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Search Results: 1 - 10 of 473573 matches for " Petr?nio A.; "
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Descri??o de Austinixa bragantina sp. nov. (Crustacea, Decapoda, Pinnotheridae) do litoral do Pará, Brasil
Coelho, Petrnio A.;
Revista Brasileira de Zoologia , 2005, DOI: 10.1590/S0101-81752005000300004
Abstract: austinixa bragantina sp. nov., found in pará coast associated with the callianassid lepidophthalmus siriboia felder & rodrigues, 1993 and callichirus major (say, 1818), is described.
Crustáceos decápodos associados a esponjas no litoral do Estado do Ceará, Brasil
Bezerra, Luis E. A.;Coelho, Petrnio A.;
Revista Brasileira de Zoologia , 2006, DOI: 10.1590/S0101-81752006000300012
Abstract: the aim of this article was to report on the sponge-dwelling crustaceans collected through scuba diving at " parque estadual marinho pedra da risca do meio" fortaleza, ceará, brazil. nine species of sponges were collected and fourteen crustaceans were identified. the alpheidae family was the most abundant with six species, followed by the families mithracidae and porcellanidae with two species and palaemonidae, pilumnidae, pseudorhombilidae and xanthidae with one species. the species nanoplax xanthiformis (a. milne edwards, 1880), synalpheus hemphilli coutière, 1909, s. minus (say, 1818), s. sanctithomae coutière, 1909 and petrolisthes rosariensis werding, 1978 have their distribution expanded in the brazilian coast.
Intraspecific variation in preserved specimens of the fiddler crabs Uca panacea and Uca pugilator (Decapoda: Ocypodidae)
Bezerra, Luis E. A.;Coelho, Petrnio A.;
Zoologia (Curitiba) , 2009, DOI: 10.1590/S1984-46702009000100024
Abstract: the fiddler crabs uca panacea novak & salmon, 1974 and uca pugilator (bosc, 1802) are closely related north american species that are sympatric along the north coast of gulf of mexico. since u. panacea was described, there has been confusion in the identification these two species. morphological differences between these two fiddlers have been pointed out in recent years, mainly regarding the presence of a pigment spot and granulations on the dorsal margin of carapace in u. pugilator. we report herein some intraspecific differences between the two species that we believe to be useful in avoiding misidentification among preserved specimens of these two fiddler crabs, such as the absence of the pigment spot in u. pugilator and the presence of the pigment spot and granulations on dorsal margin of carapace in u. panacea as well. our results have also revealed that 65% of the u. pugilator specimens examined possess a gape pile in the major chela, which is not a reliable diagnostic character, but could be useful when present. the gonopods of both species were analyzed using sem, confirming the previous statement that the sub-terminal thumb is shorter in u. panacea than in u. pugilator. finally, as important morphological characters are missing in the original description of u. panacea, a redescription of this species is also provided.
Determina??o da maturidade sexual de Ucides cordatus (Crustacea, Brachyura, Ucididae) em duas áreas de manguezal do litoral sul de Pernambuco, Brasil
Castiglioni, Daniela da S;Coelho, Petrnio A;
Iheringia. Série Zoologia , 2011, DOI: 10.1590/S0073-47212011000100020
Abstract: this study aims to determine the size at morphological and physiological maturity of males and females at two populations of ucides cordatus (linnaeus, 1763) from tamandaré, pernambuco, brazil. crabs were sampled monthly from april 2008 to march 2009 at the ariquindá and mamucabas mangroves by professional crab catchers during ebb tide in three replicates (25 m2 each, 20 m between plots). crabs collected were sexed and measured (carapace width, cheliped propodus length of males and abdomen width of the fifth somite of females). besides, the crabs were characterized according its gonad development stage. for the physiological maturity determination, crabs were arranged in two groups: juvenile crabs (specimens that showed immature and rudimentary gonads) and adult crabs (specimens with gonads at the stages classified as developing, developed, advanced or spent). the carapace width size in which 50% of males and females were considered morphologically mature was 38.0 and 35.4 mm (ariquindá) and 37.3 and 32.9 mm (mamucabas), respectively. therefore, the size at physiological maturity of males and females occurred with 38.5 and 37.8 mm (ariquindá) and 36.2 and 35.8 mm, respectively (mamucabas). males attain morphological maturity at a higher size than females, probably due to a major investment in their somatic growth, while females spend their energy in the reproductive process. crabs from mamucabas mangrove attained sexual maturity at smaller sizes than ariquindá, probably because the more impacted situation of the primer mangrove.
Estuarine and marine brachyuran crabs (Crustácea: Decapoda) from Bahía, Brazil: checklist and zoogeographical considerations
Almeida,Alexandre O. de; Coelho,Petrnio A;
Latin american journal of aquatic research , 2008,
Abstract: the coast of the state of bahia in eastern brazil comprises more than 12% of tire entire brazilian coast. however, the crustacean fauna of this area still remains poorly known, especially the shallow-water fauna. we provide here a list of 162 brachyuran crustaceans known for the bahia coast, based on published records as well as material deposited in the carcinological collection of the universidade estadual de santa cruz, ilhéus, bahia. the list includes estuarine and marine species (from coastal beaches to the continental shelf and slope) that have been reported at least once in the study area. regarding longitudinal distribution patterns, five species are circum-tropical, nine are amphi-atlantic, and two are amphi-american. the portunid charybdis hellerii (a. milne-edwards, 1867) is an introduced indo-west pacific species. the remaining 145 species are native to the western atlantic; 17 of these are endemic to brazil. a total of 46 species (28.4%) have the southernmost limit of their known ranges in the western atlantic between bahia and the state of rio de janeiro, which suggests, for this group, the existence of a wide transition area between the brazilian and paulista zoogeographic provinces. finally, two small range extensions in the western atlantic are reported: the hymenosomatid elamena gordonae monod, 1956 from camamu bay (13°54'14"s) to nova vicosa (17°53'00.9"s), and the sesarmid sesarma cura??oense de man, 1892 from ilhéus (15°04'58.6"s) to mucuri (18°05'38's).
The larval development of Pinnixa gracilipes Coelho (Decapoda, Pinnotheridae) reared in the laboratory
Lima, J? de F.;Abrunhosa, Fernando;Coelho, Petrnio A.;
Revista Brasileira de Zoologia , 2006, DOI: 10.1590/S0101-81752006000200023
Abstract: pinnixa gracilipes coelho, 1997 is a small pinnotherid crab living in association with ghost shrimp lepidophthalmus siriboia felder & rodrigues, 1993 in the northeastern region of pará state, brazil. larvae of p. gracilipes were reared in the laboratory from hatching to the megalopa stage. the complete zoeal period averaged 24 days. mean duration for each larval stage was 5, 4, 4, 5 and 6 days, respectively. in the present study, five zoeal and megalopal stages are described and illustrated in detail. morphological comparisons with previous reported works on pinnotheridae larvae are briefly discussed.
Zoneamento do estado de Pernambuco para cultivo de camar?es de água doce
Coelho, Petrnio Alves;Torres, Maria Fernanda A.;
Revista Brasileira de Zoologia , 1982, DOI: 10.1590/S0101-81751982000300003
Abstract: proper site selection is fundamental in the success of any aquiculture enterprise. to identify suitable areas for freshwater prawn culture in pernambuco, factors like elevation, relief, soil and climate were considered, in accordance with the species biology and pond construction. according to the established criteria, suitable, unsuitable and unfavorable areas, with some restrictions, were recognized. suitable areas for freshwater prawn culture in pernambuco are about 835 km2, representing 0.85% of the total area of the state.
Estuarine and marine brachyuran crabs (Crustácea: Decapoda) from Bahía, Brazil: checklist and zoogeographical considerations Cangrejos braquiuros estuarinos y marinos (Crustácea: Decapoda) de Bahia, Brasil: lista de especies y consideraciones zoogeográficas
Alexandre O. de Almeida,Petrnio A Coelho
Latin american journal of aquatic research , 2008,
Abstract: The coast of the state of Bahia in eastern Brazil comprises more than 12% of tire entire Brazilian coast. However, the crustacean fauna of this area still remains poorly known, especially the shallow-water fauna. We provide here a list of 162 brachyuran crustaceans known for the Bahia coast, based on published records as well as material deposited in the Carcinological Collection of the Universidade Estadual de Santa Cruz, Ilhéus, Bahia. The list includes estuarine and marine species (from coastal beaches to the continental shelf and slope) that have been reported at least once in the study area. Regarding longitudinal distribution patterns, five species are circum-tropical, nine are amphi-Atlantic, and two are amphi-American. The portunid Charybdis hellerii (A. Milne-Edwards, 1867) is an introduced Indo-West Pacific species. The remaining 145 species are native to the western Atlantic; 17 of these are endemic to Brazil. A total of 46 species (28.4%) have the southernmost limit of their known ranges in the western Atlantic between Bahia and the state of Rio de Janeiro, which suggests, for this group, the existence of a wide transition area between the Brazilian and Paulista zoogeographic provinces. Finally, two small range extensions in the western Atlantic are reported: the hymenosomatid Elamena gordonae Monod, 1956 from Camamu Bay (13°54'14"S) to Nova Vicosa (17°53'00.9"S), and the sesarmid Sesarma cura oense De Man, 1892 from Ilhéus (15°04'58.6"S) to Mucuri (18°05'38'S). La costa del Estado de Bahia, situado en el este de Brasil, comprende más del 12% de la costa brasile a. Sin embargo, la fauna de crustáceos de esta area aún se encuentra pobremente conocida, sobretodo aquella de aguas someras. Se presenta una lista de 162 especies de crustáceos braquiuros conocidos de esta costa, en base a registros publicados y al material depositado en la Colección Carcinológica de la Universidade Estadual de Santa Cruz, Ilhéus, Bahia. La lista incluye especies estuarinas y marinas (desde playas costeras hasta la plataforma continental y talud) que han sido reportadas por lo menos una vez para el area de estudio. En cuanto a los patrones de distribución longitudinal, cinco especies son circumtropicales, nueve anfi-Atlánticas, dos anfi-Americanas, y el portúnido Charybdis hellerii (A. Milne-Edwards, 1867) es una especie introducida, nativa del Indo-Pacífico oriental. Las restantes 145 especies son nativas del Atlántico occidental, 17 de las cuales son endémicas de Brasil. Un total de 46 especies (28.4%) tienen su límite sur de distribución en el Atlántico occident
Tissue distribution and deposition pattern of a cellulosic parenchyma-specific protein from cassava roots
Souza, Petrnio A.S.;Gomes-Filho, Enéas;Campos, Francisco A.P.;
Brazilian Archives of Biology and Technology , 1998, DOI: 10.1590/S1516-89131998000100001
Abstract: a protein with a molecular mass of 22kda was purified from the cellulosic parenchyma of cassava roots. the amino acid composition of the protein was determined and antibodies generated against the purified protein were used to show that the concentration of the protein remains unchanged during root "tuber" formation. by using a tissue printing technique, as well as western blot, it was shown that the cellulosic parenchyma was the only root tissue in which the protein was deposited.
Primeiro registro de Apiomithrax violaceus (A. Milne Edwards) e Hypoconcha arcuata Stimpson (Crustacea, Decapoda, Brachyura) para o litoral do Ceará, Brasil
Bezerra, Luis E. A.;Almeida, Alexandre O. de;Coelho, Petrnio A.;
Revista Brasileira de Zoologia , 2005, DOI: 10.1590/S0101-81752005000400017
Abstract: occurrence of the brachyuran crabs apiomithrax violaceus (a. milne edwards, 1868) (crustacea, decapoda, pisidae) and hypoconcha arcuata stimpson, 1858 (crustacea, decapoda, dromiidae) is reported for the coast of ceará, brazil northeast, for the first time. a. violaceus was collected in august 2004 at pedra rachada beach, paracuru, ceará (03o25's, 39o04'w), while h. arcuata was collected on the continental shelf, off fortaleza city (03o41's, 38o32'w). with the present record, the geographic range of a. violaceus, an amphi-atlantic species, is extended northward in the western atlantic. this species seems to be rare in northeastern, brazil. occurrence of h. arcuata in ceará fills one of the gaps in the geographic ranges known for this species along brazilian coast.
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