Results 11 to 20 of about 4,778 (94)

Tadpole body size and behaviour alter the social acquisition of a defensive bacterial symbiont [PDF]

open access: yesRoyal Society Open Science, 2019
Individual differences in host phenotypes can generate heterogeneity in the acquisition and transmission of microbes. Although this has become a prominent factor of disease epidemiology, host phenotypic variation might similarly underlie the transmission
Carl N. Keiser   +3 more
doaj   +1 more source

Interaction between feeding rate and area for periphyton in culture of Nile tilapia juveniles =Interação entre a taxa de arraçoamento e a área para perifíton no cultivo de juvenis de tilápia do Nilo [PDF]

open access: yesActa Scientiarum: Animal Sciences, 2012
The objective of the present work was to determine the effects of the interaction between feeding rate and area for periphyton in rearing aquaria for Nile tilapia. Twenty 25 L polyethylene outdoor aquaria were used to hold experimental fish.
Francisco Jackes Rodrigues da Silva   +4 more
doaj   +1 more source

Ecotypes of Aquatic Plant Vallisneria americana Tolerate Different Salinity Concentrations

open access: yesDiversity, 2020
Increased salinity caused by saltwater intrusion or runoff from de-icing salts can severely affect freshwater vegetation and deteriorate aquatic ecosystems.
Mohsen Tootoonchi   +5 more
doaj   +1 more source

Early skeletal colonization of the coral holobiont by the microboring Ulvophyceae Ostreobium sp.

open access: yesScientific Reports, 2018
Ostreobium sp. (Bryopsidales, Ulvophyceae) is a major microboring alga involved in tropical reef dissolution, with a proposed symbiotic lifestyle in living corals.
A. Massé   +4 more
doaj   +1 more source

Research on the homeostatic regulation of ecological fish tanks in human environment [PDF]

open access: yesE3S Web of Conferences
Indoor fish tanks have become an important device for enriching the home environment and improving indoor ecology. In order to investigate the ecological homeostatic regulation of fish tanks under the combination of traditional fish culture and modern ...
Li Leijing   +6 more
doaj   +1 more source

Extreme phenotypic plasticity in metabolic physiology of Antarctic Demosponges

open access: yesFrontiers in Ecology and Evolution, 2016
Seasonal measurements of the metabolic physiology of four Antarctic demosponges and their associated assemblages, maintained in a flow through aquarium facility, demonstrated one of the largest differences in seasonal strategies between species and their
Simon Anthony Morley   +5 more
doaj   +1 more source

The Impact of Food Enrichment on the Behavior of Cownose Ray (Rhinoptera bonasus) Kept under Human Care

open access: yesJournal of Zoological and Botanical Gardens
The cownose ray (Rhinoptera bonasus) faces vulnerability primarily due to unregulated fishing, resource overexploitation, and habitat degradation.
Isabella Brosens Barros   +6 more
doaj   +1 more source

Assessing marine microbial induced corrosion at Santa Catalina Island, California

open access: yesFrontiers in Microbiology, 2016
High iron and eutrophic conditions are reported as environmental factors leading to accelerated low-water corrosion, an enhanced form of near-shore microbial-induced corrosion.
Gustavo Antonio Ramírez   +10 more
doaj   +1 more source

Oligochaetes (Oligochaeta): dero furcata, sludge worm, Enchytraeus albidus and grindal worms as valuable food objects in fish farming (review)

open access: yesRibogospodarsʹka Nauka Ukraïni, 2019
Purpose. To analyze literature sources and summarize the obtained information on the vermiculture of such species of the subclass of Oligochaeta worms as: aulophorus (Dero furcata), sludge worm (Tubifex tubifex), potworm (Enchytraeus albidus), grindal ...
N. Kolesnyk   +4 more
doaj   +1 more source

Water column occupation by males of Trichogaster leeri (Bleeker, 1852) (Perciformes, Osphronemidae) in aquarium
Ocupação da coluna da água por machos de Trichogaster leeri (Bleeker, 1852) (Perciformes, Osphronemidae) em aquário

open access: yesSemina: Ciências Biológicas e da Saúde, 2010
Trichogaster leeri is considered a peaceful fish and widely used in aquariums for the beauty of its colors. This study aimed to evaluate the occupation of water column by adult males when kept with other males of the same species. Three 35 cm-long, 22 cm-
Oscar Akio Shibatta   +4 more
doaj   +1 more source

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