APPENDIX
2.
Working Group on preparation of issues
related to Monitoring of
Mnemiopsis (ML) in the Caspian Sea
Monitoring:
All members of the group have stressed
out an acute need for additional data and organization of permanent monitoring of ML in
the Caspian Sea. There have been considered major possibilities of monitoring arrangement:
Complete environmental monitoring covering
major characteristics of ecosystem;
Partial monitoring focused on ML and (if
possible) on the most crucial characteristics of ecosystem related to ML;
Low cost (public) monitoring proposed by
professor R. Harbison (see related document).
It was mentioned that it is desirable to
organize a specialized cruise to study ML throughout the entire Caspian Sea with full
range of environmental measurements; and that the best timing for such cruise is August.
The representatives of regional
scientific–research organizations provided the following brief information on 2001 work
plan for the first and second types of monitoring:
It is planned to arrange monitoring of ML
practically during all expeditions of CaspNIRKH, including large-scale international
survey of bio resources in July-August and Floating University cruise on the board of a
scientific research vessel (RV) of CaspNIRKH.
It has been planned to organize specialized
researches in the Southern part of Caspian Sea on the board of the small Iranian RV (up to
6 scientists).
The Academy of Sciences of Azerbaijan plans
to arrange monitoring via the network comprising 120 stations in the whole coastal zone of
Azerbaijan three times a year (in spring, summer and autumn).
- OKIOC is planning to conduct a cruise in August 2001 in Kazakh
coastal waters in the northern and central parts of Caspian Sea involving researches of
ML.
Regarding to third point, it has been noted
that not all participants are confident about its feasibility and efficiency for the
region, however in general the attitude to this proposal is positive. It can be used for
gathering of information from the oil platforms, fish protection vessels, fishermen,
students, etc.
Methodology for monitoring and data
processing, catching tools
All participants have emphasized on keen need
for unification of catching tools and methodology, at least for ML.
It was agreed that T. Shiganova and A. Kideys
will voluntarily work out first draft document outlining methodology for data collection
and processing as well as catching tools by 15th of May 2001.
This draft will be sent out for consideration
and comments to all participants and specialized group of experts consisting of T.
Shiganova and M. Vinogradov (Institute of Oceanology, Russian Academy of Sciences), A.
Kideys (IMS METU), H. Negarestan (IFRO), A. Kasimov (Caspian Biological Station), G.
Finenko (Institute of Biology of Southern Seas) and A. Polyanikova (CaspNIRKH), The final
draft of the document will be prepared and sent out to all participants by May 30, 2001.
There have been provided estimates on
availability and costs of plankton nets to study ML. At present, most of regional
organizations do not have such nets. The costs for net may vary from 100 to 500 USD
(depending on design and place of manufacturing). If fund available, the nets can be
produced in Turkey at the beginning of summer. It is necessary to have at least 2 nets per
institution.
A.Kideys has also taken a commitment to work
out a proposal on feasible methodology and catching tools for the “low-cost
monitoring”. The proposal will be delivered to the participants by May 15.
Informational support of ML research
It has been suggested to establish
specialized module MnemiopSIS as a part of CEP Information System on Caspian Sea
(CaspSIS), which will contain the relevant information grouped in the following sections:
- ML Bibliography
- Research Organizations dealing with ML
- Scientists / Experts on ML
- Available Data Sets on ML in the Caspian Sea.
The forms to be filled in will be sent out to
the participant not later than May 15 and information will be collected by the Program
Coordination Unit by May 30.
It has been agreed to create a detailed data
Inventory for Ml on the basis of format the description of which is given on the CEP Web
page (http//www.caspianenvironment.org/Data-DataBases.htm/). The Inventory will be composed by May 30
provided that information will be delivered by organizations owning it before May 15.
There has been briefly discussed a
possibility of creation of a joint data base on ML. The participants noted that it is a
complex issue requiring additional investigation and discussion. In the nearest future,
CEP Program Coordination Unit will send out additional materials pertinent to this issue
to the participants.
There have been proposed and discussed the
following proposals for the laboratory research and modeling section:
Laboratory Study
Mnemiopsis predatory impact on the pelagic
community of the Caspian Sea.
1. Objectives
The main goal of the proposed research is to
find out if the new alien Mnemiopsis will control abundance and structure of
plankton community in the Caspian Sea..
It embraces the following more specific
objectives:
1. To determine hydrophysical and ecological
interaction in planktonic communities in different parts of the Caspian Sea.
2. To determine the functional
characteristics of the plankton populations, especially rates of ingestion, respiration,
growth and reproduction in Mnemiopsis. To develop the prey-predator interaction
simulation model using field and experimental data in mesozooplankton- Mnemiopsis
food chain .
The proposed study will promote the
identification of the relative contribution of M. leidyi predation to the observed
changes in the plankton community biomass of the Caspian Sea.
Results obtained may be used to develop the
ecological model of the Caspian Sea pelagic ecosystem functioning and to gain a better
understanding of ctenophore population dynamics.
2. Research tasks
Determination of ingestion, respiration,
growth and reproduction rates of M. leidyi and the effects of food supply,
body weight, temperature, and salinity on these parameters.
Determination of the chemical composition
(protein, lipids, carbohydrates, glycogen, mono- and polysaccharides) and evaluation of
the ctenophore's condition in the Caspian Sea.
To develop the simulation model describing
prey-predator interaction into mesozooplankton – Mnemiopsis food chain.
To make a comparison of Mnemiopsis population
structure and dynamics as well as its impact on planktonic community in the caspian and
black seas.
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