we performed a plankton survey of blood cockle larvae, anadara spp., and histological observations of the gonads of adult blood cockle, anadara granosa , in the coastal waters off sungai buloh, peninsular malaysia from october 2010 to april 2011. the histological observations indicated the main spawning period in both sexes was from november to march. in addition, the occurrence of blood cockle...

the sexual maturation and spawning period of blood cockle in matang mangrove estuary was studied by naked eye and histological observations of the gonads from july 2010 to april 2011. the high spawning period was from november to february. however, at one station where bottom sediment exhibited a severe reduction in potential of −100 mv lower, immature individuals were common. these results sug...

Preliminary study on the growth development of blood cockle (Tegillarca granosa) by using different substrates in hatchery system

this study was carried out to clarify the feeding biology of the blood cockle ( anadara granosa ). we collected blood cockles from 8 stations in the matang mangrove estuary of malaysia in july and august 2010. the digestive tube contents of the specimens were stained with congo red and observed under a light microscope. the results showed blood cockles take in particles containing cellulose as ...

Growth, mortality, exploitation rate, and recruitment of Anadara granosa cockle in Rangsang Barat coastal waters were studied from July to October 2019. The objective this research was study growth. mortality. rate A cockle. Sampling done monthly at three main stations. collected plot 1 x m2 on quadrat transect. result showed that the asymptotic length (L∞) P. acutidens 30.45 mm. annual growth ...

The burrowing and movement ability of the New Zealand cockle Austrovenus stutchburyi is reduced when infected by echinostome trematodes. Previous experimental evidence from a single site suggests that this parasite-induced behavioural change of a key bivalve can affect the structure of the surrounding benthic community. By using multiple regression analyses on data collected from 17 intertidal ...

Abstract. Amalia R, Rejeki S, Widowati LL, Ariyati RW. 2021. The growth of tiger shrimp (Penaeus monodon) and its dynamics water quality in integrated culture. Biodiversitas 23: 593-600. Intensive culture with high density will have an impact on environmental problems. One them is the accumulation organic materials. Integrated Multi-trophic Aquaculture (IMTA) alternative effort to reduce aquacu...

Effort towards preserving natural coarse aggregate for future generation and reducing cockle shell waste originating from the fisheries industry has initiated studies on possibility of integrating this waste in concrete production. This paper presents the result on the workability and compressive strength of concrete containing various percentage of cockle shell content as partial coarse aggreg...