Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico

Pacheco‐Ruiz, Isai; Bolaños-Arias, Gerardo; Zertuche-González, José A.; Gálvez-Telles, A.; Cabello‐Pasini, Alejandro

doi:10.1515/bot.2005.023

Cited by 4 publications

(4 citation statements)

References 17 publications

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“…4). Furthermore, although the Conchocelis stage of P. perforata does occur in the intertidal zone (Martínez 1990;Pacheco-Ruíz et al 2005), its abundance declines dramatically with increasing tide height and is not correlated with cover of upright P. perforata blades (Martínez 1990), suggesting that mid-intertidal P. perforata is primarily seeded from Conchocelis at lower tidal elevation.…”

Section: Fig 5 (A)mentioning

confidence: 99%

Local-scale nutrient regeneration facilitates seaweed growth on wave-exposed rocky shores in an upwelling system

2009

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This study shows that, even on exposed, wave-swept, rocky shores in a nutrient-replete upwelling ecosystem, mussels (Mytilus californianus) facilitate the growth of the seaweed Porphyra perforata by enhancing nutrient concentrations in the nearby water column. In field surveys on emergent substrate in the mid-intertidal zone, we found ten times greater abundance of P. perforata on mussels than on adjacent rock. In field experiments, P. perforata accumulated and grew more quickly on mussels than on bare rock or on mussel mimics, suggesting that nutrients excreted by mussels might be responsible for greater P. perforata cover. At high tide, water column ammonium concentrations over mussel beds were nearly double those found over bare rock. Correspondingly, tissue nitrogen concentrations were higher, and carbon-to-nitrogen ratios were lower in P. perforata growing on mussels compared to bare rock. Given the dominance of mussels in mid-intertidal regions of temperate coasts worldwide, ammonium regeneration could be a general contributor to local-scale nutrient availability, even in high-flow systems characterized by high nutrient concentrations.

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Section: Fig 5 (A)mentioning

confidence: 99%

Local-scale nutrient regeneration facilitates seaweed growth on wave-exposed rocky shores in an upwelling system

2009

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“…Esto concuerda con lo reportado por otros autores para otras especies de Porphyra spp. (Iwasaki y Sasaki, 1971;Waaland y Dickson, Enero -Junio 2020 1983; Romo y Paula, 1995;Pacheco-Ruíz et al 2005;Redmond et al, 2014). Así mismo, Pacheco-Ruíz et al (2005) evidenciaron que las bajas temperaturas, como se observa en los eventos de surgencia, inducen la liberación de cigotosporas de Porphyra perforata en los meses de verano, lo cual corrobora a lo encontrado, mayor cantidad de cigotosporas obtenidas en el tratamiento que combina el estrés por variación de temperatura (T2= 10°C) y oscuridad (E1 y P1)…”

Section: Resultados Y Discusiónunclassified

Efecto de la luz y la temperatura en la esporulación de cigotosporas de “cochayuyo” Porphyra spp.

Arbaiza

Advíncula

et al. 2020

An. cient. U.N.A.

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“…Photoperiod exceeded the optimal range for conchospore release in March of 2008 which, should have cued conchocelis to decrease production of conchospores and begin propagating more conchocelis (Drew 1954, Dring 1967, Pacheco-Ruiz et al 2005 ( Figure 20). The May 2008 clearings were created four months after the earliest observed Porphyra response, just before periods of increased mean monthly tidal elevation at noon and submergence time during daylight hours ( Figure 22).…”

Section: Discussionmentioning

confidence: 99%

“…Both generations produce non-motile propagules in localized regions of the thallus (Dixon 1973). Release of carpospores by Porphyra perforata occurs when photoperiods exceed 12 hrs and at low temperatures coinciding with upwelling periods (Pacheco-Ruiz et al 2005).…”

Section: Porphyra Recruitment Dynamicsmentioning

confidence: 99%

Recruitment strategies of Ulva and Porphyra in central California.

Romero

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RECRUITMENT STRATEGIES OF ULVA AND PORPHYRA IN CENTRAL CALIFORNIA by Rosemary Romero Ephemeral algae are early colonizers of the rocky intertidal zone after a disturbance, although the mechanism of early colonization (including benthic microscopic stages and waterborne propagules) is poorly known. Recruitment of the ephemeral Ulva spp. was studied in two types of disturbance manipulations (partial removal of all macroscopic organisms were removed vs. complete removal of all macroand microscopic organisms) and an un-manipulated control at two tidal heights (high

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Propagule release and recruitment in Porphyra perforata (Rhodophyta) from Baja California, Mexico

Cited by 4 publications

References 17 publications

Local-scale nutrient regeneration facilitates seaweed growth on wave-exposed rocky shores in an upwelling system

Local-scale nutrient regeneration facilitates seaweed growth on wave-exposed rocky shores in an upwelling system

Efecto de la luz y la temperatura en la esporulación de cigotosporas de “cochayuyo” Porphyra spp.

Recruitment strategies of Ulva and Porphyra in central California.

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