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Articles by C.C. Zaidi
Total Records ( 4 ) for C.C. Zaidi
  A.G. Mazlan , Y.S. Chung , C.C. Zaidi , A. Samat , A. Arshad , Y.G. Seah , Gazi Mahabubul Alam and K.D. Simon
  The present study describes the meristic, morphometric and Length Weight Relationship (LWR) of tropical silverside, Atherinomorus duodecimalis (Atheriniformes: Atherinidae) an important fishery in the Sea grass and mangrove habitat of Tinggi Island, Johor, Malaysia. A series of sampling survey was conducted in seagrass and mangrove habitats of Tinggi Island, using beach seine net. A total of 94 specimens (3.7-10.3 cm TL) used in this study. The results showed that meristic and morphometric features of the fish studied agreed well with a description of the holotype specimen MNHN A. 4382 and other silverside specimens. The only exception was observed in the upper jaw length and eye diameter as a percentage of head length. The allometric coefficient ‘b’ of the length weight relationship indicated negative allometric growth (b<3.0) in seagrass habitat and positive allometric growth (b>3.0) in mangrove habitat. To the best knowledge of the authors, this study presented the first reference on LWR for this species from Johor waters, Malaysia.
  I. Zamidi , A. Samat , C.C. Zaidi , A.G. Mazlan , Gazi Mahabubul Alam , Abul Quasem Al-Amin and K.D. Simon
  Several aspects of the reproductive biology of four finger threadfin, Eleutheronema tetradactylum collected from coastal waters of Sebatu, Malacca, Peninsular Malaysia between August 2009 and October 2010 were studied to describe the fecundity and temporal reproductive cycle. Temporal reproductive cycle was reviewed utilizing monthly changes in Gonadosomatic Index (GSI) and macroscopic observation of ovaries. Estimated fecundity of mature ovaries ranged from 341,358-1,114,757 eggs with a Total Length (TL) that range from 38.0-55.5 cm. The estimated average fecundity was 663,078±76,935. The relative fecundity ranged from 393-1202 eggs g-1 b.wt. with induced a 657±68 mean value. According to our findings; a linear correlation appeared between the estimated Fecundity (F), Ovary Weight (OW), Body Weight (BW) and Total Length (TL) show. Present results also indicate that four finger threadfin fish has a lengthy spawning season starting from March-September in Malacca coastal waters of Peninsular Malaysia.
  Y.G. Seah , A.G. Mazlan , S. Abdullah , C.C. Zaidi , G. Usup and C.A.R. Mohamed
  In this study, stomach content analyses were used to determine the feeding guild of dominant trawl species comprising leiognathids and priacanthids. Specimens were collected from the southeastern coastal waters of Peninsular Malaysia using commercial trawler. Five species of leiognathids and two species of priacanthids were caught throughout the study. The results showed that the mean value of trophic level for leiognathid species, Photopectoralis bindus was 3.22±0.49, Gazza minuta was 2.75±0.29, Secutor indicius was 2.87±0.30, Eubleekeria jonesi was 2.49±0.27, Equulites stercorarius was 2.63±0.30 and for priacanthid species, Priacanthus macracanthus was 3.51±0.47 and Priacanthus tayenus was 3.61±0.45. The results indicated that the feeding regime of P. bindus, G. minuta and S. indicius can be categorized as bentho-pelagic feeders that have forwardly or upwardly protractible mouth types and feed mainly on zooplankton and zoobenthos. E. stercorarius and E. jonesi with a downwardly protractible mouth type feed mainly on zoobenthos and can be classified as benthivorous. The results suggested that the forwardly or upwardly protractible mouth types leiognathids occupy a higher trophic level compared to the downwardly protractible mouth type leiognathids. Both priacanthids with upturned mouth type have similar diet composition consisting of crustaceans, polychaetes, ostracods, fish and cephalopods. They are thus mid-level carnivores since the species are able to consume organisms at trophic level 3.5. The results revealed that the value of trophic level for priacanthid species were higher than leiognathid species.
  C.C. Zaidi , L. Tukimat , A.M. Muzzneena and A.G. Mazlan
  This study has been conducted to investigate the effect of different egg culture densities during incubation on the development and viability of mussel larvae, Mytilus edulis L. The activated eggs were cultured in two different culture densities (less than 5000 eggs l‾1 and more than 15000 eggs l‾1) up to the development of the early shelled veliger or D-larvae stage (ca 72 h). It was found that the percentage yield, quality and viability of mussel larvae (prodissoconch I larvae) were significantly improved if lower culture densities were used (p<0.05). The low culture density environment also produced significantly lower percentage of abnormal larvae, particularly the incidence of abnormal shell development (p<0.05). This finding is of great importance for viable hatchery production of quality mussel spats. However, further experiments are greatly needed to ascertain the feasible incubation density and the optimal larval concentration especially during the early developmental stage of mussel larvae.
 
 
 
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