Pregled bibliografske jedinice broj: 368537
Age, growth and condition index of Callista chione in the eastern Adriatic Sea
Age, growth and condition index of Callista chione in the eastern Adriatic Sea // Euromalac 2008 / Ávila, Sérgio (ur.).
Ponta Delgada: Marine Paleogeographic Working Group, 2008. str. 41-41 (predavanje, nije recenziran, sažetak, znanstveni)
CROSBI ID: 368537 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Age, growth and condition index of Callista chione in the eastern Adriatic Sea
Autori
Kuzmanić, Marina ; Ezgeta, Daria ; Peharda, Melita ; Isajlović, Igor
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Euromalac 2008
/ Ávila, Sérgio - Ponta Delgada : Marine Paleogeographic Working Group, 2008, 41-41
Skup
Euromalac 2008
Mjesto i datum
Ponta Delgada, Portugal, 02.09.2008. - 06.09.2008
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
condition index; age; growth; adriatic; ecology; bivalve
Sažetak
The smooth clam Callista chione (Linnaeus, 1758) is a shallow-burrowing filter feeding Venerid bivalve that inhabits sandy sediments. Although this is common and commercially valuable species there is still lack of information regarding its biology and ecology. The main objectives of this research were to obtain information of growth, age and condition index of Callista chione from the Kaštela bay. Samples were collected monthly from commercial catch in the period from July 2007 till May 2008 in the Kaštela bay. Shells were aged based on formation of growth rings on the external shell surface and on formation of internal growth bands. Gathered data were fitted to the von Bertalanffy growth function for height. Growth parameters (H∞ and k) were estimated using Gulland – Holt plot where growth rates were plotted against the mean height and relative growth function was constructed. Age and growth rate data showed that this is a long – living species with the most intensive growth during first year. Growth rate decreased with age and after 8 years growth rate is reduced to about 1mm per year. Based on two methods applied, modified Von Bertalanffy equations for height were constructed: Ht = 55.64 (1 – e – 0.26 (t-to)) and Ht = 53.53 (1 – e – 0.22 (t-to)). The estimated asymptotic shell lengths were 74.70 and 70.81 mm, respectively. Condition index showed seasonal oscillation with several small peaks.
Izvorni jezik
Engleski
Znanstvena područja
Biologija, Biotehnologija
POVEZANOST RADA
Projekti:
001-0013077-0532 - Bioraznolikost i održivo gospodarenje pelagičkim i demerzalnim resursima Jadrana (Vrgoč, Nedo, MZOS ) ( CroRIS)
Ustanove:
Institut za oceanografiju i ribarstvo, Split
