Variability at multiple spatial scales in intertidal and subtidal macrobenthic communities in a fjord with glaciers, Magellanic Subantarctic ecoregion, Chile

Bahamonde, Francisco; Rodríguez, Juan ́Pablo; Rosenfeld, Sebastián; Méndez, Fabio; López, Zaira; Gérard, Karin; Mansilla, Andrés

doi:10.1016/j.pocean.2022.102879

Cited by 9 publications

(10 citation statements)

References 115 publications

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“…Concerning the macrozoobenthic diversity among regions in this study, the natural habitat and geographic conditions may explain the pattern (Stella et al, 2011;Jimenez et al, 2012;Graham and Nash, 2013;Bahamonde et al, 2022;Knauber et al, 2023). These conditions include biotic (i.e., coral cover and food availability) and abiotic (i.e., substrate heterogeneity, salinity, sedimentation, light, and current) factors.…”

Section: Holothuria Nobilismentioning

confidence: 84%

Revealing macrozoobenthos diversity of Java coral reefs, Indonesia: a review on research trends and species assemblages

Aulia,

Park,

Lee

et al. 2024

Front. Mar. Sci.

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Macrozoobenthos communities play significant ecological roles in coral reef ecosystems. However, they are frequently overlooked due to their cryptic appearance, and their diversity remains undiscovered, particularly in Indonesia. This comprehensive review of publications on the macrozoobenthos in the coral reef ecosystems of Java - the most populated island in Indonesia, was conducted to compile a species list and gain an overview of its community composition. We also assessed the existence of species that are frequently reported, endemic, protected, and threatened. Data analysis was performed with data from 53 publications appearing from the 1980s to 2022. In total, 482 species belonging to 4 phyla and 9 classes have been recorded. Mollusca is the most speciose phylum (n = 321), followed by Echinodermata (n = 106), Arthropoda (n = 49), and Platyhelminthes (n = 6). Generally, the northern part of Java is well studied and has larger numbers of recorded phyla and species. The highest species number (n = 266) has been recorded off the northern coast of West Java, while there are around 25–99 species in other regions. Echinoderms species such as Culcita novaeguineae, Diadema setosum, Echinothrix calamaris, and Holothuria atra had relatively higher occurrences than other taxa. We also noted the occurrence of giant clam Hippopus hippopus, which is protected by Indonesian law. This review provides fundamental knowledge of macrozoobenthic diversity in the coral reefs of Java, making it available to global audiences. However, it revealed a lack of research on benthic fauna in several areas with moderate to good coral cover conditions. Further research is needed to explore macrozoobenthic species richness in this region thoroughly, and periodic monitoring is essential to provide early warnings of possible changes and biodiversity loss.

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Section: Holothuria Nobilismentioning

confidence: 84%

Revealing macrozoobenthos diversity of Java coral reefs, Indonesia: a review on research trends and species assemblages

Aulia,

Park,

Lee

et al. 2024

Front. Mar. Sci.

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“…Riqueza de especies en hábitats hiposalinos. La diversidad de especies de macroalgas en ambientes costeros glaciares es por lo general baja, por deberse principalmente a hábitats hiposalinos por el aporte de agua dulce proveniente del derretimiento de los hielos (Bahamonde et al 2022;Letelier et al 2013;Rodríguez et al 2021). Sin embargo, la diversidad de especies identificadas en este estudio presenta valores de riqueza y composición semejantes a los reportados en ambientes sin influencia glaciar del Canal Beagle.…”

Section: Discussionunclassified

“…Estas algas incluyen distintas divisiones, tales como Ochrophyta o algas pardas (e.g., Adenocystis utricularis o Ectocarpus siliculosus), Chlorophyta o algas verdes (e.g., Ulva intestinalis o Ulothrix flacca) y Rhodophyta (especialmente de la familia Ceramiaceae y Rhodomelaceae). Estas características morfológicas han sido previamente referidas como asociadas a ambientes con influencia glaciar (Bahamonde et al 2022) 4. Nuevos registros y ámbitos de distribución.…”

Section: Prevalencia De Hábitos Con Talos Filamentososunclassified

“…A pesar de la proximidad entre el Canal Beagle y el Archipiélago islas Diego Ramírez (aproximadamente 150 km), las macroalgas de sitios con influencia glaciar del Canal Beagle presentan mayor afinidad florística con especies del Estrecho de Magallanes, y de áreas de fiordos y canales de la provincia de Última Esperanza, como el fiordo Canal de las Montañas (Bahamonde et al 2022). Esta similitud florística está relacionada con los gradientes de salinidad y los diversos grados de exposición al oleaje (Letelier et al 2013).…”

Section: Afinidad Florística De Algas Del Canal Beagleunclassified

“…iii) Posee las mayores extensiones de bosques submarinos de macroalgas o "kelp" (Mansilla et al 2009;Marambio et al 2020). iv) Su geografía permite evaluar el efecto del retroceso glaciar sobre las comunidades marinas bentónicas (Bahamonde et al 2022). v) Representa el límite sur de la distribución subantártica para bosques submarinos de macroalgas o "kelp" y de diversos grupos taxonómicos de macroalgas (Mansilla & Navarro, 2003;Marambio et al 2020;Rosenfeld et al 2020).…”

Section: Introductionunclassified

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First catalogue of benthic marine macroalgae from glacier-influenced environments of the Beagle Channel, deposited in the new Sub-Antarctic Cryptogamic Herbarium (SCH) of the University of Magallanes

Rodriguez Provoste,

Gibelli,

Bahamonde

et al. 2024

AIP

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The environmental characteristics and geomorphological landscape in the sub-Antarctic Magellanic ecoregion underpin a biological diversity that evolved adapting to the microhabitats produced by these heterogeneous ecological conditions. The high level of endemism found in these biological communities is nowadays protected thanks to the creation of the Cape Horn Biosphere Reserve (CHBR), a natural laboratory at the southern end of the sub-Antarctic Magellanic ecoregion. Studies produced in this region offer a valuable knowledge of its biological, ecological and cultural facets in a state still scarcely impacted by anthropogenic activities. The retreat of glaciers present along the channels and fjords of the CHBR due to global climate change impacts the marine benthic and macroalgae communities hosted in these water bodies. European expeditions in the 18th and 19th centuries pioneered the works which provided our current knowledge about this subantarctic marine flora. Nevertheless, there is still a gap of taxonomic information of macroalgae diversity in the CHBR. To solve this gap, with support of the Cape Horn Internationional Center (CHIC), we created the Sub-Antarctic Cryptogamic Herbarium (SCH) hosted at the Antarctic and Sub-Antarctic Marine Ecosystems Laboratory (LEMAS), University of Magallanes. In 2020, the New York Botanical Garden indexed the SCH in its Index Herbariorum. This indexation granted by this world-renowned institution places the SCH's biological collection as the world's southernmost cryptogamic repository. As such, the SCH's botanical collection is currently the only gateway to the subantarctic ecosystem's biological legacy. The catalogue below provides information about the ecological and morphological characteristics of macroalgae deposited in the SCH, with particular focus on those species present in the CHBR. We identified 54 species. Among them 23 belong to the Rhodophyta division (43%), 19 species to the Chlorophyta division (35%), and 12 species to the Ochrophyta division (22%). In the context of rapid global change, involving increasingly threatened taxa due to human impact, baseline studies and records deposited at the SCH will provide an essential tool for assessing patterns of change and defining conservation practices to protect the rich biodiversity of these sub-Antarctic ecosystems.

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Effects of glacial discharge on thallus condition of northern rockweed (Fucus distichus) in the Gulf of Alaska

Kim,

Iken

2024

Journal of Experimental Marine Biology and Ecology

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Variability at multiple spatial scales in intertidal and subtidal macrobenthic communities in a fjord with glaciers, Magellanic Subantarctic ecoregion, Chile

Cited by 9 publications

References 115 publications

Revealing macrozoobenthos diversity of Java coral reefs, Indonesia: a review on research trends and species assemblages

Revealing macrozoobenthos diversity of Java coral reefs, Indonesia: a review on research trends and species assemblages

First catalogue of benthic marine macroalgae from glacier-influenced environments of the Beagle Channel, deposited in the new Sub-Antarctic Cryptogamic Herbarium (SCH) of the University of Magallanes

Effects of glacial discharge on thallus condition of northern rockweed (Fucus distichus) in the Gulf of Alaska

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