Results 141 to 150 of about 129,865 (303)
The role of infusoria and bacteria as food for Cyclopoida in Rybinsk Reservoir [Translation from: Trudy Instituta Biologii Vnutrennykh Vodnany 22(25), 37-42, 1971] [PDF]
, 1980 Despite the fact that it is a long time sinc e the methods of collection and quantitative estimatio n of protozoa were worked out data on the abundance of these animals in freshwaters are not very numerous.
Monakov, A.V., Sorokin, YU.I.
core
Limnology and Oceanography: Methods, EarlyView.Abstract The difficulty of sampling zooplankton communities in situ has driven advancements in autonomous, remote sensing technology. The goal of this paper was to perform a gear comparison study testing the performance of one such piece of technology—a glider‐mounted four‐frequency echosounder—against traditional shipboard methods of measuring ...
Delphine Mossman +3 more
wiley +1 more source
Revista de Biología Tropical, 2012 The freshwater crayfish Cherax quadricarinatus is a tropical species of great interest for aquaculture. Vitellogenin (Vg), a lipoprotein precursor of the vitellum accumulated in spawned eggs, can be synthesized in the ovary and/or hepatopancreas of most ...
Lilian E. Ferré +4 more
doaj
Sampling effort to characterize estuarine macroinfaunal communities in patchy habitats
Limnology and Oceanography: Methods, EarlyView.Abstract Estuarine benthic macroinfauna have aggregated, patchy distributions, making accurate community measurements dependent upon sampling scales. The purpose of this study is to determine the appropriate core sizes and sampling effort needed to characterize benthic infaunal communities in Corpus Christi Bay, Texas, USA.
Paul A. Montagna
wiley +1 more source
Investigating the change of planktonic communities (phytoplankton, zooplankton) in the water of Karun-4 lake in Chaharmahal and Bakhtiari province [PDF]
بومشناسی آبزیانLakes play a vital role in water conservation, biodiversity, tourism and job creation. However, seasonal changes, inflow of sewage and erosion increase the amount of nutrients discharged into the lakes and affect the structure of the ecosystem and the ...
Ruhollah Rahimi +4 more
doaj
EFSA JournalFollowing a request from the European Commission, the Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) was asked to deliver a scientific opinion on the safety of a feed additive consisting of folic acid intended for use as a ...
EFSA Panel on Additives and Products or Substances used in Animal Feed (FEEDAP) +22 more
doaj +1 more source
Macroacaena franconica n. sp. (Crustacea: Brachyura: Raninidae) from the Turonian of S Germany [PDF]
, 2004 Feldmann, Rodney M. +2 more
core +1 more source
China's Competitive Threat to Latin America: An Analysis for 1990-2002 [PDF]
This paper explores China's competitive threat to Latin America in trade in manufactures. The direct threat in exports to third country markets appears small: LAC's trade structure is largely complementary to that of China.
Sanjaya Lall (QEH) and John Weiss
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Lipid correction of hydrogen stable isotope ratios in fish
Limnology and Oceanography: Methods, EarlyView.Abstract Lipids are known to affect stable isotope ratio of organisms, especially δ13C values, and simple arithmetic lipid‐correction procedures have been developed based on the carbon to nitrogen ratio (C : N) that is a proxy for lipid content. Equivalent issues will likely arise with the increasing use of hydrogen isotopes in ecology, but as yet no ...
Kang Wang +5 more
wiley +1 more source
Biodegradable Natural Polymer‐Based Drug Delivery Systems for Bone Tissue Engineering
Medicinal Research Reviews, EarlyView.ABSTRACT The increasing incidence of bone diseases and injuries, especially among aging populations, has underscored the shortcomings of traditional treatments such as bone grafts and metal implants, which often face complications including immune rejection, mechanical failure, and delayed healing.
Hyejin Jo +4 more
wiley +1 more source