Wszystkie pola: stickleback - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Changes in levels of infection with Schistocephalus solidus (Müller 1776) of the three-spined stickleback Gasterosteus aculeatus (Actinopterygii: Gasterosteidae) from the Gdynia Marina
Autorzy:: Morozinska-Gogol, J.
Powiązania:: https://bibliotekanauki.pl/articles/48831.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: parasite
infection
Schistocephalus solidus
three-spined stickleback
stickleback
Gasterosteus aculeatus
Actinopterygii
Gasterosteidae
Gdynia Marina
Gdansk Gulf
environmental factor
salinity
environment change
pollution
Opis:: This paper analyses the changes in the level of infection with the freshwater parasite Schistocephalus solidus of the three-spined stickleback from the Gdynia Marina. Environmental factors such as salinity, pollution and eutrophication or the presence of other species affect the transmission of parasites. Infection indices have been increasing since the 1990s. Differences in the infection level of morphological forms were also found: this may be due to their environmental preferences.
Źródło:: Oceanologia; 2011, 53, 1
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Reproductive cycle and the related spatial and temporal distribution of the ninespine stickleback (Pungitius pungitius L.) in Puck Bay
Autorzy:: Sokolowska, E.
Skora, K.E.
Powiązania:: https://bibliotekanauki.pl/articles/48433.pdf
Data publikacji:: 2002
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: Pungitius pungitius
ninespine stickleback
reproductive cycle
temporal distribution
Puck Bay
breeding period
spawning
spatial distribution
maturity stage
Opis:: The cycle of gonad development and related changes in the length structure and spatial-temporal distribution of ninespine sticklebacks (Pungitius pungitius L.) in Puck Bay were studied. Observations were carried out in the shallow shore zones, as well as in the deeper epipelagic zone of the Bay. Ninespine sticklebacks reproduce in the brackish environment of Puck Bay, breeding in its warmer, inshore zones. Reproduction takes place in the spring and summer months, from April to July. One female spawns several clutches of eggs during one breeding season. The average length of ninespine sticklebacks in Puck Bay was about 40 mm, and the sex ratio in the population was close to 1:1. However, both length structure and sex ratio were subject to local and periodic variations, resulting from possible breeding-related territorial divisions. Higher gonadosomatic indices in females in early spring represented the transition of fish to the advanced vitelligenous phase. The lowest GSI of males during the breeding season indicated the termination of spermatogenesis. The completion of spawning in August started a new process of gonad restoration to prepare the fish for the next breeding season.
Źródło:: Oceanologia; 2002, 44, 4
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Annual reproductive cycle in two free living populations of three-spined stickleback (Gasterosteus aculeatus L.): patterns of ovarian and testicular development
Autorzy:: Sokolowska, E.
Kulczykowska, E.
Powiązania:: https://bibliotekanauki.pl/articles/47889.pdf
Data publikacji:: 2006
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: free living population
stickleback
gonad
environment change
reproductive cycle
wild population
Oliva Stream
natural habitat
fresh water
breeding
Vistula River
Gasterosteus aculeatus
spermatogenesis
vitellogenesis
Opis:: The annual reproductive cycle in two wild populations of three-spined stickleback was studied. Sticklebacks from the Dead Vistula River (Martwa Wisła) (brackish water) and the Oliva Stream (Potok Oliwski) (freshwater) were exposed to annual environmental changes in their natural habitats. Ovaries and livers (females), and testes and kidneys (males) were collected during 1–2 years. The gonadosomatic IG, hepatosomatic IH, nephrosomatic IN indices, kidney epithelium height (KEH) and size of oocytes were calculated. The number of mature oocytes and percentage of ovulating females were determined during the spawning season. Histological changes in the ovaries and testes were described throughout a year. Annual reproductive cycles were similar in both populations of sticklebacks. This is the first histological and morphological study carried out throughout a year, simultaneously in two wild populations of three-spined sticklebacks inhabiting different environments. An improved scale of gonadal development in conjunction with the determined indices and fecundity give a comprehensive description of the reproductive cycle. These newobserv ations, in combination with previously reported features, provide a universal scale that can be successfully used to distinguish all phases of gametogenesis in sticklebacks in different habitats.
Źródło:: Oceanologia; 2006, 48, 1
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Changes in the parasite communities as one of the potential causes of decline in abundance of the three-spined sticklebacks in the Puck Bay
Autorzy:: Morozinska-Gogol, J.
Powiązania:: https://bibliotekanauki.pl/articles/47772.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:: parasite
three-spined stickleback
Puck Bay
Baltic Sea
freshwater ichthyofauna
Baltic ichthyofauna
Gasterosteus aculeatus
coastal water
Źródło:: Oceanologia; 2015, 57, 3
0078-3234
Pojawia się w:: Oceanologia
Dostawca treści:: Biblioteka Nauki

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