Browsing WorldFish Community by Title
Now showing items 1338-1357 of 5196
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Ecosystem function and biodiversity on coral reefs
(1994)Type: Journal ArticleThe article highlights a workshop held in Key West, Florida in November 1993 attended by a group of 35 international scientists where topics of ecosystem function and biodiversity on coral reefs were discussed. -
Ecosystem maturity: towards quantification
(1995)Type: Journal ArticleAn attempt is made to rank 41 steady-state models of aquatic ecosystems on the basis of their maturity. Maturity is quantified using several of Odum's attributes of ecosystem maturity. It is shown that it is possible to ... -
Ecosystem-based fisheries management in small-scale tropical marine fisheries: emerging models of governance arrangements in the Philippines
(2010)Type: Journal ArticleThere has been a gradual evolution in fisheries management over the past decades from a focus on sustainability of a single species or stock and resources to a focus on marine ecosystems. Among the issues to be addressed ... -
Ecosystem-based management objectives for the North Sea: riding the forage fish rollercoaster
(2013)Type: Journal ArticleThe North Sea provides a useful model for considering forage fish (FF) within ecosystem-based management as it has a complex assemblage of FF species. This paper is designed to encourage further debate and dialogue between ... -
Ecoviability for ecosystem-based fisheries management
(2017)Type: Journal ArticleReconciling food security, economic development and biodiversity conservation is a key challenge, especially in the face of the demographic transition characterizing many countries in the world. Fisheries and marine ... -
Edible seaweeds: an important source of food and income to indigenous Fijians
(1993)Type: Journal ArticleThe increasing harvest of 7 edible seaweeds in Fiji and their importance to the economy of indigenous Fijians are discussed. Traditional methods in the collection, preparation and consumption of seaweeds by the Fijians are ... -
Effect of broodstock density on Oreochromis shiranus fry production in hapas
(1993)Type: Journal ArticleOreochromis shiranus broodstock were stocked in 3 x 3 x 1 hapas for 413 days in Malawi at 1.7, 1.0, and 0.7/m super(2) (sex ratio was 1 male:2 females). First sampling was done 14 days after stocking and every 21 days ... -
Effect of dietary carbohydrate to lipid ratio on performance of Nile tilapia and enhancement of natural food in pond aquaculture
(2020)Type: Journal ArticleThis study tested the effect of two diets differing in carbohydrate to lipid (CHO:LIP) ratio (4.7 vs. 19.5 g/g) on the contribution of natural food and the total fish production in tilapia ponds. Eight ponds, each divided ... -
Effect of dietary probiotic Biogen supplementation as a growth promoter on growth performance and feed utilization of Nile tilapia Oreochromis niloticus (L.)
(2006)Type: Journal ArticleProbiotic microbial feed supplements are gaining wide acceptance in livestock production, and may be applicable to aquaculture production systems. The present study was conducted to examine probiotic treatment in the ... -
Effect of dietary protein and feeding time on growth performance and feed utilization of post larval freshwater prawn Macrobrachium rosenbergii (de Man 1879)
(2008)Type: Journal ArticleA growth trial was conducted to investigate the effect of different dietary protein and feeding times on growth performance and feed utilization of freshwater prawn Macrobrachium rosenbergii Post-Larvae (PL). The experiment ... -
Effect of dietary protein level on fish growth, economic and ecological performance of three types of feed for Nile tilapia (Oreochromis Niloticus)
(2020)Type: Internal ReportWith a growing world population, food production needs to increase as well. Part of the human diet is fish, and with world fisheries declining, the aquaculture industry is increasing. Nile tilapia is a major aquaculture ... -
Effect of dietary protein to energy ratio on performance of nile tilapia and food web enhancement in semi-intensive pond aquaculture
(2018)Type: Journal ArticleWhen fish have only access to formulated feed, the optimal dietary protein to energy ratio (P:E) for tilapia ranges between 18 and 23 g.MJ<sup>-1</sup>. In pond culture, where natural foods complement administrated feed, ... -
Effect of dietary protein to energy ratio, stocking density and feeding level on performance of Nile tilapia in pond aquaculture
Type: Journal ArticleThere is growing interest to understand the dietary P:E requirements for the supplemental feed used in tilapia pond culture where natural food contributes to production. In an on-farm trial, we tested the effect of lowering ... -
Effect of dietary supplementation of inulin and vitamin C on the growth, hematology, innate immunity, and resistance of Nile tilapia (Oreochromis niloticus)
(2010)Type: Journal ArticleThe aim of the current study was to evaluate the in vivo potential effect of inulin (5 g kg-1) and Ascorbic acid (500 mg kg-1) on improving the performance as well as the immunity of Nile tilapia (Oreochromis niloticus). ... -
Effect Of Different Prepared Antigens Of Pseudomonas fluorescens On Specific And Non-Specific Immune Response Of Nile tilapia (Oreochromis niloticus)
(2013)Type: Journal ArticleThe current work aimed to study four different prepared Ps. fluorescensantigens (formalin killed bacterin, extracellular product (ECP) suspension, sonicated cells (SC) suspension and mixture of ECP and SC suspension) to ... -
Effect of different salinity levels on the fertilization and hatching of Heterobranchus bidorsalis
(1997)Type: Journal ArticleThe success of induced spawning for the production of fish seed depends on many factors which affect hatchery conditions. This paper discusses the results of an investigation on the effects of six different levels of ... -
Effect of Echinacea on body gain, survival and some hematological and immunological parameters of Oreochrmis niloticus and their response to challenge infection
(2007)Type: Journal ArticleSix hundred and forty O. niloticus were equally distributed in 16 hapas (each of 1.5 m3) to be used for 4 treatments in 4 replicates. Fish of groups 1-3 were fed on basal diet mixed with Echnicacea (0.25 ppt) for 1 st, 2 ... -
Effect of eco-physiological factors on biometric traits of green mussel Perna viridis cultured in the south-east coast of the Bay of Bengal, Bangladesh
(2021)Type: Journal ArticleInformation on allometry, condition indices (CIs), and biometric traits (BTs) of marine bivalves are necessary for determining the growth pattern and the size at which harvest can be intensified to maximize production in ... -
Effect of female weight on reproductive performance of nile tilapia (Oreochromis niloticus)
(2014)Type: Conference PaperThe present study aimed to investigate the effect of broodstock size on the reproductive performance of Nile tilapia and to see whether this identifies possible broodstock management strategies that may be adopted by ... -
Effect of fishpond input on pond mud nutrient levels in integrated crop-fish culture resource recycling
(1998)Type: ReportThe success of aquaculture among small holder farmers in Malawi, depends on the use of the available on-farm resources. Commercial fish feeds are currently not available. Fish ponds open possibility for recycling of waste ...
