Publication:
Effects of implanted dummy acoustic transmitters on juvenile Atlantic salmon

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dc.contributor.authorLacroix, G L
dc.contributor.authorKnox, D
dc.contributor.authorMcCurdy, P
dc.date2023-09-23T06:54:06.000
dc.date.accessioned2024-04-26T17:18:26Z
dc.date.available2024-04-26T17:18:26Z
dc.date.issued2004-01-01
dc.description.abstractThe effects of intraperitoneally implanted dummy acoustic transmitters on juvenile Atlantic salmon Salmo salar of comparable size to wild presmolts and strolls were examined in two laboratory experiments. In the first experiment, different-sized tags (24, 28, and 32 mm x 8-mm diameter) that mimicked acoustic transmitters suitable for long-term studies were assessed. There was 60% mortality (3 of 5 fish) with the 32-mm implant early in the 316-d study and 20% mortality (1 of 5 fish) with the 28-mm implant. All fish surviving with 28- and 32-mm implants eventually expelled their tags, compared with only 20% of fish (1 of 5) with the 24-mm implant. Tag expulsion was not a cause of death. After implantation, tags were first encapsulated in a thick membrane and then expelled between 142 and 217 d after surgery, exiting at a site where pressure of the tag on the abdominal wall was greatest. Growth of tagged fish was initially delayed and lagged that of control and sham-tagged fish, but survivors from the tagged groups eventually caught up and grew at the same rate as the other two groups. In the second experiment, 28-mm implants, representing 8.5% of body weight, had a negative effect on the fish 1 and 3 d after surgery by slightly reducing critical swimming speed compared with that of control fish. However, the swimming performance of tagged fish began to recover after 7 d. Surgical implantation of acoustic transmitters can meet the requirements for tagging and tracking small Atlantic salmon over a period of months. However, we recommend a transmitter length of 16% or less of fish length and a transmitter weight under 8% of fish weight for juvenile Atlantic salmon of about 14-15 cm and 35-45 g in order to maximize the chances of success in telemetry studies. [References: 21]
dc.description.pages211-220
dc.identifier.urihttps://hdl.handle.net/20.500.14394/26882
dc.relation.ispartofTransactions of the American Fisheries Society
dc.source.issue1
dc.source.issue133
dc.source.statuspublished
dc.subjectacoustic
dc.subjectATLANTIC
dc.subjectAtlantic salmon
dc.subjectBODY
dc.subjectBody weight
dc.subjectBODY-WEIGHT
dc.subjectcontrol
dc.subjectexpulsion
dc.subjectFish
dc.subjectfish length
dc.subjectgrowth
dc.subjectimplantation
dc.subjectjuvenile
dc.subjectJUVENILE ATLANTIC SALMON
dc.subjectLaboratories
dc.subjectlaboratory
dc.subjectlength
dc.subjectmembrane
dc.subjectmortalities
dc.subjectmortality
dc.subjectperformance
dc.subjectpressure
dc.subjectSALAR
dc.subjectSalmo
dc.subjectSalmo salar
dc.subjectsalmon
dc.subjectsize
dc.subjectspeed
dc.subjectSUCCESS
dc.subjectsurgery
dc.subjectswimming
dc.subjectswimming performance
dc.subjectSWIMMING SPEED
dc.subjecttag
dc.subjecttagging
dc.subjecttags
dc.subjecttelemetry
dc.subjectTracking
dc.subjecttransmitters
dc.subjectweight
dc.subjectwild
dc.titleEffects of implanted dummy acoustic transmitters on juvenile Atlantic salmon
dc.typearticle
dc.typearticle
digcom.contributor.authorLacroix, G L
digcom.contributor.authorKnox, D
digcom.contributor.authorMcCurdy, P
digcom.identifierfishpassage_journal_articles/1750
digcom.identifier.contextkey2752925
digcom.identifier.submissionpathfishpassage_journal_articles/1750
dspace.entity.typePublication
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