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| Gregati,Rafael Augusto; Negreiros-Fransozo,Maria Lucia. |
| The relative growth and morphological sexual maturity of Chasmagnathus granulatus Dana, 1851 are presented for the first time to a mangrove population. The crabs were obtained during low tide periods, in the mangrove of Jabaquara Beach, Paraty, Rio de Janeiro, Brazil. All crabs in intermolt stage were sexed and had their body parts measured as follows: body height (BH), carapace length (CL) and width (CW), major cheliped propodus height (PH) and length (PL) for each sex, gonopod length (GL) and abdomen width (AW) for males and females, respectively. The relative growth was described using the allometric equation y=ax b and the size at onset sexual maturity was achieved using the software Mature I. The size of specimens ranged from 4.1 mm to 39.5 mm CW. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Grapsoidea; Semiterrestrial crabs; Morphometric relationships; Allometric growth. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000300009 |
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| Lima,Jô de Farias; Silva,Luis Mauricio Abdon da; Silva,Thibério Carvalho da; Garcia,Jamile da Silva; Pereira,Ilana da Silva; Amaral,Karlia Dalla Santa. |
| Macrobrachium amazonicum is an indigenous prawn vastly distributed in basins of South America, widely exploited by artisanal fisheries in northern and northeastern Brazil and, with great potential for aquaculture. This study aimed to investigate general aspects of population structure and reproductive characteristics (size at first maturity, fecundity and reproductive output) of M. amazonicum from two important areas to artisanal prawn fishing located at the mouth of the Amazon River, State of Amapá. The specimens were captured using 20 handcrafted traps called "matapi". A number of 5,179 prawns were captured, 2,975 females and 2,195 males resulting in 1.35:1 female to male ratio. Santana Island and Mazagão Velho showed females predominated in the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Palaemonid eggs; First maturation; Fecundity; Morphometric relationships; Reproduction. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000200010 |
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| Pires, Aldrin Vieira; UFVJM; Pedreira, Marcelo Mattos; UFVJM; Pereira, Idalmo Garcia; UFVJM; Fonseca Júnior, Armando da; Bioalevinus; Araújo, Cláudio Vieira; UFMT; Silva, Larissa Hélida da Silva e; FAESA. |
| A criação de tilápia-do-Nilo (Oreochromis niloticus) e o seu filé apresentam um mercado vigoroso e expansão no Brasil e no mundo. Portanto, um modelo de regressão obtido a partir de parâmetros corporais externos, de fácil observação, que prediga o rendimento e o peso do filé possibilita selecionar indivíduos com maior potencial produtivo. Objetivou-se com este trabalho obter um modelo que permita predizer o rendimento e o peso do filé, baseado em medidas morfométricas e do peso. Foram avalidos 890 indivíduos dos quais os caractéres mensurados foram: comprimento total (CT), comprimento-padrão (CP), comprimento da cabeça (CC) e do tronco (CTR), altura da cabeça (AC1), altura lombar (AL), altura caudal (AC2), espessura lombar (EL) e caudal (EC), peso corporal... |
| Tipo: Pesquisa de campo |
Palavras-chave: 5.06.03.00-0 // 5.06.03.04-3 Oreochromis niloticus; Relações morfométricas; Seleção fenotípica Oreochromis niloticus; Morphometric relationships; Phenotypic selection. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10838 |
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