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Topics » Aquatic Ecosystems

marine and freshwater aquatic ecology and hydrobiology

  • Bhoopendra Verma
    Is there a correlation between phosphate concentration and production, diversity of zooplankton?
    Is phosphate the limiting factor in diversity? How does phosphate work in aquatic ecosystem to maintain the zooplankton production and diversity?
    Recent replies ⋅ Show All (13)
    • Muvundja Amisi Fabrice replied

      Of course, if it is proved that P is the limiting nutrient for that ecosystem, P bio-availability will boost primary production and thus will enhance the secondary production which comprises

  • Renalda Munubi
    Looking for a protocol to analyze biochemical compounds in periphyton
    I want to analyze protein, essential fatty acids (EPA and DHA) and triglycerides in periphyton (attached algae). Can anyone help me with a simple method on how to preserve and analyze my samples? In
    Recent replies ⋅ Show All (2)
    • Thomas Martin Priester replied

      One of the formost researchers in this area is Amy E. Wright of the Florida Atlantic University (Harbor Branch). She is very approachable and also has lots of graduate students who would be pleased

  • Zdeslav Karlovac
    Highway storm water management and pollution prevention
    I am working on my Ph.D. about highway storm water management and pollution prevention in karst area. Need help me with some literature, guidelines. Highway Rijeka - Zagreb in Croatia passes thru
    Recent replies ⋅ Show All (8)
    • Piotr Rzymski replied

      I have not seen any papers concerning hihway runoff water purification using any hydrobionts you mentioned however this subject sounds very interesting and please check this paper

  • Miss Vineeta Girdoniya
    Is it possible to detect pollutants along with their colour using a fish?
    I have found by working with a species of fish that it shows toxic effects of pollutants on it along with the same colour of pigmentation in the fins, as those of the pollutants. Has anyone else
    Recent replies ⋅ Show All (2)
    • Miss Vineeta Girdoniya replied

      Unfortunately I am not working with Paris green. It was only by coincidence that I saw fishes in my aquarium attacked by some kind of disease. When I treated them with a very low concentration of the

  • Bala Subramanian
    How can I isolate methanogenic bacteria from aquatic sediments?
    Is there any well established methods for culturing such methanogenic bacteria?
  • Miguel A. Olvera-Novoa
    Does somebody know which organism this is growing on the surface of a sea cucumber fry?
    This organism is invading juveniles in a sea cucumber culture.
    Recent replies ⋅ Show All (31)
    • Tatiana Kozlova replied

      OK, it's good to know. About a half of inch?

  • Taheri Reza
    How do phytoplankton remove heavy metals from the marine environment? Which heavy metals are removed from wastewater by phytoplankton?
    We work on 4 species of phytoplankton to remove nitrate and phosphate from wast water and we get the result very well. Now we want to remove heavy metal from wast water through phytoplankton.
    Recent replies ⋅ Show All (8)
    • Timur Pavluk replied

      Cu, Zn, Cd, Pb and many others metalls are adsorbed by planktonic alga. It is well known fact!!! Most of the metalls are binded, as Alireza mentioned above, on the cellulose/silicose shell of an

  • Karnan Chinnadurai
    Is here anybody working with Flowcam? I have some doubts in that.
    Can explain in detail about the Fluorescent filters in the Flowcam VS 2.2.7?
  • Tim Beardsley
    Bill Mitsch of Ohio State University and his colleagues created two artificial freshwater wetlands, one planted, one not, and followed them for 15 years. Both took up a lot of carbon from the air and
    Recent replies ⋅ Show All (1)
    • Melanie D. Harrison replied

      Tim, Thanks for the link I will be sure to check it out. Melanie

  • Muzzammil Iqbal Siddiqui
    How can I draw blood from the Nile Tilapia (Oreochromis niloticus)?
    It is 5 to 6 inches big in size.
    Recent replies ⋅ Show All (3)
    • Benoît Sotton replied

      Directly from heart with a heparinized needle.

  • Sirinimit Boonyuen
    Guideline/standard as the limit for the increased Suspended solids of Turbidity on coral and other marine flora/fauna?
    The offshore dredging and sediment disposal would cause the increased turbidity in the vicinity of the project. Thus, the standard (max limit) for the increased of SS or Turbidity would be very
  • Ashok Kumar Verma
    Is there any breeding technique of unionoids? what is the spawning behavior of freshwater mussels?
    Lamelliden marginalis is a freshwater mussel which can be subjected to freshwater pearl farming. it breeds naturally in fresh waters. fertilization is external. the species is cultured in freshwater
    Recent replies ⋅ Show All (4)
    • Starrlight Augustine replied

      If you do not find previous studies on spawning behaviour, how do you plan to proceed? i.e. what type of data will/can you acquire, what level of detail are you looking for, do you want bioenergetic

  • Ashok Kumar Verma
    one of the designed freshwater pearl produced by a progressive pearl farmer in H.P. at Una.
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