Same species, different population dynamics : Spatio-temporal differences of Undaria pinnatifida (Ochrophyta, Phaeophyceae) in the intertidal of North Patagonia, Argentina
© 2023 Phycological Society of America..
Population dynamics can be influenced by physical and biological factors, particularly in stressful environments. Introduced species usually have great physiological plasticity, resulting in populations with different traits. Undaria pinnatifida, a macroalga originally described from northeast Asia, was introduced in Northern Patagonia, Argentina (San Matías Gulf) around 2010. To describe the spatio-temporal variability in population structure and morphometry of U. pinnatifida, we conducted monthly field samplings for 2 years at the intertidal area of two contrasting sites in the San Matías Gulf. Individuals of U. pinnatifida were classified by developmental stage, and their morpho-gravimetric variables were measured. In both intertidal sites juveniles were found in higher proportion during austral autumn and grew and matured during the autumn-winter months (from May onwards), and individuals senesced during early austral summer (December and January). Conversely, density and biomass were largely different between sites, and individuals showed slight morphological variability between sites. Environmental (e.g., nutrient concentration, available substrate) and biological factors (e.g., facilitation, competition) may explain the observed differences. Since there is not a macroalga with U. pinnatifida morphometrical characteristics in the intertidal environments of San Matías Gulf, studying this recent introduction gives us a better understanding of its potential ecological effects.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:59 |
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| Enthalten in: |
Journal of phycology - 59(2023), 6 vom: 28. Dez., Seite 1310-1322 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Arcángel, Andrea Evangelina [VerfasserIn] |
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| Links: |
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| Themen: |
Biological Factors |
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| Anmerkungen: |
Date Completed 14.12.2023 Date Revised 15.04.2024 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1111/jpy.13395 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM363105468 |
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| 100 | 1 | |a Arcángel, Andrea Evangelina |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Same species, different population dynamics |b Spatio-temporal differences of Undaria pinnatifida (Ochrophyta, Phaeophyceae) in the intertidal of North Patagonia, Argentina |
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| 500 | |a Date Revised 15.04.2024 | ||
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| 500 | |a Citation Status MEDLINE | ||
| 520 | |a © 2023 Phycological Society of America. | ||
| 520 | |a Population dynamics can be influenced by physical and biological factors, particularly in stressful environments. Introduced species usually have great physiological plasticity, resulting in populations with different traits. Undaria pinnatifida, a macroalga originally described from northeast Asia, was introduced in Northern Patagonia, Argentina (San Matías Gulf) around 2010. To describe the spatio-temporal variability in population structure and morphometry of U. pinnatifida, we conducted monthly field samplings for 2 years at the intertidal area of two contrasting sites in the San Matías Gulf. Individuals of U. pinnatifida were classified by developmental stage, and their morpho-gravimetric variables were measured. In both intertidal sites juveniles were found in higher proportion during austral autumn and grew and matured during the autumn-winter months (from May onwards), and individuals senesced during early austral summer (December and January). Conversely, density and biomass were largely different between sites, and individuals showed slight morphological variability between sites. Environmental (e.g., nutrient concentration, available substrate) and biological factors (e.g., facilitation, competition) may explain the observed differences. Since there is not a macroalga with U. pinnatifida morphometrical characteristics in the intertidal environments of San Matías Gulf, studying this recent introduction gives us a better understanding of its potential ecological effects | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Patagonia Argentina | |
| 650 | 4 | |a introduced macroalgae | |
| 650 | 4 | |a morphometric variables | |
| 650 | 4 | |a population biology | |
| 650 | 7 | |a Biological Factors |2 NLM | |
| 700 | 1 | |a Rodríguez, Emiliano Alexis |e verfasserin |4 aut | |
| 700 | 1 | |a Saad, Juan Francisco |e verfasserin |4 aut | |
| 700 | 1 | |a de la Barra, Paula |e verfasserin |4 aut | |
| 700 | 1 | |a Narvarte, Maite Andrea |e verfasserin |4 aut | |
| 700 | 1 | |a Storero, Lorena Pía |e verfasserin |4 aut | |
| 700 | 1 | |a Pereyra, Patricio Javier |e verfasserin |4 aut | |
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