Results 51 to 60 of about 2,014 (196)
ABSTRACT Fine‐scale environmental drivers shape freshwater mollusc assemblages in urban semiarid rivers. We examined how substrate composition and water chemistry influence mollusc richness and abundance along a polluted stretch of a river in the Brazilian semiarid region. Surveys at five sites recorded 2479 individuals.
Lucas Ariel Sousa Aguiar +4 more
wiley +1 more source
This study was aimed at determining the performance of some indices and community attributes frequently used to assess river quality and test the role of macroinvertebrate taxa richness as element of bioindication in several coastal tropical streams of western Esmeraldas (Ecuador). In addition, a macroinvertebrate taxon list of this region was provided
Carlos Martínez-Sanz +4 more
wiley +1 more source
SAÚDE AMBIENTAL E CONDIÇÕES DE BALNEABILIDADE EM COLEÇÃO HÍDRICA DO MÉDIO RIO DOCE (MG)
O objetivo deste trabalho foi avaliar a saúde ambiental de cinco lagoas: da Prata, do Pau, Vermelha, Silvana e Nova, em uma região do Médio Rio Doce no Estado de Minas Gerais, Brasil.
Marcelo Marcos Magalhães +2 more
doaj +1 more source
Distribution and diversity of benthic macroinvertebrates in the Mohlapitsi River, South Africa
Freshwater ecosystems are facing degradation from human activities in the form of alterations of flow regimes, changes in land-use, and intensive water abstraction, in turn generating adverse effects on biodiversity and ecological functionality ...
M. E. Raphahlelo +2 more
doaj +1 more source
Biologi dan Ekologi Thiaridae (Moluska: Gastropoda) di Danau Sentani Papua
Lake Sentani has been subjected to multi-pronged  pressures, involving both internal and external factor.  Yet, ecologists researching the lake generally, conduct studies on water quality, but less attention was paid towards faunal diversity and biological resources potentials of the lake.
openaire +1 more source
Morphological and Genetic Variation Between the Japanese Populations of the Amphidromous Snail Stenomelania crenulata (Cerithioidea: Thiaridae) [PDF]
Freshwater gastropods often have limited dispersal capability and small geographic ranges, and face severe threats from habitat loss and degradation. However, in addition to the scarcity of knowledge on their life history traits, species taxonomy has not been adequately resolved and boundaries between intra- and interspecific variation remain unclear ...
Hiroka, Hidaka, Yasunori, Kano
openaire +2 more sources
Consequences of Physical Disturbance by Tadpoles and Snails on Chironomid Larvae
Indirect interactions among community members impact on organisms. The effects of two snails, banded pond snail, Bellamya bengalensis (Lamarck), and Red‐rimmed melania, Melanoides tuberculata (Müller), and tadpoles of Asian common toad, Duttaphrynus melanostictus (Schneider), on nonbiting midge larvae, Chironomus striatipennis Kieffer, were observed in
Gargi Pal +4 more
wiley +1 more source
Teknologi Dalam Arkeologi [PDF]
Pada penerbitan kali ini kita berbicara tentang teknologi dalam kajian arkeologi. Sejak masa prasejarah manusia menunjukkan kemampuan dalam memanfaatkan bahan-bahan yang disediakan oleh alam.
Christyawaty, Eni +5 more
core
ABSTRACT Freshwater mussels are a globally threatened taxon, but little is known about population trajectories for species outside Europe and North America. To contribute to understanding of mussel conservation status outside these regions, we surveyed mussel and other invertebrate populations in waterbodies across Dhaka, Bangladesh, to assess ...
Isobel Ollard +3 more
wiley +1 more source
Macroinvertebrates and physicochemical parameters were assessed at 15 sites along five rivers in Kilimanjaro region, Tanzania, with the aim of understanding their ecological status and setting a base to the development of a biological index for tropical regions.
Julius D. Elias +4 more
wiley +1 more source

