5 Benthic Autotrophs - Benthie Autetrephs I Phetesynthefie...

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Unformatted text preview: Benthie Autetrephs I Phetesynthefie vs Chemesynthefle I Phetesynthefie — Menera (elderephjrll eentailling Cyanehaeteria) — Menera (Green 3: Purple sulfer haeteria) — Prefista (single eelled V5 mulfleellular) I Single eelled: Chrfsephyta, Ehedephyta, Elder ephjrta, Ilinephyta I Multieellular: Rhedephfia, Chlerephyta, Phaeephyta — Plantae (Traeheephyta) I See grasses, marsh grasses, mangals Nficrephytebenthes I Primarily diatems, dinetlagellates, and eyanehaeteria I Are i'enntl in shalleiar water surface sediments, as films en reek, and grewing epiphytieally en ether marine plants and animals - Their [listrihntien is strengl}r eentrelletl by light with highest pepnlatien [lensities i'enntl in the shallewer waters, althen gh mier ephyteh enthes have been i'enntl te e‘sist in light regimes that are enlj,r 5% ei' snri'aee incident light (i.e. El] 111 in the Nerth Sea). Sediment influence en Mierephytehenthes - Fennd in Inndd}r as well as send}r eesstsl sediments - In send}r er high light environments the Here is delninsted h},r dintmns versus lewa‘ light regilnes which fewer eysneh seteris and dineilngellstes - In high energy,r fll‘fl'I‘flIIlIflEIltS where distents predelninste the}r can he i'ennd as deep as Ill eln ' In i'nler grsined ensirenln ents heesnse were energy,r dees net frequently,r min the sediment and light penetrsfien is shsllewer the Inierephyteh enthie eulnnlnnnitj,r tends te he Inneh shsllewer Sediment Diatunls ' Certain diatclns (especially the pennate farms) are nlutile and undergc rhytlunic rertical Inigrafluns assuciated with tidal and light cycles ' a. ccnuncnly rep crted rertical nligraticn (i.e., Hmstsschs'd) is ta Inure intu surface sediInent strata dining daytime law tides and then ta niece intu deeper sediments priur ta incclning high tides - Fur ether types such as Afltflflfli’ the migraiiun inrchres departure train the sediment and Increment intu the water cclunnl. They hegin this cycle in the nlurning and while in the water culunul they attach ta huhhles and became part at the surface fcaln — by late afternccn they hegin returning tn the sediment Salt marsh miernphytnbenthns ' In many salt marsh entriremnents the prednetinn hf; the miernphytnh enthns apprnaehes that at the emmergent grasses. Althnngh man}; speeies ni‘ diatnms may he fund in the miernphytehenthns generally there are [Illlj‘ 34 dnmhtant genera (i.e. in a GA salt marsh 911% were at' the genera were at Qpidsflntfleeta (firth Nmrfieula, nr Ndzchs'd) - A gradatinn ni' dnminant ta'sa at miernphytnhenthns h}; latitude exists within salt marshes, with eyannhaeteria dnminathtg the sm'i'aees ni' nnregetated areas ht higher latitudes gradhtg tn diatnms in lnwer latitudes ...
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5 Benthic Autotrophs - Benthie Autetrephs I Phetesynthefie...

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