Effect of PIT tagging on hematology and plasma composition of juvenile pikeperch (Sander lucioperca (L.))

Abstract

The aim of the study was to determine the impact two passive integrated transponder (PIT) tagging methods had on the hematological and blood plasma biochemical indicators of juvenile pikeperch. The fish were tagged intraperitoneally (group P) or intramuscularly (group M). Blood samples were drawn prior to tagging (control group-group C), and in groups P and M 3 h, 1 day, 3 days, 7 days, and 14 days after PIT implantation. The implantation wounds healed more slowly in the fish from group M, assessed on 1 day, 3 days, and 7 days after tagging, than did those in group P. However, after 14 days, the wounds in the fish from both groups were fully healed. The tagging method was not noted to have had a significant impact on the hematological indicators. However, 3 h after tagging the pikeperch with PIT, a significant increase was noted in plasma glucose levels in both groups P and M, but they stabilized in samples collected later (1-14 days). Globulin levels in group M after 1 day and 3 days were significantly lower than those in groups P and C, which could have been evidence of inflammation. The globulin levels in group M also stabilized after 7 days. Despite certain significant differences in the dynamics of changes in some of the biochemical plasma parameters, it appears that the two PIT implantation methods are potentially safe for pikeperch and can be used, for example, in aquaculture facilities for tagging this species.

Physical and chemical tagging methods for the sea urchin Paracentrotus lividus (Echinodermata: Echinoidea)

“…Regarding PIT-tagging, the associated retention rates are generally high in a wide range of aquatic animals, particularly in fish (Zakęś et al 2019) but also in sea turtles (Omeyer et al 2019), cephalopods (Estefanell et al 2011), crustaceans (Sato et al 2013), abalones (Searcy-Bernal et al 2016) and sea cucumbers (Gianasi et al 2015), although the retention is variable between species (Gianasi et al 2015, Rodríguez-Barreras and Sabat 2015, Rodríguez-Barreras and Wangensteen 2016, Rodríguez-Barreras et al 2017, Omeyer et al 2019. Similarly to the present study, Tourón et al (2022) obtained retention rates of 83% with 8 mm PIT-tags inserted in P. lividus with an average test diameter of 20 mm.…”

“…It demands the collection of the animals, their sacrifice and the facilities to perform individual identification under a microscope. Internal tags may also involve potential issues when sea urchins are to be used for human consumption, because of the risk of accidental tag ingestion (Gheorghiu et al 2010, Zakęś et al 2019.…”

“…High tag loss (83%) in sea urchins was reported to occur in the first day (Sonnenholzner et al 2011) In future studies, not only the healing of the wound should be monitored: a topical substance that accelerates the healing process, such as iodine-based solutions, may also be tested in sea urchins, as suggested by Gibbons and Andrews (2004). The tagging material should also be disinfected (Zakęś et al 2019). Nonetheless, the period for complete healing of the lesion may vary among species and individual size, as is described for fish species (Navarro et al 2006).…”

Effect of Biologger Attachment on the Stress and Health State of the Spotted Sea Bass Lateolabrax maculatus

“…In addition, the stress caused by the biologger attachment was most prominent in the early days postattachment, specifically on days 1 and 7, after which the stress level decreased, and the fish entered an adaptation phase. It is important to note that not only the weight of the biologger but also factors such as attachment location, attachment method, fish capture, and anesthesia during the attachment can induce stress in fish and cause physiological changes in the body [17,18,39,[41][42][43]. Therefore, the impact of these factors needs to be considered and further investigated in the future.…”

“…Blood biochemistry factors are widely recognized as indicators for evaluating and understanding the effects of stress, including those caused by the external or internal attachment of biologgers, on fish physiology and health [13,[16][17][18][19]. In recent years, the development and utilization of biomarker genes to assess the health status of organisms has garnered significant interest.…”