Article

Variabilidad temporal de pequeña escala en el fitoplancton de Bahía Independencia, Pisco, Perú

Authors:
To read the full-text of this research, you can request a copy directly from the authors.

Abstract

Temporal variations at small scale of the coastal marine phytoplankton assemblages were studied. Water samples were collected at a fixed station in Bahia Independencia (Pisco-Peru). The sampling took place in the morning (08:00 h.) and afternoon (15:00 h) over a period of 29 days (March 28 to April 25, 1988). Surface temperatures also were taken, fluctuating from 15,4 °C to 17,2 °C. Diatoms were the principal component of the phytoplankton community and were more related with the total of phytoplankton. Other groups as Dinoflagellates, Coccolitophorids, Silicoflagellates and small flagellates were present but were less important. Skeletonema costatum was the dominant specie during the first nine days of sampling, after that it was substituted by Thalassionema nitzschioides, which remained as dominant until the end of the study. Small variation in species composition but large fluctuations in density of phytoplankton were recorded over a period of few hours. Small increments in temperature influenced in the phytoplankton assemblages.

No full-text available

Request Full-text Paper PDF

To read the full-text of this research,
you can request a copy directly from the authors.

... This contrasts with patterns reported in other studies of phytoplankton composition carried out at tropical latitudes in which diatoms dominate in terms of species number. [7][8][9]22 Phytoplankton are considered to be good indicators of water conditions in neritic and oceanic masses. 23,24 Dinoflagellates are better adapted to the oceanic environment, while diatoms are more adapted to coastal environments. ...
... The dinoflagellate N. belechii dominated at the end of the dry season and beginning of the rainy season (May to June), while different diatom species dominated during the rainy season (Table 1). Changes in phytoplankton community structure have been associated with small changes in water temperature 9,22 or with the different strategies used by phytoplankton groups to absorb available nutrients in the water column. 6 The higher abundance of some dinoflagellate species in June and August may, therefore, be associated with warmer temperatures during these months since high temperatures favor growth in some dinoflagellate populations ( Figure 1). ...
... Total richness (87 species) in the study area was within the species number range reported for other locations in Mexico 26 and other countries with similar climatological conditions. 7,8,22 The diversity values recorded here are similar to those reported for other locations in the tropical Pacific. 8 The higher diversity values recorded in the months of July (3.2) and October (3.23) can be attributed to the fact that some species' dominance diminished, whereas in other months these species' abundances (and therefore their dominance) remained fairly constant (evenness ≥0.60, ...
Article
Full-text available
Species composition and abundance of the phytoplankton community in Acapulco Bay, Mexico, were studied from May to December 2009. Samples were collected at 5 stations (4 coastal and one oceanic) at 3 depths (1, 5 and 10 m). Eighty-seven species were identified: 54 dinoflagellates, 32 diatoms and one sili-coflagellate. The community was structured mainly by adiaphoric species, that is species adapted to both neritic and oceanic environ-ments. Species abundance and composition varied significantly during the sampling period due to increased nutrient concentrations in the rainy season. Dinoflagellate species were more abundant during the dry season, and diatom species dominated numerically during the rainy season.
... Los grupos de especies de fitoplancton, son considerados como buenos indicadores de masas de aguas (Castillo y Vidal, 1982). Los dinoflagelados se encuentran mejor adaptados a los ambientes oceánicos, en tanto que las diatomeas están mejor adaptadas a los ambientes costeros (Castillo, 1984;Peña y Pinilla, 2002 and Gutiérrez-Mendieta, 2006;Ochoa and Tarazona, 2003), or with the employed strategies by different groups of phytoplankton, for the absorbance of nutrients available in the water column (Langlois and Smith, 2001). ...
... Total richness registered (65 species) is within the range of species reported in the study area (Rojas-Herrera et al., 2012) and other localities of Mexico (Varona-Cordero and Gutiérrez-Mendieta, 2006), and other countries with similar weather conditions (Peña and Pinilla, 2002;Ochoa and Tarazona, 2003;Moreira et al., 2007), however, Meave-del Castillo et al., (2012) report that for the Bay of Acapulco and adjacent areas 641 total taxa, belonging to eight algae divisions, the most diverse group was Dinophyta, with 347 taxa, followed by Bacillariophyta with 274 taxa, through a decade of studies, ...
... + Oedogoniales sp. + + + + + + Pediastrum duplex Meyen + + Pediastrum simplex Meyen + + Scendesmus quadricauda (Turpin) Brébisson in Brébisson & Godey + + A maior diversidade de Bacilallariophyta é demonstrada por estudos em diversos estuários e zonas costeiras do mundo, como na laguna Tranca Grande, Peru (MARIANOASTOCONDOR, 2001); na laguna Ortobello, Itália ( NUCCIO et al., 2003); na baia Independência, Peru (OCHOA; TARAZONA, 2003); e na enseada de Coruña, Espanha (VARELA;PREGO, 2003). Outros estudos no Brasil também confirmaram o predomínio deste grupo em vários ecossistemas estuarinos (MELO-MAGALHÃES, 2000; MATOS; TENENBAUM, 2003). ...
Article
Full-text available
Resumo: Objetivou-se caracterizar a estrutura da comunidade fitoplanctônica bem como as principais variáveis abióticas do estuário do rio Apodi-Mossoró, Rio Grande do Norte, Brasil. Foram realizadas coletas mensais durante as marés altas de sizígia e análises de variáveis abióticas e bióticas de julho de 2004 a agosto de 2005 em três pontos (foz, estuário médio e estuário superior). Foram calculadas as médias para cada estação de coleta e período sazonal, além dos atributos de comunidade: riqueza, diversidade e equitabilidade. Para a identificação dos principais fatores responsáveis pela variância dos dados foi realizada a Análise de Componentes Principais, as variações na abundância fitoplanctônica, por sua vez, foram avaliadas usando a Análise de Correspondência e a Análise de Correspondência Canônica. O estuário do rio Apodi-Mossoró é um ecossistema tropical e estável termicamente, influenciado pela sazonalidade dos períodos de estiagem e chuvas. Seu regime de salinidade predominante é o euhalino, podendo variar entre oligohalino e hipersalino em função do balanço hídrico, além disso, seu pH é predominantemente alcalino. Este ambiente pode ser considerado oligotrófico e bem oxigenado. A comunidade fitoplanctônica do estuário esteve composta por 109 táxons infragenéricos, pertencentes a cinco grupos distintos, com Bacilallariophyta apresentando maior contribuição, tanto no aspecto qualitativo (62%) como quantitativo (74%). A riqueza, bem como a diversidade, foi superior em 2004, assim como no período de estiagem, apresentando tendência de diminuição conforme o afastamento da foz e, segundo os atributos de comunidade, esta é de elevada riqueza e bem distribuída, porém, de baixa diversidade. Palavras-chave: Ecossistema Tropical; Índices de diversidade; Rio Grande do Norte. Abstract: The objective was to characterize the structure of the phytoplankton community as well as the main abiotic variables of the Apodi-Mossoró estuary, Rio Grande do Norte, Brazil. Monthly collections were carried out during high tides of syzygy and analyzes of abiotic and biotic variables from July 2004 to August 2005 in three points (estuary, middle estuary and upper estuary). The means were calculated for each collection season and seasonal period, in addition to the community attributes: richness, diversity and equitability. For the identification of the main factors responsible for the data variance, the Principal Component Analysis was performed and the variations in the phytoplankton abundance were evaluated using the Correspondence Analysis and Canonical-Correlation Analysis. The Apodi-Mossoró River estuary is a thermally stable tropical ecosystem, influenced by the seasonality of drought and rainy periods. Its predominant salinity regime is euhaline, which can vary from oligohaline to hypersaline as a function of water balance, and its pH is predominantly alkaline. This environment can be considered oligotrophic and well oxygenated. The phytoplankton community of the estuary consisted of 109 infrageneric taxa, belonging to five distinct groups, with Bacilallariophyta showing the greatest contribution, both in the qualitative aspect (62%) and in the quantitative aspect (74%). Wealth and diversity were higher in 2004, as well as in the dry season, with decreasing trends depending on the distance from the mouth, and according to community attributes, this richness is well distributed but low in diversity.
... La distribución biogeográfica de los organismos planctónicos es discontinua y está determinada principalmente por la temperatura y la salinidad, parámetros que son irregulares entre 0 y 150 m, pero que se hacen más estables a partir de 200 m de profundidad; sin embargo, el fitoplancton requiere de condiciones de luz óptima para fotosintetizar, por lo que su distribución vertical generalmente está asociada a la zona fótica (Ramírez y Giraldo, 2006). En resumen, la estructura poblacional fitoplanctónica varía de acuerdo a los parámetros físico-químicos de los cuerpos de agua en que se desarrollen, siendo la predación por parte del zooplancton y ciertas larvas de peces, elementos que pueden llegar a limitar en gran medida a las poblaciones, lo que tiene una implicación aún mayor si consideramos que la transferencia de energía entre un nivel trófico y otro es limitada, afectando finalmente hasta a el hombre en función de la disponibilidad de los recursos pesqueros (Ochoa y Tarazona, 2003). ...
Article
Full-text available
This study evaluated the impact of abiotic parameters in phytoplankton abundance at standard depths of the water column at a station located 10 miles off Puerto López in 2011 and 2012. A taxonomic identification and quantification of phytoplankton species were performed as well as the temperature and inorganic nutrients were recorded. Phytoplankton featured variations in abundance and distribution, being its values the lower registered for this area with increased cell activity between the surface and 10 m depth, being Nitzschia longissima and Cylindrotheca closterium, typify the phytoplankton community in terms of abundance and permanence registered. The results were validated statistically by: Kruskal-Wallis nonparametric test, canonical correspondence analysis and Spearman rank correlation. The relationships between the phytoplankton and existing oceanographic conditions determined that species Dactyliosolen fragilissimus, Pseudo-nitzschia seriata complex and Leptocylindrus danicus had a strong correlation with the nutrients (nitrite, nitrate and silicate) , the second and third nutrient showed positive influence in the growth of L. danicus in 2011, while for 2012 Cylindrotheca closterium and Pseudo-nitzschia seriata complex and showed strong inverse correlation with temperature and direct with nutrients, specifically strong with nitrite and strong with nutrients, that’s to say, that environmental variables influenced the abundance of phytoplankton. Kewords: seasonality, water column, La Niña, diatoms, Nitzschia longissima.
... Some studies indicate that changes in the phytoplankton community structure might be related to small changes in water temperature [12] [13] or to the different strategies of the phytoplanktonic groups for nutrient absorption in the water column [18]. Hence, the greatest abundances of some of the phytoplanktonic species found during May, September, and October 2012 can be attributed to water temperatures which are significantly warmer [3] [9] sincehigh temperatures can enhance growth of some dinoflagellate populations. ...
Article
Full-text available
Phytoplankton samples were collected in Acapulco Bay during 2011 (January-April and September) and 2012 (April-July, October, and November) with the objective of determining the abundance and species composition. Samples were collected in two stations located in the bay. A total of 82 species were identified: 42 dinoflagellates, 35 diatoms, three cyanobacteria, and two silicoflagellates. Dinoflagellates were more abundant in the dry season, while diatoms dominated during rainy season. At least seven dinoflagellate species were recorded as potentially toxic, which may increase their populations and turn into harmful algal blooms (HABs) if environmental conditions within the bay are modified. In April 2012 a HAB of the non-toxic species Neoceratium balechii was documented.
... (Clarke y Ainsworth, 1993) . Los valores de similitud obtenidos fueron sometidos a un análisis de ordenación multidimensional no-métrica (NMDS) y a un análisis de clasificación jerárquica en modo Q (entre estaciones) y su dendrograma fue construido utilizando el método UPGMA (Ochoa y Tarazona, 2003) . Conjuntamente, se realizó un análisis de similaridad (ANOSIM) para definir si existen diferencias significativas en términos de abundancia de géneros, entre los muestreos considerados de surgencia y no surgencia y los distintos estratos de profundidad considerados en el diseño muestreal (Clarke y Warwick, 1994) . ...
Article
Full-text available
The phytoplankton community structural attributes were evaluated in Granate and Gaira inlets and Taganga Bay in order to establish the community's response to changes in oceanographic dynamics modulated by upwelling and non-upwelling processes throughout the coastal waters of the Magdalena region, Colombian Caribbean, between February and June of 2008, during the main dry and short rainy seasons. Average wind speed divided in the research period in two seasons: February-April (upwelling: S) and June-July (non upwelling: NS) of 2008. In each period (upwelling and non-upwelling), 51-47 genera were identified distributed in 29-28 families, corresponding 78.23-86.19 % to centric diatoms, 16.68-9.47 % to pennate diatoms, 4.57-3.78 %) to cyanobacteria and about 0.50-0.55 %) to dinoflagellates, flagellates, and chlorophyta. The most abundant genera were Chaetoceros(colonial) and Skeletonema(colonial) with a relative abundance of 47-19.57 % and 8.13-60.93 %, respectively, and densities greater than 2000 cel/L. Chlorophyll a concentrations showed low values in this study from 0.72 ± 0.47 mg/m3 during S until 0.15 ± 0.15 mg/m3 during NS. The photosynthetic activity index (IAF1) of 6.34 ± 5.34 indicates either high pigment quality or low zooplankton grazing, representing an optimal phytoplankton physiological state during periods of S. In contrast, the IAF1 low average value of 0.52 ± 0.84 at NS indicates a wide decline in the phytoplankton community's physiological state. A temporal segregation pattern was defined by cell densities from 22142.23 ± 15236.72 cel/L to 13588.58 ± 12608.45 cel/L, for S and NS periods, respectively. Temperature, salinity, and nitrate concentration (0-60 m depth), were the variables that represented the most seasonal changes, and affected the phytoplankton community structure.
... We split the primary and secondary production into 4 compartments (Table 1) from small-sized phytoplankton to larger zooplankton, namely diatoms, micro-, meso-and macrozooplankton. The selection of these compartments was guided by their importance in terms of both abundance (Iriarte and Gonzalez, 2004;Ochoa and Tarazona, 2003) and role in fish diets (Espinoza and Bertrand, 2008;Tam et al., 2008). Data availability was also a major constraint. ...
Article
Full-text available
AbstractThe individual-based trophic model Osmose is applied to the upwelling marine ecosystem off the coast of Peru. The dynamics and life cycle of eight major species of the Peruvian marine ecosystem are explicitly considered in the model. Reference simulations provide an overview of the trophic structure of the Peruvian ecosystem during the period 2000–2006. Results of model calibration and simulations are discussed in the light of current empirical knowledge on the trophic functioning of the Peruvian ecosystem and are compared to outputs obtained recently using the trophic model Ecopath.The impacts on the ecosystem of restoration plans for the depleted hake (Merluccius gayi peruanus) population are explored through two management scenarios: a) a long term reduction of fishing effort targeting hake and b) a moratorium on the hake fishery. The simulations help better understand the recent failure of a 20 month hake moratorium and provide long-term strategic support to ecosystem-based management. Limits of our approach are discussed and recommendations are detailed for future developments of the Osmose model and ecosystem approach to fishery management in the Peruvian context.
Article
Full-text available
Recibido: 14 de Julio de 2019Aprobado: 15 de agosto de 2019El fitoplancton constituye la base de las cadenas tróficas de muchos ecosistemas acuáticos y es susceptible a alteraciones ambientales causadas por fenómenos físicos, biológicos o químicos. En este sentido, el estudio de los parámetros que potencialmente afectan al fitoplancton permitirá un mejor control de los ambientes donde se desarrollan importantes actividades económicas como la pesca, el turismo, entre otras. El propósito del presente estudio fue evaluar la composición y diversidad del fitoplancton en dos sectores en los cuales está dividida la bahía de Manta, sometidos a distintas nivel de impacto ambiental, el Murcielago (M) y los Esteros (E). El estudio se realizó entre julio y agosto del 2017 tomando muestras de fitoplancton una vez a la semana a las 21:00 y a las 08:00 con una red con malla de luz de 50µm. Los arrastres se hicieron desde un bote en transeptos de 300 m de longitud y paralelos a la costa; el primero a 1,8 km del perfil costero y los otros dos a 2 km y 2,2 km, respectivamente. El sector M está más expuesto a las corrientes marinas predominantes y mostró mayor variabilidad térmica. El sector E recibe la descarga de dos ríos y se lo considera más contaminado que el M. Se encontró una correlación positiva entre la temperatura y la abundancia de fitoplancton en M. El fitoplancton estuvo compuesto por 32 familias: 22 de Bacillariophyta, 4 de Dinoflagellata, 4 Haptophytas y 1 Chlorophyta. En M, el fitoplancton fue más abundante (promedio 610,7 ± 780,1 cel ml-1) y diverso (H’=3,27), en comparación con E, donde la abundancia promedio fue 13,6 ± 4,8 cel ml-1 y la diversidad (H’) fue 3,1. La menor abundancia y diversidad en el sector E se atribuyen a un mayor deterioro ambiental y se considera que las familias presentes allí pudieran servir de indicadoras de contaminación ambiental; en particular las diatomeas Chaetocerotaceae, Lithodesmiaceae, Rhopalodiaceae, Melosiraceae y los dinoflagelados Ceratiaceae.}
Article
The experimental culture of marine microalgae with potential for aquaculture was investigated from May to December 2016 at the Universidad Nacional de Trujillo. The collection of 150 ml of microalgae between Puerto Chicama and Puerto Salaverry was carried out with a 20 μ net by horizontal trawling for 15 minutes from a fishing vessel. The sample was preserved with ice to evaluate the microalgal composition and, then, the polyalgal sowing was done in 21, 15 and 11 days to obtain a volume of 2 L with three treatments T1 (TNB-Amino 20-20-20), T2 (Heussler-Merino) and T3 (Humus), three concentrations of nutritional media and three replicates by experimentation. The diatoms that responded to the culture were Skeletonema costatum and Amphiprora alata for treatments T3 and T1. S. costatum is widely used in the feeding of crustaceans in aquaculture
Article
Full-text available
Juan Tarazona, nació el 28 de enero de 1952 y tuve el honor de ser espectador de una parte de su trayectoria académica, desde que fui su alumno, su ayudante, y después ya como colega. El 14 de mayo de 2015 falleció el doctor Juan Leónidas Tarazona Barboza, un alejamiento inesperado, porque la imagen que siempre prodigo el profesor Tarazona fue la de un joven incansable, ávido de emprender investigaciones y afrontar los retos académicos de ligar la ciencia a la sociedad. Siempre esperare verlo así. En estas lineas, como espectador siento que solo podre describir una parte de su trayectoria académica, solo las facetas que pude apreciar, solo el corto momento en que pude aprender de él y colaborar en sus investigaciones.
Article
Full-text available
La Doctora Augusta Noemí Ochoa López, nació un martes 4 de mayo de 1937 en Cañete, Lima. Empezó los estudios de la carrera de biología en la Universidad Nacional Mayor de San Marcos, en 1953, también llevo cursos de la carrera de Educación. Obtuvo su grado de Bachiller en Biología en el año 1966 con la Tesis “Observaciones sobre el Desove de la Anchoveta, Engraulis ringens J., en la zona del Callao”.
Article
Full-text available
RESUMEN: Se examinaron las relaciones entre algunas variables fisicoquímicas y la biomasa fitoplanctónica a corta temporal escala en una zona de la Bahía de Mochima sometida a descargas de aguas servidas en la época de lluvias. Se midió amplitud mareal, salinidad y temperatura, concentración de nutrientes y biomasa fitoplanctónica a 0, 5 y 10 m cada seis horas del 3 al 10/08/2006. Se analizaron las diferencias temporales y espaciales de las variables y las relaciones entre éstas. La máxima amplitud mareal fue de 51 cm; la salinidad (30-40) fue más alta durante la noche lo que coincidió con el cese de la actividad de los pobladores de la localidad. La distribución vertical de la temperatura mostró que la columna de agua se estratificó formándose dos capas (0-5 y 5-10 m). La concentración de nutrientes fue alta (promedios de 4,74, 0,17, 0,45 ìmol l -1 para amonio, nitrito y fosfato, respectivamente) y varió significativamente con respecto a los días. En el caso del nitrito, se observaron diferencias verticales muy significativas. La biomasa fitoplanctónica (0,11-12,39 mg chl a m -3) presentó variaciones diarias y verticales muy significativas que se correlacionaron positivamente con la salinidad y negativamente con la concentración de amonio. La marea influyó sobre la concentración de nitrito y fosfato, posiblemente por la resuspensión de los sedimentos. La precipitacion, las aguas de la laguna de oxidación y el aporte de los sedimentos se relacionaron con las altas concentraciones de nutrientes (> 0,25 μmol l -1) y de biomasa, típicas de aguas eutrofizadas. La variabilidad diaria detectada en la concentración de nutrientes y biomasa fitoplanctónica obliga al aumento en la frecuencia de muestreo durante la época de lluvias. Palabras clave: Concentración chl a, nutrientes, aguas costeras tropicales, bahía de Mochima, Mar Caribe. ABSTRACT: This paper depicts the relation between some physico-chemical variables and phytoplankton biomass over short time periods in a zone of Mochima Bay awash with effluents during the rainy season. From 2 to 10 October 2006, tidal range, salinity, temperature, nutrient concentration, and phytoplankton biomass were measured at 0.5 and 10 m every six hours. Temporal and spatial differences of the variables and their relations among themselves were also analyzed. The maximum tidal range was 51 cm; salinity (30-40) was highest at night, coinciding with activities in the town coming to a halt. The thermal distribution of the water column showed the development of two strata (0-5 and 5-10 m). Nutrient supply was high, the concentration of ammonium, nitrite, and phosphate averaging 4.74, 0.17, 0.45 imol L -1 , respectively; and varying significantly from day to day. Nitrite reflected very significant differences throughout the water column. Very significant differences were also apparent in the daily and vertical distribution of phytoplankton biomass (0.11-12.39 mg chl a m-3), which correlated positively with salinity, and negatively with ammonium concentration. Nitrite and phosphate concentrations were affected by the tide, possibly through resuspension of nutrient load. Rainfall, oxidation pond inflow, and sediment input correlated with the high concentration of nutrients (> 0,25μmol L-1) and phytoplankton biomass, typical of eutrophic bodies of water. The daily variability detected in nutrient concentration and phytoplankton biomass compels more frequent sampling during the rainy season.
Article
Full-text available
Day-to-day variations in coastal marine phytoplanktonic assemblages were studied over a 45 day period and related to changing environmental conditions. Water temperature increased from 17.5 to 23°C. Important fluctuations in water salinity, which normally ranges between 37.5 and 39‰, were recorded. The phytoplankton community sampled was composed mainly of diatoms, whose numbers increased regularly over several days. Leptocylindrus danicus was dominant and was positively correlated to total phytoplankton and total diatom concentrations. Dinoflagellates did not show regular net variations. Some peaks were recorded which may have been caused by sporadic proliferation of well-known coastal species. Variations in chlorophyll a concentration did not parallel increases in total cell numbers, which may have been caused by the introduction of new populations and contamination of samples by benthic diatoms. In the absence of thermal stability, changes in meteorological conditions directly influenced phytoplankton populations. Large daily fluctuations in population numbers and composition were recorded over a short period. Fluctuations were highly significant in successive days. This emphasizes the importance of daily sampling of plankton communities. Changes in meteorological conditions appear to disturb the correlation between parameters. Consequently, frequent sampling may be useful in elucidating many secondary phenomena which could interfere.
Article
A comparison of results from light-saturation experiments and standard productivity measurements of natural phytoplankton populations from the coastal waters off northern Peru revealed that dense, actively growing populations were con-fined close inshore and were highly variable over small space and time scales. Variability in max-imum specific production rate (P^), low NO^/SiO^ concentration ratios and high C:N particulate and assimilation ratios suggested that production in the region was probably nitrogen limited during the study period. Production and nutrient charac-teristics of some "brown" and "blue" water patches suggested that conditioning of upwelled water may have been necessary for production to be enhanced. Population adaptation to prevailing light condi-tions was rapid and at least partially under endo-genous control.
Article
An abstract is not available.
Composición , Abundancia y distribución del fitoplancton frente a la costa del Perú durante el verano 1999
  • F E Chang
  • C Delgado
  • Fernández
Chang, F.; E. Delgado y C. Fernández.1999. Composición, Abundancia y distribución del fitoplancton frente a la costa del Perú durante el verano 1999. Inf. Inst. Mar Perú, 147: 99-108.
Phytoplankton Manual
UNESCO. 1978. Phytoplankton Manual. Monogr. Oceanogr. Methodology, 6, 337 pp.
Variación espacio temporal del fitoplancton frente al Callao, Perú, en 1986 Recursos y dinámica del ecosistema de afloramiento peruano
  • N Ochoa
  • O Gómez
Ochoa, N. y O. Gómez. 1988. Variación espacio temporal del fitoplancton frente al Callao, Perú, en 1986. En: H. Salzwedel y A. Landa (eds): Recursos y dinámica del ecosistema de afloramiento peruano. Bol. Inst. Mar Perú. Vol. Extraordinario, 51-57.
Características del fitoplancton de invierno en Bahía Independencia, Perú
  • S J Sánchez
  • R Tarazona
  • M Flores
  • G Maldonado
  • Carbajal
Sánchez, S.; J. Tarazona, R. Flores, M. Maldonado y G. Carbajal. 1988. Características del fitoplancton de invierno en Bahía Independencia, Perú. En: H. Salzwedel y A. Landa (eds.): Recursos y Dinámica del ecosistema de afloramiento peruano. Bol. Inst. Mar Perú. Vol. Extraordinario, 57-66.
Composición y distribución del fitoplancton en la región de afloramiento de las costas peruanas
  • D Blasco
Blasco, D. 1971. Composición y distribución del fitoplancton en la región de afloramiento de las costas peruanas. Inv. Pesq., 35: 61-112.
La comunidad fitoplanctónica en el litoral peruano durante marzo-mayo 1998
  • E Delgado
  • P Villanueva
Delgado, E. y P. Villanueva. 1998. La comunidad fitoplanctónica en el litoral peruano durante marzo-mayo 1998. Crucero BIC Humboldt 9803-05 de Tumbes a Tacna. Inf. Inst. Mar Perú, 135: 114-120.
Variaciones del fitoplancton en el área de Chimbote durante 1977
  • N Ochoa
  • O Gómez
Ochoa, N. y O. Gómez. 1981. Variaciones del fitoplancton en el área de Chimbote durante 1977. In: A. Landa (ed): Investigación Cooperativa de la Anchoveta y su Ecosistema (ICANE) entre Perú y Canadá. Bol. Inst. Mar Perú, Vol. Extraordinario, 119-129.
Proliferación de primavera del fitoplancton en la Bahía de Valparaíso. II. Dinámica de las comunidades
  • A Alveal
  • S Avaria
Alveal, A. y S. Avaria. 1982. Proliferación de primavera del fitoplancton en la Bahía de Valparaíso. II. Dinámica de las comunidades. Rev. Biol. Mar.,Valparaíso, 18(1): 1-56.
El fitoplancton en el área de Pimentel. Verano de 1972
  • B Rojas De Mendiola
  • M Estrada
Rojas de Mendiola, B. y M. Estrada. 1976. El fitoplancton en el área de Pimentel. Verano de 1972. Inv. Pesq., 40: 463-490.
Características del plancton Mecanismos y procesos que controlan la colonización y recuperación postcatastrófica de recursos bentónicos de importancia económica en dos áreas de diferente productividad del sistema de afloramiento peruano
  • J H Tarazona
  • S Santander
  • S Sánchez
  • S Carrasco
  • Guzmán
Tarazona, J.; H. Santander, S. Sánchez, S. Carrasco y S. Guzmán. 1989. Características del plancton. En: J. Tarazona, C. Paredes y L. Romero (eds.): Mecanismos y procesos que controlan la colonización y recuperación postcatastrófica de recursos bentónicos de importancia económica en dos áreas de diferente productividad del sistema de afloramiento peruano. Univ. Nac. Mayor de San Marcos. Fac. Ciencias Biológicas, 68-169.
El fitoplancton en dos bahías del litoral peruano en abril 1987. Mem. Simp. Internacional de los Recursos Vivos y las Pesquerías en el Pacífico Sudeste
  • E Antonietti
Antonietti, E. 1989. El fitoplancton en dos bahías del litoral peruano en abril 1987. Mem. Simp. Internacional de los Recursos Vivos y las Pesquerías en el Pacífico Sudeste. Viña del Mar. Com. Permanente del Pacífico Sur. Rev. Pacífico Sur. Número Especial.