The study identified the origin, habitat and ecological classification of 78 bony fish species belonging to 30 families available in Khulna division. Of total species, 9 were found exotic. Among collected a 69 inhabitants freshwaters while 4 both fresh brackish waters rest 5 marine waters. fishes belonged eight trophic guilds; carnivore (43) was dominant group followed by omnivore (16), insecti...

Currently, only two species are known in the sabellid genus Aracia: A. riwo (Rouse, 1996) and A. heterobranchiata (Nogueira, López & Rossi, 2004). The first was described from the surface of a Teredo-riddled log lying in 1 m of water among mangrove roots, in Papua (New Guinea), whilst the second was found on an organically enriched beach at São Sebastião (Brazil). In this contribution, a third ...

The supralittoral zones of sandy beaches are particularly vulnerable to coastal development and other activities that cause localised habitat destruction. Supratidal species, such as peracarid crustaceans, which lack a pelagic larval phase tend avoid direct contact with the swash, therefore expected be distributed isolated populations, implications for their long-term survival. Genetic populati...

The fish family Cichlidae has a large diversity and dominates African freshwater bodies, with over 200 species reported in inland waters. Sampling for the fish Oreochromis niloticus (Linnaeus) in Opa reservoir, Nigeria, started in October 1997 and extended until February 2000. The fishing methods employed for collecting the 1 430 specimens were cast netting and gillnetting. Egg diameter varied ...

The coral genus Pocillopora is one of the few to include some species that broadcast spawn gametes and some species that brood larvae, although reports of reproductive mode and timing vary within and among species across their range. Notably, the ubiquitous Pocillopora damicornis has been described as both a brooder and spawner, although evidence of broadcast spawning is rare. Here, we report o...

Differences in selective pressures and the energetic cost of gametes gonochoristic corals should vary with sex colony, which may lead to sexual dimorphism. Coral colonies are composed subunits (corallites) that create a complex morphological architecture. If corallite features distinct between sexes, then degree coordinated change among these also (phenotypic modularity). This study tested for ...