Anaerobiosis and a Theory of Growth Line Formation
Microstructural growth increments within the shells of numerous Recent and fossil molluscs are interpreted as reflections of alternating periods of shell deposition and dissolution, occurring during aerobic and anaerobic respiration, respectively. The acidic end products of anaerobic metabolism are...
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Veröffentlicht in: | Science (American Association for the Advancement of Science) 1977-12, Vol.198 (4323), p.1222-1227 |
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creator | Lutz, Richard A. Rhoads, Donald C. |
description | Microstructural growth increments within the shells of numerous Recent and fossil molluscs are interpreted as reflections of alternating periods of shell deposition and dissolution, occurring during aerobic and anaerobic respiration, respectively. The acidic end products of anaerobic metabolism are neutralized by calcium carbonate from the shell, leaving a relatively insoluble organic residue at the mantle-shell interface. With the return of oxygenated conditions and resumption of aerobic respiration, this organic material is reincorporated within the shell. Inasmuch as metabolic changes are often synchronized with lunar or solar cycles (or both), we are led to the nearly paradoxical conclusion that, as a result of shell destructive processes, a relatively complete and detailed record of both short- and long-term growth is often preserved within the molluscan exoskeleton. Analyses of relationships between ambient oxygen concentrations and shell structural types may eventually prove useful, in paleoecological studies, for determination of dissolved oxygen gradients in Phanerozoic marine environments. |
doi_str_mv | 10.1126/science.198.4323.1222 |
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The acidic end products of anaerobic metabolism are neutralized by calcium carbonate from the shell, leaving a relatively insoluble organic residue at the mantle-shell interface. With the return of oxygenated conditions and resumption of aerobic respiration, this organic material is reincorporated within the shell. Inasmuch as metabolic changes are often synchronized with lunar or solar cycles (or both), we are led to the nearly paradoxical conclusion that, as a result of shell destructive processes, a relatively complete and detailed record of both short- and long-term growth is often preserved within the molluscan exoskeleton. Analyses of relationships between ambient oxygen concentrations and shell structural types may eventually prove useful, in paleoecological studies, for determination of dissolved oxygen gradients in Phanerozoic marine environments.</description><identifier>ISSN: 0036-8075</identifier><identifier>EISSN: 1095-9203</identifier><identifier>DOI: 10.1126/science.198.4323.1222</identifier><identifier>PMID: 17741686</identifier><language>eng</language><publisher>United States: American Association for the Advancement of Science</publisher><subject>Anaerobiosis ; Animal organs ; Aragonite ; Calcium carbonates ; Crystals ; Mollusks ; Organic foods ; Organic materials ; Oxygen ; Physiological aspects ; Writing tablets</subject><ispartof>Science (American Association for the Advancement of Science), 1977-12, Vol.198 (4323), p.1222-1227</ispartof><rights>Copyright 1977 American Association for the Advancement of Science</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c414t-7c1e4a09521e32612f6643bf9ff69b8f31a6ec1464ade4f80bdf9dc6e7d6585e3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/1745830$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/1745830$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>314,780,784,803,27924,27925,58017,58250</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/17741686$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Lutz, Richard A.</creatorcontrib><creatorcontrib>Rhoads, Donald C.</creatorcontrib><title>Anaerobiosis and a Theory of Growth Line Formation</title><title>Science (American Association for the Advancement of Science)</title><addtitle>Science</addtitle><description>Microstructural growth increments within the shells of numerous Recent and fossil molluscs are interpreted as reflections of alternating periods of shell deposition and dissolution, occurring during aerobic and anaerobic respiration, respectively. The acidic end products of anaerobic metabolism are neutralized by calcium carbonate from the shell, leaving a relatively insoluble organic residue at the mantle-shell interface. With the return of oxygenated conditions and resumption of aerobic respiration, this organic material is reincorporated within the shell. Inasmuch as metabolic changes are often synchronized with lunar or solar cycles (or both), we are led to the nearly paradoxical conclusion that, as a result of shell destructive processes, a relatively complete and detailed record of both short- and long-term growth is often preserved within the molluscan exoskeleton. Analyses of relationships between ambient oxygen concentrations and shell structural types may eventually prove useful, in paleoecological studies, for determination of dissolved oxygen gradients in Phanerozoic marine environments.</description><subject>Anaerobiosis</subject><subject>Animal organs</subject><subject>Aragonite</subject><subject>Calcium carbonates</subject><subject>Crystals</subject><subject>Mollusks</subject><subject>Organic foods</subject><subject>Organic materials</subject><subject>Oxygen</subject><subject>Physiological aspects</subject><subject>Writing tablets</subject><issn>0036-8075</issn><issn>1095-9203</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1977</creationdate><recordtype>article</recordtype><recordid>eNpN0EFLwzAUB_AgipvTb6DSmwdpzUvSND2O4VQY7DLPJU1ftowumU2H7ttb2ARP7_D_8X-PR8gD0AyAyZdoHHqDGZQqE5zxDBhjF2QMtMzTklF-ScaUcpkqWuQjchPjltIhK_k1GUFRCJBKjgmbeo1dqF2ILibaN4lOVhsM3TEJNnnrwne_SRbOYzIP3U73LvhbcmV1G_HuPCfkc_66mr2ni-Xbx2y6SI0A0aeFARR62MgAOZPArJSC17a0Vpa1shy0RANCCt2gsIrWjS0bI7FoZK5y5BPydOrdd-HrgLGvdi4abFvtMRxiVXAOBRSUDfL5JNe6xcp5E3yPP70JbYtrrIarZstqCnTQSg768dx7qHfYVPvO7XR3rP6eMoD7E9jGPnT_cpErTvkvLwptTQ</recordid><startdate>19771223</startdate><enddate>19771223</enddate><creator>Lutz, Richard A.</creator><creator>Rhoads, Donald C.</creator><general>American Association for the Advancement of Science</general><scope>NPM</scope><scope>7X8</scope></search><sort><creationdate>19771223</creationdate><title>Anaerobiosis and a Theory of Growth Line Formation</title><author>Lutz, Richard A. ; Rhoads, Donald C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c414t-7c1e4a09521e32612f6643bf9ff69b8f31a6ec1464ade4f80bdf9dc6e7d6585e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1977</creationdate><topic>Anaerobiosis</topic><topic>Animal organs</topic><topic>Aragonite</topic><topic>Calcium carbonates</topic><topic>Crystals</topic><topic>Mollusks</topic><topic>Organic foods</topic><topic>Organic materials</topic><topic>Oxygen</topic><topic>Physiological aspects</topic><topic>Writing tablets</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lutz, Richard A.</creatorcontrib><creatorcontrib>Rhoads, Donald C.</creatorcontrib><collection>PubMed</collection><collection>MEDLINE - Academic</collection><jtitle>Science (American Association for the Advancement of Science)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lutz, Richard A.</au><au>Rhoads, Donald C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anaerobiosis and a Theory of Growth Line Formation</atitle><jtitle>Science (American Association for the Advancement of Science)</jtitle><addtitle>Science</addtitle><date>1977-12-23</date><risdate>1977</risdate><volume>198</volume><issue>4323</issue><spage>1222</spage><epage>1227</epage><pages>1222-1227</pages><issn>0036-8075</issn><eissn>1095-9203</eissn><abstract>Microstructural growth increments within the shells of numerous Recent and fossil molluscs are interpreted as reflections of alternating periods of shell deposition and dissolution, occurring during aerobic and anaerobic respiration, respectively. The acidic end products of anaerobic metabolism are neutralized by calcium carbonate from the shell, leaving a relatively insoluble organic residue at the mantle-shell interface. With the return of oxygenated conditions and resumption of aerobic respiration, this organic material is reincorporated within the shell. Inasmuch as metabolic changes are often synchronized with lunar or solar cycles (or both), we are led to the nearly paradoxical conclusion that, as a result of shell destructive processes, a relatively complete and detailed record of both short- and long-term growth is often preserved within the molluscan exoskeleton. Analyses of relationships between ambient oxygen concentrations and shell structural types may eventually prove useful, in paleoecological studies, for determination of dissolved oxygen gradients in Phanerozoic marine environments.</abstract><cop>United States</cop><pub>American Association for the Advancement of Science</pub><pmid>17741686</pmid><doi>10.1126/science.198.4323.1222</doi><tpages>6</tpages></addata></record> |
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source | JSTOR Archive Collection A-Z Listing; American Association for the Advancement of Science |
subjects | Anaerobiosis Animal organs Aragonite Calcium carbonates Crystals Mollusks Organic foods Organic materials Oxygen Physiological aspects Writing tablets |
title | Anaerobiosis and a Theory of Growth Line Formation |
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