Comparing tagging strategies: Effects of tags on retention rate, mortality rate and growth in hatchery-reared juvenile meagre, &lt;em&gt;Argyrosomus regius&lt;/em&gt; (Pisces: Sciaenidae)

Gil, María del Mar; Palmer, Miquel; Grau, Amàlia; Massutí, Enrique; Pastor, Elena

doi:10.3989/scimar.04583.26b

Cited by 8 publications

(4 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results indicate that the external tag can be used with juvenile L. alexandri, and that the observed mortality may just be due to an effect of the conditions of cultivation. Gil et al (2017) compared the survival rate of juvenile Argyrosomusregius (83.7 ± 24.5 g and 19.5 ± 1.9 cm) and found lower survivorship (60%) for animals tagged with an abdominal T-bar, and higher survivorship (83.3%) for fish tagged with an anchor T-bar, which were similar to the untagged animals. Studying Lutjanuscampechanus (43.7 ± 5.6 g), Phelps, Rodrigues (2011) found that fish tagged or not with an abdominal T-bar, PIT tag and mandibular tag for 150 days did not differ in survivorship.…”

Section: Discussionmentioning

confidence: 97%

An external tag for fish: tagging effects in different fish size classes and its influence on growth performance and hematology of Lophiosilurus alexandri (Siluriformes: Pseudopimelodidae)

Boaventura

Gil

Gil³

et al. 2019

Neotrop. ichthyol.

View full text Add to dashboard Cite

This study tested an external tag for juveniles of Lophiosilurus alexandri and measured the effects of tagging in different size classes of fishes. Experiment 1 evaluated the retention rate and influence of the tag on survival and growth of three hundred fishes divided Small, Medium and Large size classes. After 90 days of experiment the fishes had 100% survival and the tag had a higher retention rate for animals of the Large size class. Experiment 2 evaluated the tag’s influence on hematology parameters of forty-two fishes at 5, 10 and 30 days post-tagging. In this experiment both tagged and untagged animals experienced 9.4% mortality. The hematocrit was higher on the 30th day for tagged animals than for untagged animals. No difference was observed for leukocytes, plasma protein, erythrocytes and mean corpuscular volume. It was concluded from Experiment 1 that the tag reduced growth performance when applied to small sized juvenile L. alexandri, and that the tag retention rate increased with increasing animal size. Among the hematological parameters studied for juveniles on the Experiment 2 the tag only influenced the hematocrit parameters, which shows that the tag can be used without considerable influence on the hematological parameters of juvenile L. alexandri.

show abstract

Section: Discussionmentioning

confidence: 97%

An external tag for fish: tagging effects in different fish size classes and its influence on growth performance and hematology of Lophiosilurus alexandri (Siluriformes: Pseudopimelodidae)

Boaventura

Gil

Gil³

et al. 2019

Neotrop. ichthyol.

View full text Add to dashboard Cite

show abstract

“…For example, juvenile Meager Argyrosomus regius with anchor tags had a 40% mortality rate when they were held in laboratory tanks for 118 days (del Mar Gil et al. 2017). Furthermore, adult Red Snapper that were held in laboratory conditions for 150 days had a 29% mortality rate for anchor tags, but this rate was like those for jaw tags, PIT tags, and nontagged individuals (Phelps and Rodriguez 2011).…”

Section: Discussionmentioning

confidence: 99%

Estimating internal transmitter and external tag retention by Walleye in the Laurentian Great Lakes over multiple years

Colborne,

Faust,

Brenden

et al. 2024

N American J Fish Manag

View full text Add to dashboard Cite

ObjectiveBoth electronic tags (e.g., acoustic and radio transmitters) and conventional external tags are used to evaluate movement and population dynamics of fish. External tags are also sometimes used to facilitate the recovery of internal electronic tags or other instrumentation because healing can make it difficult to identify fish with internal tags based on appearance alone. With both tag types, tag shedding and failure of electronic tags can affect accuracy and precision of study results.MethodsWe used a decade (2011–2021) of recapture data for Walleye Sander vitreus tagged in the Laurentian Great Lakes, where fish were double‐ or triple‐tagged with external tags (T‐bar, loop, or internal anchor tags) and internal acoustic transmitters, to quantify external tag and internal transmitter shedding and transmitter failure rates.ResultIn total, 1125 (33%) Walleye were recovered that had retained at least one external tag or internal transmitter. No confirmed cases of transmitter shedding were observed; 15 of 899 transmitters (2%) that were checked for functionality failed prior to the expected battery expiration. The retention of external T‐bar tags 1 year after release differed depending on whether the tag was placed anterior or posterior to the secondary dorsal fin (anterior, fish length = 420 mm: 73% retention; anterior, fish length = 700 mm: 73%, posterior: 63%) but was <26% after 4 years for both tag positions and fish sizes. Internal anchor tags had an 88% 1‐year retention probability and 81% 4‐year retention probability. Loop tags had the highest 1‐year retention (89%) but after 4 years retention (28–34% depending on agency) was comparable to that of T‐bar tags.ConclusionBetter understanding of tag retention characteristics through long‐term tagging studies such as this can inform study design, be considered in model design, and ultimately improve inferences from mark–recapture studies.

show abstract

“…up to approx. 40%, [ 78 ]), but it is expected to be very low in N. cepedianus , as individuals have shown high survival rates (approx. 97% of the tagged sharks were posteriorly detected) and minimal evidence of being tagged when recaptured [ 64 ].…”

Section: Discussionmentioning

confidence: 99%

The essential habitat role of a unique coastal inlet for a widely distributed apex predator

De Wysiecki,

Barnett,

Cortés

et al. 2023

R. Soc. open sci.

View full text Add to dashboard Cite

Essential habitats support specific functions for species, such as reproduction, feeding or refuge. For highly mobile aquatic species, identifying essential habitats within the wider distribution range is central to understanding species ecology, and underpinning effective management plans. This study examined the movement and space use patterns of sevengill sharks ( Notorynchus cepedianus ) in Caleta Valdés (CV), a unique coastal habitat in northern Patagonia, Argentina. Seasonal residency patterns of sharks were evident, with higher detectability in late spring and early summer and lower during autumn and winter. The overlap between the residency patterns of sharks and their prey, elephant seals, suggests that CV functions as a seasonal feeding aggregation site for N. cepedianus . The study also found sexual differences in movement behaviour, with males performing abrupt departures from CV and showing increased roaming with the presence of more sharks, and maximum detection probability at high tide. These movements could be related to different feeding strategies between sexes or mate-searching behaviour, suggesting that CV may also be essential for reproduction. Overall, this study highlights the importance of coastal sites as essential habitats for N. cepedianus and deepens our understanding of the ecological role of this apex predator in marine ecosystems.

show abstract

Comparing tagging strategies: Effects of tags on retention rate, mortality rate and growth in hatchery-reared juvenile meagre, <em>Argyrosomus regius</em> (Pisces: Sciaenidae)

Cited by 8 publications

References 33 publications

An external tag for fish: tagging effects in different fish size classes and its influence on growth performance and hematology of Lophiosilurus alexandri (Siluriformes: Pseudopimelodidae)

An external tag for fish: tagging effects in different fish size classes and its influence on growth performance and hematology of Lophiosilurus alexandri (Siluriformes: Pseudopimelodidae)

Estimating internal transmitter and external tag retention by Walleye in the Laurentian Great Lakes over multiple years

The essential habitat role of a unique coastal inlet for a widely distributed apex predator

Contact Info

Product

Resources

About