Papers by Mauricio Benitez
Heptapterus mandimbusu Aguilera & Benitez & Terán & Alonso & Mirande 2017, sp. n
<i>Heptapterus mandimbusu</i>, sp. n. Fig. 1, Table 1 <b>Holotype.</b> CI... more <i>Heptapterus mandimbusu</i>, sp. n. Fig. 1, Table 1 <b>Holotype.</b> CI-FML 7238, 134.2 mm SL, Argentina, Misiones, Uruguay River basin, Melo stream, 27°25'2.67"S, 54°42'7.93"W, November 13, 2016. G. Aguilera, J. M. Mirande, G. Terán, M. Benitez, D. Baldo, J. M. Ferro and F. Alonso. <b>Paratypes.</b> All material collected with Holotype. CI-FML 7239, 6 ex. (2 ex. C&amp;S), 54.6 – 175.6 mm SL; LGEP 529, 1 ex., 107.4 mm SL; LGEP 530, 5 ex., 58.3–113.4 mm SL; LGEP 538, 1 ex. C&amp;S, 70.5 mm SL; IBIGEO-I 446, 3 ex., 65.1–89.7 mm SL. <b>Diagnosis</b>. <i>Heptapterus mandimbusu</i> is distinguished by its unique coloration pattern, with aggregated melanophores scattered on dorsal and lateral surfaces of body, forming conspicuous blotches of variable size (Fig. 1 and 2) <i>vs</i>. absence of this pattern in the remaining species of the genus. <i>Heptapterus bleekeri</i>, <i>H. fissipinnis, H. multiradiatus, H. mustelinus, H. qenqo, H. stewarti, H. sympterigium</i> and <i>H. tapanahoniensis</i> present a rather uniform earth-brown coloration pattern (with some irregular markings on head and sometimes indistinct on back in <i>H. bleekeri</i>); while <i>H. mbya</i> and <i>H. ornaticeps</i> have a uniform coloration pattern (greyish and blackish respectively). There are three species of <i>Heptapterus</i> inhabiting Argentinean basins, the type species of the genus <i>Heptapterus mustelinus</i>, and the recently described, <i>H. qenqo</i> and <i>H. mbya</i>. <i>Heptapterus mandimbusu</i> n. sp., has a longer interdorsal distance (13.8–18.9 % SL), which distinguishes it from <i>H. mustelinus</i> (3.1–5.0 % SL), <i>H. qenqo</i> (9.5–13.2 % SL), and <i>H. mbya</i> (5.8–8.3 % SL). <i>Heptapterus mandimbusu</i> can be further distinguished from <i>H. mustelinus</i> by a shorter distance between the anal-fin origin and hypural plate (32.9–39.1 % SL vs. 39.6–45.7 % SL), a longer distance between the origins of pelvic and pectoral fins (24.5–28.1 % SL vs. 20.4–24.2 % SL), a shorter adipose-fin base (33.8–41.5 % SL vs. 51.5–59.6 [...]
Megaleporinus obtusidens and M. macrocephalus were known to be the only representatives of the ge... more Megaleporinus obtusidens and M. macrocephalus were known to be the only representatives of the genus in Argentina and the former was also the only species recorded from the Paraná river in the country. Recent collection campaigns at Paraná River in Argentina allowed us to identify for the first time the presence of Megaleporinus piavussu.
Science and Innovations for Food Systems Transformation
Resilience at the individual, community, government and global food system levels must be built i... more Resilience at the individual, community, government and global food system levels must be built in such a way that the economic, social and environmental bases to generate food security and nutrition for current and future generations are not compromised anywhere in the world. We present opportunities for diversification of production, diversification at the household level, and diversification through the global, regional and local trading systems for resilient food systems. There are a number of trade-offs which must be navigated as we strive to achieve greater food system resilience. These include the need to deliver short-term humanitarian aid without jeopardizing long run development, mitigation of rising global temperatures even as the food system adapts to the inevitable changes in the earth’s climate, taking advantage of the benefits of globalization while avoiding the downsides, and encouraging agricultural production and boosting rural incomes while also protecting the env...
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Papers by Mauricio Benitez