Heterotopic Kidney Tissue in the Lung of a Free-living Common Dolphin (Delphinus delphis)

Guardo, Giovanni Di; Marruchella, Giuseppe; Affronte, Marco; Zappulli, Valentina; Benazzi, Cinzia

doi:10.1354/vp.42-2-213

Cited by 4 publications

(5 citation statements)

References 7 publications

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“…Histologically confirmed reports of heterotopic tissue are uncommon in marine mammals, particularly in cetaceans, in which they are limited to thymic tissues in the parathyroid glands of Ganges river dolphins ( Platanista gangetica ) [ 9 ] and a case of kidney tissue in the lung of a common dolphin ( Delphinus delphis ) [ 4 ]. Accessory spleens result from failure of the primordial splenic buds fusing within the dorsal mesogastrium during the early stages of human fetal life or from traumatic splenic rupture [ 19 ].…”

supporting

confidence: 60%

Intrapancreatic accessory spleen in a harbor porpoise (Phocoena phocoena)

Nakagun

Díaz‐Delgado

Groch

et al. 2018

The Journal of Veterinary Medical Science

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The occurrence of accessory spleens in cetacean species is high yet confirmed reports of intrapancreatic accessory spleen, a congenital malformation, remain undescribed. The current study provides the gross, microscopical, histochemical and immunohistochemical features of an intrapancreatic accessory spleen in a harbor porpoise (Phocoena phocoena). Grossly, a 17 × 18 × 9 mm well-demarcated, dark brown to red mass expanded the left pancreatic lobe. Microscopically, this mass consisted of mature splenic tissue interspersed with exocrine pancreatic acini. Intrapancreatic accessory spleens should be considered in the list of differential diagnoses for intrapancreatic nodular lesions in cetaceans.

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supporting

confidence: 60%

Intrapancreatic accessory spleen in a harbor porpoise (Phocoena phocoena)

Nakagun

Díaz‐Delgado

Groch

et al. 2018

The Journal of Veterinary Medical Science

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“…The main injuries sustained were severe, multifocal, cutaneous teeth marks all over the animal's body, diffuse subcutaneous and muscular bruising, and bleeding, especially in the dorsal region of the skull (Fernández-Maldonado, 2016). In the North Adriatic Sea, a female common dolphin that was found stranded alive presented with a renal heterotopia involving the lung parenchyma and contributed to the first description of heterotopic kidney tissue occurrence in the lung of any domestic or wild animal species (Di Guardo, Marruchella, Affronte, Zappulli, & Benazzi, 2005).…”

Section: Health Statusmentioning

confidence: 99%

“…In the North Adriatic Sea, a female common dolphin that was found stranded alive presented with a renal heterotopia involving the lung parenchyma and contributed to the first description of heterotopic kidney tissue occurrence in the lung of any domestic or wild animal species (Di Guardo, Marruchella, Affronte, Zappulli, & Benazzi, 2005).…”

Section: Threatsmentioning

confidence: 99%

The conservation of the endangered Mediterranean common dolphin (Delphinus delphis): Current knowledge and research priorities

Vella

Murphy

Giménez

et al. 2021

Aquatic Conservation

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1. Preservation of endangered species is now recognized as a relevant component of regional and global conservation actions achieved through the maintenance of the remaining populations in a favourable conservation status. The Mediterranean common dolphin (Delphinus delphis) is listed as an Endangered subpopulation in the International Union for Conservation of Nature Red List, with declining numbers in some of the areas where it has been studied for numerous years. Prey depletion, fisheries bycatch, pollution, health risks, and climate change are among the recognized threats that the species is facing in the region.2. The existing national, regional, and international legislation pertinent to Mediterranean countries should aid greater science-policy-management integration and support innovative research and monitoring towards effective conservation. The challenges inherent in studying the pelagic D. delphis should not preclude the use of long-term, year-round, multiplatform surveys, side by side with the latest molecular tools, which aid our understanding of its populations' genetic diversity, resistance to diseases, and resilience in a semi-enclosed fast-changing sea.3. Addressing the multiplicity of problems confronting the species requires collaborative effort at all levels to share and merge resources, data, and expertise more efficiently. In this review, we provide an overview of the current knowledge on the Mediterranean common dolphin, the main threats, and knowledge gaps that are priorities for addressing its conservation, while providing clear recommendations for effectively safeguarding the species and its habitat at both local and regional levels.

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“…Environmental alterations can affect the immune response of cetaceans, making them more susceptible to infectious diseases and associated mortality (Romano et al, 2002). Concerning diseases affecting this subpopulation (both infectious and non-infectious), neoplasms with metastatic potential (Di Guardo et al, 2005;Dıás-Delgado et al, 2012), Erysipelothrix rhusiopathiae infection (Fernańdez-Maldonado, 2016), toxoplasmosis (Sobrino et al, 2007) and intestinal parasites (Quiñones et al, 2013) have already been described for D. delphis Mediterranean subpopulation. There is also evidence that shared habitat and foraging resources between common and stripped dolphins may lead to disease outbreaks, as morbillivirus epizootics are reported for both species since the 1990s (Birkun et al, 1999;Raga et al, 2008).…”

Section: Discussionmentioning

confidence: 99%

First Isolation and Characterization of Streptococcus agalactiae From a Stranded Wild Common Dolphin (Delphinus delphis)

et al. 2022

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Streptococcosis is an infectious bacterial disease of both homeotherms and poikilotherms. Among the Streptococcus species that infect marine animals, Streptococcus agalactiae has the broadest host spectrum, including different aquatic organisms in freshwater and marine environments. The common dolphin (Delphinus delphis) is categorized as Endangered in the Mediterranean Sea. There are few reports of a streptococcal infection of D. delphis, caused by Streptococcus phocae and Streptococcus iniae. Here we report the isolation and identification of S. agalactiae in a stranded, wild male common dolphin that was found dead in September 2020 on the seashore next to the city of Bat-Yam, Israel. The carcass was fresh with a moderate nutritional status and with no apparent fishing gear or other anthropogenic-related signs. A post-mortem examination did not reveal an apparent cause of death, but further laboratory analysis demonstrated a S. agalactiae bacterial presence in urine, lungs and pericardial fluid that was characterized as type Ia-ST7 by whole genome sequencing. Interestingly, this isolate was found to be almost identical to another isolate recently recovered from a wild sandbar shark (Carcharhinus plumbeus) in the same area in Israel, the eastern Mediterranean Sea.

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Heterotopic Kidney Tissue in the Lung of a Free-living Common Dolphin (Delphinus delphis)

Cited by 4 publications

References 7 publications

Intrapancreatic accessory spleen in a harbor porpoise (<i>Phocoena phocoena</i>)

Intrapancreatic accessory spleen in a harbor porpoise (<i>Phocoena phocoena</i>)

The conservation of the endangered Mediterranean common dolphin (Delphinus delphis): Current knowledge and research priorities

First Isolation and Characterization of Streptococcus agalactiae From a Stranded Wild Common Dolphin (Delphinus delphis)

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