Phylogeographic structure and population connectivity of a small benthic fish (<i>Tripterygion tripteronotum</i>) in the Adriatic Sea

Sefc, Kristina M.; Wagner, Maximilian; Zangl, Lukas; Weiß, Sara; Steinwender, Bernd; Arminger, Paul; Weinmaier, Theresa; Balkic, Nejra; Köhler, Tobias; Inthal, Silvio; Kovačić, Marcelo; Zogaris, Stamatis; Hahn, Christoph; Koblmüller, Stephan

doi:10.1111/jbi.13946

Cited by 8 publications

(6 citation statements)

References 88 publications

(172 reference statements)

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“…The general lack of genetic structure in the GC could be related to seasonally reversing surface currents and mesoscale eddies (Lavín and Marinone, 2003) that transport fish larvae, creating different patterns of metapopulation structure that tend to homogenize allele frequencies (Beldade et al ., 2014; Cisneros‐Mata et al ., 2018; Lodeiros et al ., 2016; Munguia‐Vega et al ., 2014, 2018a; Reguera‐Rouzaud et al ., 2020; Soria et al ., 2012). However, swimming behaviour, different settlement success and topography, like the narrow continental shelf or very steep slopes, could also contribute to genetic differences (Sefc et al ., 2020).…”

Section: Discussionmentioning

confidence: 99%

Drivers for genetic structure at different geographic scales for Pacific red snapper (Lutjanus peru) and yellow snapper (Lutjanus argentiventris) in the tropical eastern Pacific

Reguera-Rouzaud

Díaz-Viloria

Pérez‐Enríquez

et al. 2021

Journal of Fish Biology

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The tropical eastern Pacific (TEP) is a highly dynamic region and a model system to study how habitat discontinuities affect the distribution of shorefishes, particularly for species that display ontogenetic habitat shifts, including snappers (Lutjanidae). To evaluate the genetic structure of the Pacific red snapper (Lutjanus peru) and the yellow snapper (Lutjanus argentiventris) throughout their distribution range along the TEP, 13 and 11 microsatellite loci were analysed, respectively. The genetic diversity of L. peru (N = 446) and L. argentiventris (N = 170) was evaluated in 10 and 5 localities, respectively, showing slightly higher but non-significant values in the Gulf of California for both species. The genetic structure analysis identified the presence of significant genetic structure in both species, but the locations of the identified barriers for the gene flow differed between species. The principal driver for the genetic structure at large scales >2500 km was isolation by distance. At smaller scales (<250 km), the habitat discontinuity for juveniles and adults and the environmental differences throughout the distribution range represented potential barriers to gene flow between populations for both species.

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Section: Discussionmentioning

confidence: 99%

Drivers for genetic structure at different geographic scales for Pacific red snapper (Lutjanus peru) and yellow snapper (Lutjanus argentiventris) in the tropical eastern Pacific

Reguera-Rouzaud

Díaz-Viloria

Pérez‐Enríquez

et al. 2021

Journal of Fish Biology

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“…The role of gyres in producing unexpected patterns of distribution in benthic organisms was already recognized. For example, the genetic population differentiation of the small benthic blennid Tripterygion tripteronotum Risso, 1810 corresponded with boundaries between the Adriatic re-circulation gyres (Sefc et al 2020). In other cases, the gyre direction, coupled with the lack of suitable substrate, can constitute a barrier for the distribution of benthic organisms, like the threshold between the Tyrrhenian and the Ionian fauna (Villamor et al 2014;Toma et al 2022).…”

Section: Distribution Pattern Of Leptogorgia Sarmentosa At Sardiniamentioning

confidence: 99%

Leptogorgia sarmentosa (Anthozoa: Octocorallia) in NE Sardinia (Mediterranean Sea): distribution and growth patterns

2023

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Distribution and occurrence data of the sea fan Leptogorgia sarmentosa (Esper, 1791) in the Mediterranean Sea were updated thanks to new photographic surveys, highlighting the presence of the species off NE Sardinia and, in particular, in the Tavolara-Punta Coda Cavallo Marine Protected Area (TPCCMPA). The estimated average distance among colonies strongly suggests that they are not able to sexually reproduce and that they probably can be considered a sterile pseudo-population supported by inputs of larvae from the Italian mainland coast towards Sardinia. The putative conveyor belt for larval input to this area is a small permanent gyre (the North-Tyrrhenian Gyre) counterclockwise moving from the Italian to the Sardinian coasts. In TPCCMPA, the growth of one colony settled at 30 m depth was investigated across 7 years (2016–2022). The morphometric parameters indicated a linear development of the colony, in terms of branch development and 3D complexity estimated through the fractal dimension. The observed growth rates were not regular but were reached through a highly variable positive and negative oscillation. A significant correlation was obtained between growth rate and average Autumn and Winter water temperature, suggesting that somatic growth occurs in these periods. In the context of long-lasting elevated seawater temperatures and local damage linked to fishing activities, L. sarmentosa was confirmed to be a resilient species compared with other erect seascape components, like other gorgonians and sponges.

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“…Marine fish disperse on ocean currents, and many studies find that ocean currents rather than geographic distance provide a more effective explanation for dispersal patterns (Schunter et al, 2011 ; Sefc et al, 2020 ; White et al, 2010 ; Xuereb et al, 2018 ). Despite this, geographic distance provides an adequate description of dispersal for many marine species (Berry et al, 2012 ; Hirase et al, 2020 ; Saenz‐Agudelo et al, 2012 ), and, in some species, distance is a better descriptor of dispersal than oceanography (Crandall et al, 2014 ; Wynsberge et al, 2017 ).…”

Section: Discussionmentioning

confidence: 99%

Isolation‐by‐distance and isolation‐by‐oceanography in Maroon Anemonefish (Amphiprion biaculeatus)

Fitz

Montes

Thompson

et al. 2022

Evolutionary Applications

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Obtaining dispersal estimates for a species is key to understanding local adaptation and population dynamics and to implementing conservation actions. Genetic isolation‐by‐distance (IBD) patterns can be used for estimating dispersal, and these patterns are especially useful for marine species in which few other methods are available. In this study, we genotyped coral reef fish ( Amphiprion biaculeatus ) at 16 microsatellite loci across eight sites across 210 km in the central Philippines to generate fine‐scale estimates of dispersal. All sites except for one followed IBD patterns. Using IBD theory, we estimated a larval dispersal kernel spread of 8.9 km (95% confidence interval of 2.3–18.4 km). Genetic distance to the remaining site correlated strongly with the inverse probability of larval dispersal from an oceanographic model. Ocean currents were a better explanation for genetic distance at large spatial extents (sites greater than 150 km apart), while geographic distance remained the best explanation for spatial extents less than 150 km. Our study demonstrates the utility of combining IBD patterns with oceanographic simulations to understand connectivity in marine environments and to guide marine conservation strategies.

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Phylogeographic structure and population connectivity of a small benthic fish (Tripterygion tripteronotum) in the Adriatic Sea

Abstract: This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

Cited by 8 publications

References 88 publications

Drivers for genetic structure at different geographic scales for Pacific red snapper (Lutjanus peru) and yellow snapper (Lutjanus argentiventris) in the tropical eastern Pacific

Drivers for genetic structure at different geographic scales for Pacific red snapper (Lutjanus peru) and yellow snapper (Lutjanus argentiventris) in the tropical eastern Pacific

Leptogorgia sarmentosa (Anthozoa: Octocorallia) in NE Sardinia (Mediterranean Sea): distribution and growth patterns

Isolation‐by‐distance and isolation‐by‐oceanography in Maroon Anemonefish (Amphiprion biaculeatus)

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