Prospección de la zona marino costera de la bahía de Talara (Perú), como herramienta de gestión y ordenamiento ambiental de la bahía / Prospecting of the coastal marine area of Talara Bay (Peru), as a tool for the management and environmental planning of the bay

The studies on the impact of the ENSO phenomenon on climate and environment change have shown that the Bien Dong (Southeast Asia Sea) is strongly influenced by this phenomenon. This paper focuses on analyzing sea surface chlorophyll concentration data in the coastal marine area of Vietnam South Centre from MODIS satellite images of National Aeronautics and Space Administration (US NASA). The analysis results have shown that there is no obvious difference of the chlorophyll anomaly index between El Niño and neutral years. However, in La Niña years the chlorophyll anomaly index is greatly varied and generally inversely proportional to the ONI index, which means chlorophyll anomaly index rises while ONI index falls. The impact has made chlorophyll in summer and autumn of La Niña years higher by 0.22 - 0.38 mg/m3 in comparison with other years. In terms of trends, chlorophyll concentration in the Vietnam South Central Coast fluctuates according to the seasons and months. The average chlorophyll concentration usually reaches its maximum value in the Autumn (Sep. - Nov.), then decreases in the Winter (Dec. - Feb.) and usually reaches the minimum value in the Spring (Mar. - May), then rises gradually in the Summer (June - Aug.). The above results have contributed to improving understanding of the impact of the climatic vagaries on the coastal marine area of Vietnam South Centre, supported scientists and managers in proposing measures to prevent, avoid efficiently, limit and mitigate the damage caused by ENSO, and in having reasonable alternatives in the protection of biodiversity as well as environment in the coastal marine area of Vietnam South Centre. It could be considered as a “small piece” of the overall picture of the impacts of the ENSO phenomenon on global climate change.

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Negocios en la Web, un Mall Virtual.

Revista Científica y Tecnológica UPSE ◽

10.26423/rctu.v2i3.58 ◽

2015 ◽

Vol 2 (3) ◽

Author(s):

Alexis Rocha

Keyword(s):

Market Research ◽

User Requirements ◽

Web Portals ◽

Commercial Development ◽

Marine Area ◽

Building Trust ◽

Competitive Strength ◽

Coastal Marine ◽

Technology Market ◽

The Web

Los negocios hoy en día se han incrementado considerablemente y con el apoyo de la tecnología, muchos comerciantes o empresarios se dedican a implementar sus negocios en la web. Esto fomenta la investigación de mercados, donde se debe desarrollar nuevos productos, servicios o tendencias, en el cual la gente se involucre en el mercado tecnológico, satisfaciendo necesidades de los usuarios y su aplicación se vea fortalecida en portales o sitios web, para contribuir al desarrollo productivo y comercial de la zona marino costera y ser pioneros, con la implementación de un eMall Virtual, ofreciendo información detallada, beneficios y entregando un producto, bien o servicio en el menor tiempo posible, con excelente calidad, rapidez y generando confianza en los negocios. El negocio en la web se orienta a identificar nuevas oportunidades y necesidades que los usuarios demanden; por otra parte, se debe establecer medios de confianza, comunicación y estrategias, para crear una sola fuerza competitiva como pioneros en el mercado, apoyados con el Internet y portales web para transmitir información oportuna, eficiente y eficaz.AbstractBusinesses today have increased considerably and with the support of technology, many traders and businessmen engaged in implementing its business on the web. This encourages market research, which must develop new products, services and trends, which people involved in the technology market, satisfying user requirements and their implementation is strengthened in portals or websites to help productive and commercial development of the coastal marine area and be pioneers, with the implementation of a Virtual eMall, offering detailed, benefits information and delivering a product or service in the shortest possible time, with excellent quality, speed and building trust in business. The business on the web is aimed at identifying new opportunities and needs that users demand; Moreover, it should establish means of trust, communication and strategies to create a single competitive strength as pioneers in the market, supported by the Internet and web portals for delivering timely, efficient and effective information.

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Assessing the distribution and variation characteristics of marine primary productivity in the coastal marine area of Vietnam South Centre

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/964/1/012011 ◽

2022 ◽

Vol 964 (1) ◽

pp. 012011

Author(s):

Nguyen Trinh Duc Hieu ◽

Nguyen Huu Huan ◽

Tran Thi Van ◽

Nguyen Phuong Lien

Keyword(s):

Primary Productivity ◽

El Niño ◽

El Nino ◽

Southern Oscillation ◽

Monsoon Season ◽

Marine Ecosystem ◽

Correlation Coefficients ◽

Northeast Monsoon ◽

Marine Area ◽

Coastal Marine

Abstract Primary production (PP) of phytoplankton plays an essential role in food web dynamics, biogeochemical cycles and marine fisheries. It is used as one of the basic information for evaluating marine ecosystems. In this paper, monthly composite PP data on a 4 km x 4 km grid for the period 2003-2020 was used to evaluate the distributional characteristics of PP in the coastal marine area of Vietnam South Centre. The statistical results show that the climatological average of PP in 18 years reached 449.2 mgC/m2/day, ranged from 272.1 to 14,205.4 mgC/m2/day. The PP has seasonal and spatial variations. In time, the lowest value of PP was in spring, and the highest was in winter; in space, PP tended to decrease from shore to offshore, PP was higher in coastal areas than in the open sea areas. During the northeast monsoon season, PP increased by more than 1000 mgC/m2/day in the coastal area. Meanwhile, in the southwest monsoon season, due to the ecological influence of the upwelling phenomenon, PP increased with a value greater than 1500 mgC/m2/day, distributed along the coastline of Ninh Thuan - Binh Thuan. Primary productivity positively correlated with chlorophyll content but negatively correlated with sea surface temperature with correlation coefficients of 0.9 and -0.6, respectively. There was a weak correlation between PP and ONI with correlation coefficients of -0.23. The temporal-spatial variation of PP was affected by the ENSO (El Niño-Southern Oscillation) phenomenon, the positive phase of ENSO (El Niño conditions) corresponded to lower PP, and the negative phase of ENSO (La Niña conditions) corresponded to higher PP. The research results from this paper can be used as a reference in marine ecosystem management.

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