Patterns of connectivity among populations of a coral reef fish

Chittaro, Paul M.; Hogan, J. Derek

doi:10.1007/s00338-012-0990-0

Cited by 14 publications

(7 citation statements)

References 76 publications

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“…Telemetry studies have shown that lake trout exhibit extensive seasonal movements and spawn in distinct locations within Yellowstone Lake (Williams 2019;Gutowsky et al 2020); however, we were unable to detect specific natal origins or movement patterns within the lake using otolith microchemistry. Though our negative results were not wholly unexpected, previous studies have shown microchemistry can detect natal origin differences in freshwater and marine fish separated by as little as 5-11 km geographic distance (Kennedy et al 2000;Chittaro & Hogan 2013). Chittaro & Hogan (2013) suggested that sites with long water residency times, high sediment inputs from different geologies, and those with high anthropogenic inputs facilitate development of unique isotope signatures.…”

Section: Discussioncontrasting

confidence: 39%

Use of otolith microchemistry to identify subbasin natal origin and use by invasive Lake Trout in Yellowstone Lake

et al. 2021

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Nonindigenous lake trout (Salvelinus namaycush) expansion in Yellowstone Lake has led to a large decline in the native Yellowstone cutthroat trout (Oncorhynchus clarkii bouvieri) population. We assessed whether otolith microchemistry could be used to identify subbasin natal origins and longterm use by lake trout as a potential tool for optimizing removal efforts. 87 Sr: 86 Sr and Sr:Ca ratios in otolith cores were used to assess natal origins and 87 Sr: 86 Sr ratios in otolith transects were used to assess movement patterns. Water chemistry was similar throughout the lake, ranging from 0.70634 to 0.70642 and 3.94 to 4.38 mmol/mol for 87 Sr: 86 Sr, and Sr:Ca ratios, respectively. Lake trout otoliths also showed little variation in 87 Sr: 86 Sr and Sr:Ca ratios of the natal region and 87 Sr: 86 Sr across otolith transects. Thus, we found that microchemical differences among Sr isotope and Sr:Ca elemental ratios in otoliths were insufficient to detect the natal origin or extensive within-lake movement that has been established from telemetry investigations. Detailed analysis of other elements or isotopes in hard-part microchemistry, in combination with other tools for detecting movement, may improve detection of natal origin and life history movement among fishes within freshwater lentic systems.

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Section: Discussioncontrasting

confidence: 39%

Use of otolith microchemistry to identify subbasin natal origin and use by invasive Lake Trout in Yellowstone Lake

et al. 2021

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“…The chemical signatures of reefs and mangroves were characterized by analyzing the chemical composition at the surface of otoliths (outer edge) of up to five fish randomly selected in each sample ( Table 1A ). This method proposed by Warner et al [38] allows characterizing the latest elemental signature recorded in the otolith, which corresponds to the habitat where the fish was caught [35] – [37] . Otoliths of these fishes were cleaned of organic material following Warner et al 's [38] method: otoliths were bathed in a 50/50 H 2 O 2 (30%, Suprapur grade) and NaOH (Suprapur grade, 0.1 mol.L −1 ) solution during 1 hour, sonicated during the last 5 min of the bath, rinsed 5 times with ultrapure water for 5 min, dried under a laminar flow hood (HEPA 100) and stored dry in individual vials until microchemistry analyses.…”

Section: Methodsmentioning

confidence: 99%

Extent of Mangrove Nursery Habitats Determines the Geographic Distribution of a Coral Reef Fish in a South-Pacific Archipelago

et al. 2014

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Understanding the drivers of species' geographic distribution has fundamental implications for the management of biodiversity. For coral reef fishes, mangroves have long been recognized as important nursery habitats sustaining biodiversity in the Western Atlantic but there is still debate about their role in the Indo-Pacific. Here, we combined LA-ICP-MS otolith microchemistry, underwater visual censuses (UVC) and mangrove cartography to estimate the importance of mangroves for the Indo-Pacific coral reef fish Lutjanus fulviflamma in the archipelago of New Caledonia. Otolith elemental compositions allowed high discrimination of mangroves and reefs with 83.8% and 98.7% correct classification, respectively. Reefs were characterized by higher concentrations of Rb and Sr and mangroves by higher concentrations of Ba, Cr, Mn and Sn. All adult L. fulviflamma collected on reefs presented a mangrove signature during their juvenile stage with 85% inhabiting mangrove for their entire juvenile life (about 1 year). The analysis of 2942 UVC revealed that the species was absent from isolated islands of the New Caledonian archipelago where mangroves were absent. Furthermore, strong positive correlations existed between the abundance of L. fulviflamma and the area of mangrove (r = 0.84 for occurrence, 0.93 for density and 0.89 for biomass). These results indicate that mangrove forest is an obligatory juvenile habitat for L. fulviflamma in New Caledonia and emphasize the potential importance of mangroves for Indo-Pacific coral reef fishes.

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“…This has been shown based upon larval recruitment back into a reserve (Harrison et al 2012, Almany et al 2013, microchemistry (Chittaro & Hogan 2013), and population genetics (Christie et al 2010, D'Aloia et al 2015. However, the shape and function of a larval dispersal network can change, depending on the species (Holstein et al 2014) and the timescales (Kough & Paris 2015) being considered.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of an established marine protected area at sustaining a queen conch Lobatus gigas population during three decades of monitoring

Kough¹,

Cronin²,

Skubel³

et al. 2017

Mar. Ecol. Prog. Ser.

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Marine Protected Areas (MPAs) are designed to conserve and preserve the ecosystems and cultural resources of the ocean. In theory, protected populations flourish, replenish adjacent regions, and are self-sustaining. However, describing the efficacy of MPAs requires long-term monitoring. Queen conch Lobatus gigas are iconic Caribbean denizens with populations that have been decimated by overfishing and are slow to rebound due to density-dependent breeding. The Exuma Cays Land and Sea Park (ECLSP) is a well-enforced, no-take, old, and large MPA. Surveys in 1994, 2011, and 2016 were used to track changes in the abundance, size, and age structure of conch within the park. Statistical models suggested that abundances of adults in 50 km of repeated towed-observer surveys had declined by 71% in 2016 relative to 2011. Further, the remaining conch populations were associated with tidal channels, and these model results agreed with independent observations in 40 km of expanded survey area. Measurements of shell lip thickness, an estimator of relative age, showed an increase relative to 1994 with the greatest effect in 2016, indicating senescence. The ECLSP population appears to be slowly dying of old age, and an early life history process has been altered. Upstream populations have been heavily fished while habitats within the park remain productive, suggesting that low local retention and a lack of exogenous larval sources are driving the decline. A network of MPAs encompassing the entire life cycle and dispersal envelope of targeted organisms is needed for proper conch conservation. Surveys focused on tidal channels could locate candidate upstream populations of conch.

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Patterns of connectivity among populations of a coral reef fish

Cited by 14 publications

References 76 publications

Use of otolith microchemistry to identify subbasin natal origin and use by invasive Lake Trout in Yellowstone Lake

Use of otolith microchemistry to identify subbasin natal origin and use by invasive Lake Trout in Yellowstone Lake

Extent of Mangrove Nursery Habitats Determines the Geographic Distribution of a Coral Reef Fish in a South-Pacific Archipelago

Efficacy of an established marine protected area at sustaining a queen conch Lobatus gigas population during three decades of monitoring

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