143,138 research outputs found
Desmacella stylostrongyla Nascimento & Pinheiro 2022, sp. nov.
No full textDesmacella stylostrongyla sp. nov. (Figures 1A–H) Type locality. Brazil, Bahia State (Mata de São João City). Type material. Holotype — UFBA 3774, off Mata de São João City (12°26’56.3”S 37°55’31.0”W) Bahia State, Brazil, 28 m depth, coll. Andrade, Walter (II.2004). Diagnosis. Desmacella with styles, two categories of sigma and raphides. External morphology (Fig. 1A). Massive sponge, 10 x 6 cm (length x width). Hispid and worn surface, with distinct oscules (3–6 mm in diameter), compressible consistency, but fragile and easy to tear. Colour light brown (fixed in ethanol 80%). Skeleton (Fig. 1B). Ectosomal skeleton without distinct spicule brushes, although individual spicules may pierce the dermal membrane heavily charged with sigmas. Choanosomal skeleton formed by large styles arranged in a halichondroid reticulation. Abundant sigmas randomly distributed. Raphides are dispersed in the choanosome and trichodragmas were observed in the secondary bundles (Fig 1H). Spicules (Figs. 1C–G; I). Styles I (170– 353.6 –460/5– 6.7 –10 µm, length/width, average in italic): straight to slightly curved. ranging from strongyloid, acerate, rounded and mucronate tips. Styles II (270– 365 –470/ 1.2– 2.4 –3.7 µm): slender, slightly curved to slightly sinuous. Sigmas I (45– 65 –90 µm, length): larger, thin, C- or S-shaped, abundant and with smooth ends. Sigmas II (12– 18.4 –30 µm): thin, C-or S-shaped and with smooth ends. Raphides (51– 72.2 –112.2 µm, length) in trichodragmas. Distribution. Only type locality: off Mata de São João City (Bahia State, the Northeast region of Brazil). Etymology. The species name is given due to the presence of styles varying to strongyles. Remarks. Desmacella stylostrongyla sp. nov. belongs to the genus Desmacella by the possession of styles and sigmas, and a skeleton consisting of plumose bundles of styles (Ridley & Dendy 1886). It differs from Desmacella species present in the Atlantic Ocean by combining stylote megascleres (varying to strongyles), two categories of sigmas and raphides. The new species differs from D. microsigmata Cavalcanti, Santos & Pinheiro, 2015, D. tylovariabilis Cavalcanti, Santos & Pinheiro, 2015, D. annexa Schmidt, 1870, D. digitata (Lévi, 1960), D. grimaldii (Topsent, 1890), D. informis (Stephens, 1916), D. infundibuliformis (Vosmaer, 1885), D. inornata (Bowerbank, 1866), D. jania Verrill, 1907, D. meliorata Wiedenmayer, 1977, D. peachi Ferrer-Hernandez, 1914, D. pumilio Schmidt, 1870, D. suberitoides (Burton, 1932), D. topsenti (Burton, 1930), D. vagabunda Schmidt, 1870, D. vestibularis (Wilson, 1904) and D. vicina Schmidt, 1870 by the presence of styles instead of tylostyles. Additionally, D. microsigmata, D. tylovariabilis. D. digitata , D. grimaldii, D. informis, D. infundibuliformis, D. inornata , D. jania , D. meliorata , D. pumilio , D. suberitoides , D. topsenti, D. vagabunda, D. vestibularis and D. vicina don’t have raphides, which are observed in the new species. Desmacella polysigmata Van Soest, 1984 that occurs in the Caribbean Sea (Belize) is the most similar species to Desmacella stylostrongyla sp. nov., because it has stylote megascleres varying to strongyles and two categories of sigma (Van Soest 1984). However, D. polysigmata has larger and robust styles (10– 15.2 –19 µm versus 5– 6.7 –10 µm in D. stylostrongyla sp. nov.), and sigmas I and II with half of the length (30– 37.3 –42 µm and 10– 11.6 –15 µm versus 45– 65 –90 µm and 12– 18.4 –30 µm) (Cavalcanti et al. 2015: 367–368). Additionally, toxiform microxeas are absent in D. polysigmata (Van Soest 1984).Published as part of Nascimento, Elielton & Pinheiro, Ulisses, 2022, A new species of Desmacella Schmidt, 1870 (Porifera, Demospongiae, Desmacellidae) from the Northeast region of Brazil, pp. 143-146 in Zootaxa 5190 (1) on pages 143-145, DOI: 10.11646/zootaxa.5190.1.7, http://zenodo.org/record/712001
Tosanoides aphrodite Pinheiro, C. Rocha
No full textTosanoides aphrodite Pinheiro, C. Rocha, & L. A. Rocha, 2018 Holotype: CIUFES 3444, 56.8 mm SL, male. Type locality: Saint Paul’s Rocks, Brazil; 00°56′ N, 29°22′ W, depth 120 meters. Illustrations: Pinheiro, C. Rocha, & L. A. Rocha, 2018, figs. 1–4. Counts: D: X, 15 or 16. A: III, 9. P: 14 or 15. C: 13 (7 + 6) branched. V: 27 (10+ 17). GR: 30 (8 + 22). LL: 32 to 35. Distribution: known only from the type locality, off Saint Paul’s Rocks, Brazil.Published as part of Anderson, William D., 2022, Additions and emendations to the annotated checklist of anthiadine fishes (Percoidei: Serranidae), pp. 567-578 in Zootaxa 5195 (6) on page 575, DOI: 10.11646/zootaxa.5195.6.5, http://zenodo.org/record/722395
Aplysina muricyana Pinheiro, Hajdu & Custódio, 2007, sp.n.
No full textAplysina muricyana sp.n. (Fig. 16 D, 17 C–F, 20, Tab. X) Aplysina sp. sensu Neves & Omena (2003) Holotype: MNRJ 6196, Laguna (Reserva Biológica do Atol das Rocas, RN) E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 25 /VIII/ 2002. Paratypes: Reserva Biológica do Atol das Rocas (RN) - MNRJ 2139, Salão (ca. 03º 52 ' 52 '' S – 33 º 48 ' 51 '' W), 4 m depth, G. Muricy coll., 28 /II/ 1999. MNRJ 2168, Piscina do Barretão, 3 m depth, F. Moraes coll., 01/ III/ 1999. MNRJ 2173, Fenda (03º 51 ' 18.6 '' S – 33 º 47 ' 52.1 '' W), G. Muricy coll., 02/III/ 1999. MNRJ 6195, Laguna, E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 21 /VIII/ 2002. MNRJ 6197, E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 24 /VIII/ 2002. MNRJ 6198, Laguna, E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 21 / VIII/ 2002. MNRJ 6199, Salão, E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 30 /VIII/ 2002. MNRJ 6200– 6202, Fenda (03º 51 ' 20.1 '' S – 33 º 47 ' 50.2 '' W), E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 25 /VIII/ 2002, voucher. MNRJ 6203–6204, Piscina das Rocas, E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 24 /VIII/ 2002. MNRJ 6205, Laguna, E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 25 /VIII/ 2002. MNRJ 6301, Piscina das Rocas, E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 24 /VIII/ 2002. MNRJ 6364, Fenda (03º 51 ' 20.1 '' S – 33 º 47 ' 50.2 '' W), E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 27 /VIII/ 2002. MNRJ 6663, Piscina das Âncoras (03º 52 ' 31.5 '' S – 33 º 48 ' 20.8 '' W), E. Hajdu, M.V. Oliveira and U. Pinheiro coll., 31 /VIII/ 2002. Additional material: Reserva Biológica do Atol das Rocas (RN) - MNRJ 4493, 4494, Salão (ca. 03º 52 ' 52 '' S – 33 º 48 ' 51 '' W), G. Neves coll., XI/ 1999. MNRJ 4502, Fenda, G. Neves coll., XI/ 1999. Diagnosis: Irregular polygonal tubes, laterally anastomosed, predominantly beige in vivo. Colour ranging from bright pale-yellow to dark reddish-brown. Description of the species: Specimens are composed of laterally anastomosed tubes with an irregular polygonal outline, in creeping groups of up to 45 tubes, with clusters having a maximum of 36 cm in length and 3 cm in width. The polygonal outline results from discrete edges extending upwards from the base of the sponge on its free sides (Figs. 17 C–F, 20 A–B). Some short tubes are projected from the base in varied directions. The surface is finely conulose. The sponge possesses large pseudoscula, frequently apical or pseudo-apical (eccentric), varying from 0.5 cm to 1 cm in diameter, small oscula on the tubes’ outer sides being also visible. In specimen MNRJ 2139, oscula have an iris-type diaphragm. The predominant colour in vivo is beige, specimens with green, brown, brownish-beige and red tinges being also common. After preservation in ethanol specimens vary from beige to brown. Consistency is soft. Skeleton: Choanosome with a delicate and irregular network of spongin fibers (Figs. 20 C–D) with amber colour bark 38–126 Μm thick (average 72 Μm) and a thick pith that can be black or amber 8 to 50 Μm (average 29 Μm; Fig. 20 E). The presence of spongin fibers wrapped and excavated by filamentous structures, possibly fungi, was observed in some specimens as in Aplysina pseudolacunosa sp.n. TABLE X: Spongin fibres’ measurement data for Aplysina muricyana sp.n. (in micrometers; S.D. = Standard Deviation and N= 30). Specimens Locality* Fibers Piths Thinnest Mean Thickest S.D. Thin- Mean Thickest S.D. nest Holotype Atol das Rocas, RN 51.3 75.2 117.3 12.3 11.3 17.4 27.6 3.4 MNRJ 6196 Paratype Atol das Rocas, RN 50.0 84.2 126.3 18.6 12.5 16.4 22.5 3.0 MNRJ 2139 Paratype Atol das Rocas, RN 52.5 73.8 91.3 9.0 12.5 19.3 28.8 3.8 MNRJ 2168 Paratype Atol das Rocas, RN 41.3 74.5 105.0 16.7 10.0 14.9 28.8 4.1 MNRJ 2173 MNRJ 4493 Atol das Rocas, RN 42.5 65.3 83.8 9.8 12.5 18.2 25.0 4.2 Distribution: Provisionally known only from the type locality, Atol das Rocas (RN, Brazil; Fig. 16 D). Ecology: All specimens were collected in shallow-waters at Atol das Rocas, inside large crevices, and the species is thus considered to be sciaphilous. Inside the atoll, depth of occurrence was limited to 5 m, but outside the atoll ring, specimens were seen down to 15 m. Specimens in darker areas were completely beige, and those more exposed to light, more intensely pigmented with darker colours, as a likely consequence of association with cyanobacteria. Etymology: The name of the species honours Dr. Guilherme Muricy, for his pioneering studies on the taxonomy of Atol das Rocas sponges, who also collected many of the specimens studied here. Remarks: The species which appear closest to A. muricyana sp.n are A. insularis and A. pseudolacunosa sp.n. described below. Another similar species is A. fistularis, which presents tubes of distinct morphology, never forming the large, frequently creeping clusters so frequently observed in the new species. Tubes in A. fistularis, albeit varied as regards length, as well as number and size of projections, were never seen to have a polygonal cross section. The possibility that A. muricyana sp.n. could be nothing but an ecomorph of a well established species appears quite unlikely, as dives performed on the outer ring of Atol das Rocas, down to 15m depth, failed to reveal any additional Aplysina species. Rather, the same A. muricyana sp.n. was present inside somewhat deeper crevices (10–15 m depth). Another species which also presents anastomosed tubes is A. insularis. However, A. insularis has soft and stout tubes, with yellow or brown colour in vivo turning black after preservation. In contrast, A. muricyana sp.n. has hard, much less stouter polygonal tubes, with variable colour in vivo and brown or beige colour after preservation. Comparison with A. pseudolacunosa sp.n. will be provided below.Published as part of Pinheiro, Ulisses Dos S., Hajdu, Eduardo & Custódio, Márcio R., 2007, Aplysina Nardo (Porifera, Verongida, Aplysinidae) from the Brazilian coast with description of eight new species, pp. 1-51 in Zootaxa 1609 on pages 36-39, DOI: 10.5281/zenodo.17887
Ephydatia caatingae Nicacio & Pinheiro, 2015, sp. nov.
No full textEphydatia caatingae sp. nov. (Figures 6 and 7, Table 1) Material studied. Holotype: Poço Verde Pond, Orobó, Pernambuco, Brazil, 7 ° 44 ' 10.7 "S 35 ° 32 ' 35.8 "W, UFPEPOR 1733, coll. U. Pinheiro, 17.ix. 2013. Paratype: Poço Verde Pond, Orobó, Pernambuco, Brazil, 7 ° 44 ' 10.7 "S 35 ° 32 ' 35.8 "W, UFPEPOR 1736, coll. U. Pinheiro, 17.ix. 2013. Comparative material: Ipanema River, Santana do Ipanema, Alagoas, Brazil, 9 º 21 ' 52.8 ''S 37 º 15 ' 28.4 ''W, UFPEPOR 1402, coll. G. Nicacio, 15.xii 2012. Poço Verde Pond, Orobó, Pernambuco, Brazil, 7 ° 44 ' 10.7 "S 35 ° 32 ' 35.8 "W, UFPEPOR1403, 1404, coll. L. R. C. Lima, 29.ix. 2012; UFPEPOR 1737, 1740, 1742, 1744, coll. U. Pinheiro, 17.ix. 2013. Etymology. The epithet is related to the type locality, Caatinga Brazilian biome, where specimens were found. Diagnosis. Ephydatia species characterized by birotules as gemmuloscleres with strongly incised rotules and smooth or spined shaft, with secondary spines. Type locality. Brazil, Pernambuco, Orobó, Poço Verde Pond (7 ° 44 ' 10.7 "S 35 ° 32 ' 35.8 "W). Holotype UFPEPOR 1733. General morphology. Encrusting sponge with reticulated surface. Measuring 1cm in thickness and 12cm in diameter. Green colour (Fig. 6 a). Consistency of live sponge is fragile and brittle, paucispicular skeleton, spongin abundant. Spicules. Megascleres spined or smooth oxeas (267–302.2 – 332 / 10– 14.4 – 17 µm), slender and slightly curved (Fig. 7 a). Microscleres absent. Gemmuloscleres birotules (32–40 – 48 / 5- 7.1 - 8 / 15-21.3 – 25 µm), smooth or spined shaft, with secondary spines (spines ornamented by microspines). The rotules are strongly incised (Fig. 7 b). Gemmules scattered, hemispherical, averaging 275-351 - 387 µm in diameter. Gemmular theca tri-layered with well-developed pneumatic layer of irregular spongin chambers and gemmuloscleres are radially embedded in the outer and pneumatic layers (Fig. 7 c,d). Comparative material. General morphology. Encrusting sponge with 1cm thickness and averaging 20cm in diameter. The colour is green when the sponges are exposed to sunlight and beige in sciaphilous habitats (Fig. 6 b). Spicules are of the same morphology as described in the holotype. Megascleres (250–307.8 – 362 / 9–13.9 – 18 µm), Microscleres absent. Gemmuloscleres (32–43.8 – 55 / 5-7.5 - 10 / 15-22.5 – 26 µm). Gemmules averaging 262-343 - 450 µm in diameter. Distribution and ecological notes. The new species is so far recorded from Pernambuco and Alagoas states of Brasil. The region where this species was found is characterized by environments with low rainfall and a semi-arid climate. Specimens were collected on rocky substrate and tree trunks in shallow water. Gemmules were often abundant. Green specimens in symbiosis with algae were found living exposed to sunlight. Remarks. The cosmopolitan genus Ephydatia is widely distributed throughout the Northern Hemisphere, but it is also has scattered records from Southern Hemisphere (Manconi and Pronzato 2007). This supposed wide distribution might be due to the existence of a species-complex suggested for widespread species. From the Neotropical Region there is only one record so far, viz. Ephydatia facunda Weltner, 1895. This species has a supposed widespread distribution from the Caribbean to southern Brazil. Manconi & Pronzato (2005) recorded E. facunda from Cuba and expanded its distribution in South America, previously only known from Brazil. However, the specimens from Cuba have remarkable morphological divergences compared to the Brazilian specimens (De Rosa-Barbosa 1984, Volkmer-Ribeiro et al. 1988, Volkmer- Ribeiro & Tavares 1990, Pinheiro et al. 2004, Volkmer-Ribeiro & Machado 2007). Ephydatia facunda from Cuba is characterized by having minute gemmules and gemmuloscleres smaller than those of the Brazilian specimens (Tab. 1). The main morphological divergence among descriptions of these disjunct populations concerns the remarkable differences of gemmulosclere shape with thin smooth shaft. In fact, notable differences between specimens of E. facunda and their widespread distribution suggest the existence of a speciescomplex. The specimens studied here exhibit morphological differences from the other South American Ephydatia species that justify the proposal of a new species. Compared to Ephydatia facunda, the closest species geographically, it presents a different morphology of the birotule gemmuloscleres. Ephydatia facunda has shallowly incised rotules with the spines on the shaft being simple and sharp, compared to the strongly incised rotules and composite spines in Ephydatia caatingae sp. nov. Additionally, in gemmules, the gemmuloscleres are more densely distributed in Ephydatia facunda than in Ephydatia caatingae sp. nov. (Fig. 7 c,d). Despite the fact that fossil species, Ephydatia chileana Pisera & Sáez, 2003 shared incised rotules with Ephydatia caatingae sp. nov., its spines of the shaft are simple against the composite spines of the new species. Five species of Ephydatia are known from North America: E. fluviatilis (Linnaeus, 1758), E. millsii (Potts, 1887), E. mulleri (Lieberkühn, 1855), E. robusta (Potts, 1887), and E. subtilis Weltner, 1895. Among these species, only E. robusta has spines on the shaft of birotules, thus being the closest species to Ephydatia caatingae sp. nov.; however, the spines of the shaft are simple against the composite spines of the new species. Species/ Specimens Locality Megasclere Gemmulosclere (*)Values are in µm and expressed as shortest length–mean length–longer length/thinner thickness–mean thickness–widest thickness. where appropriate; (1) Weltner (1895); (2) Gee (1930); (3) De Rosa-Barbosa (1979); (4) Penney & Racek (1968); (5) Pinheiro et al (2004); (6) Manconi & Pronzato (2005); (7) Pisera & Saez (2003); (8) Present Work. Poirrier (1974) experimented with Ephydatia fluviatilis in different enviromental conditions and proposed that this species had a huge ecomorphic variation related to the prevailing habitat. At that time, he proposed E. robusta as synonym of Ephydatia fluviatilis and suggested this species was truly cosmopolitan, drawing attention to the true geographic variation which is usually masked by the high adaptive ecomorphic variation exhibited in its spicules. On the other hand, this recommendation is not being followed, because Poirrier (1982) and van Soest et al. (2015) have considered E. robusta as valid species. It is possible that some species may have an ecomorphic variation that makes it difficult to take a taxonomic decision. However, we can not generalize this feature for all freshwater sponge species that have alleged widespread distributions. Taxonomic works (revisions) and taxonomists of freshwater sponges are scarce, both of which are necessary to solve this problem. For example, Pinheiro (2007) verified that only three species (6 %) of freshwater sponges recorded from Brazil are not endemic to South America (Tubella pennsylvanica (Potts, 1882), Eunapius fragilis (Leidy, 1851) and Heteromeyenia stepanowii (Dybowski, 1884)), but all of these have few and simple spicules and have not been revised. This low number suggests that species identified as allegedly widespread might be directly related to the paucity of morphological distinctness of characters under study. There is still a difficulty in recognizing species complex and it is possible that certain species can lead to misinterpretation of alleged cosmopolitanism. New experimental works are necessary to find any real clear-cut distinction between ecomorphic variation and speciation in such sponges.Published as part of Nicacio, Gilberto & Pinheiro, Ulisses, 2015, Biodiversity of freshwater sponges (Porifera: Spongillina) from northeast Brazil: new species and notes on systematics, pp. 220-240 in Zootaxa 3981 (2) on pages 227-230, DOI: 10.11646/zootaxa.3981.2.4, http://zenodo.org/record/24208
Plectranthias polygonius Shepherd, Phelps, Pinheiro, Rocha, & Rocha 2020
No full textPlectranthias polygonius Shepherd, Phelps, Pinheiro, Rocha, & Rocha, 2020 Holotype: CAS 247193, field code HTP906, GenBank MN 922331, 29.5 mm SL. Type locality: Tahiti, French Polynesia, 17°29′27″S, 149°28′01″W, depth 105 meters. Illustrations: Shepherd, Phelps, Pinheiro, Rocha, & Rocha, 2020, figs. 1 & 2A. Counts: D: X, 16. A: III, 7. P: 14. C: 17 (9 + 8). V: 26 (10+ 16). S: 3. GR: 18 or 19 (5 or 6 + 13). LL: 27 to 30. CP: 10 or 11. Distribution: Tahiti, French Polynesia, and Maloelap Atoll, Republic of the Marshall Islands.Published as part of Anderson, William D., 2022, Additions and emendations to the annotated checklist of anthiadine fishes (Percoidei: Serranidae), pp. 567-578 in Zootaxa 5195 (6) on page 572, DOI: 10.11646/zootaxa.5195.6.5, http://zenodo.org/record/722395
The race to institutional change: the slow road to policy change in sexuality education
No full textThe controversial and politicized nature of sexuality and the plurality of actors and interests involved make sexuality education an inherently complex public policy issue. This paper employs the Advocacy Coalition Framework (ACF) to unpack how an advocacy coalition influenced the sexuality education policymaking process in Norway (2006-2018). The study examines the interconnections between actors' beliefs, goals, and strategies in the policy subsystem. Interviews with key actors and an analysis of policy documents reveal the central role played by knowledge and policy entrepreneurs in shaping change trajectories via policy learning and professional forums. Static, formal, and informal institutions constituted hindering factors to policy change. The study suggests that evidence production and sharing are essential to framing the policy problem. It identifies civil society organizations and bureaucrats as central knowledge producers and promoters. This paper also highlights policy actors' proactive agency in exploiting windows of opportunity and effecting institutional change
Luzonichthys kiomeamea Shepherd, Pinheiro, Phelps, Perez-Matus, & Rocha 2019
No full textLuzonichthys kiomeamea Shepherd, Pinheiro, Phelps, Pérez-Matus, & Rocha, 2019 Holotype: CAS 244640, 45.7 mm SL. Type locality: Hanga Piko, Rapa Nui (Easter Island); 27°9′12″ S (-27.15333°), 109°26′52″ W (-109.44778°), depth 83 meters. Illustrations: Shepherd, Pinheiro, Phelps, Pérez-Matus, & Rocha, 2019, figs. 1–4 Counts: D: X, 16. A: III, 7. P: 22. C: 15 (8+ 7). V: 26 (11+ 15). S: 0. GR: 38 (12 + 26). LL: 64. CP: 28. Distribution: known only from the type locality, off Easter Island.Published as part of Anderson, William D., 2022, Additions and emendations to the annotated checklist of anthiadine fishes (Percoidei: Serranidae), pp. 567-578 in Zootaxa 5195 (6) on page 568, DOI: 10.11646/zootaxa.5195.6.5, http://zenodo.org/record/722395
Radiospongilla inesi Nicacio, Severi & Pinheiro, 2011, sp. nov.
No full textRadiospongilla inesi sp. nov. Nicacio & Pinheiro (Figs 1–4) Holotype. UFPEPOR 935. Recife, Parque Estadual Dois Irmãos, Riacho do Prata, Pernambuco State, Brazil, 8 ° 1 ' 9.40 "S, 34 ° 56 ' 39.93 "W, coll. Nicacio, G. 29 /X/ 2009. Type locality. Brazil, Northeast Region, Eastern North Atlantic Basin, Pernambuco. Paratypes. Recife, Parque Estadual Dois Irmãos, Riacho do Prata, Pernambuco State, Brazil, 8 ° 1 ' 9.40 "S, 34 ° 56 ' 39.93 "W. 20 /V/ 2007 coll. Severi, W. UFPEPOR 674; 11 /XII/ 2009 coll. Pinheiro, U.S. UFPEPOR 940; 16 / XII/ 2009 coll. Nicacio, G. UFPEPOR 944; 16 /XII/ 2009 coll. Nicacio G., MNRJ 14746; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 948; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 949; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 950; 06/IV/ 2010 coll. Nicacio, G., UFPEPOR 1091; 06/IV/ 2010 coll. Nicacio, G., UFPEPOR 1092; 06/IV/ 2010 coll. Nicacio, G., UFPEPOR 1093. Additional material. Recife, Parque Estadual Dois Irmãos, Riacho do Prata, Pernambuco State, Brazil, 8 ° 1 ' 9.40 "S, 34 ° 56 ' 39.93 "W. 23 /X/ 2009 coll. Pinheiro, U.S. UFPEPOR 932; 23 /X/ 2009 coll. Pinheiro, U.S. UFPEPOR 934; 11 /XII/ 2009 coll. Pinheiro, U.S. UFPEPOR 936; 11 /XII/ 2009 coll. Pinheiro, U.S. UFPEPOR 937; 11 /XII/ 2009 coll. Pinheiro, U.S. UFPEPOR 938; 11 /XII/ 2009 coll. Pinheiro, U.S. UFPEPOR 939; 16 /XII/ 2009 coll. Nicacio, G. UFPEPOR 942; 16 /XII/ 2009 coll. Nicacio, G. UFPEPOR 946; 16 /XII/ 2009 coll. Nicacio, G. UFPEPOR 947; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 952; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 953; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 954; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 955; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 956; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 957; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 958; 11 /I/ 2010 coll. Nicacio, G., UFPEPOR 959; 06/IV/ 2010 coll. Nicacio, G., UFPEPOR 1094. FIGURE 1. Map of the geographic distribution and of the type locality of Radiospongilla inesi sp. nov. from Recife, Pernambuco State (in detail), Brazil (8 ° 1 ' 9.40 "S, 34 ° 56 ' 39.93 "W) FIGURE 2. Radiospongilla inesi sp. nov. in situ from Recife, Pernambuco State, Brazil (8 ° 1 ' 9.40 "S, 34 ° 56 ' 39.93 "W). FIGURE 3. Radiospongilla inesi sp. nov. from Recife, Pernambuco State, Brazil (8 ° 1 ' 9.40 "S, 34 ° 56 ' 39.93 "W) Holotype UFPEPOR 935 (Coleção de Porifera da Universidade Federal de Pernambuco) SEM illustration of spicules and gemmule: a) Megasclere oxea b) Detail of the center of megasclere oxea c–d) Gemmosclere acanthostrongyle e) Gemmule f) Detail of the surface of the gemmule g) Detail of the gemmoscleres radially embedded. Other material examined. Holotype of Radiospongilla amazonensis Volkmer-Ribeiro & Maciel, 1983 (MNRJ 0088). Diagnosis. Radiospongilla with megascleres oxeas microspined at middle of the axis or rarely smooth (15 %), microscleres absent, gemmoscleres acanthostrongyles strongly spined (n= 47–55 – 68), with straight and sharply pointed spines uniformly distributed along the axis, terminal spines with curved tips toward to the middle of axis, without formation of pseudorotules. Description of holotype. UFPEPOR 935 is encrusting, about 7 cm in diameter and 2 cm thickness, with one large and conspicuous osculum. Color is yellowish in vivo and light-brown after fixed in ethanol. Surface hispid. Megascleres oxeas slightly curved, microspined at the middle of the axis or rarely smooth (240–271.68 – 312 / 9– 11.1 – 15 µm), microscleres absent, gemmoscleres acanthostrongyles (66–70.74 – 78 / 3–3.68 – 4 µm). Description. Sponge ranging from volcano-shaped, encrusting or massive, with a large conspicuous osculum and/or scattered small oscula (Fig. 2 a–c). It has a maximum thickness of 3 cm and 40 cm of diameter. Color yellowish in vivo and light-brown after fixed in ethanol. Body is soft to very fragile. Surface hispid. Anisotropic skeleton with multispicular bundles connected by abundant spongin. Megascleres oxeas (228–260 – 288 / 9–12 µm) fusiform, straight or slightly curved, microspined at the middle of axis or rarely (15 %) smooth (Fig. 3 a; Fig. 4 a–d). Microscleres absent. Gemmules abundant, yellowish, spherical, free, scattered or clustered at the base of sponge (300–338 – 384 µm). Foramen tubular single and without a collar. Gemmular theca tri-layered with gemmoscleres radially embedded. Outer layer with protruding distal apices of the gemmoscleres. Pneumatic layer well developed network of irregular spongin fibers. Inner layer of sublayered compact spongin (Fig. 3 e–g). Gemmoscleres acanthostrongyles (51–69 – 78 / 3–3.2 – 4 µm) straight, strongly spined (n= 47–55 – 68), radially embedded in gemmules (Fig. 3 c–g; Fig. 4 e–g). The spines of gemmoscleres along the axis are straight and sharp, uniformly distributed, however the terminal spines have curved tips toward the middle of axis. The spines along the axis are larger than the spines of the extremities and do not form pseudorotules. Free gemmoscleres can also be found in the symplasm, identical to those embedded in gemmules. FIGURE 4. Radiospongilla inesi sp. nov. from Recife, Pernambuco State, Brazil (8 ° 1 ' 9.40 "S, 34 ° 56 ' 39.93 "W) Light microscopy illustration of megascleres and gemmoscleres: a–b) Smooth oxea megascrele (UFPEPOR 944 and UFPEPOR 1091, respectively) c–d) Spiny oxea megasclere (UFPEPOR 959) e–g) Gemmosclere acanthostrongyle (UFPEPOR 944, UFPEPOR 959 and UFPEPOR 1091, respectvely). Ecology. The specimens were collected on the concrete substrate in perennial shallow waters environments, ponds and streams, depth ranging from 5 cm to 2 m, located at Parque Estadual Dois Irmãos, an urban remnant of Atlantic Forest. The area has approximately 387.4 ha, with undulating topography and altitudes ranging from 10 to 100 m. The climate is Tropical wet and dry (As), following The Köppen Climate Classification for coastal regions of Northeastern Brazil. This region is hot and humid, with annual medium precipitation 2,460 mm and monthly average temperatures above 23 ° C (Machado et al., 1998). Within the specimens were found Chironomids associated to sponges. Etymology. The species is dedicated to Dr. Inês Ezcurra de Drago, for her great contribution to the knowledge of freshwater sponges from South America. Remarks. Radiospongilla inesi sp. nov. is allocated to Radiospongilla on the basis of its anisotropic multispicular choanosomal skeleton, gemmoscleres as acanthostrongyles radially embedded on the gemmules and the lack of microscleres. The specimens studied here exhibit morphological differences from the other South American species that justify the proposal of a new species. Compared with Radiospongilla amazonensis, which has megascleres as thicker oxeas and strongyles, this new species has only one category of megasclere which is on average also thinner than those of R. amazonensis (Table 1). The ends of oxea megascleres of R. amazonesis are slightly rounded and abruptly pointed (and hence listed as strongyles in Table 1), in contrast to those of R. inesi sp. nov. which are fusiform, sharply pointed oxeas (Fig. 3 a; Fig. 4 a–d). Moreover, R. amazonensis has gemmoscleres strongly spined at the extremities while in R. inesi sp. nov. the spines are uniformly distributed along the axis and also more abundant (Table 1). Radiospongilla crateriformis is the most similar species of Radiospongilla to the new species. Although that species possesses microspined oxea megascleres, it does not present smooth megascleres like R. inesi sp. nov. The main difference between these two species is the morphology of gemmoscleres. Radiospongilla. crateriformis displays curved spines and which are more concentrated at the extremities, giving appearance of pseudorotules, these gemmoscleres do not show a developed rotule but a group of curved hooks radiating from the apices of the shaft (Potts, 1887, Plate X, Fig.V; Bass & Volkmer-Ribeiro, 1998, Fig. 2–3). However, R. inesi sp. nov. has spined extremities curved only at the tips and the spines along the axis are uniformly distributed and in greater number, as well the middle spines are larger than the extremities spines (Fig. 3 c–e, 4 e–g).Published as part of Nicacio, Gilberto, Severi, William & Pinheiro, Ulisses, 2011, New species of Radiospongilla (Porifera: Spongillidae) from Brazilian inland waters, pp. 56-63 in Zootaxa 3132 on pages 58-62, DOI: 10.5281/zenodo.20738
Pastoreio racional voisin: uma opção também no manejo de pastagens em grande áreas.
No full textTCC (graduação) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Curso de Agronomia.Acreditando que é possível a criação animal de forma ecológica e economicamente sustentáveis, além do crescente aumento do mercado mundial para produtos de origem sustentável e que prezem o respeito ao ambiente e bem-estar animal, realizou-se o Estágio de Conclusão de Curso de Agronomia da Universidade Federal de Santa Catarina acompanhando as atividades diárias de uma fazenda onde o Pastoreio Racional Voisin é utilizado como base no manejo da pastagem e dos animais. A Fazenda Margarida, no estado do Paraná, foi a escolhida para a realização do estágio, uma vez que trabalha com o Pastoreio Racional Voisin em grande escala, além de utilizar este sistema desde 2003, ou seja, os funcionários e o proprietário tem pleno domínio da técnica utilizada. É importante ressaltar que o projeto de Pastoreio Racional Voisin da Fazenda Margarida foi concebido pelos professores Luiz Carlos Pinheiro Machado e Luiz Carlos Pinheiro Machado Filho
Techniques and key points for endoscopic cranial base reconstruction/ Carlos Pinheiro-Neto, Maria Peris-Celda.
No full text"Due to close collaboration between otorhinolaryngologists and neurosurgeons, endoscopic endonasal brain surgery has become part of the surgical armamentarium for successful treatment of various cranial base pathologies. Today, it is considered the gold standard surgical technique for many types of skull base tumors. Techniques and Key Points for Endoscopic Cranial Base Reconstruction by pioneering otorhinolaryngologist Carlos D. Pinheiro-Neto and neurosurgeon Maria Peris-Celda, co-editor of Thieme's acclaimed Rhoton's Atlas of Head, Neck, and Brain, encompasses the most important endoscopic cranial base reconstruction techniques performed in the last two decades. The book features contributions from an impressive group of additional experts in this field."--Provided by publisher1 online resourc
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