Maturation and growth curves of Macrobrachium Carcinus (Linnaeus) (Crustacea, Decapoda, Palaemonidae) from Ribeira de Iguape River, southern Brazil

Valenti, Wagner C.; Mello, Jeanette de Toledo Cardoso de; Lobão, Vera Lucia

doi:10.1590/s0101-81751994000400009

Cited by 11 publications

(3 citation statements)

References 4 publications

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“…While Gabche & Hockey (1995) Isaac (1990) had demonstrated that growth parameters estimated from ELEFAN I could be biased as a result of individual growth variability, seasonal oscillations in growth, the restructuring procedure, sizedependent selection, variable recruitment period and large size-class interval. Using the growth performance index or phi prime (Φ') which is the basis of comparison of growth parameters (Moreau et al, 1986;Munro & Pauly, 1983;Pauly, 1991) and which also takes into consideration L ∞ and K, the results in this study fall within an acceptable range since the Φ' values obtained in this study (2.75 and 2.67 for males and females) are comparable with those for M. carcinus (2.34) (Valenti et al 1994), M. vollenhovenii (2.93) (Gabche & Hockey 1995), and 2.47 (Etim & Sankare, 1998). In contrast, the estimated longevity of the species varied widely from 11 months (Gabche & Hockey, 1995) to 39.6 months (Etim & Sankare, 1998).…”

Section: Resultssupporting

confidence: 70%

Population dynamics of the Giant African River prawn <i>Macrobrachium vollenhovenii</i> Herklots 1857 (Crustacea, Palaemonidae) in the Cross River Estuary, Nigeria

Nwosu¹,

Wolfi²

2009

West African Journal of Applied Ecology

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Growth, mortality, recruitment, yield-per-recruit and present rate of exploitation of the African river prawn Macrobrachium vollenhovenii were studied in the Cross River Estuary, Nigeria. The research was based on length-frequency data collected between January 1997 and June 1998, and FAO-ICLARM Software (FiSAT) routine runs. Growth parameters obtained from the seasonalized von Bertalanffy growth function were L∞ 213.63 and 198.99 mm, K = 1.24/year and 1.24/year; C = 0.95 and 0.95; WP = 0.6 and 0.45, for M. vollenovenii males and females, respectively. Using the seasonalized length-converted catch curves, the instantaneous rate of total mortality Z was estimated as 3.93/year and 6.85/year for males and females. Natural mortality M, fishing mortality F, and exploitation rate E of both sexes were 2.21/year and 2.27/year, 1.72/year and 4.58/year, and 0.44 and 0.67, respectively. The length at first capture L c estimated from the probability of capture routine was 44.25 mm and 73.41 mm for males and females. One recruitment peak was observed for males, and two of unequal strength for females. Length-weight relationship gave 'b' values of 3.483 and 3.329 for males and females, respectively. The relative yield-per-recruit analysis predicted maximum exploitation rates (E max ) of 0.42 and 0.47 as against current exploitation rates of 0.44 and 0.67 for males and females and suggest that only female M. vollenhovenii are being over-exploited. Hence, it is proposed that fishing on females during the reproductive season is reduced, and that the return of egg-bearing females into the waters is enforced.

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Section: Resultssupporting

confidence: 70%

Population dynamics of the Giant African River prawn <i>Macrobrachium vollenhovenii</i> Herklots 1857 (Crustacea, Palaemonidae) in the Cross River Estuary, Nigeria

Nwosu¹,

Wolfi²

2009

West African Journal of Applied Ecology

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“…Von Bertalanffy's growth curve (VON BERTALANFFY 1938), although commonly used for fishes (SANTOS 1978) and for a variety of crustaceans, especially decapods (FONTOURA 1989, VALENTI et al 1994, BARROS & FONTOURA 1996, BUENO et al 2000, NORO & BUCKUP 2003 has rarely been used for terrestrial isopods. MCQUEEN & CARNIO (1974) studied the growth of Porcellio spinicornis Say, 1818 using von Bertalanffy's model, reformulated to consider growth measured in terms of weight.…”

Section: Philoscia Muscorummentioning

confidence: 99%

Growth curve of Atlantoscia floridana (van Name) (Crustacea, Isopoda, Philosciidae) from a Brazilian Restinga Forest

Araujo

Bond‐Buckup

2004

Rev. Bras. Zool.

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The terrestrial isopod Atlantoscia floridana (van Name, 1940) occurs from the U.S.A. (Florida) to Brazil and Argentina. In the southernmost Brazilian State, Rio Grande do Sul, the species is recorded in many localities, in urban and in non-urban areas. The growth curve of Atlantoscia floridana based on field data is presented. The specimens were sampled from April, 2000 to October, 2001 at the Reserva Biológica do Lami (RBL), Rio Grande do Sul. Captured individuals were sexed and had their cephalothorax width measured, with the data analyzed with von Bertalanffy's model. The growth curves for males and females are described, respectively, by the equations: Wt = 1.303 [1 - e-0.00941 (t + 50.37)] and Wt = 1.682 [1 - e-0.00575 (t + 59.13)]. The curves showed differential growth between sexes, where females reach a higher Wµ with a slower growth rate. Based on the growth curves it was also possible to estimate life expectancy for males and females.

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“…Sexual dimorphism has been widely documented for epigeal crayfish and prawns (Weagle and Ozburn 1970;Lobao et al 1986;Valenti et al 1987Valenti et al , 1994Hernández-Guzmán et al 1999), notably in the proportions of the chelae. In the epigeal environment the main selective force that induces sexual differentiation in chelae is reproductive behaviour, since in general males show aggressive and dominant behaviour to conspecifics (Bovbjerg 1970; Progressive troglomorphism in cave decapods 259 Rabeni 1985;Sö derbäck 1991).…”

Section: Discussionmentioning

confidence: 99%

Progressive troglomorphism of ambulatory and sensory appendages in three Mexican cave decapods

Mejía-Ortíz

Hartnoll

López‐Mejía

2006

Journal of Natural History

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Sensory and ambulatory appendages were compared between epigeal and cave species of prawn and crayfish from Mexico. The cave prawn Macrobrachium villalobosi was compared with the epigeal M. totonacum. The cave crayfish Procambarus cavernicola and P. oaxacae reddelli were compared with the epigeal P. olmecorum. In both Macrobrachium and Procambarus the antennules and antennae of the cave species were longer in proportion to carapace length than in epigeal species. In the crayfish the cave species had a longer and narrower first pereiopod, and also showed a greater development of setation on the antennules, antennae, and carapace. These are all considered examples of progressive troglomorphism. They will improve non-visual sensory capability in the aphotic and resource-poor cave environment.

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Maturation and growth curves of Macrobrachium Carcinus (Linnaeus) (Crustacea, Decapoda, Palaemonidae) from Ribeira de Iguape River, southern Brazil

Cited by 11 publications

References 4 publications

Population dynamics of the Giant African River prawn <i>Macrobrachium vollenhovenii</i> Herklots 1857 (Crustacea, Palaemonidae) in the Cross River Estuary, Nigeria

Population dynamics of the Giant African River prawn <i>Macrobrachium vollenhovenii</i> Herklots 1857 (Crustacea, Palaemonidae) in the Cross River Estuary, Nigeria

Growth curve of Atlantoscia floridana (van Name) (Crustacea, Isopoda, Philosciidae) from a Brazilian Restinga Forest

Progressive troglomorphism of ambulatory and sensory appendages in three Mexican cave decapods

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