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Showing 1 to 12 of 12 for “"Phaeophyceae"”.
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A biological study of Desmarestia firma (C.Ag.) Skottsb. (Phaeophyceae, Desmarestiales)
Several aspects of the biology of Desmarestia firma (C.Ag.) Skottsb., a common understorey alga in western Cape (Southern Africa) kelp beds, are investigated. The life-history of this species is described from culture. Zoospores from unilocular sporangia give rise to separate filamentous male and …
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Elevated temperatures create bottlenecks in the life history of bull kelp (Nereocystis luetkeana, Phaeophyceae)
The bull kelp Nereocystis luetkeana has declined in parts of the Salish Sea due to local and global change factors, including rising sea surface temperatures. As a foundation species, its loss has broad impacts on biodiversity and nearshore ecosystem function, underscoring the need to identify and …
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ΕΡΕΥΝΕΣ ΕΠΙ ΤΩΝ ΒΕΝΘΙΚΩΝ ΜΑΚΡΟΦΥΚΩΝ (CHLOROPHYCEAE, PHAEOPHYCEAE, RHODOPHYCEAE) ΤΟΥ ΚΟΡΙΝΘΙΑΚΟΥ ΚΟΛΠΟΥ. ΧΛΩΡΙΔΙΚΗ, ΤΑΞΙΝΟΜΙΚΗ, ΦΥΤΟΓΕΩΓΡΑΦΙΚΗ, ΟΙΚΟΛΟΓΙΚΗΜΕΛ...
THIS STUDY EXAMINES THE BENTHIC CHLOROPHYCEAE, PHAEOPHYCEAE AND RHODOPHYCEAE OFTHE KORINTHIAKOS GULF, GREECE, FROM THE FLORISTIC, TAXONOMIC ECOLOGICAL AND PHYTOGEOGRAPHICAL POINTS OF VIEW. SEVEN CHAPTERS ARE INCLUDED IN THE PRESENT WORK. HISTORICAL REVIEW OF THE MARINE ALGAL RESEARCH CARRIES OUT IN …
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The taxonomic and systematic relationships of several salt marsh Fucus taxa (Heterokontophyta, Phaeophyceae) within the Gulf of Maine and Ireland examined using microsatellite markers
<p>The present thesis utilizes microsatellite markers to examine genetic affinities between several salt marsh Fucus ecads in order to ascertain their relationships with attached parental species. Chapter I provides an introduction to the genus Fucus and discusses morphological plasticity, …
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Some South African red seaweed polysaccharides
… groups: the Chlorophyceae or green algae, the Phaeophyceae or brown algae, the Rhodophyceae or red algae, and the Cyanophyceae or blue-green algae. The polysaccharides which are extracted from marine algae may be differentiated into reserve polysaccharides, analogous to starch in land plants, …
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The phylogeny, biology and biogeography of the Southern African kelps Ecklonia maxima and Laminaria pallida
… Ecklonia is investigated. The genus Ecklonia (Phaeophyceae, Lessoniaceae) consists of seven species with four species in the Northern Hemisphere and three in the southern Hemisphere. Ecklonia was recently transferred to the family Lessoniaceae based on phylogenetic analyses of nuclear and …
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Nutrient uptake and exudation patterns of nitrogenous substances and polyphenols in the kelp Ecklonia Maxima (Osbeck) Papenfuss
… were studied in the kelp Ecklonia maxima (Phaeophyceae) in ex-situ experiments. It was found that exudation of organic materials only rarely followed a straight accumulatory trend ; fluctuations of kelp-derived substances occurred as a net result of pulsating production patterns coupled …
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STUDIO DEL POSIDONIETO DELLA BAIA DI BRUCOLI (SR): analisi morfometrica, lepidocronologica e studio floristico-vegetazionale della flora algale associata
… delle foglie è composta da 29 Rhodophyceae, 15 Phaeophyceae e 7 Chlorophyceae per un totale di 51 taxa mentre la flora epifita dei rizomi è composta da 38 Rhodophyceae, 7 Pheophyceae e 8 Chlorophyceae per un totale di 53 taxa. L analisi dei dati vegetazionali ha consentito di identificare l …
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Bioecología de la comunidad de macroalgas bentónicas de los arrecifes de ostras en bahía Anegada (Buenos Aires) : potencialidades de explotación y cultivo algal
… estuvo conformada por especies de Rhodophyta, Phaeophyceae y Chlorophyta, de las cuales nueve fueron nuevas para Bahía Anegada, tres fueron nuevas para el sudoeste bonaerense, y una fue primera cita para el Océano Atlántico Sur. Se detectó por primera vez la presencia de Polysiphonia morrowii …
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Scotland’s blue carbon: the contribution from seaweed detritus
… environmental DNA primers specific to the class Phaeophyceae.<br/>In Chapter 2, by combining the habitat extent of macroalgae, and the depositional rates of detritus in kelp forests, it was estimated that between 0.32-0.68 Mt C yr-1 is produced in the form of detritus, a significant amount of …
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Valorización de poblaciones naturales del alga parda Leathesia marina de las costas patagónicas para emprendimientos de maricultura con fines biotecnológicos
… integral de dos poblaciones de Leathesia marina, Phaeophyceae, en la Patagonia argentina. La misma involucra aspectos ecológicos de la especie tales como ciclo de vida, demografía poblacional, estudios fenológicos y de la comunidad de epífitos; así como sus formas de manejo mediante la …
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Assessment of space-time variations and restoration of marine forests for the purposes of biodiversity conservation and climate change mitigation [Valutazione delle variazioni spazio-temporali e ripristino delle foreste marine per la conservazione della biodiversità e la mitigazione dei cambiamenti climatici]
Nel Mar Mediterraneo, le principali specie che formano habitat sono macroalghe dell’ordine Fucales Bory appartenenti al complex Cystoseira sensu lato (s.l.). Queste specie dominano i substrati rocciosi, dall'infralitorale superiore al circalitorale superiore, formando assemblaggi tridimensionali …