Range extension of the non-indigenous alga Mastocarpus sp. along the Southeastern Pacific coast

Macaya, Erasmo C.; Pacheco, Solange; Cáceres, Ariel; Musleh, Selim

doi:10.4067/s0718-19572013000300024

Cited by 3 publications

(3 citation statements)

References 20 publications

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“…Mastocarpus is a genus with species distributions previously restricted to the North Pacific before it was recorded in Chilean waters nearly four decades ago, and is thus considered an introduced species to the Southern Hemisphere (Lindstrom et al 2011, Macaya et al 2013. Though this non-native species was initially identified as Mastocarpus papillatus (C. Agardh) Kützing (Castilla et al 2005), Lindstrom et al (2011) identified this species as Mastocarpus latissimus (Harvey) S. C. Lindstrom, Hughey & Martone based on an internal transcribed spacer (ITS) sequence from a Chilean specimen, collected at "La Desembocadura" Biobío region.…”

Section: Methodsmentioning

confidence: 99%

The phylogeographic history of amphitropical Callophyllis variegata (Florideophyceae, Rhodophyta) in the Pacific Ocean

Bringloe¹,

Macaya²,

Saunders³

2019

ALGAE

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Chilean species of marine macroalgae with amphitropical distributions oftentimes result from introductions out of the Northern Hemisphere. This possibility was investigated using haplotype data in an amphitropical red macroalgae present in Chile, Callophyllis variegata. Published sequence records from Canada and the United States were supplemented with new collections from Chile (April 2014-November 2015). Specimens of C. variegata were amplified for the 5′ end of the cytochrome c oxidase subunit I gene (COI-5P) and the full length nuclear internal transcribed spacer region. Haplotype networks and biogeographic distributions were used to infer whether C. variegata was introduced between hemispheres, and several population parameters were estimated using IMa2 analyses. C. variegata displayed a natural amphitropical distribution, with an isolation time of approximately 938 ka between hemispheres. It is hypothesized that contemporary populations of C. variegata were established from a refugial population during the late Pleistocene, and may have crossed the tropics via rafting on buoyant species of kelp or along deep-water refugia coincident with global cooling, representing a rare case of a non-human mediated amphitropical distribution.

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Section: Methodsmentioning

confidence: 99%

The phylogeographic history of amphitropical Callophyllis variegata (Florideophyceae, Rhodophyta) in the Pacific Ocean

Bringloe¹,

Macaya²,

Saunders³

2019

ALGAE

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“…fragile Madariaga et al, 2014), A. armata (Ramírez et al, 2007), M. latissimus y S. nicaeensis (Vásquez et al, 2001;Villaseñor-Parada et al, 2014). No obstante, proliferación y/o monopolización del sustrato no ocurre en todo el rango de distribución, sino en sectores específicos de la costa (e.g., C. fragile en el norte chico, Neill et al, 2006;A. armata en el norte grande, Ramírez et al, 2008b; M. latissimus en la costa de Concepción, Macaya et al, 2013), y si bien S. nicaeensis, es bastante frecuente a lo largo de la costa, no es muy abundante en los sitios donde está presente, constituyendo un caso especial de invasión (Villaseñor-Parada et al, 2014).…”

Section: Especies Nativas Introducidas Fuera De Su Rango Natural De Dunclassified

“…Existe evidencia empírica que apoya esta idea, pues Macaya et al (2013) señalan la baja abundancia de M. latissimus en los extremos de su rango de distribución, sugiriendo una creciente expansión; Madariaga et al (2014) basados en modelos de nicho ecológico, identifican varios sitios susceptibles a ser invadidos por C. fragile, donde aún no se tiene reportes de dicha especie; y Contreras et al (2007) indican que la ausencia de S. gracilis en la costa de Chañaral se debe netamente a efectos históricos y no a restricciones ambientales asociadas a altas concentraciones de cobre, que esta especie es capaz de tolerar en condiciones de laboratorio.…”

Section: Especies Nativas Introducidas Fuera De Su Rango Natural De Dunclassified

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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Non-indigenous species and their realized niche in tidepools along the South-East Pacific coast

Jofré-Madariaga,

Aguilera Moya,

Alves-de-Souza

et al. 2024

Marine Environmental Research

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Range extension of the non-indigenous alga Mastocarpus sp. along the Southeastern Pacific coast

Cited by 3 publications

References 20 publications

The phylogeographic history of amphitropical Callophyllis variegata (Florideophyceae, Rhodophyta) in the Pacific Ocean

The phylogeographic history of amphitropical Callophyllis variegata (Florideophyceae, Rhodophyta) in the Pacific Ocean

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

Non-indigenous species and their realized niche in tidepools along the South-East Pacific coast

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