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Distribución y variación morfológica de Amphiroa beauvoisii (Corallinales, Rhodophyta) en México
Mateo-Cid, Luz Elena;Aguilar-Rosas, Raúl;Mendoza-González, A. Catalina;Aguilar-Rosas, Luis E.;
Revista mexicana de biodiversidad , 2008,
Abstract: several samples of amphiroa beauvoisii (corallinales, rhodophyta) were collected in different localities along the pacific and caribbean coasts of mexican from 1994 to 2007. an extensive review of amphiroa beauvoisii recorded from mexico was carried out. specimens of different herbaria were examined to determine its geographic distribution, as well as morphological and reproductive data for this taxon. analysis of this information showed that this species is distributed along the pacific coast from islas coronados, baja california to la ventosa, oaxaca. a. beauvoisii is frequent in the gulf of california and jalisco, guerrero and oaxaca, while on the atlantic coast it is rare and we only found it on coralline reefs of yucatán and quintana roo. morphological variation, reproductive stage, and distinctive characteristics of this taxon are included. a. beauvoisii is an extremely variable species; the tetrasporangial and bisporangial thalli are more common, more branched and taller that the gametangial plants. we found gametangial and tetrasporangial plants on the pacific coast and only tetrasporangial plants in the caribbean. male and female plants of a. beauvoisii are described for the first time from mexican populations.
Occurrence and Distribution of the Genus Jania J. V. Lamouroux (Corallinales, Rhodophyta) in the Pacific Coast of Baja California and Gulf of California, Mexico  [PDF]
Luz Elena Mateo-Cid, A. Catalina Mendoza-González, Luis E. Aguilar-Rosas, Raúl Aguilar-Rosas
American Journal of Plant Sciences (AJPS) , 2013, DOI: 10.4236/ajps.2013.412A2001
Abstract:

This paper provides a description of the articulated species of the Tribe Janieae (Corallinales, Rhodophyta) in the Pacific coast of Baja California and Gulf of California, Mexico. This taxonomic report is based on newly collected data in the study area and material currently housed at several herbaria. As a result of the present study, the record of the tribe Janieae is represented at the Pacific coast of Mexico for one genus: Jania J. V. Lamouroux with nine species. Morphological, reproductive and anatomical descriptions are provided in detail. In addition, keys for determination are included, as well as habitat, nomenclature, comparisons with other species and information on distribution. Instead of eleven species of Jania currently recorded for the study area, we recognize only nine. Jania verrucosa is restricted to the occidental coast from the Peninsula of Baja California. The remainder of the species commonly occurs in the Gulf of California and the Pacific coast of Baja California’s Peninsula. On the other hand, the gametangial thalli of J. adhaerens and tetrasporangial conceptacle in J. longiarthra are reported for the first time in Mexico.

THE GENUS HYDROLITHON FOSLIE (CORALLINALES, RHODOPHYTA) ALONG THE ATLANTIC AND CARIBBEAN COASTS OF MEXICO
Mendoza-González,Catalina; Pedroche,Francisco F; Mateo-Cid,Luz Elena;
Gayana. Botánica , 2009, DOI: 10.4067/S0717-66432009000200008
Abstract: this paper provides the first monographic account of the genus hydrolithon foslie (1909) along the atlantic and caribbean coast of mexico. we found five species of this genus including two new records for this region: h. onkodes (heydrich) d.penrose et woelkerling and h. reinboldii (weber van bosse et foslie) foslie. the most common species in the study area was h. farinosum (j.v.lamouroux) d.penrose et y.m.chamberlain. h. onkodes and h. pachydermum (foslie) j.c.bailey, j.e.gabel et d.w.freshwater were compared with lectotype specimens. all species may be differentiated between them on the basis of the next characteristics: 1) habit: with or lacking protuberances, free or attached; 2) thallus construction: monomerous or dimerous; 3) basal region: unistratose or multistratose; 4) trichocytes: scattered or in horizontal or vertical rows or large pustulous fields; 5) pore canal cells: shape. morphological, anatomical and reproductive accounts are provided, including keys, information on distribution, habitat and nomenclature.
THE GENUS HYDROLITHON FOSLIE (CORALLINALES, RHODOPHYTA) ALONG THE ATLANTIC AND CARIBBEAN COASTS OF MEXICO EL GéNERO HYDROLITHON FOSLIE (CORALLINALES, RHODOPHYTA) EN LA COSTA ATLáNTICA Y CARIBE DE MéXICO  [cached]
Catalina Mendoza-González,Francisco F Pedroche,Luz Elena Mateo-Cid
Gayana. Botanica , 2009,
Abstract: This paper provides the first monographic account of the genus Hydrolithon Foslie (1909) along the Atlantic and Caribbean coast of Mexico. We found five species of this genus including two new records for this region: H. onkodes (Heydrich) D.Penrose et Woelkerling and H. reinboldii (Weber van Bosse et Foslie) Foslie. The most common species in the study area was H. farinosum (J.V.Lamouroux) D.Penrose et Y.M.Chamberlain. H. onkodes and H. pachydermum (Foslie) J.C.Bailey, J.E.Gabel et D.W.Freshwater were compared with lectotype specimens. All species may be differentiated between them on the basis of the next characteristics: 1) Habit: with or lacking protuberances, free or attached; 2) Thallus construction: monomerous or dimerous; 3) Basal region: unistratose or multistratose; 4) Trichocytes: scattered or in horizontal or vertical rows or large pustulous fields; 5) Pore canal cells: shape. Morphological, anatomical and reproductive accounts are provided, including keys, information on distribution, habitat and nomenclature. Se realizó el primer informe monográfico sobre el género Hydrolithon Foslie (1909) a lo largo de la costa Atlántica y Caribe de México. Se encontraron 5 especies para este género incluyendo dos nuevos registros para esta región H. onkodes (Heydrich) D.Penrose et Woelkerling e H. reinboldii (Weber van Bosse et Foslie) Foslie. La especie más común en el área de estudio fue H. farinosum (J.V.Lamourouxj D.Penrose et Y.M.Chamberlain. H. onkodes and H. pachydermum (Foslie) J.C.Bailey, J.E.Gabel et D.W.Freshwater fueron comparados con los lectotipos de ambas especies. Los cinco taxa pueden distinguirse entre sí por las siguientes características: 1) hábito: costrosos lisos, con o sin protuberancias, libres o adheridos; 2) construcción del talo: monómera o dímera; 3) región basal: uniestratosa o multiestratosa; 4) tricocitos: solitarios, en hileras horizontales o verticales o densamente agregados bajo las células epiteliales y la superficie del talo y 5) forma de las células del poro del canal. Se presenta información sobre la morfología, anatomía y estado reproductivo, incluyendo clave, distribución y habitat de este género.
Revisión de las especies mexicanas de Pneophyllum Kützing (Corallinales, Rhodophyta)
Mateo-Cid,Luz Elena; Mendoza-González,A. Catalina;
Revista de biología marina y oceanografía , 2009, DOI: 10.4067/S0718-19572009000300008
Abstract: with the aim of characterizing the mexican species of coralline algae from the genus pneophyllum and their distribution, ten field trips in twelve localities were performed to collect species of pneophyllum, from 1992 to 2004. species were collected from baja california, baja california sur, sonora, jalisco and oaxaca at the pacific coast of mexico, and quintana roo at the atlantic coast of mexico. in addition, we complemented our study with observations of material currently deposited in different herbaria. also, an extensive bibliographic revision of the genus pneophyllum kützing (corallinales, rhodophyta) in mexico was done. analysis of this information showed that this genus contains four species: p. confervicola (kützing) chamberlain, p. conicum (dawson) keats, chamberlain & baba, p. fragile kützing and p. nicholsii (setchell & mason) silva & gabrielson. furthermore, p. confervicola and p. fragile are distributed in both coasts at the pacific and atlantic shores of mexico. male and female reproductive structures of pneophyllum are described and for the first time p. confervicola is recorded from the atlantic coast of mexico. morphological descriptions, cytology, reproductive stage and photographs of the species examined are included.
A associa??o entre Crepidula aculeata (Gastropoda, Calyptraeidae) a alga calcárea Amphiroa beauvoisii, na Baía de Santos, S?o Paulo, Brasil
Masunari, Setuko;
Revista Brasileira de Zoologia , 1988, DOI: 10.1590/S0101-81751988000200012
Abstract: association crepidula aculeata - amphiroa beauvoisii. population study of crepidula aculeata gmelin, 1791) (gastropoda calyptraeidae) and analysis of protocooperative association between the mollusc and the alga were carried out in the phytal of calcareous alga amphiroa beauvoisii lamouroux, 1816 at ilha das palmas, santos bay (24o00's - 46o19'w). samples were collected at three sites of different degree of water movement in the intertidal zone and sublittoral fringe during 1975 and 1976. from 93,916 organisms belonging to 172 species, 5,331 were crepidula, the most abundant among sessile species. also, crepidula constitutes a substratum to attachment of amphiroa, accounting for 30% of total phytal area. there was a positive correlation between the growth of shell and epizoic alga. higher level of the phytal belt was more suitable for attachment and/or growth of the epizoic alga, without influence from water movement or season of the year. this association depends on the external morphology of the shell, filter-feeding habit, high adhesive power and lacking of mechanisms avoiding attachment of epizoics of crepidula. exuberant growth of the epizoic tuft over crepidula female shell would constitute camouflage and protection of offsprings against predators.
Gracilaria, Subgenus Textoriella (Gracilariaceae, Rhodophyta) in the Gulf of Mexico and the Mexican Caribbean
Dreckmann, Kurt M.;Sentíes, Abel;
Revista mexicana de biodiversidad , 2009,
Abstract: four species of gracilaria (gracilariaceae, rhodophyta) with textorii-type spermatangial conceptacles (subgenus textoriella yamamoto) are recorded for the gulf of mexico and the mexican caribbean: gracilaria blodgettii, g. cervicornis, g. mammillaris, and g. tikvahiae. the general distribution of the subgenus for central america, both pacific and atlantic, displays a disjunct pattern explainable based on the geologic vicariant events that interrupted the connection between pacific and atlantic at the isthmuses of panama (closed 3.1-2.8 million years ago), and tehuantepec (southern mexico, closed 4-3.5 million years ago). gracilaria cuneata/g. crispata, and g. mammillaris (g. hayi)/g. veleroae are 2 pairs of sibling species, or sister taxa, that diverged as a result of the final emergence of the isthmus, and of the same age as the central american isthmus itself.
Gracilaria, Subgenus Textoriella (Gracilariaceae, Rhodophyta) in the Gulf of Mexico and the Mexican Caribbean Gracilaria, subgénero Textoriella (Gracilariaceae, Rhodophyta) en el golfo de México y el Caribe mexicano  [cached]
Kurt M. Dreckmann,Abel Sentíes
Revista mexicana de biodiversidad , 2009,
Abstract: Four species of Gracilaria (Gracilariaceae, Rhodophyta) with textorii-type spermatangial conceptacles (subgenus Textoriella Yamamoto) are recorded for the Gulf of Mexico and the Mexican Caribbean: Gracilaria blodgettii, G. cervicornis, G. mammillaris, and G. tikvahiae. The general distribution of the subgenus for Central America, both Pacific and Atlantic, displays a disjunct pattern explainable based on the geologic vicariant events that interrupted the connection between Pacific and Atlantic at the Isthmuses of Panama (closed 3.1-2.8 million years ago), and Tehuantepec (southern Mexico, closed 4-3.5 million years ago). Gracilaria cuneata/G. crispata, and G. mammillaris (G. hayi)/G. veleroae are 2 pairs of sibling species, or sister taxa, that diverged as a result of the final emergence of the Isthmus, and of the same age as the Central American Isthmus itself. Se registran 4 especies de Gracilaria (Gracilariaceae, Rhodophyta) con conceptáculos espematangiales tipo textorii- (subgénero Textoriella Yamamoto) para el golfo de México y Caribe mexicano: Gracilaria blodgettii, G. cervicornis, G. mammillaris y G. tikvahiae. La distribución general del subgénero para Atlántico y Pacífico de Centroamérica despliega un patrón disyunto explicable por los eventos geológicos vicariantes que interrumpieron la conexión entre Pacífico y Atlántico en los istmos de Panamá (cerrado hace aprox. 3.1-2.8 millones de a os) y Tehuantepec (sur de México, cerrado hace aprox. 4-3.5 millones de a os). Gracilaria cuneata/G. crispata y G. mammillaris (= G. hayi)/ G. veleroae corresponden a 2 pares de especies hermanas que divergieron como resultado de la emersión del istmo, y con aproximadamente la misma edad del istmo centroamericano.
Colonization and growth of crustose coralline algae (Corallinales, Rhodophyta) on the Rocas Atoll
Villas B?as, Alexandre Bigio;Figueiredo, Marcia A. de O.;Villa?a, Roberto Campos;
Brazilian Journal of Oceanography , 2005, DOI: 10.1590/S1679-87592005000200005
Abstract: crustose coralline algae play a fundamental role in reef construction all over the world. the aims fo this study were to identify and estimate the abundance of the dominant crustose coralline algae in shallow reef habitats, measuring their colonization, growth rates and productivity. crusts sampled from different habitats were collected on leeward and windward reefs. discs made of epoxy putty were fixed on the reef surface to follow coralline colonization and discs containing the dominant coralline algae were fixed on different habitats to measure the crusts' marginal growth. the primary production experiments followed the clear and dark bottle method for dissolved oxygen reading. porolithon pachydermum was confirmed as the dominant crustose coralline alga on the rocas atoll. the non-cryptic flat form of p. pachydermum showed a faster growth rate on the leeward than on the windward reef. this form also had a faster growth rate on the reef crest (0.05 mm.day-1) than on the reef flat (0.01 mm.day-1). the cryptic protuberant form showed a trend, though not significant, towards a faster growth rate on the reef crest and in tidal pools than on the reef flat. colonization was, in general, very slow as compared to that presented by other reef studies. p. pachydermum was a productive crust both in non-cryptic and cryptic habitats.
Presencia simultánea de las fases tetraspororangial y carposporangial sobre el mismo talo en Polysiphonia scopulorum var. villum (Rhodomelaceae, Rhodophyta)
Aguilar-Rosas, Raúl;Aguilar-Rosas, Luis E.;
Revista mexicana de biodiversidad , 2010,
Abstract: mixed tetrasporangial (tetrasporangia) and carposporangial (cistocarps) phases on the same thallus in polysiphonia scopulorum w.h. harvey var. villum (j. agardh) hollenberg (rhodomelaceae, rhodophyta) are described for the first time. the material was collected on octuber, 2004 in the intertidal zone in playa saldamando, baja california, mexico.
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