The ‘pole-hooking’ method: A novel and economical technique for in situ tagging small to medium-sized fishes

Irigoyen, Alejo Joaquín; Venerus, Leonardo A.

doi:10.1016/j.fishres.2007.12.015

Cited by 9 publications

(6 citation statements)

References 13 publications

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“…However; the data clearly indicated that species having strong site fidelity, i.e. Acanthistius brasilianus (Irigoyen & Venerus, 2008) and Pseudopercis semifasciata, were clearly more abundant and/or frequent in ARs (shipwrecks) compared to the surrounding NRs, suggesting a preference for habitat with more complex structure. In NRs these species occur only in cliffs and crevices of BAS but they are rare or absent in the less structurally complex outcrops.…”

Section: Discussionmentioning

confidence: 95%

Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic

Genzano

Giberto

Bremec

2011

lajar

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ABSTRACT. This study describes the macrofaunal assemblages of subtidal rocky reefs off Mar del Plata in order to compare the macro invertebrate assemblages settled on shipwrecks with those of nearby reef sand to characterize the fish fauna associated with natural (NR) and artificial (AR) reefs. Topographic characterizations and surveys of invertebrates and fishes were performed in November and December 2005, using SCUBA diving. A non-parametric multivariate analysis was used to analyze the environmental and biological data. The reefs were mainly distinguished by their depth and the position of the substrate. The red calcareous algae, Corallina officinalis, dominated the shallowest NR, whereas conspicuous mytilid assemblages of Mytilus platensis were present at depths over 3 m, sea anemones, Anthothoe chilensis, were more abundant between 6 and 10 m, and the soft coral, Tripalea clavaria, was found at nearly 20 m depth. No differences were found between horizontal ARs and the adjacent NRs. The greatest differences were found between the communities of vertical and horizontal substrates, both in NRs and ARs. Fifteen fish species were recorded in the analyzed area. Species having strong site fidelity, e.g., Acanthistius brasilianus and Pseudopercis semifasciata, were clearly more abundant and/or frequent in ARs (shipwrecks) than in NRs. This pioneer study in the surveyed area showed that reef sallow the settlement of diverse benthic assemblages. ARs also provide refuge for fishes. As sport fishing and diving are activities being carried out in Mar del Plata, where tourism is one of the main economic resources, the protection of such areas should be considered in conservation plans.

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Section: Discussionmentioning

confidence: 95%

Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic

Genzano

Giberto

Bremec

2011

lajar

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“…In addition, substantial personnel and logistic resources are required to facilitate the lengthy tagging and recovery process (Hammer and Lee Blankenship ). However, methods to mark individuals in situ, such as implanting internal tags via pole hooking (Irigoyen and Venerus ) or surgery, (Parker et al. ; Starr et al.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, substantial personnel and logistic resources are required to facilitate the lengthy tagging and recovery process (Hammer and Lee Blankenship 2001). However, methods to mark individuals in situ, such as implanting internal tags via pole hooking (Irigoyen and Venerus 2008) or surgery, (Parker et al 1990;Starr et al 2000;Lindholm et al 2005), or external dart tag application through spearing (Adkison et al 1995), can help to address some of these issues, depending on the species, its environment and logistical considerations.…”

Section: Introductionmentioning

confidence: 99%

In situ tagging technique for fishes provides insight into growth and movement of invasive lionfish

Akins

Morris

Green

2014

Ecology and Evolution

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Information on fish movement and growth is primarily obtained through the marking and tracking of individuals with external tags, which are usually affixed to anesthetized individuals at the surface. However, the quantity and quality of data obtained by this method is often limited by small sample sizes owing to the time associated with the tagging process, high rates of tagging-related mortality, and displacement of tagged individuals from the initial capture location. To address these issues, we describe a technique for applying external streamer and dart tags in situ, which uses SCUBA divers to capture and tag individual fish on the sea floor without the use of anesthetic. We demonstrate this method for Indo-Pacific lionfish (Pterois volitans/P. miles), species which are particularly vulnerable to barotrauma when transported to and handled at the surface. To test our method, we tagged 161 individuals inhabiting 26 coral reef locations in the Bahamas over a period of 3 years. Our method resulted in no instances of barotrauma, reduced handling and recovery time, and minimal post-tagging release displacement compared with conventional ex situ tag application. Opportunistic resighting and recapture of tagged individuals reveals that lionfish exhibit highly variable site fidelity, movement patterns, and growth rates on invaded coral reef habitats. In total, 24% of lionfish were resighted between 29 and 188 days after tagging. Of these, 90% were located at the site of capture, while the remaining individuals were resighted between 200 m and 1.1 km from initial site of capture over 29 days later. In situ growth rates ranged between 0.1 and 0.6 mm/day. While individuals tagged with streamer tags posted slower growth rates with increasing size, as expected, there was no relationship between growth rate and fish size for individuals marked with dart tags, potentially because of large effects of tag presence on the activities of small bodied lionfish (i.e., <150 mm), where the tag was up to 7.6% of the lionfish's mass. Our study offers a novel in situ tagging technique that can be used to provide critical information on fish site fidelity, movement patterns, and growth in cases where ex situ tagging is not feasible.

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“…Between 2013 and 2017, 17 fish ranging in TL between 26 and 35 cm were captured in natural and artificial reefs located in the Golfo Nuevo, at depths between 5 and 10 m (Table ). Fish were pole‐hooked (Irigoyen & Venerus ) or captured inside crevices with a fishing landing net by scuba divers. Three of them were slowly brought to the surface in a dip net to avoid sudden changes in pressure and were then relocated to the CENPAT (Centro Nacional Patagónico) experimental aquarium; one of these fish was not equipped because it showed abnormal swimming behaviour.…”

Section: Methodsmentioning

confidence: 99%

Activity budgets for the sedentary Argentine sea bass Acanthistius patachonicus inferred from accelerometer data loggers

et al. 2018

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The amount of energy an animal uses to move may constitute a significant fraction of its energy budget, so detailed descriptions of wild animal activity budgets can help to understand the ecology of a species, both at the individual and at the population levels. The rocky-reef fishes inhabiting the northern Patagonian gulfs of Argentina are important economic and recreational resources for which no activity or energy budgets are available. This fish assemblage may reach high aggregated biomasses (exceeding several hundreds of kilogrammes of fish distributed along a few hundred metres of linear reef ledges) and is not clear how such biomasses can be supported by the low productivity of the Patagonian coastal waters. We used animal-attached accelerometers to characterise the behaviours and activity budgets for the most abundant and ubiquitous species of this assemblage, the Argentine sea bass or 'Mero' Acanthistius patachonicus (Jenyns, 1840; Osteichthyes: Serranidae). Sixteen individuals were tagged (two in captivity and 14 free-living) and an ethogram was generated from acceleration recordings in varying environmental conditions. Two algorithms were used to classify the behaviours of wild fish. Both showed generally similar results during the cold-water season (8-10°C), but differed slightly in the warm-water season (16-18°C). Overall, sea bass were more active during warm season (mean time spent engaged in active behaviours; 46%, range; 24-60%). In contrast, during cold season fish only spent a mean of 29% of their time in active behaviours (range; 15-49%). No clear response to tidal state or ambient light was found, but some fish were more active during the night in the cold water season. Here, we provide the first activity budgets for the conspicuous Argentine sea bass, which contribute to our understanding of rocky-reef fish behaviour in Patagonia.Abstract in French is available with online material.

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The ‘pole-hooking’ method: A novel and economical technique for in situ tagging small to medium-sized fishes

Cited by 9 publications

References 13 publications

Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic

Benthic survey of natural and artificial reefs off Mar del Plata, Argentina, southwestern Atlantic

In situ tagging technique for fishes provides insight into growth and movement of invasive lionfish

Activity budgets for the sedentary Argentine sea bass Acanthistius patachonicus inferred from accelerometer data loggers

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