Attachment and development of the zygotes of Pelvetia canaliculata (L.) Dcne. et Thur. (Phaeophyceae, Fucales)

Hardy, F. G.; Moss, Betty

doi:10.2216/i0031-8884-18-3-203.1

Cited by 23 publications

(16 citation statements)

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“…Several fucoids have delayed rhizoidal development and have specialized atlachnlent mechanisms, e.g. mesochiton in Pelvetia and special cell walls in zygotes of Bifurcaria and Hjmantlialia (Hardy & Moss 1979, Moss 1981. Zygotes of A. nodosum and Fucus spp.…”

Section: Discussionmentioning

confidence: 99%

Recruitment of Ascophyllum nodosum: wave action as a source of mortality

Vadas¹,

Wright²,

Miller³

1990

Mar. Ecol. Prog. Ser.

167

134

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The brown alga Ascophyllum nodosuni (L.) Le Jolis is a dominant rocky intertidal organlsm throughout much of the North Atlantic Ocean, yet its inabilily 10 colonize exposed or denuded shores is well recognized. Our experimental data show that wave action is a major source of mortality to recently settled zygotes. Artificially recniited zygotes consistently exhibited a Type IV survivorsh~p curve in the presence of moving water. As few as 10, bul olten only 1 reLalively low energy wave removed 85 to 99'% of recenlly setlled zygotes. increasing the setting time for attachment of zygotes (prior to distilrbance from water movemenl) had a positive effect on survival. However, survival was significantly lower at high densities, and decreased at long (24 h) setting times, probably as a result of bacleria 011 the surface of zygotes. Spatial refuges provided significant protection from gentle water movement but relatively little protectjon from waves. These data indicate that zygotes are maladapted lor attachment in moving water and suggest that water movement is the primary faclor conlrolliny recruitment and distributional patterns of A. nodosum. These and earlier observations on the long-term lack of colonizat~on of denuded shores suggest that successful recruitment is highly epjsodic on all but the most sheltered shores. Because of the widespread don~ina~~ce of A. nodosum, disturbance b y waves or currents, and stochastic events may play major roles in structuring intertidal comrnunilies In the Northwest Allantic.

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Section: Discussionmentioning

confidence: 99%

Recruitment of Ascophyllum nodosum: wave action as a source of mortality

Vadas¹,

Wright²,

Miller³

1990

Mar. Ecol. Prog. Ser.

167

134

View full text Add to dashboard Cite

show abstract

“…The timing of gamete release primarily occurs from late fall through early spring (Bird and McLachlan 1975) during daylight hours concurrent with low-tide aerial exposure Serrão et al 1996). This reproductive strategy enhances fertilization success for F. distichus Brawley et al 1999) and other fucoid species Serrão et al 1996;Pearson et al 1998), but results in low dispersal of gametes relative to algal species that utilize alternative strategies (Moss 1975;Hardy and Moss 1979). These traits allow reproductive isolation of distinct genetic types of F. distichus to be maintained even where they co-occur within small distances (Neiva et al 2012).…”

Section: Study Speciesmentioning

confidence: 99%

Distribution and Genetic Structure of Fucus distichus Linnaeus 1953 (formerly F. gardneri) within Central San Francisco Bay

Whitaker¹,

Fong²,

Neiva³

et al. 2017

SFEWS

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“…Others like A. nodosum and Fucus spp. attach first by the exudation of mucilage and then by rapid growth of a primary rhizoid that forms an adhesive "foot" on the substratum (Hardy & Moss, 1979;Moss, 1981). Species with delayed rhizoid development have other means of securing their zygotes, including specialized mesochiton or zygote walls (Hardy & Moss, 1979;Moss, 1981).…”

Section: Fucus Distichusmentioning

confidence: 99%

“…attach first by the exudation of mucilage and then by rapid growth of a primary rhizoid that forms an adhesive "foot" on the substratum (Hardy & Moss, 1979;Moss, 1981). Species with delayed rhizoid development have other means of securing their zygotes, including specialized mesochiton or zygote walls (Hardy & Moss, 1979;Moss, 1981). A greater understanding of these recruitment strategies, in concert with quantitative reproductive assessments, will help to explain the distribution and abundance of fucoid algae.…”

Section: Fucus Distichusmentioning

confidence: 99%