Conservation and management of Lake Manapao (Philippines), a ‘Sinarapan’ (<i>Mistichthys luzonensis</i>) sanctuary: Status, problems and solutions

Soliman, Victor S.

doi:10.1080/05384680.1994.11904049

Cited by 5 publications

(5 citation statements)

References 3 publications

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“…Of these the most cited detrimental effects because of tilapias in the region have been alleged in the case of the near extinction of the small endemic goby (sinarapan), Mistichthys luzonensis (Smith), in Lake Buhi, in the Philippines (Baluyut 1983; Soliman 1994). However, a critical examination of the available evidence suggests that the decline of sinarapan was probably a result of a number of factors, the least influential of these being the presence of the exotic cichlid (De Silva et al 2004).…”

Section: Problems Associated With Cultured Alien Finfish In Asiamentioning

confidence: 99%

An evaluation of the role and impacts of alien finfish in Asian inland aquaculture

et al. 2006

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Asia dominates global aquaculture production accounting for over 80% of the total and the mainstay in Asian aquaculture is ¢n¢sh. Over the years, Asia has experienced a number of inter-continental and intra-continental transfers/introductions/translocation of ¢n¢sh species, between nations and watersheds, beyond their natural range of distribution, primarily for aquaculture development. In this article all such species are referred to as alien species. An attempt is made to evaluate the importance of the production of alien species in selected Asian nations, using statistics of the Food and Agriculture Organization. Also, negative e¡ects, if any, based on literature surveys, of alien species in relation to displacement of indigenous species, and on biodiversity and/or genetic diversity together with associated pathogen transfers are evaluated. The major alien species, based on their signi¢cance to Asian inland aquaculture considered, are the tilapias, cat¢sh, Chinese and Indian major carps and common carp. It is estimated that currently alien species account for nearly 12% of the cultured ¢n¢sh production (2.6 million tonnes) in Asia, valued at US$ 2.59 billion, and the contribution exceeds 40% when Asian countries excluding China are taken into consideration. Inland ¢n¢sh aquaculture in some Asian nations, such as Indonesia and the Philippines, is predominated by alien species, and in some others, e.g. Bangladesh and India, the contribution from alien species has been increasing steadily. It is suggested that overall alien ¢n¢sh species have done little ecological harm to native £ora and fauna. However, in the wake of increasing anthropogenic development taking place in watersheds the resulting environments are often made unconducive to indigenous species but not to some alien species, thereby potentially and indirectly making the latter invasive.

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Section: Problems Associated With Cultured Alien Finfish In Asiamentioning

confidence: 99%

An evaluation of the role and impacts of alien finfish in Asian inland aquaculture

et al. 2006

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“…The IUCN Red List includes 27 fish species from the lakes of this island alone out of a total of 29 for Indonesia as a whole. Dramatic declines in the abundance of Sinarapan (Mistichtys luzonensis: Gobiidae) from Lake Manapao (a mountain lake designated as a sanctuary for this Philippines endemic in 1982) have been attributed to the combined effects of exotic predators and drainage basin degradation (Soliman 1994). Surprisingly, this tiny (Ͻ2-cm-long) goby was once the basis of an important fishery, and is probably the world's smallest commercial fish.…”

Section: Vignette 6: Exotic Species In Asian Lakesmentioning

confidence: 96%

Conservation of freshwater biodiversity in Oriental Asia: constraints, conflicts, and challenges to science and sustainability

Dudgeon

2000

Limnology

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Freshwater ecosystems in Asia are under grave threat. Large and growing human populations and the rapid pace of development have led to the degradation of natural environments throughout the region. Conservation of freshwater biodiversity faces particular challenges because of a lack of public awareness of its magnitude and importance. Even taxa with high public-relations value, such as fishes, are rather poorly known, and the variety of other animals associated with lakes and riverine wetlands, including charismatic and endangered megafauna, seems to have escaped wide attention. The rate and extent of environmental change in Asia are having impacts on the aquatic biota that may be greater than anywhere else on the planet. Particular threats include water pollution, from point and nonpoint sources, which is almost ubiquitous; overharvest of fishes, turtles, and crocodilians; flow regulation and impoundment of rivers; as well as drainage basin degradation and climate change. Many lakes have been so modified by human activities that they function as enormous fishponds, and the introduction of exotic species (especially, but not only, fishes) or the translocation of native taxa has contributed to the extinction of endemic species in isolated drainage basins. The prognosis is grim, and we can anticipate a loss in biodiversity and homogenization of the regional biota. Reversal of these trends will require a change in focus by limnologists and waterresource managers, and the urgent adoption of a conservation agenda for freshwater science in Asia.

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“…Cependant, l'étude de l'impact sur les espèces autochtones des multiples introductions des diverses espèces de tilapias en Asie a donné lieu à diverses controverses. En particulier, le plus cité des effets défavorables causés par les tilapias en Asie est celui de la quasi-disparition d'un petit gobiidé endémique, Mistichthys luzonensis (Smith) du lac Buhi aux Philippines (Soliman, 1994). Une meilleure gestion des pêches dans ce lac, entreprise récemment, a permis à cette espèce d'initier un retour à la place qu'elle occupait (De Silva et al, 2004 (Kamonrat, 1996).…”

Section: Impacts D'ordre é Cologiqueunclassified

Introductions et transferts d'espèces de poissons d'eau douce

Lazard¹,

Lévêque²

2009

Agriculture

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Conservation and management of Lake Manapao (Philippines), a ‘Sinarapan’ (Mistichthys luzonensis) sanctuary: Status, problems and solutions

Cited by 5 publications

References 3 publications

An evaluation of the role and impacts of alien finfish in Asian inland aquaculture

An evaluation of the role and impacts of alien finfish in Asian inland aquaculture

Conservation of freshwater biodiversity in Oriental Asia: constraints, conflicts, and challenges to science and sustainability

Introductions et transferts d'espèces de poissons d'eau douce

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