scholarly journals Genetic connectivity of lionfish ( Pterois volitans ) in marine protected areas of the Gulf of Mexico and Caribbean Sea

2020 ◽  
Vol 10 (9) ◽  
pp. 3844-3855
Author(s):  
Irán A. Guzmán‐Méndez ◽  
Renata Rivera‐Madrid ◽  
Serge Planes ◽  
Emilie Boissin ◽  
Aldo Cróquer ◽  
...  
1999 ◽  
Vol 42 (2-4) ◽  
pp. 319-344 ◽  
Author(s):  
A. Yáñez-Arancibia ◽  
A.L. Lara-Domı́nguez ◽  
J.L. Rojas Galaviz ◽  
D.J. Zárate Lomeli ◽  
G.J. Villalobos Zapata ◽  
...  

2021 ◽  
Vol 32 ◽  
pp. GCFI1-GCFI4
Author(s):  
Raven Blakeway ◽  
Alexander Fogg ◽  
Glenn Jones

Indo-Pacific lionfish (Pterois volitans/miles) were first detected off the coast of Florida in the 1980s, with aquaria release being the most likely mechanism for introduction. Since then, lionfish have proliferated through the Western Atlantic Ocean, Caribbean Sea, and Gulf of Mexico (GOM). Here, we report the oldest lionfish aged on record in the Western Atlantic, removed from Flower Garden Banks National Marine Sanctuary (FGBNMS) in the GOM. In August 2018, a research expedition removed 745 lionfish from FGBNMS, of which a subset were retained for age and growth estimation. The oldest lionfish was a 10 y old male, with total length 375 mm and weight 805 g. The back-calculated birth date (2008) preceded the first observation of lionfish at FGBNMS by 3 years (2011). It is not well understood if lionfish are having negative impacts at FGBNMS, but this report signifies the importance of continued monitoring and removal efforts of this protected area.


PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e8485
Author(s):  
Oscar de Jesús Rosado-Nic ◽  
J. Derek Hogan ◽  
José Héctor Lara-Arenas ◽  
Rigoberto Rosas-Luis ◽  
Laura Carrillo ◽  
...  

Background The gray snapper (Lutjanus griseus) has a tropical and subtropical distribution. In much of its range this species represents one of the most important fishery resources because of its high quality meat and market value. Due to this, this species is vulnerable to overfishing, and population declines have been observed in parts of its range. In recent decades, it has been established that knowing the level of genetic connectivity is useful for establishing appropriate management and conservation strategies given that genetic isolation can drive towards genetic loss. Presently the level of genetic connectivity between subpopulations of L. griseus of the southern region of the Gulf of Mexico and the Caribbean Sea remains unknown. Methods In the present study we analyze genetic structure and diversity for seven subpopulations in the southern Gulf of Mexico and the Mexican Caribbean Sea. Eight microsatellite primers of phylogenetically closely related species to L. griseus were selected. Results Total heterozygosity was 0.628 and 0.647 in the southern Gulf of Mexico and the Mexican Caribbean Sea, however, results obtained from AMOVA and RST indicated a lack of genetic difference between the major basins. We also found no association between genetic difference and geographic distance, and moderately high migration rates (Nm = > 4.1) suggesting ongoing gene flow among the subpopulations. Gene flow within the southern Gulf of Mexico appears to be stronger going from east-to-west. Conclusions Migration rates tended to be higher between subpopulations within the same basin compared to those across basins indicating some regionalization. High levels of genetic diversity and genetic flow suggest that the population is quite large; apparently, the fishing pressure has not caused a bottleneck effect.


2021 ◽  
Vol 69 (4) ◽  
pp. 1164-1178
Author(s):  
Fernando Aranceta-Garza ◽  
Pedro Cruz-Hernández ◽  
Héctor Reyes-Bonilla ◽  
Eduardo F. Balart

Introduction: Estimates of contemporary connectivity of the broadcast spawning coral Pocillopora verrucosa between multi-use marine protected areas (MUMPAs) are required to assess MUMPA effectiveness and their ability to enhance resilience against disturbances. Objective: To determine the genetic structure and connectivity patterns between P. verrucosa demes inside the Gulf of California and evaluate the role and effectiveness of established MUMPAS in their protection and resilience. Methods: We assessed P. verrucosa connectivity along its peninsular range (∼350 km), including five locations and three MUMPAs in the Gulf of California using six microsatellite genetic markers. Results: Population structure was significant (FST = 0.108***) when demes included clonal replicates; however, when these clones were removed from the analysis, the sexual individuals comprised a metapopulation panmixia (FST = 0.0007 NS). To further understand connectivity patterns, an assignment test was carried out which identified ten recent between-deme migrants with a mean dispersal distance of 116.6 km (± 80.5 SE). No long-distance dispersal was detected. These results highlight the ecological importance of the Bahía de La Paz region, including Archipiélago de Espíritu Santo MUMPA. This region, located at the center of the species peninsular range, exports larva to downstream sink demes such as the Loreto (northwardly) and Cabo Pulmo (southwardly) MUMPAs. Of importance, inter-MUMPA spacing was larger than the mean larval dispersal by ~56 km, suggesting thar the designation of intermediate ‘no-take’ zones would enhance short-distance connectivity. Conclusion: This study contributes as a baseline for policymakers and authorities to provide robust strategies for coral ecosystem protection and suggest that protection efforts must be increased towards peninsular intermediate reefs to promote metapopulation resilience from natural and anthropogenic factors.


Fisheries ◽  
2004 ◽  
Vol 29 (2) ◽  
pp. 10-21 ◽  
Author(s):  
Felicia C. Coleman ◽  
Pamela B. Baker ◽  
Christopher C. Koenig

2013 ◽  
Vol 19 (12) ◽  
pp. 1531-1542 ◽  
Author(s):  
José Martin Pujolar ◽  
Marcello Schiavina ◽  
Antonio Di Franco ◽  
Paco Melià ◽  
Paolo Guidetti ◽  
...  

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