Encontrados 16 documentos, a visualizar página 1 de 2
Anatomia comparada e morfometria de oligoryzomys nigripes e o. flavescens (rode...
Machado,Leonardo F.; Paresque,Roberta; Christoff,Alexandre U.Oligoryzomys nigripes e O. flavescens são amplamente distribuídos e simpátricos em diversos biomas. Os caracteres diagnósticos para seus reconhecimentos não são claramente estabelecidos. Neste estudo, foram realizadas a descrição e comparação da morfologia externa, anatomia do crânio, dentes, esqueleto pós crânio, morfologia estomacal e peniana. Análises estatísticas foram geradas a partir de dados morfométrico...
Occurrence of Grammicolepis brachiusculus Poey, 1873 (Pisces: Grammicolepididae...
Barreiros, João P.; Machado, Leonardo F.; Vieira, Rui P.; Porteiro, Filipe M.Three specimens of Grammicolepis brachiusculus were caught by the commercial bottom hand and longline fisheries off Terceira and Faial Islands, Azores Archipelago. This is the first record of the species for the region, and one of few ever caught in the NE Atlantic.
Rocky reef fish community structure in two Azorean islands (Portugal) central N...
Bertoncini, Áthila A.; Machado, Leonardo F.; Barreiros, João P.; Hostim-Silva, Maurício; Verani, José R.Copyright © Cambridge University Press 2010. ; The community structure of shallow rocky reef fish fauna of the Azores Archipelago is described from underwater visual censuses carried out at eight areas (Terceira and Corvo Islands). A total of 52 fish species from 26 different families was observed, and the ten most abundant fish corresponded to 82.7% of all fish. Trophic categories are given for observed speci...
Cleaning activity among Labridae in the Azores: the rainbow wrasse Coris julis ...
Bertoncini, Áthila A.; Machado, Leonardo F.; Barreiros, João P.; Hostim-Silva, Maurício; Verani, José R.Copyright © Cambridge University Press 2009. ; Cleaning interactions among the rainbow wrasse Coris julis and the azorean blue wrasse Centrolabrus caeruleus are presented with photographic registers, as well as the first record of the latter cleaning conspecifics from Azorean shallow rocky reefs.
Space-time distribution of the ichthyofauna from Saco da Fazenda estuary, Itaja...
Barreiros, João P.; Branco, Joaquim O.; Freitas Jr, Felipe; Machado, Leonardo F.; Hostim-Silva, Maurício; Verani, José R.Copyright © 2009 Coastal Education and Research Foundation (CERF). ; A Ictiofauna do estuário Saco da Fazenda foi estudada mensalmente entre julho de 2003 e junho de 2004 em quatro áreas definidas em função das características fisiográficas e da representatividade do estuário nesta região. Foram capturados 4502 exemplares, distribuídos em 42 espécies, 35 gêneros e 21 famílias. Engraulidae foram os peixes mais ...
Wrasses clean up in the Azores
Bertoncini, Áthila A.; Verani, José R.; Barreiros, João P.; Machado, Leonardo F.; Hostim-Silva, MaurícioCopyright © Cambridge University Press 2009. ; Cleaning interactions among fish, involve small fish or 'cleaners', which remove ectoparasites and other items, sue has dead tissue, from the body of generally larger, cooperating fish 'clients'. They usually occur at traditional sites, known as cleaning stations, where cleaners make use of a series of short-distance signals to facilitate the recognition of cleane...
A previously undescribed following association between juvenile Epinephelus mar...
Machado, Leonardo F.; Barreiros, João P.Copyright © 2008 Société Française d’Ichtyologie. ; Première description d'une association entre un juvénile d'Epinephelus marginatus (Serranidae) suivant un Octopus vulgaris. Au cours d'un échantillonnage systématique dans une zone intertidale à l'île Terceira, Açores, Atlantique NE, un spécimen juvénile d'Epinephelus marginatus (15 cm LT) à été observé, suivant, pendant 6 minutes, un Octopus vulgaris (30 cm ...
Feeding ecology and trophic ontogeny in Epinephelus marginatus (Perciformes: Se...
Machado, Leonardo F.; Daros, Felippe A.; Bertoncini, Áthila A.; Hostim-Silva, Maurício; Barreiros, João P.Copyright © 2008 Société Française d’Ichtyologie. ; The stomach contents of 257 specimens of Epinephelus marginatus (197-920 mm TL) obtained between February 1999 and December 2003 in Santa Catarina State (South Brazil) were investigated in order to analyse their diet composition and understand the feeding strategy and interspecific diet overlap. E. marginatus from south Brazil fed mainly on brachyuran crustac...
In situ observation of sexual reproduction of Holothuria tubulosa Gmelin 1788 (...
Andrade, Áthila A.; Machado, Leonardo F.; Barreiros, João P.; Paulay, Gustav; Cardigos, FredericoCopyright © SPC 2010. ; [...]. In the Azores, H. tubulosa spawning occurs in the summer months (so far observed in July and August) during the afternoon, which may follow the annual pattern, during warm sea temperatures (22–26°C) and being synchronous in both sexes, as stated by Despalotovic et al. (2004) in the Adriatic Sea. [...]
Juvenile Sphyraena viridensis, preyed by the lizard fish Synodus saurus. A new ...
Barreiros, João P.; Cardigos, Frederico; Soares, Marta S. C.; Machado, Leonardo F.Copyright © 2008 Société Française d’Ichtyologie. ; Les juvéniles de Sphyraena viridensis, proies de Synodus saurus, une nouvelle association prédateur-proie aux Açores. Au cours d’un travail sur l’écologie (comportement, alimentation et reproduction) du poisson lézard, Synodus saurus, aux Açores (Atlantique NE) nous avons découvert, dans plusieurs contenus stomacaux, des exemplaires postlarvaires et des juvén...
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