The Asian seabass Lates calcarifer mostly familiar as barramundi or seabass is a commercially important species. Asian seabass is naturally distributed in the Indo-west Pacific region and cultured from the Persian Gulf, Arabian Gulf, south-east Asia and Australia (FAO, 2020). Asian seabass is extremely carnivorous and can tolerate high salinity variations (Rimmer and Russell, 1998). High fecundity, captive breeding and rapid growth rate make this species a suitable candidate for aquaculture (de Venkatachalam et al., 2018). The ability to tolerate crowding, high turbidity, varying salinities and temperature makes it a relatively hardy species (Boonyaratpalin, 1997;Yue

Abstract:The culture of a red seaweed Hypnea sp. in three locations of Cox's Bazar coast, Saint Martin Island, Inani and Bakkhali with net method of 4 × 4 m coir rope net was evaluated. Seaweed was partially harvested at 15 days interval during December 2015 to January 2016. Daily growth rate of cultured Hypnea sp. was significantly higher (3.21 ± 0.01% day -1 ) in Saint Martin while Inani had the lowest (0.41 ± 0.06% day -1 ). Biomass yield of Hypnea sp. (3.81 ± 0.04 kg fresh wt.m −2 ) gained highest in Saint Martin than in Bakkhali (3.34 ± 0.10) and Inani (2.70 ± 0.02). Growth rate of seaweeds had a significant correlation with NO3-N (p < 0.05) but not with PO4-P. Culture of seaweed along those sites added a new dimension of prospect and possibility of seaweed mariculture in Bangladesh coast.

2016): Size frequency and length-weight relationships of three semi-tropical cephalopods, Indian squid Photololigo duvaucelii, needle cuttlefish Sepia aculeata, and spineless cuttlefish Sepiella inermis from the coastal waters of Bangladesh, Bay of Bengal, Zoology and Ecology, ABSTRACT Size frequency and length-weight relationships (LWRs) for three cephalopods, Indian squid Photololigo duvaucelii, needle cuttlefish Sepia aculeata, and spineless cuttlefish Sepiella inermis were studied. Specimens were caught from the coastal waters of Bangladesh (Moheshkhali Channel and Sonadia Island) using both trawl and marine set bag nets. The maximum dorsal mantle length for the Indian squid, needle cuttlefish, and spineless cuttlefish was recorded to be 228, 135, and 82 mm, respectively. The estimated growth coefficient b was 1.377 for Indian squid, 2.504 for needle cuttlefish, and 1.979 for spineless cuttlefish. The growth coefficient for these three species indicated hypoallometric growth from this region. No information has been published regarding size frequency and LWRs for these three cephalopods from the coastal waters of Bangladesh. The results of this study will be useful for the management and conservation of squid fisheries from the Bay of Bengal.

Relationship between length and weight was described for two gobioid fishes, red eel goby Odontamblyopus rubicundus and Ianceolate goby Pseudapocryptes elongatus, from the Bakkhali River estuary, Cox's Bazar, Bangladesh. The estimated growth coefficient (b) was 2.734 for O. rubicundus and 2.660 for P. elongatus, which indicated hypoallometric or negative allometric growth (b < 3) for both species. The mean values of the relative condition factor (K n ) for O. rubicundus and P. elongatus were 0.992 ± 0.055 and 1.039 ± 0.127, respectively. No information regarding length-weight relationship in O. rubicundus from the Bakkhali River estuary, Bay of Bengal, had earlier been reported, and no such information is documented in FishBase.Išnagrinėtas Bakkhali upės žiotyse Cox's Bazar, Bangladeše, gyvenančių dviejų grundalų rūšių (Odontamblyopus rubicundus ir Pseudapocryptes elongatus) ilgio ir svorio santykis. O. rubicundus (b = 2,734) ir P. elongatus (b = 2,660) augimo koeficientas parodė abiejų rūšių hipoalometrinį arba neigiamą alometrinį augimą (b < 3). Nustatytos abiejų žuvų rūšių santykinės būklės koeficientas buvo O. rubicundus K n = 0,992 ± 0,055, P. elongatus K n = 1,039 ± 0,127. Duomenų bazėje FishBase informacijos apie Bakkhali upės žiotyse gyvenančio O. rubicundus ilgio ir svorio santykį nėra.