First record of a ceramiaceous red algal species, Ceramium stichidiosum, from magellanic region, chile

Mansilla, Andrés; Navarro, Nelso P.; Fujii, Mutuê T.

doi:10.4067/s0717-65382006000200012

Cited by 3 publications

(3 citation statements)

References 7 publications

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“…En la sección basal, se adhiere al sustrato por medio de células rizoidales. Hábitat: Intermareal, asociadas, rocas, terrazas, conchas y epifita a macroalgas (Boraso de Zaixso, 2013;Mansilla et al 2006;Mendoza & Nizovoy, 2000). Código HCS: LMS00001118.…”

Section: Ceramium Stichidiosum J Agardhunclassified

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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Section: Ceramium Stichidiosum J Agardhunclassified

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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“…Ceramium stichidiosum J. Agardh (Rhodophyta, Ceramiales), macroalga que históricamente había sido registrada para la costa centro-sur de Chile (i.e., entre Las Cruces y Chiloé; Hoffmann & Santelices, 1997) pero que ha sido dada a conocer como epífita sobre algunas Gigartinales en el estrecho de Magallanes (extremo sur de Chile) mostrando una alta discontinuidad geográfica (Mansilla et al, 2006). 17.…”

Section: B) Nuevas Especies Exóticasunclassified

Macroalgas exoticas en la costa de Chile: patrones espaciales y temporales en el proceso de invasion

Villaseñor-Parada¹,

Pauchard²,

Ramirez³

et al. 2018

lajar

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RESUMEN.En este trabajo se propone una lista de 14 especies de macroalgas exóticas en la costa de Chile, además de otras tres especies que, siendo nativas a la costa chilena, han sido introducidas en sectores fuera de su rango natural de distribución. Este listado fue realizado depurando catastros publicados con antelación, e incorporando nuevos reportes. La distribución de macroalgas exóticas no es homogénea a lo largo de la costa, sino que se concentra en sectores cercanos a puertos y centros de cultivos. La mayoría de las especies muestra una distribución bastante acotada y sólo cuatro tienden a ser invasoras (i.e., incrementan su rango de distribución a través del tiempo). Sin embargo, considerando que la mayoría de las introducciones son recientes (últimos 60 años), y la amplitud del rango de distribución se relaciona positivamente con el tiempo de residencia de las especies en la costa chilena, se sugiere que algunas de estas especies podrían estar en etapa de expansión, lo que explicaría su localizada distribución. Este trabajo no sólo actualiza la información relacionada con macroalgas exóticas en la costa chilena, sino que además permite entender el proceso de invasión de estos organismos, a través del análisis de los patrones descritos en estos sistemas. Palabras clave: macroalgas, invasión, Codium fragile, Asparagopsis armata, Mastocarpus latissimus, Schottera nicaeensis. Exotic seaweed in the Chilean coast: spatial and temporal patterns in the invasion processABSTRACT. In this paper we propose a checklist of 14 species of exotic seaweeds on the Chilean coast, and three species which, being native to the Chilean coast, have been introduced in areas outside their natural range. This list was compiled from previously published checklist, debugged the misidentified records, and incorporating new ones. The distribution of exotic seaweeds is not homogeneous along the coast, but it is concentrated in areas near ports and aquaculture centers. Most species display a fairly bounded distribution, and only four tend to invade (i.e., increase its range of distribution over time). However, considering that most introductions are recent (the last 60 years) and the positive relationship between amplitude of the distribution range and residence time of species on the Chilean coast, we suggest that some of these species may be in an expansion phase, which would explain its restricted distribution. This work not only updates the information related to exotic seaweed on the Chilean coast, but also allows us to understand the invasion process, through the analysis of the patterns described in these systems.

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“…También existen otras contribuciones más puntuales, como los trabajos de Contreras (1983), quien realizó los primeros reportes de la flora marina de las Islas Diego Ramírez identificando un total de 56 especies macroalgas, que posteriormente, fueron complementados con el trabajo de Mansilla & Navarro (2003), quienes suman 25 nuevos registros de macroalgas al área de estudio. Posteriormente, existen una serie de trabajos recopilatorios y de campo, de los autores Ramírez & Santelices (1991), Ramírez (1995Ramírez ( y 2010, Kim et al (2004), Mansilla et al (2006Mansilla et al ( y 2013 y Marambio et al (2016), los cuales, centran su área de estudio en la zona centro-sur de la región de Magallanes.…”

Section: Introductionunclassified

Macroalgas submareales de los canales interiores del Parque Nacional Bernardo O’Higgins (~49°- 51° S), región de Magallanes, Chile

Palacios

2018

Anales Instituto Patagonia (Chile)

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First record of a ceramiaceous red algal species, Ceramium stichidiosum, from magellanic region, chile

Cited by 3 publications

References 7 publications

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

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

Macroalgas exoticas en la costa de Chile: patrones espaciales y temporales en el proceso de invasion

Macroalgas submareales de los canales interiores del Parque Nacional Bernardo O’Higgins (~49°- 51° S), región de Magallanes, Chile

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First record of a ceramiaceous red algal species, Ceramium stichidiosum, from magellanic region, chile

Cited by 3 publications

References 7 publications

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

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

Macroalgas exoticas en la costa de Chile: patrones espaciales y temporales en el proceso de invasion

Macroalgas submareales de los canales interiores del Parque Nacional Bernardo O&#8217;Higgins (~49°- 51° S), región de Magallanes, Chile

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Macroalgas submareales de los canales interiores del Parque Nacional Bernardo O’Higgins (~49°- 51° S), región de Magallanes, Chile