GROWTH OF Litopenaeus schmitti (BURKENROAD, 1936) AND Farfantepenaeus paulensis (PEREZ-FARFANTE, 1967) SHRIMP REARED IN RECIRCULATION CULTURE SYSTEM

Abstract

A B S T R A C TThe Litopenaeus schmitti and Farfantepenaeus paulensis shrimp captured in estuaries are marketed as live bait for recreational fishing. As an alternative to shrimp extractive activities, the authors evaluated the rearing of these species in a recirculation culture system. For each species, the grow-out study was carried out in two 120-day production cycles, using 3,300 juveniles of an average length of 25 mm and weight of 0.9 grams in each, distributed in 12 tanks of 1,500 liters and 1.32 m 2 , at a population density of 208.3 shrimp per m 2 . The growth parameters were obtained using the von Bertalanffy model based on the length (mm) and age (weeks) data. The adjustments were made in the R environment of the non-linear least-square method. The von Bertalanffy growth model showed a proper fit, with determination coefficients of 0.900 for L. schmitti and 0.841 for F. paulensis. The values of L∞ and k were 172.66 and 0.027 mm for L. schmitti and 110.13 mm and 0.050 for F. paulensis, respectively. In the current study, L. schmitti showed negative allometric growth (p=4,314x10-18) and F. paulensis isometric growth (p=0.267). The growth of shrimp obtained in the proposed recirculation system can supply live bait for the sport fishing market. R E S U M OOs camarões Litopenaeus schmitti e Farfantepenaeus paulensis capturados pela pesca artesanal nos estuários são comercializados como iscas vivas na pesca esportiva. Como alternativa à atividade extrativista foi avaliado o cultivo dessas espécies em sistema de recirculação de água. Para cada espécie foram realizados dois ciclos de produção de 120 dias, utilizando 3300 juvenis em cada um, com média de 25 mm de comprimento e 0.9 gramas em peso, dispostos em 12 tanques de 1500L e 1.32 m 2 , na densidade de 208.3 camarões m 2 . Os parâmetros de crescimento foram obtidos utilizando-se o modelo de von Bertalanffy baseado nos dados de comprimento (mm) e idade (semanas). Os ajustes foram feitos no ambiente R utilizando o método não-linear de mínimos quadrados. O modelo de von Bertalanffy apresentou ajuste adequado, com coeficientes de determinação de 0.900 para L. schmitti e 0.841 para F. paulensis. Os valores de L∞ e k foram 172.66 mm e 0.027 para L. schmitti e 110.13 mm e 0.050 para F. Paulensis, respectivamente. No presente estudo L. schmitti apresentou crescimento alométrico negativo (p=4.314x10-18) e F. paulensis crescimento isométrico (p=0.267). O crescimento obtido dos camarões no sistema de recirculação proposto atende ao mercado de iscas vivas da pesca esportiva.

Zootechnical performance and interaction between Penaeus schmitti Burkenroad, 1936 and Penaeus vannamei Boone, 1931 reared under laboratory conditions

“…Effect of stocking density on the growth of P. schmitti in captivity was studied by Marquez et al (2012), finding that densities of up to 50 ind m -2 negatively affect the crop weight and the weekly weight increase, but allow a higher yield. Henriques et al (2014), studied the growth of the species in intensive cultivation to produce live bait, concluding that the growth parameters of P. schmitti cultivated in these conditions were similar to those reported in the literature for natural populations. Likewise, De analyzed the economic viability of intensive white shrimp production as bait for sport fishing; the results indicated a commercial opportunity for small producers due to the attractive selling prices.…”

“…On the other hand, Castilho- and Henriques et al (2014), in experiments to obtain P. schmitti shrimp for live bait, reported yield or productivity averages between 591 and 831 g m -2 . These values are 5 to 22 times higher than those obtained in our work with the same species, mainly due to the high stocking densities used by these authors (from 151.5 to 208.3 ind m -2 ), to obtain a higher amount of juveniles.…”

<b>Growth, longevity, and juvenile recruitment of the white shrimp <i>Litopenaeus schmitti </i>(Burkenroad, 1936) (Decapoda: Penaeoidea) in southeastern Brazil

“…The most commonly used model for growth studies in crustaceans was developed by Ludwig von Bertalanffy (1938) and provides information about theoretical maximum sizes for individuals as well as growth rate and longevity (D'Incao & Fonseca, 1999). Such information is important for understanding population dynamics and reproductive strategies (Heckler, Simões, Santos, Fransozo, & Costa, 2013;Henriques, Alves, Barreto, & Souza, 2014;Castilho et al, 2015), particularly for commercially exploited species (D'Incao & Fonseca, 1999), since it provides support for conservation (Vogt, 2012). On the coast of Brazil in the southeastern and southern regions, regulations already prohibit penaeid shrimp trawling from March 1 to May 31 of each year with the purpose of promoting the recovery of fish stocks (Instituto Brasileiro do Meio Ambiente e dos Recursos Naturais Renováveis [IBAMA], 2008).…”

“…Several studies related to L. schmitti have been conducted along the Brazilian coast: investigation of their life cycle in Pernambuco, on the northeastern coast of Brazil (Coelho & Santos, 1994), and ecological aspects, population structure, distribution and population dynamics on the southeastern coast of Brazil (Neiva, Santos, & Jankauskis, 1971;Capparelli et al, 2012;Bochini et al, 2014;Barioto, Stanski, Grabowski, Costa, & Castilho, 2017). However, studies related to growth parameters and longevity have only been performed in the northeastern region (Santos, Pereira, & Ivo, 2006) and in captivity (Henriques et al, 2014), with no studies on these parameters or estimated size of juveniles migrating from the estuary to the marine region in the northern São Paulo state.…”

Chronic effects of nitrogenous compounds on survival and growth of juvenile pink shrimp

“…Many studies have been performed in order to introduce it in aquaculture Ballester et al, 2007Ballester et al, , 2010Emerenciano et al, 2007;Henriques et al, 2014;Peixoto et al, 2003Peixoto et al, , 2004Tsuzuki and Cavalli, 2000;Wasielesky et al, 2003).…”