Article |
---|
Article name |
Fish Nutrition in Some Small Reservoirs of the Ivan-Arakhley System and Their Potential for Piscicultural Operations |
Authors |
Gorlachyova Y.P.Candidate of Science (Biology), senior research assistant gorl_iht@mail.ru |
Bibliographic description |
|
Section |
|
DOI |
|
UDK |
597. 556. (1–925.16) |
Article type |
|
Annotation |
Small lakes of Zabaikalsky krai are of great value. Among them there are small bodies of
water that are part of the Ivan-Arakhley lakes. Organization of fish nursery farms on the small
lakes is currently topical. One way of these lakes utilization is cultivation of larval whitefish
using natural forage. In this regard, the main factors determining the possibility of settlement and
stock rearing growing species are ecological and morphological characteristics of the small bodies
of water, and availability of necessary food resources. Rational use of all food resources of the
small reservoirs requires nutrition study of both invasive and native fish fauna. The studies have
shown that the conditions of lump in the small lakes are favorable for juvenile Arctic cisco. The
paper reports on nutrition facts for perch, cisco, roach, and silver carp in the small lakes of the
Ivan-Arakhley system. The study shows that basic nutrition for fish studied is growth inhabitants.
Competitive interactions are not observed. When there is a compacted crop of young Arctic cisco
in Lake Karasevo, the deterioration of feeding conditions is observed reflecting in their growth
characteristics. Nutritional analysis of juvenile fish species showed that some lakes can be used
for larvae cisco rearing.
|
Key words |
small reservoirs, fish fauna, nutrition, degree of filling, bolus, zooplankton. |
Article information |
|
References |
1. Vesnina L. V. Dostupnost’ zooplanktona dlja molodi na raznyh jetapah ontogeneza // Resursy
zhivotnogo mira Sibiri: sb. nauch. tr. Novosibirsk: Nauka, Sibirskoe otdelenie, 1990. S. 100–103.
2. Gorlachjov V. P., Gorlachjova E. P. Pitanie molodi omulja v oz. Arahlej // Problemy jekologii
Pribajkal’ja. Vyp. 1: Produktivnost’ vodnyh jekosistem. Irkutsk, 1979. S. 115–116.
3. Gorlachjova E. P. Rol’ obitatelej zaroslej v pitanii molodi ryb // Aktual’nye voprosy izuchenija
mikro-mejobentosa i fauny zaroslej presnovodnyh vodojomov. N. Novgorod: Vektor TiS. 2007. S. 143–147.
4. Kuharchuk S. P. Jekologija bajkal’skogo omulja v jevtrofnyh vodojomah. Novosibirsk: Nauka,
Sib. otd-e, 1986. 124 s.
5. Metodicheskoe posobie po izucheniju pitanija i pishhevyh otnoshenij ryb v estestvennyh uslovijah.
M.: Nauka, 1974. 254 s. |
Full article | Fish Nutrition in Some Small Reservoirs of the Ivan-Arakhley System and Their Potential for Piscicultural Operations |