Results 91 to 100 of about 16,291 (235)

Comparative Assessment of Freshwater Biodiversity in Los Morales Reservoir (Madrid) Using eDNA Collected From Sponges and Water Filtration

open access: yesEnvironmental DNA, Volume 8, Issue 3, May–June 2026.
Filters and freshwater sponge tissue recover a comparable number of taxa through eDNA metabarcoding. Filters detect more taxa, followed by sponge tissue when host‐blocking primers are used. Each method reveals different community compositions, so combining both approaches is recommended to achieve a more realistic representation of the metazoan ...
Andrea Corral‐Lou   +8 more
wiley   +1 more source

Unraveling Long‐Term Microsporidia Diversity and Dynamics in Lake Aydat (France) Through Paleogenomics

open access: yesEnvironmental DNA, Volume 8, Issue 3, May–June 2026.
Sedimentary ancient DNA study revealed 138 years of hidden microsporidian (unicellular eukaryotic parasite) diversity and host–parasite dynamics in a freshwater lake. A major community shift in the 2000s, linked to anthropogenic pressures, shows how paleogenomics reveals the diversity and long‐term ecological trajectories of these previously overlooked
Léa Combes   +7 more
wiley   +1 more source

ƯƠNG ẤU TRÙNG CÁ BÓP (RACHYCENTRON CANADUM) VỚI CÁC LOẠI THỨC ĂN KHÁC NHAU

open access: yesTạp chí Khoa học Đại học Cần Thơ, 2013
Nghiên cứu này nhằm tìm được loại thức ăn thích hợp cho giai đoạn ương ấu trùng (cá bột) lên cá hương, go?p phâ?n xây dựng quy trình sản xuất giống cá bóp.
Trần Ngọc Hải   +3 more
doaj  

THE EFFECT OF FEEDING NATURAL FEED TYPES OF ARTEMIA AND ROTIFERA WITH DIFFERENT COMPOSITIONS ON MAINTAINING OF SNAKEHEAD LARVAE (CHANNA STRIATA)

open access: yesRussian Journal of Agricultural and Socio-Economic Sciences, 2023
The purpose on this research is to analyze and evaluate the survival and growth of the snakehead larvae (Channa striata) with different natural feeds. This study used an experimental method with a Completely Randomized Design (CRD) with 3 treatments and ...
Adriani M., Akbar J., Yusuf M.
doaj   +1 more source

Migration rate, timing of sex, and resident genetic diversity jointly shape effective gene flow during rotifer colonization

open access: yesLimnology and Oceanography, Volume 71, Issue 5, May 2026.
Abstract Dispersal is a complex process that affects all living organisms, with the settlement phase being particularly critical. This phase depends on the interaction between the environmental conditions of the new habitat and the biological traits of both resident and immigrant populations.
Cristina Arenas‐Sánchez   +4 more
wiley   +1 more source

Substituição de Artemia sp. pelo rotífero Brachionus plicatilis na larvicultura do camarão-d'água-doce (Macrobrachium rosenbergii De Man, 1879) Replacement of the Artemia sp. for the rotifer Brachionus plicatilis in the hatchering of the freshwater prawn (Macrobrachium rosenbergii De Man, 1879)

open access: yesRevista Brasileira de Zootecnia, 2004
Conduziu-se o presente trabalho com o objetivo de avaliar o efeito da substituição dos náuplios de Artemia sp. pelo rotífero enriquecido e congelado (Brachionus plicatilis, O.F. Müller, 1786) sobre a sobrevivência e peso seco das larvas.
Luciana Almada Thomaz   +4 more
doaj   +1 more source

Ecosystem size reverses the effect of the spatial coupling between autotrophic and heterotrophic ecosystems

open access: yesOikos, Volume 2026, Issue 5, May 2026.
The flow of non‐living resources between autotrophic and heterotrophic ecosystems can impact their ecosystem function. However, ecosystem size is similarly known to influence ecological properties and it is uncertain how the size of coupled ecosystems mediates the effect of resource flows.
Emanuele Giacomuzzo   +3 more
wiley   +1 more source

Enrichment of rotifer Brachionus rotundiformis with calcium [PDF]

open access: yes, 2007
Possibility of enrichment of rotifer (Brachionus rotondiformis) with calcium (Ca) for feeding the fish fry was investigated. Rotifer was kept for 24 h with aeration in normal seawater (Treatment 1), seawater with 400 mg/l supplemental Ca from Ca-lactate (
Furuichi, M.   +2 more
core  

The impact of impoundment on the rotifer communities in two tropical floodplain environments: interannual pulse variations

open access: yesBrazilian Journal of Biology
Hydrological pulses are the main factor regulating the structure of biological communities in floodplains. Reservoirs above this ecosystem change the environment's dynamics and the community's biodiversity.
CC. Bonecker, ASM. Aoyagui, RM. Santos
doaj   +1 more source

Differentiation between activity of digestive enzymes of Brachionus calyciflorus and extracellular enzymes of its epizooic bacteria

open access: yesJournal of Limnology, 2009
The rotifer Brachionus calyciflorus was examined by scanning electron microscopy (SEM) for surface-attached, i.e. epizootic, bacteria to ascertain their specific localization and thus find out if we could discern between rotifer and bacterial enzyme ...
Wilko H. AHLRICHS, Martina ŠTROJSOVÁ
doaj   +1 more source

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