The parasitic travel of Margaritifera margaritifera in Atlantic salmon gills: from glochidium to post-larva

Castrillo, Pedro A; Varela‐Dopico, Catuxa; Bermúdez, Roberto; Quiroga, M.I.; Ondina, Paz

doi:10.1016/j.aqrep.2022.101340

Cited by 4 publications

(8 citation statements)

References 56 publications

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“…Studies on the structure of glochidia using light microscopy are very common [26,35]. With the help of scanning electron microscopy, new tiny details of the structure of glochidia were obtained [15], and these data have become useful for the interpretation of phylogenetic relationships between freshwater mollusk taxa [13,14,17].…”

Section: Discussionmentioning

confidence: 99%

“…Glochidia development from unfertilized eggs to mature snapping larvae with protruding larval threads and formed hooks includes the following intermediate stages: 4-cell stage, morula with two macromeres, blastula/gastrula stages, trochophore-like stage, early shell formation («patch» stage), late shell formation («bearded» stage), and closed glochidium («D» stage) [45]. Secretion of the shell gland cells in the dorsally located ectodermal region leads to the formation of a thin, cap-like shell [35]. Later, the shell gradually develops, becomes thicker and bivalve.…”

Section: Discussionmentioning

confidence: 99%

“…For example, the bivalve mollusk Anodonta arcaeformis (Heude, 1877) (Unionidae, Anodontinae) has two types of ciliated cells in the larval mantle [32]. Interestingly, the cells of the rst type have a bundle of protruding cilia, that presumably perceive chemical stimuli, in three isolated and highly specialized mantle cells [35]. The function of another type of cilia located on the posterior edge near the lateral pits remains unknown.…”

Section: Discussionmentioning

confidence: 99%

“…It was shown that their metamorphosis encompasses a few distinct stages, with some variations between investigated taxa. The rst involves degeneration of the single larval adductor muscle and formation of the characteristic mushroom body [35][36][37]. The nal stage involves the formation of the major anatomical structures and organ systems in juveniles [35,38,39].…”

Section: Introductionmentioning

confidence: 99%

“…The rst involves degeneration of the single larval adductor muscle and formation of the characteristic mushroom body [35][36][37]. The nal stage involves the formation of the major anatomical structures and organ systems in juveniles [35,38,39].…”

Section: Introductionmentioning

confidence: 99%

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Morphological description of the glochidia of Buldowskia suifunica (Bivalvia: Unionidae): External and internal structures and organ systems

Sayenko

Nikischenko

Dyachuk

2023

Preprint

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Freshwater mussels of the genus Buldowskia (Bivalvia, Unionidae) are distributed from the Amur River basin in Russia and China southward to the Korean Peninsula and some Japanese islands. This work is an integrative morphological study of Buldowskia suifunica glochidia from locations in the Primorsky Territory, the Russian Far East. Here, we first detected that glochidia taken from the same gill have asynchronous development. We characterized the external and internal morphology of the shell. Here, we described the morphology of sensory system that consists of hair cells as well as nonhair cells with in three stages of larval development (immature, intermediate and mature glochidia). We detected muscle system is composed of massive adductor and minor muscle bundles. The FMRFamidergic nervous system turned out to be a complex system includes basalcells (neurons), their neurites and anterior neurons. FMRFamide and tubulin was found in all neurons. For the 5-HT nervous system, we detected only four 5-HT-lir neurons in glochidia. We concluded that B. suifunica glochidial nervous system differ drastically from those of the larval comparable systems of marine and freshwater mollusks. However, the general outline of the structure of the sensory, muscular and nervous systems is still preserved within the taxon bivalves.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphological description of the glochidia of Buldowskia suifunica (Bivalvia: Unionidae): External and internal structures and organ systems

Sayenko

Nikischenko

Dyachuk

2023

Preprint

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Captive breeding of European freshwater mussels as a conservation tool: A review

Geist,

Thielen,

Lavictoire

et al. 2023

Aquatic Conservation

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Freshwater mussels are declining throughout their range. Their important ecological functions along with insufficient levels of natural recruitment have prompted captive breeding for population augmentation and questions about the usefulness and applicability of such measures. This article reviews the current state of captive breeding and rearing programmes for freshwater mussels in Europe. It considers the various species, strategies, and techniques of propagation, as well as the different levels of effort required according to rearing method, highlighting the key factors of success. Within the last 30 years, 46 breeding activities in 16 European countries have been reported, mainly of Margaritifera margaritifera and Unio crassus. Some facilities propagate species that are in a very critical situation, such as Pseudunio auricularius, Unio mancus, and Unio ravoisieri, or multiple species concurrently. In some streams, the number of released captive‐bred mussels already exceeds the size of the remaining natural population. Rearing efforts range from highly intensive laboratory incubation to lower intensity methods using in‐river mussel cages or silos. Most breeding efforts are funded by national and EU LIFE(+) grants, are well documented, and consider the genetic integrity of the propagated mussels. Limited long‐term funding perspectives, the availability of experienced staff, water quality, and feeding/survival during early life stages are seen as the most important challenges. Successful captive breeding programmes need to be combined with restoration of the habitats into which the mussels are released. This work will benefit from an evidence‐based approach, knowledge exchange among facilities, and an overall breeding strategy comprising multiple countries and conservation units.

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Morphological description of the glochidia of Buldowskia suifunica (Bivalvia: Unionidae)

Sayenko,

Nikischenko,

Dyachuk

2023

Sci Rep

View full text Add to dashboard Cite

Freshwater mussels of the genus Buldowskia (Bivalvia, Unionidae) are distributed from the Amur River basin in Russia and China southward to the Korean Peninsula and some Japanese islands. This work is an integrative morphological study of Buldowskia suifunica glochidia from locations in the Primorsky Territory, the Russian Far East. Glochidia of B. suifunica, taken from the same gill have asynchronous development. The external and internal morphology of its shell has been characterized. The morphology of its sensory system, within three stages of larval development (immature, intermediate and mature glochidia), consists of hair cells as well as nonhair cells. Their muscle system is composed of massive adductor and minor muscle bundles. The FMRFamid-ergic nervous system turned out to be a complex system includes basal cells (neurons), their neurites and anterior neurons. FMRFamide and tubulin was found in all neurons. Glochidia of B. suifunica have only four 5-HT-lir neurons. We concluded that B. suifunica glochidial nervous system differs from those of the larval systems of planktotrophic marine mollusks.

show abstract

The parasitic travel of Margaritifera margaritifera in Atlantic salmon gills: from glochidium to post-larva

Cited by 4 publications

References 56 publications

Morphological description of the glochidia of Buldowskia suifunica (Bivalvia: Unionidae): External and internal structures and organ systems

Morphological description of the glochidia of Buldowskia suifunica (Bivalvia: Unionidae): External and internal structures and organ systems

Captive breeding of European freshwater mussels as a conservation tool: A review

Morphological description of the glochidia of Buldowskia suifunica (Bivalvia: Unionidae)

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