Browsing WorldFish Community by Title
Now showing items 1378-1397 of 5196
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Effect of transportation stress on hepatic glycogen of Oreochromis niloticus (L.)
(1998)Type: Journal ArticleOreochromis niloticus was subjected to transportation stress to investigate hepatic glycogen levels and mortality as indices of stress. Mortalities lasted up to three days after transportation, except in highly aerated ... -
Effect of using periphyton substrate (Bamboo stems) on water quality, phytoplankton, zooplankton, periphyton and growth performance for tilapia, mullet and catfish in earthen ponds
(2012)Type: Journal ArticleThis experiment shows that the bamboo substrate improved water quality, survival rate and total production of fish. -
Effect of varying density and water level on the spawning response of African catfish Clarias gariepinus: Implications for seed production
(2006)Type: Journal ArticleThe development of a reliable methodology for spawning of African catfish, Clarias gariepinus without the use of hormone injections would greatly improve the prospects of aquaculture in Africa. Earlier work has shown that ... -
Effect of water hyacinth and chlorella on water polluted by heavy metals and the biochemical and pathophysiological response of exposed fish
(2008)Type: Conference PaperThis study aimed to investigate the capacity of selected aquatic plant (water hyacinth and Chlorella) to remove some metal pollution from the water and the effect of such reaction on the serum bichemistry and histopathology ... -
Effective fluorochrome marking of juvenile sea cucumbers for sea ranching and restocking
(2009)Type: Journal ArticleMarking of skeletal body parts of marine animals with fluorochromes, such as tetracycline and calcein, can provide a valuable tool for mark-recapture studies. In recent decades, both fluorochromes have been used extensively ... -
Effective supervision of inland capture fisheries of Bangladesh and its hurdles in managing the resources
(2016)Type: Journal ArticleCommunity-based approaches have gained significant attention in inland open water fisheries management in Bangladesh. This article focuses on the challenges and opportunities of the inland open water fishery resources under ... -
Effects of aflatoxin B1 on reproductive performance of farmed Nile tilapia
(2019)Type: Journal ArticleThis study evaluated the effect of dietary aflatoxin B1 (AFB1) on growth, milt and egg quality in matured Nile tilapia (Oreochromis niloticus). Triplicate groups of Nile tilapia (initial body weight 24.1 ± 2.6 g) were fed ... -
Effects of C/N ratio and periphyton substrates on pond ecology and production performance in giant freshwater prawn Macrobrachium rosenbergii (De Man, 1879) and tilapia Oreochromis niloticus (Linnaeus, 1758) polyculture system
(2015)Type: Journal ArticleThe production performances of giant freshwater prawn Macrobrachium rosenbergii and Nile tilapia Oreochromis niloticus in C/N-controlled periphyton-based polyculture systems were evaluated in triplicate. The result of this ... -
Effects of carbohydrate addition frequencies on biofloc culture of Pacific white shrimp (Litopenaeus vannamei)
(2021)Type: Journal ArticleIn Pacific white shrimp culture, adding organic carbohydrate to the pond besides feed improves water quality and shrimp performance. While the feeding frequency has significant effects on shrimp production, how often ... -
Effects of carbohydrate sources on a biofloc nursery system for whiteleg shrimp (Litopenaeus vannamei)
(2021)Type: Journal ArticleIn biofloc technology carbohydrate is added to stimulate the biofloc growth, the latter helps to improve water quality, reduce the need for water exchange and may serve as natural shrimp feed. The large diversity among ... -
Effects of COVID-19 on fish value chains: Descriptive Evidence from India
Type: Internal ReportThe COVID-19 pandemic which started at the beginning of 2020 has affected economies of many countries, including India where the government implemented containments measures such as lockdown regulations and curfews to curb ... -
Effects of elevated CO2 and nutrients on the community metabolism of a Cymodocea nodosa bed
(2016)Type: Journal ArticleThe authors assessed the combined effects of elevated CO2 and nutrients on the metabolism of a benthic community dominated by the seagrass Cymodocea nodosa (Ucria) Ascherson in a mesocosm experiment This study is one of ... -
The Effects of feed restriction and isolated or group rearing on the measurement of individual feed intake and estimation of feed conversion ratio in juvenile Nile Tilapia (Oreochromis niloticus) for selective breeding purposes
(2021)Type: Journal ArticleAccurately measuring the phenotype at the individual level is critical to the success of selective breeding programs. Feed efficiency is a key sustainability trait and is typically approached through feed conversion ratio ... -
Effects of marine protected areas on local fisheries: evidence from empirical studies
(2011)Type: Book ChapterThis chapter reviews and assesses current empirical evidence of marine protected area (MPA) effects on fisheries. First, we briefly describe the mechanisms by which MPAs may affect fisheries. Second, we synthesize empirical ... -
Effects of photoperiod on growth of larvae and juveniles of the anemonefish Amphiprion melanopus
(2000)Type: Journal ArticleRearing of anemonefishes is now relatively routine compared to the culture of cardinalfishes (Apogonidae) or angelfishes (Pomacanthidae). However, it is still a labor intensive, time intensive and expensive procedure. To ... -
Effects of protective management on coral reef fishes in the Philippines
(1984)Type: Journal ArticleThe findings are presented of a study concerning the species composition and abundance of coral reef fish in the Philippines and their protection. -
Effects of protective management on coral reefs in the Philippines
(1984)Type: Journal ArticleDetails are given of a project undertaken in the central Philippines concerning various factors affecting coral reefsand the protective management of the coral reefs. -
Effects of rearing conditions on low temperature tolerance of Nile tilapia, Oreochromis niloticus, juveniles
(2004)Type: Conference ProceedingsThis paper summarizes the results of two experiments in which the effects of genotype, age, size, condition factor and diet (natural phytoplankton versus formulated protein pellets) on low-temperature tolerance of juvenile ... -
Effects of relatedness and inbreeding on reproductive success of Nile tilapia (Oreochromis niloticus)
(2009)Type: Journal ArticleIt is well established that progeny of inbred matings are less fit than those of outbred matings, and that inbred individuals suffer from reduced viability and fertility. Inbreeding can be avoided by dispersal of progeny ... -
Effects of reservoirs on River Nile fisheries
(1981)Type: Journal ArticleThe catch-effort relationship of the River Nile is Complicated by such factors as changes in water level and hydrology as well as spawning movements of the fish, which result in uneven distribution of the fish and fishing. ...
