species (taxonomic group) per site database including environmental information
specify:
Environmental data, fish abundances and biomass
data type:
point data/observation data
short description of the dataset/summary:
This dataset represents metadata from the paper Yunoki, T. and Torres, L. V. (2015): The role of water chemistry, connectivity and piscivory for ecological and evolutionary process structuring a fish metacommunity in the Bolivian Amazonian lowland.
This study documents the spatial dynamics of fish metacommunity based on the dataset of 65 sites in two geographic patches of transparent black and clear waters of the Amazonian Manuripi and Itenez Rivers, which are separated by river valleys with turbid waters originating in the Andes and the savanna.
Aguas y peces del TCO Itonama y Parque departamental-Área natural de manejo integrado Itenez, Beni-Bolivia. Medio Acuático 1: 4-16.
http://es.scribd.com/doc/87178969/Revista-Medio-Acuatico-N%C2%BA-1#scribd. Accessed 24 February 2015.
year:
2010
reference 2:
author(s):
Yunoki, T. and Torres, L.
title:
Aguas y peces del Mamoré central, Beni-Bolivia. Medio Acuático 2: 4-25.
http://es.scribd.com/doc/83691388/REVISTA-MEDIO-ACUATICO-N%C2%BA2#scribd. Accessed 24 February 2015.
year:
2011
reference 3:
author(s):
Yunoki, T. Torres, L. and Yagami, T.
title:
Condiciones opticas y comunidades ictícolas en aguas blancas y negras, Ríos Tahuamanu, Manuripi y Madre de Dios, Amazonía Boliviana. Rev Cient Agro Amaz 1: 1-17.
http://www.revistasbolivianas.org.bo/scielo.php?script=sci_arttext&pid=S2307–96062013000200001&lng=es&nrm=iso. Accessed 05 January 2015
Lake connectivity was estimated using satellite imagery (Google Earth) and topography and was expressed by an ordinal variable transformed to ranks, where 1: connected; 2: near river channel; 3: away from the river channel, and 4: isolated.
This study was developed as a collaboration between Beni University (Universidad Autónoma del Beni 'José Ballivián'), Pand University (Universidad Amazónica de Pando), OGN HERENCIA, and OGN Hombre Naturaleza. The Nacional Park (Servicio Nacional de Areas Protegidas, SERNAP) provided assistance with fieldwork in the Manuripi (Reserva Nacional de Vida Silvestre Amazónica Manuripi) and the Isiboro Sécure (Parque Nacional Territorio Indígena Isiboro Sécure). The Bolivian Army assisted with fieldwork in the Tahuamanu, Manuripi, and Madre de Dios Rivers.
Data were collected during the dry season in 2001, 2002, and 2007, once at each site.
time series data:
no
comments:
Sampling dates are provided.
taxonomic resolution:
genus, species
other/specify:
gr. cf.
percentage of species level data:
91
comments:
Peixes do rio Madeira Vols. I, II, and III (Jardim et al. 2013) provided the taxonomy of those species not yet described. We consider that the identifications based on Jardim et al. (2013) are species level, but gr. and cf.
taxonomic coding:
taxalist according to:
Catalog of Fishes
reference(s):
Eschmeyer, W.N. (ed). Catalog of Fishes: Genera, Species, References. (http://researcharchive.calacademy.org/research/ichthyology/catalog/fishcatmain.asp). Electronic version accessed 23 July 2014.
sample specifications:
quantitative
replicate samples:
no
number of samples:
65
specification of method(s) used for sampling and sorting:
At each site, gill nets were deployed for 2 h each in the evening (17:30-19:30) and the morning (5:30-7:30). Gill nets (25 m long by 2.5 m high) extended from the lakeshore to a calm area in the river channel. Fish were sampled using 13 nets of varying mesh sizes: 10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80, 90 and 110 mm. CPUE was calculated for each species and site as the total number of individuals captured in all gill nets during 4 h (2 h each in morning and evening). The unit for the fish biomass is grams.
Were any quality control procedures applied to your dataset?
yes
quality control protocols and comments:
Fish were fixed in 4% formaldehyde and later preserved in 75% ethanol. Voucher specimens of each species were deposited in the fish collection of the Universidad Autónoma del Beni 'José Ballivián' (CIRA-UAB). Catalog number and collection code were included.
