Seasonal and Interannual Variations in Biomass and Abundance of Megabenthos in Ise Bay, Central Japan

Spatial Variation in Physical and Chemical Parameters and Macro-Invertebrates in the Intertidal Regions of Calabar River, Nigeria

“…Variability in the occurrence and distribution of organisms in a habitat has also been linked with recruitment and reproduction pattern which vary among different organisms. This again, corroborates with the observation of Ombu (1987) and Narita et al, (2003) who worked on some macrofauna of the central Bonny Estuary, Nigeria and the seasonal and inter-annual variation in biomass and abundance of mega benthos in Ise Bay, central Japan.…”

“…Rose Bengal solution enhances the benthic organisms to be clearly seen even with the naked eyes (Narita et al, 2003;Hart, 1999). The respective macro-invertebrates species was sorted using identification guides of Olaniyan (1978); Edmunds (1978); Castro and Huber (2005).…”

“…In the laboratory, macro-invertebrates were stained with Rose Bengal solution following Narita et al, (2003). Rose Bengal solution enhances the benthic organisms to be clearly seen even with the naked eyes (Narita et al, 2003;Hart, 1999).…”

A review of kuruma prawn Penaeus japonicus stock enhancement in Japan

“…4), leading to poor recruitment and, ultimately, reduction in spawning biomass, are plausible hypotheses for the declines in catches of prawns and other benthic species. This is supported by reports that total biomass of megabenthos decreased dramatically when oxygen-poor water developed in Ise Bay, CP (Narita et al, 2003).…”

Population dynamics of portunid crab Charybdis bimaculata in Ise Bay, central Japan

“…It is important to know the population dynamics of this crab for successful use of fishery resources in order to clarify the megabenthos community structure in Ise Bay, central Japan. Based on short‐term observations, seasonal variations in the abundance and biomass, spawning season, sex ratio 2,11 and food habits of the crab 14 have been reported, whereas those based on long‐term observations have been reported only by Hossain 5 and Narita et al 6 . According to these studies, 5,6 the abundance and biomass of the crab decreased in summer when oxygen‐poor water developed in the central or inner parts of the bay, and then increased from autumn to the following spring when the oxygen‐poor water disappeared.…”