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... Experiments were conducted on Guinean Fingerfish Monodactylus sebae to evaluate egg and larval stocking densities, stocking methods, water quality effects on egg hatching success, and the effects of different live food organisms on larval growth and survival. Egg hatching percentage was determined for four egg stocking densities (10, 20, 30, and 40 eggs/L). The lowest stocking density, 10 eggs/L, ...
Cymothoidae; Monodactylus; fish; new species; parasitology; Nigeria
Abstract:
... The branchial attaching, fish parasitic genus Mothocya Costa, in Hope, 1851 is recorded for the first time from Nigerian brackish waters on Monodactylus sebae (Perciformes: Monodactylidae). Mothocya andonin. sp. is characterised by a trapezoid-shaped cephalon with a subtruncate rostrum; pereonite 1 anterolateral angles only reaching to the posterior margin of the eyes; particularly large and wide ...
... As the popularity of marine aquaria grows, the potential exists for increased harvest of marine ornamental fishes and invertebrates from the oceans around the world. Aquaculture may be an alternative source to wild capture fisheries if commercial production protocols can be developed for species of interest, however numerous impediments must be overcome. Experiments were conducted on the reef butt ...
... Anthropogenic intervention along with natural variability can both influence and compromise continued ecosystem functioning. Ecological network analysis (ENA) was used to explore ecosystem functioning following disturbances to food web networks of a South African estuary, Mdloti, under different seasons. Keystone species, in particular, play an important structural role in spite of having low leve ...
... Gracilaria dura is an important red alga having the potential for commercial farming. To cultivate this alga, the floating bamboo raft method was employed. The study was carried out during October 2010 to September 2012 at the southeastern coast of India. The impacts of seasonal variation, initial seed density, harvest period, depth, and epiphyte and epifauna attachment on the raft were analyzed. ...
... The macropyline oribatid mites collected from Guilan Province in Northern Iran were investigated. The Austrophthiracarus heterotrichus (Mahunka 1979) and Steganacarus (Steganacarus) magnus anomalus (Berlese 1883) are new records for Iran mite fauna, also one genus and six species are reported as new records for Guilan Province mite fauna. A checklist and an identification key to the 29 ptyctimous ...
... Although predation has been identified as an important community driver, the role of predator diversity in structuring estuarine zooplankton has not been assessed. As such, we investigated the effects of two different zooplanktivorous fish species on the estuarine zooplankton community during a 12-day mesocosm study. Three experimental treatments were established, whereby natural zooplankton commu ...
... The seaweeds Dictyota dichotoma and Chaetomorpha linoides from the southeast coast of India were screened for anti-microfouling activity against biofilm bacteria, anti-macrofouling activity against brown mussels and feeding deterrence activity against the sea angel Monodactylus kottelati. The surface associated epiphytic bacteria were also isolated from seaweeds and screened for activity against b ...
Monodactylus; Rhabdosargus; estuaries; fish; frequency distribution; juveniles; larvae; mouth; species richness; summer; winter; South Africa
Abstract:
... The effects of timing, frequency and duration of mouth opening and marine overwash events on fish assemblages in two, adjacent temporarily open/closed estuaries were investigated. Sampling was conducted biannually over two years during summer and winter, using selective sampling gear to target estuarine-associated marine species. During this period the East Kleinemonde Estuary opened more frequent ...
Micropterus salmoides; Monodactylus; Mugil cephalus; Potamonautes; bass; estuaries; estuarine fish; fish ladders; freshwater; freshwater fish; insects; introduced species; invasive species; predation; rivers; stomach; South Africa
Abstract:
... This study presents results from stomach content analysis of 123 largemouth bass, Micropterus salmoides, sampled at the mouth of the fishway leading into a 3 m high weir at the tidal limit of the Kowie River, Eastern Cape Province (33°32‘39“S, 26°46‘ 52.3“E). Stomach contents from small (120–240 mm fork length, FL) and large (250–440mm FL) fish were analysed separately. Fish were the dominant prey ...
... The chemical basis of host selection in stenophagous insects, Oidaematophorus monodactylus, Metriona bicolor, Deloyala guttata and Chelymorpha cassidea was studied. A compound with the molecular formula C₅H₃NO₄, isolated from a water extract of Calystegia sepium, acted as a recognition factor for O. monodactylus and D. guttata but not for M. bicolor and C. cassidea, indicating that insects feeding ...