoon Bopha. Despite recovery of Acropora colony density by 2020, populations remained dominated by smaller colonies. We demonstrate that full demographic recovery can occur more rapidly for pocilloporids (within 6 years) compared to Acropora which had not fully recovered by 8 years post-disturbance, possibly due to fewer annual recruitment events and larger maximum colony sizes. Our results highlight the value of demographic metrics as early indicators of recovery.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"18 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139756580","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring benthic habitat assessments on coral reefs: a comparison of direct field measurements versus remote sensing 探索珊瑚礁底栖生物栖息地评估：直接实地测量与遥感的比较

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-02-06 DOI: 10.1007/s00338-024-02468-x

{"title":"Exploring benthic habitat assessments on coral reefs: a comparison of direct field measurements versus remote sensing","authors":"","doi":"10.1007/s00338-024-02468-x","DOIUrl":"https://doi.org/10.1007/s00338-024-02468-x","url":null,"abstract":"<h3>Abstract</h3> Coral reefs are spatially variable ecosystems that form biogenic structures ranging in size from 10 to 1000s of meters. Their changes in response to anthropogenic stress are occurring across increasingly broad scales, yet our ability to detect, understand and respond to these changes at relevant scales is limited. Traditional in-water observation-based coral reef ecology and remote sensing-based methods both offer valuable insights into benthic change, but their relative scalability and use to-date must be understood to inform optimal future research approaches. We conducted a systematic literature review comparing the approaches used to quantify benthic habitat, through traditional in-water ecological studies and remote sensing studies, with respect to: (a) their geographic distribution, (b) reef zone selection, and c) their focal questions. Among the 199 studies reviewed, traditional ecological studies primarily concentrated on community composition (89%), using high-detail direct measurements, especially from the reef slope (80%). By contrast, remote sensing studies provided spatially explicit datasets at coarser spatial and thematic resolutions, with a predominant focus on benthic mapping (72%) across entire reef systems. Only 3% of studies integrated both approaches, combining comprehensive in-situ observations with broadscale remote sensing. As anthropogenic stressors continue to increase in scale, bridging these scientific disciplines offers a promising way to upscale observations to entire reef-scape scales. We identify steps to harness the strengths of both fields and integrate multiple tools at various levels of resolution and scale. Such bridging approaches offer a way forward in understanding and managing coral reef functioning in the Anthropocene.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"4 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139756874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Structural attributes and macrofaunal assemblages associated with rose gorgonian gardens (Leptogorgia sp. nov.) in Central Chile: opening the door for conservation actions 与智利中部玫瑰芡实花园（Leptogorgia sp.nov.）相关的结构属性和大型底栖动物群落：为保护行动打开大门

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-02-05 DOI: 10.1007/s00338-023-02463-8

Judith Camps-Castellà, Patricia Prado, José Tena-Medialdea, Antonio Brante, Iván A. Hinojosa

{"title":"Structural attributes and macrofaunal assemblages associated with rose gorgonian gardens (Leptogorgia sp. nov.) in Central Chile: opening the door for conservation actions","authors":"Judith Camps-Castellà, Patricia Prado, José Tena-Medialdea, Antonio Brante, Iván A. Hinojosa","doi":"10.1007/s00338-023-02463-8","DOIUrl":"https://doi.org/10.1007/s00338-023-02463-8","url":null,"abstract":"Gorgonians (like corals) are important habitat-forming organisms that support a diversity of macrofauna. This study explored structural attributes of gorgonian gardens formed by rose gorgonians (Leptogorgia sp. nov.) and associated macrofaunal assemblages in Caleta Pichicuy (Central Chile). Hierarchical sampling was conducted at 20 m depth (maximum colony abundances) in order to assess spatial variability in abundance and colony attributes at two spatial scales (among sites and rocky walls). The abundance and composition of the associated vagile and sessile macrofauna were also examined using univariant (Taxa richness and Shannon index (H’e)) and multivariant approaches and were compared with adjacent bare rocky habitats. Our results showed a high abundance of gorgonians (ca. 28.9–36.5 colonies m−2) compared to other gorgonian gardens in the world. For structural attributes, our results showed smaller colonies with thicker holdfasts in more exposed sites, suggesting the influence of hydrodynamic forces on the colony morphology. Taxa richness and H’e of vagile fauna showed threefold and twofold, respectively, higher values in gorgonian gardens compared to bare walls, but no differences were observed for sessile fauna. In addition, PCoA and PERMANOVA evidenced a distinctive assemblages’ composition between habitats for both vagile and sessile fauna. Correlation analyzes and dbRDA showed, however, little association between structural attributes and associated faunal assemblages (R2 = 0.06, and ca. 3–9.4% of the total variation explained, respectively). Our results constitute the first assessment of structural habitat complexity and accompanying fauna in these gorgonian gardens and establish the baseline for understanding possible future changes associated to human activities.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"17 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139756600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure and growth rate variability in a giant clam (Tridacna maxima) from the Lakshadweep Archipelago, India: implications for their use as biological monitors to trace extreme weather events 印度拉克沙德韦普群岛砗磲的微观结构和生长率变化：将其用作追踪极端天气事件的生物监测器的意义

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-01-29 DOI: 10.1007/s00338-023-02455-8

A. A. Fousiya, Javed N. Malik, Debajyoti Paul, Supriyo Chakraborty, Hema Achyuthan

{"title":"Microstructure and growth rate variability in a giant clam (Tridacna maxima) from the Lakshadweep Archipelago, India: implications for their use as biological monitors to trace extreme weather events","authors":"A. A. Fousiya, Javed N. Malik, Debajyoti Paul, Supriyo Chakraborty, Hema Achyuthan","doi":"10.1007/s00338-023-02455-8","DOIUrl":"https://doi.org/10.1007/s00338-023-02455-8","url":null,"abstract":"The giant clam shells are considered excellent marine bioarchives and have been used in studying current and past climate variabilities. Here, we present the microstructure and growth rate variability of a giant clam shell (T. maxima) collected from the Minicoy Island Lakshadweep, India. We employed FE-SEM, EDX, Raman spectroscopy and petrographic analysis to identify coherent records of the past marine environmental settings and factors controlling growth rates in T. maxima. A consistent growth rate was observed throughout the shell ontology, except for the year 2010, when a relatively slow growth rate was observed due to exceptionally warm water temperatures. Slower microstructural growth is confirmed by an anomalously negative excursion in δ18O values caused by an anomalous sea surface warming event. Such kind of warming was previously documented for the region in 2010 that caused widespread coral bleaching throughout the Lakshadweep Archipelago. Interestingly, our results do not reveal any major growth hiatus in the T. maxima even after experiencing this anomalous thermal stress event, demonstrating the ability of these bivalve shells to reliably reconstruct past environments. These findings advance the potential of combining data from shell microstructure, petrographic, and isotope (δ18Oshell) analyses, to reconstruct the past extreme events preserved in giant clam shells from the Lakshadweep Archipelago.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"17 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139588131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Functional diversity among coral reef fishes as consumers of ectoparasites 珊瑚礁鱼类作为外寄生虫消费者的功能多样性

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-01-27 DOI: 10.1007/s00338-023-02459-4

Matthew D. Nicholson, J. Andrés Pagán, Gina C. Hendrick, Paul C. Sikkel

{"title":"Functional diversity among coral reef fishes as consumers of ectoparasites","authors":"Matthew D. Nicholson, J. Andrés Pagán, Gina C. Hendrick, Paul C. Sikkel","doi":"10.1007/s00338-023-02459-4","DOIUrl":"https://doi.org/10.1007/s00338-023-02459-4","url":null,"abstract":"Nearly all organisms must cope with parasitic infestation, and most research on parasite ecology in marine systems has focused on the variety of both direct and indirect impacts that parasites can have on hosts. In coral reef ecosystems, gnathiid isopods are one of the most common ectoparasites of fishes. For individuals infested with gnathiids, there is a heavy reliance on intraspecific mutualisms where specialist species groom or “clean” parasites off host fishes. However, gnathiids spend most of their time free-living and not associated with a host and are thus susceptible to consumption by non-cleaner fish species. Here, we investigated if non-cleaner and facultative (less specialized) cleaner fish consume ectoparasitic gnathiid isopods as often or in similar quantities as dedicated (highly specialized) cleaners. To do so, we sampled the gut contents of 797 fishes, representing 61 species and including both cleaner and non-cleaner fishes, to compare their consumption of gnathiid isopods. We found that although there is some site level variation, cleaner fishes eat significantly more gnathiids, and eat them more frequently, compared to non-cleaner fishes. Our results highlight the importance of both dedicated and facultative cleaners as consumers of ectoparasites and show that their role is unlikely to be supplanted by non-cleaner consumers. Furthermore, we suggest that different cleaner species act as complementary rather than redundant specialists.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"67 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139588348","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extreme low-frequency waves on the Ofu, American Samoa, reef flat 美属萨摩亚奥福岛礁盘上的极端低频海浪

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-01-22 DOI: 10.1007/s00338-023-02453-w

Olivia M. Cheriton, Curt D. Storlazzi, Ferdinand K. J. Oberle, Kurt J. Rosenberger, Eric K. Brown

引用次数: 0

Habitat and morphological characteristics affect juvenile mortality in five coral reef damselfishes 栖息地和形态特征影响五种珊瑚礁豆娘的幼鱼死亡率

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-01-21 DOI: 10.1007/s00338-023-02462-9

Eric P. Fakan, Mark I. McCormick, Geoffrey P. Jones, Andrew S. Hoey

{"title":"Habitat and morphological characteristics affect juvenile mortality in five coral reef damselfishes","authors":"Eric P. Fakan, Mark I. McCormick, Geoffrey P. Jones, Andrew S. Hoey","doi":"10.1007/s00338-023-02462-9","DOIUrl":"https://doi.org/10.1007/s00338-023-02462-9","url":null,"abstract":"The abundance and distribution of demersal fishes rely on larvae successfully settling from the pelagic environment to a benthic habitat and their subsequent survival. With high mortality rates during this life stage, settling to a habitat that maximizes survival is critical. However, relationships between settlement choices and subsequent survival are poorly understood and may vary among species with different habitat preferences. To test this, we focused on five congeneric (Pomacentrus) damselfish species that are known to differ in their habitat choices and explored whether habitat associations at settlement influenced survival. Newly settled individuals were tagged and monitored daily for two weeks to estimate natural mortality rates. Morphological attributes of fish and characteristics of settlement habitats, including depth, rugosity, benthic substrata, and local fish assemblages, were used to predict mortality. We found that some species displayed stronger associations with specific benthic substrata at settlement, but contrary to expectations, these selected habitat characteristics were relatively weak predictors of survivorship. Our survival analysis revealed that the best predictors of survivorship were rugosity (P. adelus and P. amboinensis) and two morphological traits, body depth and ocellus size (P. chrysurus and P. adelus). Interestingly, we found that P. moluccensis that settled in areas of high coverage of mounding coral experienced increased mortality. Of the remaining substrata, analysis showed that instead of associating with habitat characteristics enhancing survivorship, individuals tended not to associate with habitats characteristics that increased mortality (e.g., Turbinaria and sand). This study highlights the species-specific drivers of early post-settlement mortality in coral reef fishes.","PeriodicalId":10821,"journal":{"name":"Coral Reefs","volume":"84 1","pages":""},"PeriodicalIF":3.5,"publicationDate":"2024-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139518116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Acclimation period affects tissue condition in the Caribbean staghorn coral, Acropora cervicornis 适应期影响加勒比鹿角珊瑚 Acropora cervicornis 的组织状况

IF 3.5 2区生物学

Coral Reefs Pub Date : 2024-01-20 DOI: 10.1007/s00338-023-02461-w

引用次数: 0