Development and Larval Morphology of the Spiny Scallop,<i>Chlamys hastata</i>

Hodgson, C.A.; Burke, Robert D.

doi:10.2307/1541956

Cited by 46 publications

(22 citation statements)

References 26 publications

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“…; Anornia ephippium based on A. trigonopsis (Popham 1979); Ostrea edulis (Popham 1979;Sousa & Oliveira 1994;Sousa et al 1995); Crassostrea virginica (Eckelbarger & Davis 1996); Pecten maximus (Dorange & Le Pennec 1989); Chlamys varia based on C. hastutu (C.A. Hodgson & Burke 1988); Spondylus sinensis based on S. nicoharicus ; Limaria hians based on L. fragilis ; Atrina pectinata based on A. vexillum ; Neotrigonia bednalli (Healy 1989); Neotrigonia margaritacea (Healy 1996b); Psilunio littoralis based on Velesunio ambiguus (Healy 1989); Cardita calyculata based on Cardita muricata (Healy 199Sb); Astarte castanea coded based on crassatellids2 Eucrassatella cumingii, E. kingicola, and Talabrica aurora (Healy 1995b); Galeomma turtoni based on Divariscintilla yoyo, D. troglodytes, and Cintilla sp.…”

Section: Sperm (Characters 154-169)mentioning

confidence: 99%

“…Detailed descriptions of pediveligers are those of Ostrea edulis (Yonge 1926;Cole 1938), Crussostrea virginica (Galtsoff 1964), Mytilus edulis (Bayne 1971), Chlarnys hastatu (C.A. Hodgson & Burke 1988), and Codakia orbiculuris (Gros et al 1997). For a revision on the subject and citations for the species here coded, see Carriker ( 1 990 (Cragg & Not1 1977;Carrikcr 1990;Cragg 1996).…”

Section: In Distinct Hands; ( I )mentioning

confidence: 99%

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On bivalve phylogeny: a high‐level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data

Giribet

Wheeler

2002

Invertebrate Biology

274

213

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Abstract. Bivalve classification has suffered in the past from the crossed-purpose discussions among paleontologists and neontologists, and many have based their proposals on single character systems. More recently, molecular biologists have investigated bivalve relationships by using only gene sequence data, ignoring paleontological and neontological data. In the present study we have compiled morphological and anatomical data with mostly new molecular evidence to provide a more stable and robust phylogenetic estimate for bivalve molluscs. The data here compiled consist of a morphological data set of 183 characters, and a molecular data set from 3 loci: 2 nuclear ribosomal genes ( 1 8s rRNA and 28s rRNA), and 1 mitochondria1 coding gene (cytochrome c oxidase subunit I), totaling -3 Kb of sequence data for 76 rnollu bivalves and 14 outgroup taxa). The data have been analyzed separately and in combination by using the direct optimization method of Wheeler (1 996), and they have been evaluated under 1 2 analytical schemes. The combined analysis supports the monophyly of bivalves, paraphyly of protobranchiate bivalves, and monophyly of Autolamellibranchiata, Pteriomorphia, Heteroconchia, Palaeoheterodonta, and Heterodonta s.I., which includes the monophyletic taxon Anomalodesmata. These analyses strongly support the conclusion that Anomalodesmata should not receive a class status, and that the heterodont orders Myoida and Veneroida are not monophyletic. Among the most stable results of the analysis are the monophyly of Palaeoheterodonta, grouping the extant trigoniids with the freshwater unionids, and the sister-group relationship of the heterodont families Astartidae and Carditidae, which together constitute the sister taxon to the remaining heterodont bivalves. Internal relationships of the main bivalve groups are discussed on the basis of node support and clade stability.Additional key words: Moll~sca, Bivalvia, Palaeoheterodonta, Heteroconchia, Heterodonta, 18s rRNA, 28s rRNA, cytochrome c oxidase I, morphology, direct optimization, scnsitivity analysis Bivalve molluscs are characterized by a laterally compressed body with an external bivalved shell that is hinged dorsally. The valves are connected by a partially calcified elastic ligament and are held together by 1 or 2 adductor muscles. There is no buccal or radular apparatus, and the mantle lobes are either joined or free ventrally. The spacious mantle cavity extends upwards on each side of the visceral mass and contains a pair of ctenidia suspended laterally. The ctenidia may be enlarged, lamellate and plicate. The mouth and anus are located at opposite ends of the body and the gut is typically convoluted. A pair of a Author for correspondence. E-mail: ggiribet @ oeb.harvard.edu ciliated labial palps connect the ctenidia to the mouth, and direct food particles into it. The extensible foot is either elongated or laterally compressed. These modifications from the plesiomorphic molluscan condition have made it difficult to establish a phylogenetic scheme of th...

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Section: Sperm (Characters 154-169)mentioning

confidence: 99%

Section: In Distinct Hands; ( I )mentioning

confidence: 99%

On bivalve phylogeny: a high‐level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data

Giribet

Wheeler

2002

Invertebrate Biology

274

213

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“…Nutritionally superior diets provide premetamorphic larvae with sufficient stored energy to survive the second intense anatomical change at metamorphosis. The initiation of metamorphosis results in disintegration of the velum, which limits locomotion and inhibits feeding (Hodgson and Burke 1988).…”

Section: Introductionmentioning

confidence: 99%

Biochemical and energy changes during embryogenesis in the rock scallopCrassadoma gigantea

1990

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Abstract. The biochemical composition of eggs spawned from rock scallops Crassadoma gigantea (Gray) collected from Clayoquot Sound, Vancouver Island (British Columbia, Canada) in the winter of 1987 and the summer of 1988, differed significantly only in lipid and soluble-ash contents. Major macronutrients were catabolized simultaneously and linearly with time of embryogenesis. Total egg energy expended during development was 11.8 kJ g-1 derived 46.7, 9.8 and 43.5%, from lipid, carbohydrate, and protein, respectively. Glucose in the egg was the dominant source of carbohydrate energy. Deposition of shell was linear with time of embryogenesis and the formation of 44.8% dry wt of shell in the early larval stage, referred to as the D-larva, consumed 64.4% of the total energy expended. Energy required for shell formation was 17.55 kJ g-1. The RNA:DNA ratio declined exponentially from 18.6 in the egg to 2.21 in the D-larva, which was consistent with that of adult bivalves. Many changes in fatty acid composition were linear with time of embryogenesis, and the percentage of n3-and n6-higher unsaturated fatty acids to total polyethylenic acids exhibited significant declining and increasing trends, respectively. The linear rate of catabolism of eicosapentaenoic acid, 20:5n3, and the constant level of docosahexaenoic acid, 22:6n3, illustrated an energy and a structural role, respectively, for these dominant acids in the embryonic development of the rock scallop.

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“…To improve fixation, juveniles were relaxed in an approximate 1:2 solution of 10% magnesium sulfate or magnesium chloride and water (modified from Hodgson and Burke 1988).…”

Section: Light and Electron Microscopymentioning

confidence: 99%

Histological and ultrastructural studies of larval and juvenile Lampsilis (Bivalvia) from the Upper Mississippi River

Lasee

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Development and Larval Morphology of the Spiny Scallop,Chlamys hastata

Cited by 46 publications

References 26 publications

On bivalve phylogeny: a high‐level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data

On bivalve phylogeny: a high‐level analysis of the Bivalvia (Mollusca) based on combined morphology and DNA sequence data

Biochemical and energy changes during embryogenesis in the rock scallopCrassadoma gigantea

Histological and ultrastructural studies of larval and juvenile Lampsilis (Bivalvia) from the Upper Mississippi River

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