First report of the occurrence and different types of conjoined twins in common whitefish Coregonus maraena larvae originating from the Baltic Sea

Nowosad, Joanna; Kucharczyk, Dariusz

doi:10.3354/dao03314

Cited by 15 publications

(7 citation statements)

References 34 publications

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“…Fish farming, especially in recirculated aquaculture systems (RAS), is carried out under strict control of both the physicochemical parameters of water and food quality (e.g., [ 15 , 16 ]). However, in the wild, fish eat food that they find, which may contain contaminants that are harmful not only to the fish themselves, for example, by interfering with reproductive efficiency (e.g., [ 17 ]), but also potentially to humans who consume these fish. This is particularly important because accumulated deposits, including heavy metals, can be actively moved across the body of fish, especially during the development of gonads and gametes before reproduction, and their concentrations may change between different fish organs [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Using Rutilus rutilus (L.) and Perca fluviatilis (L.) as Bioindicators of the Environmental Condition and Human Health: Lake Łańskie, Poland

Łuczyńska

Paszczyk

Luczynski

et al. 2020

IJERPH

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The aim of this study was to determine the mercury content and fatty acids profile in roach (Rutilus rutilus L.) and European perch (Perca fluviatilis L.) from Lake Łańskie (Poland). Mercury content was higher in the muscles than other organs in both species (p < 0.05). Mercury accumulates along the food chain of the lake’s ecosystem. The value of the bioconcentration factor (BCF) indicated that Hg had accumulated in the highest amounts in muscles and in the other organs as follows: muscles > liver > gills > gonads. The metal pollution index (MPI) and target hazard quotient (THQ) were below 1, which means that these fish are safe for consumers. The values of HIS, GSI and FCF indicators show that both species of fish can be good indicators of water quality and food contamination. There were few differences between fatty acid content in the muscles of perch and roach. Contents of fatty acids having an undesirable dietary effect in humans (OFA—hypercholesterolemic fatty acids) were lower compared to hypocholesterolemic fatty acids (DFA, i.e., the desirable ones). In addition, the lipid quality indices AI and TI in the muscles of fish were at 0.40 and 0.22 (perch) and at 0.35 and 0.22 (roach), respectively. On this basis, it can be concluded that the flesh of the fish studied is beneficial from the health point of view.

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Section: Introductionmentioning

confidence: 99%

Using Rutilus rutilus (L.) and Perca fluviatilis (L.) as Bioindicators of the Environmental Condition and Human Health: Lake Łańskie, Poland

Łuczyńska

Paszczyk

Luczynski

et al. 2020

IJERPH

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“…If the malformations on the skeleton seemed the more numerous whatever the period or the temperature, partly due to our method of observation, twin forms ranged from 0% to 18% of the malformations at a given stage and temperature. It is known that this type of malformation is rare (0.5% to 4% in the salmon Keta ( Oncorhynchus keta ) (Yamamoto, Kobayashi, & Kuramoto, ), or less than 0.01% in the whitefish ( Coregonus maraena ) (Nowosad & Kucharczyk, ). In the study of Yamamoto et al () on salmon Keta, a large increase in the temperature (from 8 to 18°C) lead to an increase in twin forms.…”

Section: Discussionmentioning

confidence: 99%

“…Early life stages appeared to be the most prone to malformations. Many authors have observed an increase in malformations due to biotic factors, among which stress on brood stock during vitellogenesis (Alix, Zarski, Chardard, Fontaine, & Schaerlinger, ; Divanach, Papandroulakis, Anastasiadis, Koumoundouros, & Kentouri, ; Haya, ), genetic origin (Divanach et al, ; Paperna, )‚ or gamete quality (Nowosad & Kucharczyk, ; Nowosad, Sikora, & Kucharczyk, ; Samarin et al, ). Malformations, even when they are not directly lethal, contributed to an increased susceptibility to predation or diseases (Boglione, Gisbert, et al, ; Koumoundouros, ; Koumoundouros, Oran, Divanach, Stefanakis, & Kentouri, ).…”

Section: Introductionmentioning

confidence: 99%

What can we learn by studying dead fish fry?

et al. 2019

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This study investigated the influence of temperature (4, 8 and 12°C) on development and survival of brown trout (Salmo trutta) fry. The three aims of this study were: (a) to propose a typology of malformations; (b) to compare malformation types between live and dead fry and (c) to establish relationships between temperature and malformation occurrences. It was found 20 single malformations and 39 combinations of two or more malformations. Comparison between dead and live fry at different development stages (hatching, emergence and first food intake) showed that malformations of yolk sac were predominant at hatching and then decreased, while malformations of skeleton or multiple malformations were higher thereafter. All dead fry, and only 14% of live fry were malformed. Dead fry were mainly characterized by yolk sac malformations and multiple malformations whatever the temperature. Live fry showed a higher rate of skeleton malformations at 12°C, and the different types of malformations were equally represented at two other temperatures (4 and 8°C). To conclude, it is suggested that some malformations (yolk sac at hatching, yolk sac associated with skeleton malformations at emergence and skeleton at first food intake or combinations of malformations at all stages)might be lethal as they were founding dead fry and that temperature influences differently the occurrence of malformations.

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“…However, the spectrum of anomalies can vary from duplication of a single facial or skull bone to complete facial and skull duplication with associated brain abnormalities (Barr Jr., 1982). Diprosopus is not unique to humans but has been reported in a variety of other species including: cat (Sekeles et al, 1985), buffalo calf (Misk & Hifny, 1988; Sharma et al, 2010), calf (Jenkins & Hardy Jr., 1968; Jhamb et al, 2021; Leipold & Dennis, 1972; Saperstein, 1981), foal (Götz, 1991), lamb (Dennis, 1975; Kaçar et al, 2008; Kerr, 2007; Mazzullo et al, 2003), goat (Mukaratirwa & Sayi, 2006), piglet (McManus et al, 1994), chick (Saini et al, 1993), shark (Lamarca et al, 2017; Sans‐Coma et al, 2017), whitefish (Nowosad & Kucharczyk, 2019), and crab (Scholtz et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

A rare case of partial skull and brain duplication in a hatchling Alligator mississippiensis

Pritz

Elsey

Thompson

et al. 2022

The Anatomical Record

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Errors in development occur in all vertebrates. When severe, these anomalies are lethal and frequently escape attention. In rare cases, animals with profound malformations are born and can provide a glimpse into structures and their respective function that would otherwise go unnoticed. A rare abnormality in a hatchling Alligator mississippiensis is described in which duplication of the skull, face, and brain was incomplete. The rostral skull, face, and associated forebrain, including the olfactory apparatus, were duplicated. However, the caudal skull and brainstem were not. These observations were made with advanced imaging using both computed tomography and magnetic resonance coupled with gross brain dissections. These abnormal features emphasize the complex and intertwined relationship between the development of the brain, face, and skull which are influenced by certain signaling molecules, possible gene mutation(s), and potential environmental factors.

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First report of the occurrence and different types of conjoined twins in common whitefish Coregonus maraena larvae originating from the Baltic Sea

Cited by 15 publications

References 34 publications

Using Rutilus rutilus (L.) and Perca fluviatilis (L.) as Bioindicators of the Environmental Condition and Human Health: Lake Łańskie, Poland

Using Rutilus rutilus (L.) and Perca fluviatilis (L.) as Bioindicators of the Environmental Condition and Human Health: Lake Łańskie, Poland

What can we learn by studying dead fish fry?

A rare case of partial skull and brain duplication in a hatchling Alligator mississippiensis

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