The Paradise threadfin, Polynemus paradiseus is a marine fresh and brackish water fish species of the family Perciformes. This fish is found in Bangladesh, India, Malaysia, Myanmar, Thailand, Pakistan and Cambodia. Only a few studies on P. paradiesus including biology, ecology and dynamics have been conducted. This study focus on the on the Length Frequency Distribution (LFD), length-weight relationships (LWR) and Length Length Relationships (LLRs) of P. paradiseus from the coastal Tetulia River, southern Bangladesh.
Freshwater use for food production is projected to increase substantially in the coming decades with population growth, changing demographics, and shifting diets. Ensuring joint food-water security has prompted efforts to quantify freshwater use for different food products and production methods. However, few analyses quantify freshwater use for seafood production, and those that do use inconsistent water accounting. This inhibits water use comparisons among seafood products or between seafood and agricultural/livestock products.
Phenotypic and genetic parameters were estimated for three body traits (harvest weight, carapace length and standard length) and for adult male morphotypes of the giant freshwater prawn Macrobrachium rosenbergii in a fully pedigreed synthetic population in India. The data set included 9,173 progeny produced over four generations from 162 sires and 234 dams. Variance components and genetic parameters were estimated fitting an animal model using the residual maximum-likelihood methodology.
This chapter analyses the contribution of the Lake Chilwa Basin Climate Change Adaptation Programme (LCBCCAP) in providing alternative livelihoods to people in the basin and most importantly how these activities improved resilience to climatic shocks such as the 2012 lake recession.
One of the defining characteristics of inland fisheries is that they are closely impacted by other essential human activities that rely on the same fresh or brackish water ecosystems, such as hydroelectricity generation and irrigated agriculture. Starting with the premise that an understanding of fisheries' interactions with these external sectors is in itself critical for achieving sustainability of the fisheries, this paper explores the topic of intersectoral governance and outlines an approach to analyzing the intricate and often challenging sector relationships.
This paper describes the efforts to establish a network of community-conserved areas in the municipality of San Mariano on Luzon, with the dual aim to protect the Philippine crocodile and to improve inland fisheries. The necessary steps to establish a community-conserved area are summarized, and their sustainability assessed.
Dams and the reservoirs they create are increasingly ubiquitous in landscapes throughout the world. They have a major impact on fisheries, presenting both opportunities and constraints.
Freshwater fishery resources are declining in Bangladesh due to over exploitation, anthropogenic causes and inadequate management. To improve sustainability of these resources, a community-based resource management initiative was implemented by Bangladesh's Local Government and Engineering Department. Working in partnership with community-based resource management the communities implemented a variety of management interventions. The purpose of this study is to assess the impact of community-based management on fisheries production and biodiversity.
Although a stenohaline freshwater fish, the stinging catfish Heteropneustes fossilis, is also available in the freshwater fringes of the coastal areas of Bangladesh, the tolerance of this species to variable environmental salinity has not been thoroughly investigated. This study aims to understand salinity tolerance level by monitoring the growth, survival and biochemical parameters of H. fossilis under different salinity exposure for a period of 90 days.
This document provides a description of the general freshwater habitats found throughout the Ayeyarwady Basin. With a wide range of riverine and wetland habitats and high levels of species biodiversity, the Ayeyarwady River remains an ecologically important area and one of the world’s biodiversity hotspots. However, the habitats of the Ayeyarwady River, from the mountain’s rivers in the Eastern Himalayas to the Outer Delta Islands, are increasingly being subjected to intense and growing pressure from habitat loss, degradation and fragmentation, and over-exploitation of natural resources.