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In contemporary world politics, Taiwan is, for different reasons, a subject of great contention. The constant conflict it faces with Beijing over the claim to fully integrate it into its sovereignty, in the conception of a single China, limits its expectations as a possible independent state. Given this, and in a long-standing dispute, the groups in power, both in Beijing and in Taipei, confront each other precisely because of these visions, which is the object of constant encounters and disagreements. Thus, and intending to firmly maintain international recognition through a low-profile strategy, Taiwan has maintained formal ties with different states in different regions of the world, including Latin America and the Caribbean. This has allowed the use of its official links in some countries in the area, which are exposed to pressure from the government of the People’s Republic of China, which appears as a counterweight to Taipei’s efforts. With this background, the purpose of this paper is to describe that the presence of Taiwan in Latin America and the Caribbean depends on the ability of its political leaders to materialize initiatives whose impact is not of great importance in the dynamics of regional politics and economics. This will allow you to avoid situations that jeopardize the achievements achieved so far and allow you to continue with this status quo created over time. [ABSTRACT FROM AUTHOR]

The blackfin tuna, Thunnus atlanticus, is a small tropical tuna exploited by recreational and commercial fisheries in various parts of its range. Information on stock structure is needed to develop management plans for this species but is currently lacking. In this work, 470 blackfin tuna from nine geographic populations were assayed at 13 homologous microsatellite markers to provide a first assessment of stock structure across the species range. The overall divergence among locality samples was very low (overall FST = 0.0004) indicating high connectivity of blackfin tuna across their range. No clear grouping of localities in differentiated units was inferred but structuring followed a weak isolation by distance pattern (r = 0.16, P = 0.032). Pairwise exact tests and spatial analysis of molecular variance suggested divergence of the sample collected offshore Baía Formosa (Brazil) possibly reflecting reproductive isolation of Brazilian populations from those in the Caribbean region and further north. Further study of the status of Brazilian populations and the transition between this region and the Caribbean is warranted. Cryptic subdivision within the Northern Hemisphere part of the range is possible and should be evaluated using increased marker density and a more comprehensive geographic coverage. [ABSTRACT FROM AUTHOR]