Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Changes in the plankton community following introduction of filter-feedingplanktivorous fish
Autore:
Fukushima, M; Takamura, N; Sun, LW; Kagawa, M; Matsushige, K; Xie, P;
Indirizzi:
Natl Inst Environm Studies, Tsukuba, Ibaraki 3050053, Japan Natl Inst Environm Studies Tsukuba Ibaraki Japan 3050053 i 3050053, Japan Tokyo Univ Fisheries, Minato Ku, Tokyo 108, Japan Tokyo Univ Fisheries Tokyo Japan 108 heries, Minato Ku, Tokyo 108, Japan Environm Res Ctr Co Ltd, Tsukuba, Ibaraki 3050028, Japan Environm Res Ctr Co Ltd Tsukuba Ibaraki Japan 3050028 raki 3050028, Japan Chinese Acad Sci, Inst Hydrobiol, Donghu Expt Stn Lake Ecosyst, Wuhan 430072, Peoples R China Chinese Acad Sci Wuhan Peoples R China 430072 an 430072, Peoples R China
Titolo Testata:
FRESHWATER BIOLOGY
fascicolo: 4, volume: 42, anno: 1999,
pagine: 719 - 735
SICI:
0046-5070(199912)42:4<719:CITPCF>2.0.ZU;2-5
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARP HYPOPHTHALMICHTHYS-MOLITRIX; SILVER CARP; LAKE KASUMIGAURA; BIGHEAD CARP; SIZE; PHYTOPLANKTON; PONDS; VAL; EUTROPHICATION; PHOTOSYNTHESIS;
Keywords:
correspondence analysis; enclosure experiments; filter-feeding fish; plankton community; silver carp;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
40
Recensione:
Indirizzi per estratti:
Indirizzo: Fukushima, M Natl Inst Environm Studies, Onogawa 16-2, Tsukuba, Ibaraki 3050053, Japan Natl Inst Environm Studies Onogawa 16-2 Tsukuba Ibaraki Japan 3050053
Citazione:
M. Fukushima et al., "Changes in the plankton community following introduction of filter-feedingplanktivorous fish", FRESHW BIOL, 42(4), 1999, pp. 719-735

Abstract

1. We conducted enclosure experiments in a shallow eutrophic lake, in which a biomass gradient of the filter-feeding planktivore, silver carp, Hypophthalmichthys molitrix Valenciennes, was created, and subsequent community changes in both zooplankton and phytoplankton were examined.2. During a summer experiment, a bloom of Anabaena flos-aquae developed (approximate to 8000 cells mL(-1)) solely in an enclosure without silver carp. Concurrent with, or slightly preceding the Anabaena bloom, the number of rotifer species and their abundance increased from seven to twelve species (1700-14 400 organisms L-1) after the bloom in this fish-free enclosure. Protozoans and bacteria were generally insensitive to the gradient of silver carp biomass.3. During an autumn experiment, on the other hand, large herbivorous crustaceans were more efficient than silver carp in suppressing the algae, partly because the lower water temperature (approximate to 24 degrees C) inhibited active feeding of this warm-water fish and also formation of algal colonies. Heterotrophic nanoflagellate and bacterial densities were also influenced negatively by the crustaceans.4. Correspondence analysis (CA) was applied to the weekly community data of zooplankton and phytoplankton. A major effect detected in the zooplanktoncommunity was the presence/absence of silver carp rather than the biomass of silver carp, whereas that in the phytoplankton community was the fish biomass before the Anabaena bloom, but shifted to the presence/absence of thefish after the bloom.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 19:27:46