A simulation model for an Iridaea splendens (Gigartinales, Rhodophyta) population in Vancouver, Canada

Ang, Po; Wreede, Robert E. De; Shaughnessy, Frank J.; Dyck, Leonard James

doi:10.1007/978-94-009-2049-1_27

Thirteenth International Seaweed Symposium 1990

DOI: 10.1007/978-94-009-2049-1_27

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A simulation model for an Iridaea splendens (Gigartinales, Rhodophyta) population in Vancouver, Canada

Po Ang

Robert E. De Wreede

Frank J. Shaughnessy

et al.

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“…Furthermore, some species exhibit diplobiontic life cycles with isomorphic haploid and diploid free-living individuals, which are difficult to distinguish in the field. As a result, the development of demographic models that integrate both population structure and dynamics and accommodate complex life cycles have been applied to a few macroalgal species (Ang et al 1990, Åberg 1992, Ang and De Wreede 1993, Chapman 1993, Santos 1993, Santos and Nyman 1998, Lindgren 2000, Engel et al 2001.…”

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STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN¹

Faes

Viejo

2003

Journal of Phycology

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Palmaria palmata (Linnaeus) O. Kuntze (Rhodophyta, Palmariaceae) is a seaweed commercially harvested for human consumption. Its population density, size structure, and frond dynamics were investigated from May 1999 to May 2001 at one intertidal locality in the northern coast of Spain, which is within the southern distributional boundary of the species in the eastern Atlantic coasts. The effect of size, age, and the life‐history phase (haploid vs. diploid) on frond growth and mortality were also evaluated. The study was carried out by mapping and monitoring fronds in the field. New fronds (macroscopic recruits or sprouts) appeared in spring, but subsequent mortality of these young fronds and detachment of the host plant led to lower density values in January. Palmaria palmata exhibited a distinctive seasonal growth cycle, with positive net growth from March to August and breakage from August to March. Interannual differences were also detected, with higher net growth in 2000 than in 1999. Net growth was apparently independent of age, reproductive status (fertile vs. reproductive), and life‐history phase (haploid vs. diploid) but was dependent on size, as longer fronds showed minor growth or greater breakage than small ones. Mortality, on the other hand, was more dependent on age than on size in the period analyzed (March–May 2000). Results of the study indicate that both size and age should be included as state variables and temporal changes in transition probabilities considered in the development of demographic models of the species.

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STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN¹

Faes

Viejo

2003

Journal of Phycology

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Patterns of gametophyte dominance ofIridaea splendens(Rhodophyta) in Vancouver Harbour, Vancouver, British Columbia, Canada

Wreede

Green

1990

J Appl Phycol

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Otaíza

Abades

Brante

2001

Journal of Applied Phycology

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A simulation model for an Iridaea splendens (Gigartinales, Rhodophyta) population in Vancouver, Canada

Cited by 4 publications

References 2 publications

STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN¹

STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN¹

Patterns of gametophyte dominance ofIridaea splendens(Rhodophyta) in Vancouver Harbour, Vancouver, British Columbia, Canada

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A simulation model for an Iridaea splendens (Gigartinales, Rhodophyta) population in Vancouver, Canada

Cited by 4 publications

References 2 publications

STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN1

STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN1

Patterns of gametophyte dominance ofIridaea splendens(Rhodophyta) in Vancouver Harbour, Vancouver, British Columbia, Canada

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STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN¹

STRUCTURE AND DYNAMICS OF A POPULATION OF PALMARIA PALMATA (RHODOPHYTA) IN NORTHERN SPAIN¹