Foregut morphology and ontogeny of the mud crab Dyspanopeus sayi (Smith, 1869) (Decapoda, Brachyura, Panopeidae)

Foregut morphology and ontogeny of the mud crab Dyspanopeus sayi (Smith, 1869) (Decapoda, Brachyura, Panopeidae)

The morphology of the foregut of the Say's mud crab Dyspanopeus sayi was described in adults and larvae. The ossicle system was illustrated based on a staining method with Alizarin-Red. The gastric teeth and cardio-pyloric valve were dissected and examined using optical and scanning electron mi...

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Veröffentlicht in:Ventricular Restraint Improves Outcomes in HF Patients with CRT. - 2011. - Amsterdam [u.a.]
1. Verfasser: Castejón, Diego (VerfasserIn)
Weitere Verfasser: Ribes, Enric (BerichterstatterIn), Durfort, Mercè (BerichterstatterIn), Rotllant, Guiomar (BerichterstatterIn), Guerao, Guillermo (BerichterstatterIn)
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2015transfer abstract
Zugriff auf das übergeordnete Werk:Ventricular Restraint Improves Outcomes in HF Patients with CRT
Schlagworte:Foregut ossicles Alizarin Red Brachyura Ontogeny Dyspanopeus sayi
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520 |a The morphology of the foregut of the Say's mud crab Dyspanopeus sayi was described in adults and larvae. The ossicle system was illustrated based on a staining method with Alizarin-Red. The gastric teeth and cardio-pyloric valve were dissected and examined using optical and scanning electron microscopy. In the adults, the morphology of ossicles and gastric teeth of D. sayi is very similar to the related species Rhithropanopeus harrisii. The foregut of first zoea (ZI) presented a functional cardio-pyloric valve while the filter press was lacking. The filter press was observed in the pyloric chamber from ZII. The most significant changes in morphology take place after metamorphosis from ZIV to megalopa, including the occurrence of the gastric mill. The organization and morphology of many megalopal foregut ossicles are recognizable in the adult phase, although the morphology of the gastric teeth differs from the morphology of adults. A correlation of gastric mill structures with food preferences and their contribution to the phylogeny are briefly discussed. 
520 |a The morphology of the foregut of the Say's mud crab Dyspanopeus sayi was described in adults and larvae. The ossicle system was illustrated based on a staining method with Alizarin-Red. The gastric teeth and cardio-pyloric valve were dissected and examined using optical and scanning electron microscopy. In the adults, the morphology of ossicles and gastric teeth of D. sayi is very similar to the related species Rhithropanopeus harrisii. The foregut of first zoea (ZI) presented a functional cardio-pyloric valve while the filter press was lacking. The filter press was observed in the pyloric chamber from ZII. The most significant changes in morphology take place after metamorphosis from ZIV to megalopa, including the occurrence of the gastric mill. The organization and morphology of many megalopal foregut ossicles are recognizable in the adult phase, although the morphology of the gastric teeth differs from the morphology of adults. A correlation of gastric mill structures with food preferences and their contribution to the phylogeny are briefly discussed. 
650 7 |a Foregut ossicles  |2 Elsevier 
650 7 |a Alizarin Red  |2 Elsevier 
650 7 |a Brachyura  |2 Elsevier 
650 7 |a Ontogeny  |2 Elsevier 
650 7 |a Dyspanopeus sayi  |2 Elsevier 
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700 1 |a Durfort, Mercè  |4 oth 
700 1 |a Rotllant, Guiomar  |4 oth 
700 1 |a Guerao, Guillermo  |4 oth 
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