Sublittoral, Benthic Marine Algae of Southern Cape Cod and Adjacent Island: Seasonal Periodicity, Associations, Diversity, and Floristic Composition

1975 ◽  
Vol 45 (4) ◽  
pp. 337-365 ◽  
Author(s):  
James R. Sears ◽  
Robert T. Wilce
1992 ◽  
Vol 70 (10) ◽  
pp. 2089-2096 ◽  
Author(s):  
Susan J. Stanley

Information is presented on three fungal–algal associations on intertidal marine algae. They comprise two members of the Ascomycotina, Lautitia danica parasitic on Chondrus crispus, and Mycosphaerella ascophylli, an obligate endophyte of Ascophyllum nodosum, and a member of the Basidiomycotina, Mycaureola dilseae, that is parasitic on Dilsea carnosa. Details are given of life cycles and seasonal periodicity. The reproductive cycles of Mycosphaerella ascophylli and Ascophyllum nodosum are synchronised, with the fungal sporocarps being confined to the algal receptacles. Lautitia danica occurs on cystocarpic Chondrus crispus throughout the year, with older fronds being more likely to have fungal sporocarps on them. Mycaureola dilseae infecting Dilsea carnosa was only found during September and October. The systemic nature of the association between Mycosphaerella ascophylli and Ascophyllum nodosum is compared with the apparently localized occurrence of Lautitia danica and Mycaureola dilseae. Key words: marine algicolous fungi, seasonality, Ascomycetes, Basidiomycetes.


Author(s):  
Eduard A. Titlyanov ◽  
Tamara V. Titlyanova ◽  
Oksana S. Belous ◽  
Tatyana L. Kalita

Sanya Bay lies at the southern part of Hainan Island, 18°15′N 109°28′E. The seawater in the bay has been catastrophically polluted during the past two decades with urban sewage from the rapidly developing Sanya City. The marine flora research in Sanya Bay was started at the beginning of the 1930s and the most detailed studies were performed by two German-Chinese expeditions in 1990 (October–December) and in 1992 (March–April). In April, October, November and December 2008–2010 the marine flora of Sanya Bay was studied by the authors at three localities: Luhuitou Peninsula, Xiaodong Hai and Dadong Hai. Marine algae were sampled in the intertidal and upper subtidal zones (to 4–5 m depth). The list of species (including varieties and forms) of the marine algae for Sanya Bay sampled during the period from 2008 to 2010 is compared with those collected at the same localities in 1990/1992. Comparative analysis of the floristic composition of the marine red, brown and green algae (found during different time periods) revealed that considerable changes have taken place between 1990/1992 and 2008–2010 at Sanya Bay. There was an increase in filamentous, tubular and fine blade-like green and red algae (mainly epiphytes with a high surface to volume ratio) and a displacement of upright-growing fleshy, foliose and other large green, brown and red algae with a low surface to volume ratio. It is assumed that the changes reflect mainly increased pollution by urban sewage and mariculture pond wastes and probably by coral bleaching events of 1998.


2015 ◽  
Vol 42 (1) ◽  
pp. 165-170
Author(s):  
P. G. Moore

Three letters from the Sheina Marshall archive at the former University Marine Biological Station Millport (UMBSM) reveal the pivotal significance of Sheina Marshall's father, Dr John Nairn Marshall, behind the scheme planned by Glasgow University's Regius Professor of Zoology, John Graham Kerr. He proposed to build an alternative marine station facility on Cumbrae's adjacent island of Bute in the Firth of Clyde in the early years of the twentieth century to cater predominantly for marine researchers.


2006 ◽  
Vol 33 (1) ◽  
pp. 1-17
Author(s):  
Dewi Jones

John Lloyd Williams was an authority on the arctic-alpine flora of Snowdonia during the late nineteenth century when plant collecting was at its height, but unlike other botanists and plant collectors he did not fully pursue the fashionable trend of forming a complete herbarium. His diligent plant-hunting in a comparatively little explored part of Snowdonia led to his discovering a new site for the rare Killarney fern (Trichomanes speciosum), a feat which was considered a major achievement at the time. For most part of the nineteenth century plant distribution, classification and forming herbaria, had been paramount in the learning of botany in Britain resulting in little attention being made to other aspects of the subject. However, towards the end of the century many botanists turned their attention to studying plant physiology, a subject which had advanced significantly in German laboratories. Rivalry between botanists working on similar projects became inevitable in the race to be first in print as Lloyd Williams soon realized when undertaking his major study on the cytology of marine algae.


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