Ecology of the parasitic endohelminth community of Piaractus mesopotamicus (Holmberg, 1887) (Characiformes) from Aquidauana and Miranda Rivers, Pantanal, state of Mato Grosso do Sul, Brazil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Ecology of the parasitic endohelminth community of Pseudoplatystoma fasciatum (Linnaeus, 1776) (Siluriformes: Pimelodidae) from the Aquidauana River, Pantanal, State of Mato Grosso do Sul, Brazil

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

The fish community of the Sorocaba River Basin in different habitats (State of São Paulo, Brazil)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Feeding patterns in a fish community of Baia da Onça, a floodplain lake of the Aquidauana River, Pantanal, Brazil

The stomach contents of 24 species of fish and unidentified species from four genera in a floodplain lake of the Pantanal were studied. Fish were collected during the dry season when the lake was isolated from the main river. A community food ingestion index (feeding index weighted by consumer biomass, FIWCB, where 0 < FIWCB < 1) was calculated to quantify feeding patterns. Detritus and algae ingested by Curimatidae were responsible for 46.5% of the FIWCB, while that for algae ingested by Loricariidae (armoured catfish) accounted for 13.2%. The importance of detritus in fish diets is discussed as a strategy for shortening food chains, thereby increasing community efficiency, and as a consequence, fish biomass. It was learnt that the main route of energy flow in this perennial lake was through the detritus chain. The floodplain lakes function as a dry season feeding ground for small-sized species of fish, which are potential prey for the more highly valued larger species of fish.

The helminth community of Geophagus proximus (Perciformes: Cichlidae) from a tributary of the Paraná River, Ilha Solteira Reservoir, São Paulo State, Brazil

This study aimed to evaluate the helminth parasites of Geophagus proximus from the São José dos Dourados River, a tributary of Paraná River, Ilha Solteira Reservoir, São Paulo State, Brazil. From May 2006 to May 2007, 116 G. proximus specimens were examined and seven different taxa of helminth were collected and identified: proteocephalidean plerocercoids (Cestoda); metacercariae of Austrodiplostomum compactum, Clinostomum heluans and Clinostomum sp. (Trematoda); and Raphidascaris (Sprentascaris) hypostomi, and larvae of Raphidascaris sp. and Contracaecum sp. (Nematoda). All parasites presented the typical aggregated pattern of distribution, as well as the presence of a high number of larval stages, an absence of influence of the host sex and seasonality upon community parameters, as well as a correlation between species richness and host body weight. Moreover, with the exception of A. compactum metacercariae, all helminths found in this study are reported for the first time in G. proximus. Copyright © Cambridge University Press 2012.

Structure and dynamics of the community of periphytic algae in a subtropical reservoir (state of São Paulo, Brazil)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Natural resources: status and trends towards a regional development agenda in Latin America and the Caribbean. Contribution of the Economic Commission for Latin America and the Caribbean to the Community of Latin American and Caribbean States

Includes bibliography.

Economic and Social Panorama of the Community of Latin American and Caribbean States, 2013

Foreword by Alicia Bárcena.

First Forum of China and the Community of Latin American and Caribbean States (CELAC): Exploring opportunities for cooperation on trade and investment

This document is a contribution by the United Nations Economic Commission for Latin America and the Caribbean (ECLAC) to the First Forum of China and Community of Latin American and Caribbean States (CELAC),(Beijing, 8 and 9 January 2015). The document consists of three parts. The first part summarizes the main components of the international economic scenario for Latin America and the Caribbean. The second part provides a brief overview of trade and investment relations between the region and China. And the third part sets out conclusions and recommendations for improving the quality of economic ties between the two trading partners..

Economic and Social Panorama of the Community of Latin American and Caribbean States 2014

This issue of the Economic and Social Panorama of the Community of Latin American and Caribbean States is a contribution by the Economic Commission for Latin America and the Caribbean (ECLAC) to the third Summit of Heads of State and Government of the Community of Latin American and Caribbean States (CELAC), to be held in San José in January 2015. This document is based on excerpts from some of the annual flagships published by the Commission in 2014: Statistical Yearbook for Latin America and the Caribbean 2013 (LC/G.2582-P); Demographic Observatory 2013 (LC/G.2615-P); Economic Survey of Latin America and the Caribbean 2014 (LC/G.2619-P); Preliminary Overview of the Economies of Latin America and the Caribbean 2014 (LC/G.2632-P); Foreign Direct Investment in Latin America and the Caribbean 2013 (LC/G.2615-P); Latin America and the Caribbean in the World Economy 2014 (LG/G.2625-P) “Social Panorama Social of Latin America 2014. Briefing Paper”; as well as the Gender Equality Observatory of Latin America and the Caribbean. Annual Report 2013-2014 (LC/G.2626).

Economic and Social Panorama of the Community of Latin American and Caribbean States 2015

This edition of the Economic and Social Panorama of the Community of Latin American and Caribbean States is a contribution by the Economic Commission for Latin America and the Caribbean (ECLAC) to the fourth Summit of Heads of State and Government of the Community of Latin American and Caribbean States (CELAC), to be held in Quito in January 2016. This document continues the work carried out since the first summit of CELAC held in Santiago and is a testimony to our ongoing commitment to work in collaboration with the countries of the region.

Species composition and abundance of the benthic community of Axiidea

ABSTRACT: The thalassinideans (Axiidea and Gebiidea) encompasses approximately 615 species with reclusive habits, generally confined to extensive galleries burrowed into the sand or mud and, more rarely, in openings in reefs or the cavities of sessile animals such as sponges and coral. These species use the galleries for shelter, feeding and breeding, except during the pelagic larval stage. They inhabit estuaries, bays, lagoons, beaches, seas and both tropical and temperate oceanic areas throughout the world, distributed predominantly in the intertidal zone (mid-littoral and infralittoral zones). The aim of the present study was to assess the species composition and abundance of thalassinideans, comparing two micro-habitats (consolidated and non-consolidated substrates), and determine whether there is a correlation between abundance of the organisms and time of the year, collection sites or salinity. Twelve monthly samplings were carried out between August 2006 and July 2007 over consolidated and non-consolidated bottoms of the upper and lower portions of the mid-littoral zones, with three sub-samplings, totaling 48 monthly samples and 576 in all. A total of 651 individuals were collected – 114 Lepidophthalmus siriboia Felder & Rodrigues, 1993 and 537 Upogebia vasquezi Ngoc-Ho, 1989. There was correlation between the abundance of both species and salinity, but U. vasquezi was more abundant in the rainy season. Lepidophthalmus siriboia appears to prefer non-consolidated substrates, whereas U. vasquezi prefers consolidated substrates. The recruitment period for the callianassid L. siriboia appears to occur in just two periods of the year and is more intense in the dry season, whereas U. vasquezi is more frequent throughout the year. The smallest and largest sizes (carapace length – CL) recorded for L. siriboia were smaller than those recorded for the species in northeastern region of Brazil. CL values for ovigerous females suggest that U. vasquezi reaches sexual maturity at a smaller size than L. siriboia.