The biology and functional morphology of Macoma biota (Bivalvia: Tellinidae: Macominae)

Piffer, Pedro Ribeiro; Arruda, Eliane Pintor de; Passos, Flávio Dias

doi:10.1590/s1984-46702011000300006

Cited by 7 publications

(5 citation statements)

References 13 publications

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“…However, in P. persica, whereas the incurrent siphonal aperture is composed of six lobes, the excurrent siphonal aperture has six well-developed digitiform tentacles. This feature was also observed in Macoma biota (Piffer et al, 2011;personal observation). The excurrent tentacles in M. biota is cylindrical and slightly thicker than P. persica.…”

Section: Nervous Systemsupporting

confidence: 69%

Anatomy of Phyllodina persica (Bivalvia: Tellinidae), and its first occurrence in southeastern Brazilian waters

Marques¹,

Simone²

2013

Pap. Avulsos Zool. (São Paulo)

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Section: Nervous Systemsupporting

confidence: 69%

Anatomy of Phyllodina persica (Bivalvia: Tellinidae), and its first occurrence in southeastern Brazilian waters

Marques¹,

Simone²

2013

Pap. Avulsos Zool. (São Paulo)

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“…In infaunal and semiinfaunal bivalves, IFT are common on the siphons as sensory and protective structures distributed close to their apertures (Yonge, ). A great diversity in shape and number of siphonal tentacles was described for infaunal bivalves from the families Veneridae, Donacidae, and Tellinidae, which have multiple branched tentacles on the incurrent siphon (Fishelson, ; Narchi, ; Piffer, de Arruda, & Passos, ; Sartori & Domaneschi, ; Sartori, Printrakoon, Mikkelsen, & Bieler, ; Vitonis, Zaniratto, Machado, & Passos, ). Despite the absence of a siphon, a similar condition is present in P. colymbus and P. imbricata , both species have well‐developed, branched tentacles restricted to the ventral, incurrent region.…”

Section: Discussionmentioning

confidence: 99%

Form and function of tentacles in pteriomorphian bivalves

Audino

Marian

2019

Journal of Morphology

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Tentacles are remarkable anatomical structures in invertebrates for their diversity of form and function. In bivalves, tentacular organs are commonly associated with protective, secretory, and sensory roles. However, anatomical details are available for only a few species, rendering the diversity and evolution of bivalve tentacles still obscure. In Pteriomorphia, a clade including oysters, scallops, pearl oysters, and relatives, tentacles are abundant and diverse. We investigated tentacle anatomy in the group to understand variation, infer functions, and investigate patterns in tentacle diversity. Six species from four pteriomorphian families (Ostreidae, Pinnidae, Pteriidae, and Spondylidae) were collected and thoroughly investigated with integrative microscopy techniques, including histology, scanning electron microscopy, and confocal microscopy. Tentacles can be classified as middle fold tentacles (MFT) and inner fold tentacles (IFT) according to their position with respect to the folds of the mantle margin. While MFT morphology indicates intense secretion of mucosubstances, no evidence for secretory activity was found for IFT. However, both tentacle types have appropriate ciliary distribution and length to promote mucus transportation for cleaning and lubrication. Protective and sensory functions are discussed based on different lines of evidence, including secretion, cilia distribution, musculature, and innervation. Our results support the homology of MFT and IFT only for Pterioidea and Ostreoidea, considering their morphology, the presence of ciliated receptors at the tips, and branched innervation pattern. This is in accordance with recent phylogenetic hypotheses that support the close relationship between these superfamilies. In contrast, major structural differences indicate that MFT and IFT are probably not homologous across all pteriomorphians. By applying integrative microscopy, we were able to reveal anatomical elements that are essential for the understanding of homology and function when dealing with such superficially similar structures.

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“…clams and mussels. The Macoma species are widespread and abundant in sediment of shallow waters throughout the Chesapeake Bay and its tributaries, acting as both suspension feeders and deposit feeders [2,15]. Guekensia demissa , the positive mussel specimen, is a suspension feeder in the intertidal zone in Chesapeake Bay and its tributaries [16].…”

Section: Discussionmentioning

confidence: 99%

Influenza A Virus Detected in Native Bivalves in Waterfowl Habitat of the Delmarva Peninsula, USA

Densmore

Iwanowicz

McLaughlin³

et al. 2019

Microorganisms

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We evaluated the prevalence of influenza A virus (IAV) in different species of bivalves inhabiting natural water bodies in waterfowl habitat along the Delmarva Peninsula and Chesapeake Bay in eastern Maryland. Bivalve tissue from clam and mussel specimens (Macoma balthica, Macoma phenax, Mulinia sp., Rangia cuneata, Mya arenaria, Guekensia demissa, and an undetermined mussel species) from five collection sites was analyzed for the presence of type A influenza virus by qPCR targeting the matrix gene. Of the 300 tissue samples analyzed, 13 samples (4.3%) tested positive for presence of influenza virus A matrix gene. To our knowledge, this is the first report of detection of IAV in the tissue of any bivalve mollusk from a natural water body.

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The biology and functional morphology of Macoma biota (Bivalvia: Tellinidae: Macominae)

Cited by 7 publications

References 13 publications

Anatomy of Phyllodina persica (Bivalvia: Tellinidae), and its first occurrence in southeastern Brazilian waters

Anatomy of Phyllodina persica (Bivalvia: Tellinidae), and its first occurrence in southeastern Brazilian waters

Form and function of tentacles in pteriomorphian bivalves

Influenza A Virus Detected in Native Bivalves in Waterfowl Habitat of the Delmarva Peninsula, USA

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