Preliminary studies on hypophysation technique of induced breeding of Clarias lazera [PDF]
, 1983 Fry supply is still the most serious problem yet to be solved in the culture of Clarias lazera in ponds. The object of the experiment is to compare the effect of fresh pituitary extract with that of the synthetic hormone with a view to determining the ...
Ebietomiye, F.O., Ojo, E.O.
core
Chromium Phytoremediation of Tannery Wastewater using Ceratophyllum demersum
Biosaintifika: Journal of Biology & Biology Education, 2017 Tanning industry produces liquid waste containing heavy metals, especially chromium – harmful for ecosystems and human health. Phytoremediation is a technique that utilizes the physiologicalpotential of plants to transform contaminants to be less or non ...
Yani Suryani +5 more
doaj +1 more source
Biology of the amphipod Gammarus pulex L. in water-bodies of the Leningrad district, and its piscicultural importance [Translation from: Trudy Vsesoyuznogo Gidrobiologicheskogo Obshchestva 7 99-122, 1956] [PDF]
, 1977 Observations and laboratory experiments are summarised that examine the widely discussed issue of what Gammarus pulex feeds on. On the basis of the observations of the authors and data from the literature it can be noted that G.
Borovitskaya, M. P.
core
The remote sensing of aquatic macrophytes Part 1: Color-infrared aerial photography as a tool for identification and mapping of littoral vegetation. Part 2: Aerial photography as a quantitative tool for the investigation of aquatic ecosystems [PDF]
Research was initiated to use aerial photography as an investigative tool in studies that are part of an intensive aquatic ecosystem research effort at Lake Wingra, Madison, Wisconsin.
Adams, M. S., Gustafson, T. D.
core +1 more source
Planta Daninha, 2002 Este estudo foi realizado com o objetivo de se estimar o conteúdo de elementos metálicos presentes em três macrófitas aquáticas submersas, procurando avaliar a participação destas plantas na remoção destes elementos na água e criar base de dados que ...
M.R. Corrêa, E.D. Velini, D.P. Arruda
doaj +1 more source
Inventory of the Decapod Crustaceans (Crayfishes and Shrimps) of Arkansas with a Discussion of Their Habitats [PDF]
, 1980 The freshwater decapod crustaceans of Arkansas presently consist of two species of shrimps and 51 taxa of crayfishes divided into 47 species and four subspecies. The shrimps are represented by Macrobranchium ohione and Palaemonetes kadiakensis.
Bouchard, Raymond W., Robison, Henry W.
core +2 more sources
Planta Daninha, 2003 O objetivo deste trabalho foi avaliar a composição química e bromatológica de três espécies de plantas aquáticas imersas provenientes de operações de controle mecânico, para, posteriormente, determinar a melhor estratégia para descarte e/ou ...
M.R. Corrêa, E.D. Velini, D.P. Arruda
doaj +1 more source
Predation by a cyprinodontid fish, Aphanius mento, on Culex pipiens: effects of alternative prey and vegetation. [PDF]
, 1993 Volume:
core
Macrophyte flora of Croatia [PDF]
, 2013 Makrofiti su biljke koje rastu djelomično ili potpuno u vodi. Prema smještaju i načinu rasta u vodenom okolišu mogu se podijeliti na submerzne makrofite, makrofite ukorijenjene na dnu s plutajućim listovima, makrofite s listovima koji izlaze iz vode i ...
Horvat, Filip
core +2 more sources
Aportaciones al conocimiento de la vegetación acuática flotante, sumergida o enraizada de la provincia de Jaén (S España) [PDF]
, 2011 Se ha estudiado la vegetación acuática de la provincia de Jaén (sureste de España). Para ello, se han seleccionado las cuencas de los ríos Rumblar, Guadalbullón, Arroyo Salado de Cabra de Santo Cristo y Guadalentín, que comprenden toda la diversidad ...
Quesada, J. +2 more
core