FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1982997720> ?p ?o ?g. }

• W1982997720 endingPage "259" @default.
• W1982997720 startingPage "233" @default.
• W1982997720 abstract "The scleractinian (reef-building) coral Agaricia tenuifolia (Dana) is one of the most common constituents of the barrier reef of Belize, Central America. This species grows almost exclusively in aggregations of clonemates and conspecifics, in which rows of thin, upright blades line up behind one another facing the dominant direction of flow. We quantified patterns in colony morphology, light levels and mainstream flow over a range of physical habitats (fore reef, patch reef and lagoon locations) near Carrie Bow Cay and in the Pelican Cays. Water flow and light levels both decreased with depth on the fore reef. Light levels in the lagoon environment (1 m depth) were comparable to those at the same depth on the fore reef, but flow speeds were markedly lower. Aggregation size, branch spacing, height and width all varied with location. Mean branch spacing increased with depth on the fore reef by approximately 50%, but total branch height increased by only 20–25%, indicating that the shape of colonies did not remain constant. Colonies in the 1 m lagoon habitat (high light, low flow) were very similar to those at 1 m on the fore reef (high light, high flow). These results thus suggested that colony morphology was insensitive to the flow regime, despite previous studies that have linked flow-dependent mass flux to both coral respiration and symbiont (zooxanthellae) photosynthesis. Because of this discrepancy, we examined the effect of one aggregation parameter, branch spacing, to test the null hypothesis that mass flux to a coral's tissues is unaffected by colony morphology. We used two non-dimensional parameters, the Reynolds number (Re) and the Sherwood number (Sh), to examine the interaction between flow, morphology and mass transport. Using physical scaling arguments, we measured water loss rates from scale models in air as proxies for gas flux from corals in water. We created two types of solitary models, horizontal (unifacial) and upright (bifacial) plates and two types of aggregations, widely-spaced (5 cm between rows) and tightly-spaced (2.5 cm spacing), to examine how morphology affects mass flux to a branch's surface under conditions of uniform flow. Measurements at two Re (4 000 and 21 000) and two turbulence levels in uniform flow showed that mass flux is significantly higher in solitary models compared to aggregations. Mass flux from branches within aggregations was highest at branch tips and decreased closer to the bottom. Measurements of boundary layer profiles overlying aggregations indicated higher boundary layer diffusivities to the surface of the tightly-spaced aggregation, per unit of substrate area. However, the increased amount of tissue surface area in these aggregations led to a lower flux per unit of coral tissue. Our results suggest that the coral A. tenuifolia displays different aggregation structures in response to light but not water flow, at least in shallow, high light environments. Nonetheless, our laboratory experiments show that branch spacing within an aggregation has significant effects on the flux of gases to the surface of corals. Because photosynthesis depends upon both mass flux and light, this apparent contradiction between field patterns and laboratory results suggests that A. tenuifolia and its symbionts may adapt physiologically rather than morphologically to variation in the local flow regime. The optimal branch spacing in any given environment is thus unlikely to result from a single selective pressure but rather from a suite of environmental parameters acting in concert, including light, water flow, sedimentation rate, hydromechanical stresses and competition for space." @default.
• W1982997720 created "2016-06-24" @default.
• W1982997720 creator A5014987559 @default.
• W1982997720 creator A5050544933 @default.
• W1982997720 creator A5059993085 @default.
• W1982997720 date "1997-02-01" @default.
• W1982997720 modified "2023-09-23" @default.
• W1982997720 title "Morphological variation in coral aggregations: branch spacing and mass flux to coral tissues" @default.
• W1982997720 cites W1979051595 @default.
• W1982997720 cites W1980824691 @default.
• W1982997720 cites W1988304825 @default.
• W1982997720 cites W2000874019 @default.
• W1982997720 cites W2007323570 @default.
• W1982997720 cites W2009383106 @default.
• W1982997720 cites W2013501805 @default.
• W1982997720 cites W2013592563 @default.
• W1982997720 cites W2018872534 @default.
• W1982997720 cites W2021376907 @default.
• W1982997720 cites W2026457920 @default.
• W1982997720 cites W2029623635 @default.
• W1982997720 cites W2031159005 @default.
• W1982997720 cites W2034389240 @default.
• W1982997720 cites W2056249187 @default.
• W1982997720 cites W2062788445 @default.
• W1982997720 cites W2065138459 @default.
• W1982997720 cites W2071726944 @default.
• W1982997720 cites W2085955083 @default.
• W1982997720 cites W2096085380 @default.
• W1982997720 cites W2103622176 @default.
• W1982997720 cites W2104001285 @default.
• W1982997720 cites W2133761475 @default.
• W1982997720 cites W2149776582 @default.
• W1982997720 cites W2156475849 @default.
• W1982997720 cites W2156552155 @default.
• W1982997720 cites W2158779154 @default.
• W1982997720 cites W2346888261 @default.
• W1982997720 cites W4236308789 @default.
• W1982997720 cites W81735652 @default.
• W1982997720 doi "https://doi.org/10.1016/s0022-0981(96)02687-1" @default.
• W1982997720 hasPublicationYear "1997" @default.
• W1982997720 type Work @default.
• W1982997720 sameAs 1982997720 @default.
• W1982997720 citedByCount "78" @default.
• W1982997720 countsByYear W19829977202012 @default.
• W1982997720 countsByYear W19829977202013 @default.
• W1982997720 countsByYear W19829977202014 @default.
• W1982997720 countsByYear W19829977202015 @default.
• W1982997720 countsByYear W19829977202016 @default.
• W1982997720 countsByYear W19829977202017 @default.
• W1982997720 countsByYear W19829977202019 @default.
• W1982997720 countsByYear W19829977202020 @default.
• W1982997720 countsByYear W19829977202021 @default.
• W1982997720 countsByYear W19829977202022 @default.
• W1982997720 countsByYear W19829977202023 @default.
• W1982997720 crossrefType "journal-article" @default.
• W1982997720 hasAuthorship W1982997720A5014987559 @default.
• W1982997720 hasAuthorship W1982997720A5050544933 @default.
• W1982997720 hasAuthorship W1982997720A5059993085 @default.
• W1982997720 hasConcept C111368507 @default.
• W1982997720 hasConcept C122629976 @default.
• W1982997720 hasConcept C127313418 @default.
• W1982997720 hasConcept C143020374 @default.
• W1982997720 hasConcept C151730666 @default.
• W1982997720 hasConcept C159985019 @default.
• W1982997720 hasConcept C18903297 @default.
• W1982997720 hasConcept C192562407 @default.
• W1982997720 hasConcept C204323151 @default.
• W1982997720 hasConcept C2777866282 @default.
• W1982997720 hasConcept C43144210 @default.
• W1982997720 hasConcept C523546767 @default.
• W1982997720 hasConcept C77044568 @default.
• W1982997720 hasConcept C79367842 @default.
• W1982997720 hasConcept C86803240 @default.
• W1982997720 hasConceptScore W1982997720C111368507 @default.
• W1982997720 hasConceptScore W1982997720C122629976 @default.
• W1982997720 hasConceptScore W1982997720C127313418 @default.
• W1982997720 hasConceptScore W1982997720C143020374 @default.
• W1982997720 hasConceptScore W1982997720C151730666 @default.
• W1982997720 hasConceptScore W1982997720C159985019 @default.
• W1982997720 hasConceptScore W1982997720C18903297 @default.
• W1982997720 hasConceptScore W1982997720C192562407 @default.
• W1982997720 hasConceptScore W1982997720C204323151 @default.
• W1982997720 hasConceptScore W1982997720C2777866282 @default.
• W1982997720 hasConceptScore W1982997720C43144210 @default.
• W1982997720 hasConceptScore W1982997720C523546767 @default.
• W1982997720 hasConceptScore W1982997720C77044568 @default.
• W1982997720 hasConceptScore W1982997720C79367842 @default.
• W1982997720 hasConceptScore W1982997720C86803240 @default.
• W1982997720 hasIssue "1-2" @default.
• W1982997720 hasLocation W19829977201 @default.
• W1982997720 hasOpenAccess W1982997720 @default.
• W1982997720 hasPrimaryLocation W19829977201 @default.
• W1982997720 hasRelatedWork W1607533721 @default.
• W1982997720 hasRelatedWork W1892190784 @default.
• W1982997720 hasRelatedWork W1975854548 @default.
• W1982997720 hasRelatedWork W2053133092 @default.
• W1982997720 hasRelatedWork W2053188376 @default.
• W1982997720 hasRelatedWork W2082029394 @default.

• next