Influence of the proximity to the ocean and seasonality on the growth performance of farmed mangrove oysters (Crassostrea gasar) in tropical environments

Oliveira, Luiz F. S.; Ferreira, María Auxiliadora Pantoja; Juen, Leandro; Nunes, Zélia Maria Pimentel; Pantoja, Juliana Caroline Dias; Paixão, Leonardo Fernandes da; Lima, Maria de Nazaré Bentes de; Rocha, Rossineide Martins da

doi:10.1016/j.aquaculture.2018.06.049

Cited by 20 publications

(13 citation statements)

References 25 publications

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“…Growth provides basic information about the biology and ecology of species (Kautsky 1982;Lomovasky et al 2002) like population structure (Antsulevich et al 1999;Adami et al 2008), stock assessment (Lai et al 1996), climate change (Kroeker et al 2013), and management of molluscs culture (Oliveira et al 2018). Growth is defined as the size or mass increment within a period of time, which is determined for each species.…”

Section: Introductionmentioning

confidence: 99%

Responses of the mussel Brachidontes rodriguezii to aerial exposure: implications on growth and physiological condition

Torroglosa

Giménez

2019

Can. J. Zool.

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The length of aerial exposure (i.e., environmental conditions) of an organism, due to daily tides, induces physiological responses. A mark–recapture field experiment was conducted in two intertidal zones (low tide and high tide) using the stain calcein AM to determine growth, as measured by shell length, of the mussel Brachidontes rodriguezii (d’Orbigny, 1842) along its vertical distribution off the north Argentinean coast. In the high intertidal zone, B. rodriguezii exhibited slower growth in shell length because of the physiological stress resulting from aerial exposure during low tides. In the low intertidal zone and during spring, B. rodriguezii exhibited faster growth in shell length. It is suggested that growth of B. rodriguezii relies on several environmental factors (temperature, photoperiod, and aerial exposure) that fluctuate according to tidal height.

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Section: Introductionmentioning

confidence: 99%

Responses of the mussel Brachidontes rodriguezii to aerial exposure: implications on growth and physiological condition

Torroglosa

Giménez

2019

Can. J. Zool.

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“…Previous studies have correlated salinity with oyster growth and reproduction. Higher salinity at AGROMAR and ASSOPEF, nearer the coast, was associated with greater oyster growth than at AQUAVILA, which was furthest from the coast (Oliveira et al 2018) and, at the AGROMAR unit, oyster reproductive activity was greater during drier periods (Paixão et al 2013). Table 2.…”

Section: Salinitymentioning

confidence: 95%

“…AQUAVILA, where mean salinity varied seasonally between 8.1 and 22.7, is the major supplier of wild-harvested seed in Pará. Very low salinity (5 -7) is associated with poor growth and survival of seed (Funo et al 2015;Legat et al 2017b) and adult C. gasar (Oliveira et al 2018). Survival and growth of C. gasar seed in the laboratory were highest in intermediate salinities (20 -25), but remained very high between 10 and 45 (Funo et al 2015) or tolerated 21 -35 with optimal results at 28 (Legat et al 2017a).…”

Section: Source Of Variationmentioning

confidence: 99%

“…Water temperature, dissolved oxygen, salinity and degree of submersion, among other variables, are used as input for the assessment of habitat suitability for oyster bed rehabilitation and/or restoration (Walles et al 2016) and environmental impacts of oyster culture (Lunstrum et al 2018;Turner et al 2019). Although selected physical-chemical variables have been examined in relation to oyster reproduction, survival and growth at some units in Pará (Paixão et al 2013;Funo et al 2015;Oliveira et al 2018), as well as trace elements at all units in the peak wet and dry months (Silva et al, 2018), no standardized study of a more diverse range of variables has been undertaken at all units. The dynamics of life history parameters of C. gasar are highly seasonal and associated with temperature, salinity, pH, dissolved oxygen, degree of submersion and microalgal concentrations for larval settlement, juvenile and adult survival and/or growth (Nascimento 1991;Lemos et al 1994;Ramos and Castro 2004;Alvarenga and Nalesso 2006;Lopes et al 2013;Funo et al 2015;Funo et al 2019;Legat et al 2017a,b;Oliveira et al 2018) and reproduction (Christo and Absher 2006;Paixão et al 2013;Ramos et al 2013;Gomes et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Variation in environmental characteristics of waters among Amazon coast oyster culture units

et al. 2020

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Oyster culture has benefited traditional coastal communities along the Amazon macrotidal mangrove coast of Pará state in Brazil since 2006. Currently, seven oyster culture units in five municipalities are expanding production, but with no environmental monitoring, which is important for the control of the impacts of oyster culture on waters as well as for oyster management and conservation. Seasonal variation in environmental characteristics of the water was evaluated at all oyster culture units in Pará, from September to November 2013 (dry season) and February to April 2014 (wet season), to generate baseline data to evaluate future impacts and aid strategic planning, such as diversifying seed production. Salinity, dissolved oxygen, pH, oxidation-reduction potential, depth, temperature, and chlorophyll-a concentration were measured during flooding and ebbing tides, and compared between seasons and among culture units using uni- and multivariate statistics. All variables were significantly higher in the dry season, except depth, which was significantly greater in the wet season. Mean salinity, which varied from 2.4 to 46, explained most of the variation among culture units in relation to season, sampling date within each season and tidal state. However, dissolved oxygen, pH and depth were also important. Oyster culture units in Pará may be suitable for sustainable harvesting of seed/spat from the wild (lower salinity and pH), or for on-growing (higher salinity, higher pH, and greater depth). Seasonal variation is sufficient to allow both activities at most units at appropriate times of the year, which would help increase oyster production in Pará.

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“…For aquatic invertebrates, abiotic variables of the water, in particular salinity, pH, temperature, and dissolved oxygen, affect the osmotic balance of the organism and its absorption of nutrients and may cause stress (Bernard, 1983;Cheng, Yeh, Wang, & Chen, 2002;Yang, Sierp, Abbott, Li, & Qin, 2016). In tropical estuaries and coastal regions where temperatures are constant, salinity is one of the principal factors determining growth (Oliveira et al, 2018). In dammed rivers, salinity is zero and all trophic levels are affected by a sharp drop in nutrient availability (Agostinho et al, 1999;Cunha-Santino et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Has a river dam affected the life‐history traits of a freshwater prawn?

Silva

Andrade²,

Silva

et al. 2020

Ecology and Evolution

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In recent years, species richness and diversity in aquatic ecosystems has declined as environments are increasingly impacted by anthropic actions. Freshwater prawns are well adapted to survive in a disturbed and heterogeneous environment. For instance, Amazon river prawn (Macrobrachium amazonicum) populations vary in migratory behavior between rivers and estuaries, depending on factors such as dams. However, there is limited information on the influence of environmental conditions on life‐history traits of this species, which we investigate here using two distinct and unconnected aquatic systems, a dammed river and an estuary, in the eastern Brazilian Amazon. The biological characteristics of M. amazonicum populations in the two environments were compared and related to environmental parameters, which differed significant differences between the two environments and between seasons. Dissolved oxygen, precipitation, and temperature varied most significantly with the seasons in both the estuary and river. M. amazonicum prawns in the estuary were larger and heavier than those in the river during rainy periods. The mass–length ratios and condition factor varied significantly between the M. amazonicum populations in the estuary and river, with negative allometric growth (grows faster in length than in weight) predominating in both populations, and condition factor was better in the estuary for males and in the river for females. The relative frequencies of occurrence of the different female maturation stages and the male morphotypes were related to precipitation and turbidity in both environments and also to salinity in the estuary. In these two distinct aquatic systems, the abiotic parameters determined by the seasonal precipitation cycle profoundly influenced the development of this crustacean, despite its ecological plasticity. Overall, the study showed that river damming triggered environmental changes in the freshwater river ecosystem and played a key role in determining the life‐history characteristics of M. amazonicum in these contrasting aquatic systems.

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Influence of the proximity to the ocean and seasonality on the growth performance of farmed mangrove oysters (Crassostrea gasar) in tropical environments

Cited by 20 publications

References 25 publications

Responses of the mussel Brachidontes rodriguezii to aerial exposure: implications on growth and physiological condition

Responses of the mussel Brachidontes rodriguezii to aerial exposure: implications on growth and physiological condition

Variation in environmental characteristics of waters among Amazon coast oyster culture units

Has a river dam affected the life‐history traits of a freshwater prawn?

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