Pinnipedia

The bacterial community composition and structure of water from an established teleost fish system was examined before, during and after a major water change to explore the impact of such a water-change disturbance on the stability of the aquarium water microbiome. The diversity and evenness of the bacterial community significantly increased following the 90% water replacement. While the change in bacterial community structure was significant, it was slight, and was also weakly correlated with changes in physicochemical parameters. Interestingly there was a significant shift in the correlative network relationships between operational taxonomic units from before to after the water replacement. We suggest this shift in network structure is due to the turnover of many taxa during the course of water replacement. These observations will inform future studies into manipulation of the microbiome by changing system environmental parameter values to optimize resident animal health.

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“…We believe the microbiome of aquarium systems housing other aquatic mammals and fish also influences health and thus welfare. (Van Bonn, 2015). …”

Section: Introductionmentioning

confidence: 99%

Aquarium microbiome response to ninety-percent system water change: Clues to microbiome management

et al. 2015

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“…In phocids, the foreflippers contribute minimally to locomotion, differing significantly from the hindflippers. In water, their aquatic propulsion is derived from lateral oscillation of their splayed hindflippers with elongated phalanges, conversely the foreflippers are tucked close to the body to reduce drag and increase stroke efficiency, while also used for steering 15 16. On land undulation of the thoracolumbar musculature is the primary means of locomotion, while the foreflipper aids with manoeuvring body position 16.…”

Section: Discussionmentioning

confidence: 99%

“…Overall, the loss of the forelimb had minimal impact on the animal’s behaviour or mobility in or out of the water, providing evidence that phocids with amputated or non‐functional forelimbs may remain acceptable candidates for return to the wild in rehabilitation settings. Conversely, hindflipper amputations may significantly impair locomotion in the water and would reduce the animal’s ability to thrive in the wild 15…”

Section: Discussionmentioning

confidence: 99%

Giant cell sarcoma managed with forelimb amputation in a harbour seal (Phoca vitulina geronimensis)

Martony

Leger

Erlacher-Reid

et al. 2019

Vet Record Case Reports

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A 22-year-old harbour seal (Phoca vitulina geronimensis) presented with a subcutaneous mass on the right dorsal carpus. The mass measured 5 cm by 2 cm and was firmly attached to the underlying tissues. Cytology from fine-needle aspiration was consistent with a soft tissue sarcoma. Surgical resection was attempted, however complete excision was prohibited by extensive local invasion. Histopathology results confirmed a moderately cellular, infiltrative, non-encapsulated giant cell sarcoma. Subsequent surgical amputation of the forelimb was performed successfully, with the animal making a full recovery. No radiographic evidence of reoccurrence was identified three years following the surgical procedure. This is the first described case of forelimb amputation in a pinniped. When complete tumour resection is unattainable, forelimb amputation may serve as an alternative or adjunct to medical management of neoplasia in phocids.

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“…14 Elephant seals rapidly produce granulation tissue for secondary healing of any gaps that may occur in the suture lines. 16 Tension-free mucogingival flaps and tension-releasing stay sutures help to retain first intention healing. The heavy buccal mucosa and lips may result in tension on the incision line, especially at the mandibular sites.…”

Section: Discussionmentioning

confidence: 99%

Treatment of Canine Tooth Fractures in the Northern Elephant Seal (Mirounga angustirostris): Three Cases

et al. 2019

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The Marine Mammal Center (TMMC) in Sausalito, California, rescues, rehabilitates, and releases hundreds of stranded northern elephant seals (Mirounga angustirostris) each year. Common causes for stranding include maternal separation, malnutrition, and trauma. Causes of trauma include shark bites, conspecific interactions, and anthropogenic factors. Several cases of fractured teeth, secondary to presumed trauma, are presented to the center each year. This case series describes surgical approach and treatment of 3 young northern elephant seals that were admitted to TMMC for rehabilitation with tooth fractures with pulp exposure of maxillary or mandibular canine teeth. All 3 seals were successfully released into their natural environment.

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Pinnipedia

Cited by 6 publications

References 53 publications

Aquarium microbiome response to ninety-percent system water change: Clues to microbiome management

Aquarium microbiome response to ninety-percent system water change: Clues to microbiome management

Giant cell sarcoma managed with forelimb amputation in a harbour seal (Phoca vitulina geronimensis)

Treatment of Canine Tooth Fractures in the Northern Elephant Seal (Mirounga angustirostris): Three Cases

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