The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland

Merien kivikkorantoihin vaikuttavat voimat luovat monipuolisen ja vaihtelevan ympäristön, missä voidaan tutkia suojaisuuden vaikutusta lajien kasvuun ja levinneisyyteen. Vuonna 2011, ennen Fucus spiralis -lajin alalajina pidetty Fucus spiralis var. platycarpus sai lajinimen Fucus guiryi. Laji on myö...

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Main Author: Ahonurmi, Amanda
Other Authors: Matemaattis-luonnontieteellinen tiedekunta, Faculty of Sciences, Bio- ja ympäristötieteiden laitos, Department of Biological and Environmental Science, Jyväskylän yliopisto, University of Jyväskylä
Format: Master's thesis
Language:eng
Published: 2019
Subjects:
Online Access: https://jyx.jyu.fi/handle/123456789/65869
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author Ahonurmi, Amanda
author2 Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Bio- ja ympäristötieteiden laitos Department of Biological and Environmental Science Jyväskylän yliopisto University of Jyväskylä
author_facet Ahonurmi, Amanda Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Bio- ja ympäristötieteiden laitos Department of Biological and Environmental Science Jyväskylän yliopisto University of Jyväskylä Ahonurmi, Amanda Matemaattis-luonnontieteellinen tiedekunta Faculty of Sciences Bio- ja ympäristötieteiden laitos Department of Biological and Environmental Science Jyväskylän yliopisto University of Jyväskylä
author_sort Ahonurmi, Amanda
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description Merien kivikkorantoihin vaikuttavat voimat luovat monipuolisen ja vaihtelevan ympäristön, missä voidaan tutkia suojaisuuden vaikutusta lajien kasvuun ja levinneisyyteen. Vuonna 2011, ennen Fucus spiralis -lajin alalajina pidetty Fucus spiralis var. platycarpus sai lajinimen Fucus guiryi. Laji on myös läheistä sukua lajille F. vesiculosus. Näiden kolmen lajin kokoa ja runsautta ei ole vielä verrattu niiden elinympäristön altistuneisuuteen. Tämän tutkimuksen tavoitteena oli tarkastella kuinka selkeästi nämä kolme lajia eroavat toisistaan Skotlannin länsirannikolla. Toisena tavoitteena oli verrata lajien vyöhykkeitä Skotlannissa eteläisen levinneisyysalueen vyöhykkeisyyteen Portugalissa. Tämän lisäksi tavoitteena oli selvittää kuinka rannan suojaisuus vaikuttaa lajien kokoon ja runsauteen. Suojaisuuden määrittämiseen käytettiin rannan kompassisuuntaa, kaltevuutta ja kasvualustaa. Aineiston keruuta varten käytettiin vuorovesivyöhykkeen yli kulkevia laskentalinjoja. Yksilöiltä mitattiin pituus, ympärysmitta ja varren paksuin kohta. Pituuden ja ympärysmitan avulla laskettiin yksilön tuuheus. Tulokseksi saatiin, että koon ja morfologian perusteella lajit on mahdollista erottaa toisistaan kyseisellä levinneisyysalueella. Eteläisen levinneisyysalueen vyöhykkeisyys on verrattavissa pohjoisemman alueen vyöhykkeisyyteen, vaikka vastaavaa kolmen lajin vyöhykettä ei löytynyt. Koon ja runsauden perusteella F. vesiculosus suosi suojaisempia rantoja, F. guiryi kasvoi samalla lailla suojaisuudesta riippumatta ja F. spiralis menestyi vaihtelevasti kummankinlaisilla rannoilla. Rocky shores are fascinating habitats to study due to their varying conditions. Exposure is an important factor determining the geographic distribution and size of many marine algal species. A brown marine macroalgae Fucus spiralis var. platycarpus was given species status as F. guiryi in 2011. Though it was previously thought to have been a subspecies of F. spiralis, it is also similar to F. vesiculosus in morphology. The size and abundance of these three species have not yet been correlated to their environment and especially F. guiryi is not well known. This study aimed to shed light on how we can separate F. spiralis, F. guiryi, and F. vesiculosus along the west coast of Scotland. The second aim was to compare their zonation in the north to the zonation in their more southern range, including Portugal. The third aim was to understand the role that shore shelteredness played in the size and abundance of these species. Aspect (compass direction), slope, and substrate were recorded for eighteen shores. Transects were laid out to span the intertidal zone inhabited by the species, allowing calculation of percentage cover and zonation. Individuals of each species were measured for their length, maximum circumference, and thallus width. The species were so different in size as well as morphology that it was possible to distinguish them. The zonation patterns found in the species’ southern range are reflected in their northern distribution apart from not having a zone with all three species. F. vesiculosus preferred sheltered shores whilst F. guiryi and F. spiralis showed no distinct preference.
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Vuonna 2011, ennen Fucus spiralis -lajin alalajina pidetty Fucus\nspiralis var. platycarpus sai lajinimen Fucus guiryi. Laji on my\u00f6s l\u00e4heist\u00e4 sukua lajille\nF. vesiculosus. N\u00e4iden kolmen lajin kokoa ja runsautta ei ole viel\u00e4 verrattu niiden\nelinymp\u00e4rist\u00f6n altistuneisuuteen. T\u00e4m\u00e4n tutkimuksen tavoitteena oli tarkastella\nkuinka selke\u00e4sti n\u00e4m\u00e4 kolme lajia eroavat toisistaan Skotlannin l\u00e4nsirannikolla.\nToisena tavoitteena oli verrata lajien vy\u00f6hykkeit\u00e4 Skotlannissa etel\u00e4isen\nlevinneisyysalueen vy\u00f6hykkeisyyteen Portugalissa. T\u00e4m\u00e4n lis\u00e4ksi tavoitteena oli\nselvitt\u00e4\u00e4 kuinka rannan suojaisuus vaikuttaa lajien kokoon ja runsauteen.\nSuojaisuuden m\u00e4\u00e4ritt\u00e4miseen k\u00e4ytettiin rannan kompassisuuntaa, kaltevuutta ja\nkasvualustaa. Aineiston keruuta varten k\u00e4ytettiin vuorovesivy\u00f6hykkeen yli\nkulkevia laskentalinjoja. Yksil\u00f6ilt\u00e4 mitattiin pituus, ymp\u00e4rysmitta ja varren paksuin\nkohta. Pituuden ja ymp\u00e4rysmitan avulla laskettiin yksil\u00f6n tuuheus. Tulokseksi\nsaatiin, ett\u00e4 koon ja morfologian perusteella lajit on mahdollista erottaa toisistaan\nkyseisell\u00e4 levinneisyysalueella. Etel\u00e4isen levinneisyysalueen vy\u00f6hykkeisyys on\nverrattavissa pohjoisemman alueen vy\u00f6hykkeisyyteen, vaikka vastaavaa kolmen\nlajin vy\u00f6hykett\u00e4 ei l\u00f6ytynyt. Koon ja runsauden perusteella F. vesiculosus suosi\nsuojaisempia rantoja, F. guiryi kasvoi samalla lailla suojaisuudesta riippumatta ja F.\nspiralis menestyi vaihtelevasti kummankinlaisilla rannoilla.", "language": "fi", "element": "description", "qualifier": "abstract", "schema": "dc"}, {"key": "dc.description.abstract", "value": "Rocky shores are fascinating habitats to study due to their varying conditions.\nExposure is an important factor determining the geographic distribution and size\nof many marine algal species. A brown marine macroalgae Fucus spiralis var.\nplatycarpus was given species status as F. guiryi in 2011. Though it was previously\nthought to have been a subspecies of F. spiralis, it is also similar to F. vesiculosus in\nmorphology. The size and abundance of these three species have not yet been\ncorrelated to their environment and especially F. guiryi is not well known. 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spellingShingle Ahonurmi, Amanda The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland abundance Fucus guiryi Fucus spiralis exposure intertidal marine rocky shores shelteredness Ekologia ja evoluutiobiologia Ecology and evolutionary biology 4011 rannat rakkolevä ekologia levät lajit merilevät levinneisyys vyöhykkeet shores fucus vesiculosus ecology algae types and species seaweeds distribution zones
title The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland
title_full The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland
title_fullStr The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland
title_full_unstemmed The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland
title_short The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland
title_sort effect of shore characteristics on fucus macroalgae on the west coast of scotland
title_txtP The effect of shore characteristics on Fucus macroalgae on the West coast of Scotland
topic abundance Fucus guiryi Fucus spiralis exposure intertidal marine rocky shores shelteredness Ekologia ja evoluutiobiologia Ecology and evolutionary biology 4011 rannat rakkolevä ekologia levät lajit merilevät levinneisyys vyöhykkeet shores fucus vesiculosus ecology algae types and species seaweeds distribution zones
topic_facet 4011 Ecology and evolutionary biology Ekologia ja evoluutiobiologia Fucus guiryi Fucus spiralis abundance algae distribution ecology ekologia exposure fucus vesiculosus intertidal lajit levinneisyys levät marine merilevät rakkolevä rannat rocky shores seaweeds shelteredness shores types and species vyöhykkeet zones
url https://jyx.jyu.fi/handle/123456789/65869 http://www.urn.fi/URN:NBN:fi:jyu-201910144449
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