Academic literature on the topic 'Cardiidae'

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Journal articles on the topic "Cardiidae"

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Schneider, Jay A. "Fusion of radial ribs in Cardiidae (Bivalvia: Veneroida): implications for phylogenetic reconstruction and the study of iterative homology." Paleontological Society Special Publications 6 (1992): 260. http://dx.doi.org/10.1017/s2475262200008200.

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To properly reconstruct the phylogeny of a taxon, it is necessary to determine homologies among taxa. The assumption that repeated structures are iterative homologues has resulted in phylogenetic confusion. Radial ribs have long been used as important taxonomic characters in bivalves, but a cladistic analysis of the Cardiidae has shown that radial ribs are not homologous across genera.Pre-Aptian cardiids have either simple, unornamented ribs, or have lost the ribs entirely. The genus Granocardium originates in the Aptian and has large spines on every third or fourth rib interspace. This row of spines is connected by a raised striation. The interspace bearing these spines is raised relative to other interspaces. Criocardium, a subgenus of Granocardium, originates in the Upper Cretaceous and has rows of small spines, also connected by a raised striation, on the interspaces not occupied by large spines; these interspaces are not concomitantly raised.When the character states of the large and small spines, their respective striations, ribs and interspaces are analyzed throughout the Cardiidae, it becomes apparent that adjacent pairs of ribs have fused independently on three occasions. In Cenozoic cardiids, the large spines and their striations are not between ribs but on top of them. On many taxa, the top of the rib is concave, reflecting the rib top's homology with the rib interspace of Granocardium. Furthermore, some taxa bear the remnants of Criocardium's row of small spines connected by a striation in the rib interspaces. The Maastrichtian Perucardia has an intermediate morphology, with the anterior and posterior slopes as in the Cretaceous Criocardium while the central slope has the ribbing pattern of Cenozoic cardiids.Cladistic analysis demonstrates that Cretaceous cardiids once put into the Neogene genera Fragum and Bucardium are allied with Criocardium. Species placed in Fragum resemble that genus only in its trigonal shell shape; they share the interspace spines and several other characters witth Criocardium and belong in Profragum Badve 1977. Species placed in Bucardium on the basis of round shell shape and reduction in rib number are properly placed in Austrocardium Freneix and Grant-Mackie 1978, and share the interspace striation and other characters with Criocardium. Austrocardium is another example of rib fusion: a groove, homologous to a rib interspace, runs down the top of each rib; this accounts for the reduction in rib number.A third example of rib fusion occurs in some species of the Cenozoic genus Hedecardium. Two ribs (each one homologous to a pair of ribs in Granocardium) undergo an additional episode of fusion, forming a single rib with two parallel rows of spines and striations on top of the rib; a single one of these ribs would therefore be homologous to four ribs on Granocardium.Fusion of iterative homologues has been discerned in many arthropods. Pairs of metameric segments have fused, leaving individual segments with twice the number of anatomical structures usually associated with a single segment. Radial ribs are not metameric (but are iterative) since they radiate from a single point as opposed to being repeated in a linear sequence. Rib fusion operating alone would imply a fifty per cent reduction in rib number, and in Austrocardium the rib number is halved. Cenozoic cardiids have fewer ribs than their Cretaceous ancestors, but only by about twenty per cent. Fusion is only one of several processes that regulate rib number on cardiids.
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Березовский, А. А. "Новые виды Cardiidae (Bivalvia) из эоцена Украины." Палеонтологический журнал, no. 1 (2021): 22–34. http://dx.doi.org/10.31857/s0031031x21010049.

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Thach, Nguyen. "A new Vasticardium (Bivalvia: Cardiidae) from Vietnam." Festivus 46, no. 5 (November 1, 2014): 145–49. http://dx.doi.org/10.54173/f465145.

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new species of genus Vasticardium Iredale, 1927 is described from Khánh Hòa, Central Vietnam and compared to three other species of this genus: Vasticardium elongatum wilsoni (Voskuil & Onverwagt, 1991), Vasticardium hyllebergi Thach, 2014 and Vasticardium philippinense (Hedley, 1899).
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Thach, Nguyen. "A new Vasticardium (Bivalvia: Cardiidae) from Vietnam." Festivus 46, no. 4 (August 1, 2014): 115–20. http://dx.doi.org/10.54173/f464115.

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A new species of genus Vasticardium Iredale, 1927 is described from Phan Thiết, Central Vietnam and compared to three other species of this genus: Vasticardium fidele (Vidal, 1992), Vasticardium elongatum cipangense (Vidal, 1999) and Vasticardium elongatum wilsoni (Voskuil & Onverwagt, 1991).
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Nevesskaja, L. A. "History of the genus Didacna (Bivalvia: Cardiidae)." Paleontological Journal 41, no. 9 (November 2007): 861–949. http://dx.doi.org/10.1134/s0031030107090018.

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HERNAWAN, UDHI EKO. "Taxonomy of Indonesian giant clams (Cardiidae, Tridacninae)." Biodiversitas, Journal of Biological Diversity 13, no. 3 (July 1, 2012): 118–23. http://dx.doi.org/10.13057/biodiv/d130303.

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Palaz, Mustafa, and Selcuk Berber. "The bivalve species of the Dardanelles." Journal of the Marine Biological Association of the United Kingdom 85, no. 2 (March 31, 2005): 357–58. http://dx.doi.org/10.1017/s0025315405011264h.

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The bivalvia species of the Dardanelles were investigated at the upper infralittoral zone, by diving and dredge. Various species belonging to 14 families were identified in the Dardanelles. The families are as follows: Mytilidae, Ostreidae, Cardiidae, Pimidae, Solenidae, Pectinidae, Arcidae, Nuculidae, Veneridae, Donacidae, Tellinidae, Anomidae, Scrobiculariidae and Gastrochaenidae.
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Vidal, Jacques. "Variability ofAcrosterigma elongatum,a polytypic species (Mollusca, Cardiidae)." Journal of the Malacological Society of Australia 14, no. 1 (August 1993): 41–58. http://dx.doi.org/10.1080/00852988.1993.10674041.

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Soo, Pamela, and Peter A. Todd. "The behaviour of giant clams (Bivalvia: Cardiidae: Tridacninae)." Marine Biology 161, no. 12 (October 2, 2014): 2699–717. http://dx.doi.org/10.1007/s00227-014-2545-0.

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Khaliman, Ihor. "THE POPULATION STATUS OF CARDІІDAE (BІVALVІA) AS A BIOINDICATOR FOR WATER QUALITY IN THE NORTH-WESTERN PART OF THE SEA OF AZOV." EUREKA: Life Sciences 6 (November 30, 2016): 44–51. http://dx.doi.org/10.21303/2504-5695.2016.00246.

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An attempt was made to evaluate the suitability of using mollusc populations from the family Cardiidae as a biological indicator to monitor ecological water quality in the north-western part of the Sea of Azov. It is known that some qualitative indices of mollusc populations reflect large-scale changes occurring in benthos communities of the region. In this research, the monitoring of aquatic organisms was carried out using such indices as population density, age distribution dynamics, characteristics of behaviour, etc. Temporal and spatial dynamics of these indices allow the detection of changes in environmental factors which in their turn determine basic and crucial functions of water bodies. Among other molluscs, representatives of the family Cardiidae stand out for their ability of rapid occupation of new locations (due to the presence of a pelagic larval stage), and their adult individuals are rather tolerant to fluctuations in salinity and other factors. The aim of this research was to reveal the variability range for basic qualitative characteristics of bivalve populations in the north-western part of the Sea of Azov and to estimate if these molluscs are suitable to be bioindicators of the environmental status of the region.
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Dissertations / Theses on the topic "Cardiidae"

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Kirkendale, Lisa Ann. "Evolution of photosymbiosis in marine bivalves (Cardiidae: Fraginae)." [Gainesville, Fla.] : University of Florida, 2005. http://purl.fcla.edu/fcla/etd/UFE0013020.

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Leung, Tommy Ling Fong, and n/a. "Interspecific and intraspecific interactions of trematodes parasitising the New Zealand cockle Austrovenus stutchburyi." University of Otago. Department of Zoology, 2008. http://adt.otago.ac.nz./public/adt-NZDU20090105.160127.

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Most organisms are rarely infected with just a single species of parasite and are usually simultaneously infected with a range of species. Thus, the parasite fauna of a host represents an entire community composed of multiple individuals from many different species. In nature, it is within the host that parasites can encounter conspecifics and individuals from other species. As in any ecosystem, while such interactions between parasites can be antagonistic due to competition or conflicting interests, association between different species can also be beneficial. In this thesis, I investigated patterns of associations between parasites in the New Zealand cockle Austrovenus stutchburyi through a combination of descriptive and experimental studies employing both standard ecological field techniques and molecular biology methods. It was found that the presence and infection intensity of various parasites species are not independent of each other. Among cockles, an association was found between two trematode taxa, i.e. between the infection intensity by foot-encysting echinostomes and the metacercariae of Gymnophallus sp. It was also found that the presence of the parasitic copepod Pseudomyicola spinosus was associated with greater infection intensity by the echinostomes but not Gymnophallus sp. While it was postulated that the positive association between the echinostomes and Gymnophallus sp. was due to the latter�s preference to infect cockles that are stranded on the sediment surface as a result of heavy echinostome metacercariae burden in their foot, a field experiment found that Gymnophallus cercariae did not preferentially infect cockles that have been forced to remain above the sediment surface as opposed to those that were forced to remain buried. Meanwhile, the two species of echinostomes known to encyst in the cockle�s foot, Acanthoparyphium sp. and Curtuteria australis, were found to represent cryptic species complexes. The presence of such cryptic species means that it is possible that some potential interspecific interactions are overlooked. A study of the population structure of Gymnophallus sp. found that each cockle contains multiple genetically distinct individuals and that clonal individuals rarely co-occur in the same cockle. This adds to the growing body of evidence suggesting that in addition to acting as a means of reaching the definitive host, the second intermediate host also acts to promote genetic diversity by accumulating cercariae shed by multiple first intermediate hosts in the environment. An experimental infection study conducted with Curtuteria australis cercariae deriving from singly-infected first intermediate hosts revealed that different clonal lineages varied with respect to their contribution to host manipulation. It was found that while certain lineages have a preference for host manipulation, others tend to adopt a "hitch-hiker"-type life history strategy. However, this genetic predisposition was also found to be a phenotypically plastic trait, as the presence of a higher number of manipulators seems to encourage newly-arrived cercariae to become manipulators, regardless of clonal lineage. This thesis provides evidence that patterns of interactions can affect various aspects of parasite life history. Apart from host condition, parasites can also be affected by other parasites. Studying the dynamics of mixed infections can provide informative insights for evolutionary and ecological research.
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Simpson, Julia Marie. "Effects of heavy metal contamination on burial rates of Austrovenus stutchburyi implications for sediment transport /." The University of Waikato, 2009. http://hdl.handle.net/10289/2766.

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Urbanisation in coastal catchments has significantly increased not only the input of terrestrial sediment to the marine environment but also the input of contaminants. In Tamaki Estuary, Auckland, heavy metals have accumulated in the upper estuarine muddy sediments and metal contamination has been detected on downstream intertidal sandflats. Sub-lethal levels of heavy metal contamination may affect the growth and behaviour of benthic organisms, which in turn may influence key ecosystem processes and productivity. The aim of this study was to examine whether the burial rate of an ecologically important bivalve species (Austrovenus stutchburyi) differed between a contaminated and a lesser-contaminated site and whether burial rates were affected by density. A secondary aim was to determine whether the burial of Austrovenus affected sediment transport and consequently if this was affected by density. This study demonstrated no consistent difference in burial time between source populations (sites). This was explained by a lack of measured difference in the condition index and heavy metal tissue loading of Austrovenus used throughout this study. The present range of contamination measured in Tamaki Estuary, Auckland, did not have negative biological consequences on the key ecosystem engineer, Austrovenus stutchburyi. Contamination levels in Tamaki Estuary may not be high enough to cause major physiological or behaviour changes to infaunal organisms, such as Austrovenus. Sediment erodability was not significantly correlated with any measured environmental and biotic factors. Austrovenus density was the only predictor variable that could be used to explain any variation in sediment erodability. There was no significant density effects observed between the amounts of sediment eroded for densities gt; 150 ind. m-2. There was a significant difference between sediment void of Austrovenus (0 ind. m-2; smooth, flat undisturbed sediment surface) and sediment containing Austrovenus (gt;150ind. m-2; physical structure on/in the sediment surface, increase in bed roughness). These results indicate that there is little or no effect of Austrovenus on the critical erosion threshold, suggesting that in the absence or presence of Austrovenus the current required to erode 10 g m-2 of sediment would remain somewhere between 28.5 and 30.5 cm s-1. This study found that there was considerable variation in the burial rate of individuals and the greatest variation was recorded in the lowest density treatments (150 ind. m-2), which corresponded to the same density that had the greatest variation in sediment erodability. Further investigations are needed to gain a better understanding into the important roles (the importance of the various feedbacks and limitations and interrelationships) that Austrovenus play in the soft-sediment ecosystem, as losses of this species are likely to have large-scale impacts on the wider soft-sediment communities and ecosystem functioning.
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Chaabouni, Rim. "Utilisation et mise au point au niveau moléculaire de biomarqueurs pour étudier la répartition spatiale de la contamination au voisinage d’une source de pollution." Le Mans, 2009. http://cyberdoc.univ-lemans.fr/theses/2009/2009LEMA1016.pdf.

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La répartition spatiale du Cd et son impact écotoxicologique ont été évalués à l'aide des biomarqueurs métallothionéines (MT), malonedialdéhyde (MDA) et acétylcholinéstérase (AChE). Les résultats montrent que la contamination migre vers le sud par les courants de direction nordsud. Les teneurs en biomarqueurs reflètent l'état alarmant de cet écosystème. La palourde Rudifapes decussatus et la coque Cerastoderma glaucum ont pu développer des systèmes adaptatifs particuliers pour survivre dans de telles conditions. Deux séquences partielles d'ADNc MT ont été clonées et utilisées comme sonde pour mesurer le taux d'ARN MT. L'analyse en dot blot a confirmé l'induction de l'expression du gène MT dans les branchies des animaux contaminés. Une différentiation génétique entre différentes populations de C. Glaucum (Méditerranée, Atlantique, Mer du Nord) et C. Edule (Atlantique et Mer du Nord) a été réalisée à l'aide des séquences 28S, ITSI et COI
The spatial distribution of Cd was studied and its toxicological impact was evaluated using metallothionein (MT), malonedialdehyde (MDA) and acetylcholinesterase (AChE) as biomarkers. Results showed that Cd contamination migrates southward the polluted site by the NS currents. The biomarkers concentrations reflect the alarming state of this ecosystem. The clam Ruditapes decussatus and the cockle Cerastoderma glaucum may have settled up sorne peculiar adaptive strategies to survive in such conditions. Two partial MT cDNAs were cloned from R. Decussatus and C. Glaucum and used as probes to quantify the MT mRNA levels. Dot blot analysis confirmed the induction of MT gene expression in gills of the contaminated animaIs. A genetic discrimination between different populations of C. Glaucum from the Mediterranean sea, Atlantic and the North sea, and C. Edule from Atlantic and the North sea were performed using the 28S, ITSI and COI sequences
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Desclaux, Céline. "Interactions hôtes-parasites : diversité, mécanismes d'infestation et impact des trématodes digènes sur les coques Cerastoderma edule (mollusque bivalve) en milieu lagunaire macrotidal." Bordeaux 1, 2003. http://www.theses.fr/2003BOR12695.

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Les parasites font partie intégrante des écosystèmes terrestres, marins et lagunaires, ne serait-ce que par leur omniprésence. L'inventaire des macroparasites présents au sein des communautés de mollusques du Bassin d'Arcachon (lagune macrotidale atlantique) a permis d'identifier, à partir de onze espèces de mollusques, 21 familles et 35 espèces de Trématodes Digènes, avec notamment la découverte de deux Himasthlinae très présents en terme de prévalence et d'abondance, Himasthla quissetensis et Curtuteria sp. Les coques, Cerastoderma edule (Molluque bivalve), peuvent être infestées par 12 espèces diffférentes, devenant alors un vrai 'réservoir' à Digènes. Le nouvel Himasthlinae curtuteria sp. , jamais recensé en Europe, a été décrit en microscopie optique et en microscopie électronique à balayage et comparé aux différents Himasthlinae du Bassin d'Arcachon. L'étude de son cycle a été abordée ; son premier hôte reste encore inconnu. -Cette étude a aussi mis en évidence la dominance, en terme de prévalence et d'abondance, des deux Digènes Labratrema minimus (coque = 1er hôte intermédiaire) et H. Quissetensis (coque = 2nd hôte intermédiaire) au sein de deux populations de coques, localisées au Banc d'Arguin et à La Canelette. L'étude des modalités d'infestation par H. Quissetensis a identifié, à l'aide de mesures de température et d'expériences de transplantation de coque, une infectation estivale (juin-ocotbre) des coques, liée à la température de la masse d'eau (supérieur ou égal à 17°C). Des expériences de chonobiologie en laboratoire pour diverses températures (15 à 23°C) et phase lumineuses (J/N et N/J), ainsi que des échantillonnages de cercaires in situ dans la masse d'eau, ont permis de déterminer les critères optimums d'émission et d'infestation de ce Digène, en relation avec l'activité biologique maximale du premier h^ote, le gastéropode Nassarius reticulatus. Ce travail a également quantifié l'impact parasitaire des espèces dominantes L. Minimus et plus spécialement H. Quissetensis sur deux populations de coques du Bassin d'Arcachon en terme de mortalité.
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Books on the topic "Cardiidae"

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Cardiidae (Mollusca, Lamellibranchiata) pontskog kata u Hrvatskoj =: Cardiidae (Mollusca, Lamellibranchiata) der pontischen Stufe in Kroatien. Zagreb: Jugoslavenska akademija znanosti i umjetnosti, 1990.

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Hylleberg, Jorgen. Lexical approach to Cardiacea: Illustrated and annotated bibliography of living and fossil shells, with emphasis on the families Cardiidae and Lymnocardiidae (Mollusca, Bivalvia). [Phuket, Thailand]: [Phuket Marine Biological Center], 2004.

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Taktakishvili, I. G. Sistematika i filogenii͡a︡ pliot͡s︡enovykh kardiid paratetisa. Tbilisi: "Met͡s︡niereba", 1987.

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An investigation of the common cockle (Cerastoderma edule (L)): Collection practices at the kitchen midden sites of Norsminde and Krabbesholm, Denmark. Oxford: Archaeopress, 2008.

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Evolutionary patterns of cardiid bivalves. 1993.

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Cardiidea. Lulu Press, Inc., 2014.

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Crowley, Paul Robert. Behavior of ⁵⁹Fe in a marine estuarine environment: Uptake and retention by the Pacific basket-cockle, Clinocardium nuttallii. 2000.

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Book chapters on the topic "Cardiidae"

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"Cardiidae." In Seashells of Southern Florida, 288–99. Princeton University Press, 2008. http://dx.doi.org/10.1515/9780691239453-051.

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Neo, Mei Lin. "Conservation of Giant Clams (Bivalvia: Cardiidae)." In Encyclopedia of the World's Biomes, 527–38. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-409548-9.11780-4.

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"Family Cardiidae – Heart Cockles and Giant Clams." In Seashells of Southern Florida, 288–99. Princeton University Press, 2021. http://dx.doi.org/10.2307/j.ctv1zm2v56.52.

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Neo, Mei Lin, Colette C. C. Wabnitz, Richard D. Braley, Gerald A. Heslinga, Cécile Fauvelot, Simon Van Wynsberge, Ser G. E. Andréfouët, et al. "Giant Clams (Bivalvia: Cardiidae: Tridacninae): A Comprehensive Update of Species and their Distribution, Current Threats and Conservation Status." In Oceanography and Marine Biology, 87–387. CRC Press, 2017. http://dx.doi.org/10.1201/b21944-5.

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Conference papers on the topic "Cardiidae"

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Кузина, Н. В., and А. А. Масленников. "Sea-related Finds from Rural Sanctuaries on the Azov Coast of the Crimea." In Hypanis. Труды отдела классической археологии ИА РАН. Crossref, 2019. http://dx.doi.org/10.25681/iaras.2019.978-5-94375-307-7.110-118.

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Культурные напластования общественных сакральных комплексов, открытых на территории Крымского Приазовья включают специфическую группу находок, представленную экофактами и артефактами, связанными с темой моря: подсыпки из раковин моллюсков cardium (Cardiidae) и Veneridae на уровне полов, в заполнении жертвенников вотивы в виде отдельных относительно крупных раковин мидий, устриц или сердцевидок, клешни крабов морская галька, орудия рыболовного промысла (крючки, грузила, костяные иглы для ремонта сетей), фрагменты рыбных блюд. Такого рода предметы, не имея самостоятельного культового значения, попадая в сакральное пространство, наделялись новыми смыслами и включались в систему со сложной иерархией связей. В обрядовой практике сельских святилищ Крымского Приазовья морские экофакты были включены в контекст ритуальных действий, обусловленных устойчивыми среди сельского населения архаическими представлениями о трёхчленной модели мира, где море выступало эквивалентом хтонической, нижней сферы. Морские атрибуты, с одной стороны, выражали идеи, связанные с изобилием, плодовитостью, и в этом смысле принадлежали кругу символов богов, воплощавших плодоносные силы природы. С другой стороны, они маркировали нижнюю космическую зону, сопоставимую с хтоническим миром, применялись в обрядах жертвоприношений, в которых конституировалась взаимосвязь между уровнями мироздания в соответствии с архаической картиной мира. В этом аспекте артефакты и экофакты, связанные с морем, несли идею преобразования, перехода, выступали символами-медиаторами. Layers of mollusk shells on the floors are present in most rural sanctuaries in the Crimean Azov region. Single shells as well as fish bones were found in places used for sacrifices. In the ritual practices of rural sanctuaries marine elements were used in ritual actions in conformity with the ideas of the world model accepted by the rural population. Marine elements symbolized abundance, fecundity, and were associated with fertility gods. At the same time they marked the lower cosmic zone, related to the chthonic world. Their use in ritual ceremonies established connections between the levels of the universe in conformity with the archaic model of the world.
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