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Population biology and chemical composition of the red alga Callophyllis variegata (Rhodophyta; Cryptonemiales) in southern Chile

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2020

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Westermeier, Renato
Murúa, Pedro
Robles, Marcela
Barría, Marisol
Patiño, David J.
Muñoz, Liliana

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Journal of Applied Phycology. Springer. 2020, 32(4), pp. 2505-2513. ISSN 0921-8971. eISSN 1573-5176. Available under: doi: 10.1007/s10811-019-01988-2

Zusammenfassung

The cosmopolitan red alga Callophyllis variegata is harvested and exported as food to Asian countries. In anticipation of overexploitation problems, this study aimed to describe temporal changes in their population structures and chemical composition by comparing intact (Pichicuyén) and exploited populations (San Antonio) of southern Chile, by using linear mixed models. Abundance parameters and size classes were higher in summer months, whereas fertile stages tetrasporophytes and carposporophytes were more abundant in autumn–winter periods. Recruitment was plentiful toward late winter–spring months. Geographical differences were also detected, and San Antonio (C. variegata-exploited) stocks exhibited lower productivity but similar cover/density in comparison to Pichicuyen (intact location). Likewise, this population showed a size structure toward smaller individuals (e.g., recruits) and more sterile individuals than Pichicuyen. Phosphorous, protein, lipid, soluble carbohydrate, and fiber composition also showed a clear seasonal trend, but no differences between localities were found for lipids and soluble carbohydrates. Since C. variegata showed good productivity and interesting nutritional value, we concluded this species shows potential for exploitation and commercialization in southern Chile, as long as specific management protocols and market studies are developed.

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570 Biowissenschaften, Biologie

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ISO 690WESTERMEIER, Renato, Pedro MURÚA, Marcela ROBLES, Marisol BARRÍA, David J. PATIÑO, Liliana MUÑOZ, Dieter G. MÜLLER, 2020. Population biology and chemical composition of the red alga Callophyllis variegata (Rhodophyta; Cryptonemiales) in southern Chile. In: Journal of Applied Phycology. Springer. 2020, 32(4), pp. 2505-2513. ISSN 0921-8971. eISSN 1573-5176. Available under: doi: 10.1007/s10811-019-01988-2
BibTex
@article{Westermeier2020-08Popul-51256,
  year={2020},
  doi={10.1007/s10811-019-01988-2},
  title={Population biology and chemical composition of the red alga Callophyllis variegata (Rhodophyta; Cryptonemiales) in southern Chile},
  number={4},
  volume={32},
  issn={0921-8971},
  journal={Journal of Applied Phycology},
  pages={2505--2513},
  author={Westermeier, Renato and Murúa, Pedro and Robles, Marcela and Barría, Marisol and Patiño, David J. and Muñoz, Liliana and Müller, Dieter G.}
}
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