Monostromatic green algae (Ulvales, Chlorophyta) of São Paulo and Paraná states (Brazil): distribution, growth, and reproduction

Braga, Maria do Rosário de A.; Fujii, Mutuê T.; Cordeiro-Marino, Marilza

doi:10.1590/s0100-84041997000200010

Cited by 11 publications

(6 citation statements)

References 9 publications

(10 reference statements)

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“…Leskinen et al (2004), working with Ulva intestinalis and Ulva compressa in the Baltic Sea, used halotolerance as an additional character, besides genetic variation using internal transcribed spacer (ITS) markers, to distinguish morphological plastic species with overlapping characters. Based on the systematics of the genus Monostroma described by Tatewaki (1972) -Marino et al 1993;Braga et al 1997), which were considered as eurythermic and euryhaline species. These physiological responses are typical of monostromatic green seaweeds that are distributed mainly in estuaries of subtropical and temperate zones and are subjected to a broad fluctuation of salinity (Biebl 1937).…”

Section: Discussionmentioning

confidence: 99%

“…Monostromatic green algae in Brazil have been identified as Ulvaria oxysperma (Kützing) Bliding, or Monostroma oxyspermum (Kützing) Doty in previous reports (e.g., Joly 1965;Cordeiro-Marino et al 1993;Braga 1997;Braga et al 1997). However, Pellizzari (2005) studied two populations of monostromatic green algae from mangroves and estuaries of the Paraná coast, and concluded that both populations should be assigned to the genus Gayralia K.L.…”

Section: Introductionmentioning

confidence: 99%

“…Some studies have reported the influence of environmental factors on the growth of commercial species of green seaweeds from temperate zones (Soe-Hitun et al 1986;Guo and Mathieson 1992;Dan et al 2002;Kalita and Tytlianov 2003;Cohen and Fong 2004;Leskinen et al 2004), but little is known of species from tropical regions. Braga et al (1997) were the first to analyze the growth rates of two different species of monostromatic green algae from the Brazilian southeastern coast in different ranges of temperature and salinity. Pellizzari et al (2007) reported a pilot experiment to cultivate Gayralia sp.…”

Section: Introductionmentioning

confidence: 99%

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Life-history, thallus ontogeny, and the effects of temperature, irradiance and salinity on growth of the edible green seaweed Gayralia spp. (Chlorophyta) from Southern Brazil

Pellizzari

Oliveirã

Yokoya³

2007

J Appl Phycol

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Gayralia K.L. Vinogr. is a monostromatic green alga of commercial importance in the southern Brazil, and its cultivation is being considered. This paper reports some basic aspects of the biology of this poorly known genus. Two populations of Gayralia spp., from outer and inner sectors of Paranaguá Bay, showed an asexual life history with a distinct pattern of thallus ontogeny. In one population (Gayralia sp. 1), zooids developed an expanded monostromatic blade directly, while in the other (Gayralia sp. 2) zooids produced an intermediate saccate stage, before giving rise to a monostromatic blade. Thalli of the two species differ in size and in cell diameter. The effects of temperature (16-30°C), irradiance (50-100 μmol photons m −2 s −1 ), and salinity (5-40 psu) on the growth of both populations were assessed. Plantlets of Gayralia sp. 1 from in vitro cultures showed a broader tolerance to all salinity and irradiance levels tested, with the highest growth rate (GR; mean 17% day −1 ) at 21.5°C and 100 μmol photons m −2 s −1 . Plantlets of Gayralia sp. 1 collected during the winter in the field showed higher GR, ranging from 5% day −1 to 7.5% day −1 in salinities from 20 to 40 psu, and 2.0% day −1 and 4.3% day −1 for plantlets collected during the summer. Gayralia sp. 2 from the field showed highest GR at salinity of 15 psu. These results suggest distinct physiological responses of the two species, in accordance with their distribution: Gayralia sp. 2 is limited to the inner areas of the estuary, while Gayralia sp. 1 grows in outer areas, where salinity values are higher than 20 psu. These data indicate that Gayralia sp. 1 has a higher potential for aquaculture than Gayralia sp. 2 due to its larger thalli, higher GR, and wider tolerance to environmental variations.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Life-history, thallus ontogeny, and the effects of temperature, irradiance and salinity on growth of the edible green seaweed Gayralia spp. (Chlorophyta) from Southern Brazil

Pellizzari

Oliveirã

Yokoya³

2007

J Appl Phycol

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“…O trabalho foi objeto da dissertação de mestrado de Coto (2007) que consistiu de um levantamento da flora e comparação desta com os estudos pioneiros de A. B. Joly para a Baía de Santos (Joly 1957) e o Litoral Norte (Joly 1965), do Litoral Sul de Ugadim (1973) e do estudo de Ulvales para o estado, de Kanagawa (1983), além de estudos pontuais, tais como Oliveira Filho e Berchez (1978), Berchez & Oliveira (1992), Braga et al (1997), Qi (1999) …”

Section: Metodologiaunclassified

Lista de Ulvophyceae do estado de São Paulo

Pupo¹,

Coto²

2011

Biota Neotrop.

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A presente lista tem como base levantamento realizado a partir de 1999 pelo Programa BIOTA/FAPESP e conseqüente comparação com inventários realizados desde a década de 1950. A lista também é complementada com registros da Coleção de Algas do Herbário do Estado (SP), do Instituto de Botânica, que incluem espécimes coletados desde o início do século passado. O número total de clorófitas marinhas bentônicas mencionadas para o Estado é de 70 espécies, além de alguns táxons não identificados em nível infragenérico. De 1990 até 2010 o número de táxons registrados foi de 60, sendo alguns apenas em nível de gênero. As novas citações para o Estado somam 17 espécies, enquanto outras nove deixaram de ser citadas na última década.

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“…Information about monostromatic green seaweeds in Brazil is scarce. Braga et al (1997) reported on the reproduction of two species of monostromatic green algae, Cordeiro-Marino et al (1993) cultured Monostroma sp. in the laboratory, and Braga (1997) studied the colonization of two species of Monostroma-like algae on various substrates in the southern coast of São Paulo state.…”

Section: Introductionmentioning

confidence: 99%

Cultivation of the edible green seaweed Gayralia (Chlorophyta) in southern Brazil

et al. 2006

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During the last two decades, the monostromatic green seaweed Gayralia sp. has been harvested sporadically by local fishermen on the Paraná coast of southern Brazil and sold to Japanese restaurants. However, the production is erratic and its economic impact very small. This paper provides basic information about a technique to cultivate this seaweed on suspended nets in Paranaguá Bay, southern Brazil, aiming to develop a more reliable and sustainable source of income for impoverished coastal dwellers. Gayralia sp. occurs year round in the region, usually growing on mangrove stems and roots. Polypropylene nets (10 m long × 1 m wide with 16 cm mesh) were placed close to the mangrove fringe. Recruitment occurred year round reaching a peak of 500 recruits m −2 during early spring. Higher recruitment occurred at periods of low temperature (21-23°C) and high salinity (30-33 psu). Growth rates of Gayralia sp. ranged from 5.75 ± 0.56% to 6.50 ± 0.43% day −1 during the winter and from 1.43 ± 1.65% to 4.65 ± 2.17% day −1 , during the summer. Production ranged from 22 ± 6 g m −2 DW in June to 58 ± 21 g m −2 DW in September 2004 in 45 days after zooid settlement. The simplicity of the cultivation method, reasonable growth rates and extensive favorable area for cultivation suggest that mariculture of Gayralia sp. may become a good alternative of income for the local inhabitants.

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Monostromatic green algae (Ulvales, Chlorophyta) of São Paulo and Paraná states (Brazil): distribution, growth, and reproduction

Cited by 11 publications

References 9 publications

Life-history, thallus ontogeny, and the effects of temperature, irradiance and salinity on growth of the edible green seaweed Gayralia spp. (Chlorophyta) from Southern Brazil

Life-history, thallus ontogeny, and the effects of temperature, irradiance and salinity on growth of the edible green seaweed Gayralia spp. (Chlorophyta) from Southern Brazil

Lista de Ulvophyceae do estado de São Paulo

Cultivation of the edible green seaweed Gayralia (Chlorophyta) in southern Brazil

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