Bacharelado em Ciências Biológicas (Sede)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/5
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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Resultados da Pesquisa
Item Dinâmica populacional do camarão escavador Neocallichirus maryae Karasawa, 2004 na Praia de Mangue Seco, Igarassu - PE(2022-10-14) Albuquerque, Maria Eduarda Kusuky de; Carvalho, Mônica Lúcia Botter; http://lattes.cnpq.br/1762304533046987; http://lattes.cnpq.br/5973917912934823The aim of this study is provide the first informations about the population structure and relative growth of the species, on a beach of north coast of Pernambuco. The samples were made with help of a “yabby pump”, between September 2018 and October 2019. The specimens were mensured about the Cephalotorax Lenght (CF), Total Length (CT), Major Propodus Cheliped Lenght (CP), Major Propodus Width (LP), Major Propodus Height (AP), Major Carpus Cheliped Lenght (CC) and Major Carpus Cheliped Height (AC). A total of 559 individuals were collected, 219 males and 358 females, where 46 were ovigerous. The sexual maturity was reached at A maturidade sexual 9mm of CF for both sexes. Only for the general population and between adults the sex ratio was significantly female-biased (p<0,0001). The smallest ovigerous female presented A 9,37 mm of CF and the biggest presented 16,48 mm of CF. The major and minor collected animal were females. The most part of ovigerous females (36 specimens) carried uneyed embryos. For both sexes, the analyses of relative growth showed positive allometry for the relationships CFxCP, CFxLP, CFxAP and CFxAC. For the relationship CFxCC, females presented negative allometry and males presented positive allometry. Both sexes presented isometry for the relationship CFxCT. The female-biased sex ratio may have been due to the fact that they are positioned in more superficial layers of sediment for oxigenation of the egg mass, corroborating with the peak of ovigerous females collected. We emphasize the uniqueness of the findings, highlighting the relevance of results to fill the large gap of knowledge about the species.Item O uso da esqueletocronologia para estimar idade em tartarugas marinhas(2020-01-03) Filgueira, Maysa Arcanjo; Sá, Fabrício Bezerra de; Guimarães, Elisângela da Silva; http://lattes.cnpq.br/3984004103615974; http://lattes.cnpq.br/5063398024530288; http://lattes.cnpq.br/0769561671220471Sea turtle populations are declining worldwide and human activities are being considered as important factors in decreasing this group. Fisheries carried out directly on foraging sites of the species Lepidochelys olivácea generate high mortality rates for this species. Sea turtle strandings have been a very important tool for studies regarding the negative impacts that occur in the coastal zone. Taking into account the importance of assessing the impacts caused on sea turtle populations, the objective of the present study is to estimate the age for the species Lepidochelys olivacea found on the coast of municipality of Ipojuca - PE, using the skeletochronology technique. 14 individuals were used to carry out the analysis, using transversal cuts of the humerus close to Crista Deltapeitoral and thus testing the method of manual wear to obtain the materials for reading the growth lines. The estimated age of the individuals analyzed was 9 to 17 years. It was observed in a strong correlation between the curvilinear Carapace Length - CCC and the number of growth lines (r = 0.91; P <0.0001). However, the correlation between the CCC and the longitudinal length - CL did not obtain a good correlation (r = 0.7; P <0.0001).