Results 61 to 70 of about 2,012 (196)

Morphological Characterization of Emerging Cercariae among Lymnaeid Snails from Barangay Cawongan, Padre Garcia, Batangas, Philippines

open access: yesJournal of Parasitology Research, Volume 2018, Issue 1, 2018., 2018
Background and Objectives. Lymnaeid snails are the known intermediate hosts of the liver fluke Fasciola spp. and therefore play an important role in the parasite’s life cycle. The study is conducted to determine specificity of snail host‐parasite interaction and to determine the snail‐trematode infection rate by cercarial emergence, characterizing the ...
Gregorio L. Martin I   +2 more
wiley   +1 more source

SAÚDE AMBIENTAL E CONDIÇÕES DE BALNEABILIDADE EM COLEÇÃO HÍDRICA DO MÉDIO RIO DOCE (MG)

open access: yesRevista Brasileira de Ciências Ambientais, 2016
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

open access: yesJournal of Freshwater Ecology, 2022
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

open access: yesJURNAL BIOLOGI PAPUA, 2018
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]

open access: yesZoological Science, 2014
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

Habitat Structure Shapes Mollusc Assemblages in an Urban Semiarid River: Implications for Conservation and Public Health

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 1, January 2026.
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

Macroinvertebrate Richness Importance in Coastal Tropical Streams of Esmeraldas (Ecuador) and Its Use and Implications in Environmental Management Procedures

open access: yesInternational Journal of Ecology, Volume 2014, Issue 1, 2014., 2014
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

Teknologi Dalam Arkeologi [PDF]

open access: yes, 2011
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  

Consequences of Physical Disturbance by Tadpoles and Snails on Chironomid Larvae

open access: yesThe Scientific World Journal, Volume 2014, Issue 1, 2014., 2014
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

Inventarisasi Keanekaragaman Makrozoobentos Di Daerah Aliran Sungai Brantas Kecamatan Ngoro Mojokerto Sebagai Sumber Belajar Biologi SMA Kelas X [PDF]

open access: yes, 2015
Jenis penelitian ini adalah deskriptif yang dilakukan untuk memperoleh fakta atau data tentang keanekaragaman jenis Makrozoobentos di DAS Brantas Kecamatan Ngoro Mojokerto.
Prihanta, W. (Wahyu)   +2 more
core   +3 more sources

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