Use of indigenous fishes to control schistosome snail vectors in Malaŵi, Africa

Biotas are constantly being reshaped by invasions. Introduction is now an added route to invaders. Impacts must be viewed against the background of massive changes in type, extent and quality of freshwater habits globally and in that freshwater fishes are almost living fossils. Also, old lakes and lacustrine fishes are highly restricted geographically. Lakes are young while rivers are old. Riverine, marsh and pond fishes are not well adapted to lacustrine conditions now widespread due to reservoir construction. Some Clupeidae and Cichlidae are lacustrine-adapted and highly productive. They have therefore made major impacts on fish yields in lakes and reservoirs. In tropical Asia and America, there have been a series of overlapping waves offish introductions during the past 150 years, culminating tin the tilapias from Africa. These fishes now dominate capture and culture fisheries in many countries. Fish introductions are a fait accompli and will continue. They must be realistically assessed and carefully monitored. Contrary to some predictions, introductions have not caused severe damage to indigenous species except when piscivores were used. Yields of indigenous fishes have apparently been enhanced in some instances. Parasites pose a serious threat and only an effective quarantine will ensure their exclusion.

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A Review on Embryonic Development of Inland Fishes of Bangladesh

Agricultural Science ◽

10.30560/as.v2n1p1 ◽

2020 ◽

Vol 2 (1) ◽

pp. p1

Author(s):

Md. Borhan Uddin Ahmed ◽

Jobayda Sifat ◽

Md. Fazla Rabbi ◽

Md. Ashraful Islam ◽

H.M. Al Kabid Rafin ◽

...

Keyword(s):

Embryonic Development ◽

Early Development ◽

Fish Species ◽

Grey Literature ◽

Fertilization Rate ◽

Current Review ◽

Scientific Papers ◽

Early Developmental ◽

Indigenous Fishes ◽

Fertilized Egg

The early developmental pattern of inland fishes of Bangladesh are not well studied though it has a great importance in fisheries and aquaculture sector. The embryonic study provides interesting information on further growth and health of the fish and considered as an essential component for optimization of fish seed production by natural and induced breeding. Therefore, the current review work has been undertaken to provide a detail information on embryonic development of important inland fishes of Bangladesh. Information was collected from published scientific papers, un-published Masters and PhD dissertations from universities, popular articles and other published and grey literature. Diameters of unfertilized egg of the reviewed fish species were found to be 0.5 to 1.3 mm and fertilized egg were 0.49 to 1.6 mm. Shapes of the egg were also variable from species to species. There is little information available on egg activation and egg micropyle of fish species of Bangladesh. The fertilization rate of different fishes ranged from 40.1% to 93.9%. There are different stages of early development in different species and time needs to complete the stages also vary. The timing of post hatching development by metamorphosis was found to vary based on the fish species from several days to weeks. Different factors like temperature, photoperiod, DO, seasonality and presence of chemicals in water were found to affect the early development of fish. The review included eighteen inland fishes and unearthed useful insights of their embryonic development and influence of different factors. As we expect, the outcome of the study would provide a baseline and would be very useful in conducting further research on the embryology of indigenous fishes of Bangladesh.

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Correction to: Early detection monitoring for non-indigenous fishes; comparison of survey approaches during two species introductions in a Great Lakes port

Biological Invasions ◽

10.1007/s10530-021-02697-z ◽

2021 ◽

Author(s):

Greg S. Peterson ◽

Joel C. Hoffman ◽

Anett S. Trebitz ◽

Chelsea I. Hatzenbuhler ◽

Jared T. Myers ◽

...

Keyword(s):

Early Detection ◽

Great Lakes ◽

Species Introductions ◽

Indigenous Fishes

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The non-indigenous fishes in the fauna of Ukraine: a potentia ad actum

BioInvasions Records ◽

10.3391/bir.2017.6.3.13 ◽

2017 ◽

Vol 6 (3) ◽

pp. 269-279 ◽

Cited By ~ 3

Author(s):

Yuriy Kvach ◽

Yuliya Kutsokon

Keyword(s):

Indigenous Fishes

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A preliminary assessment of the impact of alien rainbow trout (Oncorhynchus mykiss) on indigenous fishes of the upper Berg River, Western Cape Province, South Africa

African Journal of Aquatic Science ◽

10.2989/16085910409503799 ◽

2004 ◽

Vol 29 (1) ◽

pp. 107-111 ◽

Cited By ~ 12

Author(s):

DJ Woodford ◽

ND Impson

Keyword(s):

South Africa ◽

Rainbow Trout ◽

Oncorhynchus Mykiss ◽

Western Cape ◽

Preliminary Assessment ◽

Western Cape Province ◽

Rainbow Trout Oncorhynchus Mykiss ◽

The Impact ◽

Indigenous Fishes

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EVALUATION OF NUTRIENT COMPOSITION AND MINERAL CONTENT OF TRADITIONALLY DRIED SMALL INDIGENOUS FISHES

FLORA AND FAUNA ◽

10.33451/florafauna.v23i2pp423-431 ◽

2017 ◽

Vol 23 (2) ◽

Author(s):

SHADAB MASUD ◽

CHANDANA HALDAR

Keyword(s):

Protein Content ◽

Human Population ◽

Mineral Content ◽

Animal Protein ◽

Nutritional Security ◽

Protein Requirements ◽

Tissue Healing ◽

P Content ◽

Indigenous Fishes ◽

Puntius Sophore

Small indigenous fish species (SIS) are rich in nutrients and can be ensure nutritional security even in their dried state. Four dried cyprinid food fishes viz. Salmophasia bacaila , Aspidoparia morar , Amblypharyngodon mola and Puntius sophore were studied. All the four species are rich in protein content so they are important source of animal protein. The results showed variation in moisture, protein, fat, ash, fiber and in mineral content. Moisture was estimated 5.69% ( P. sophore ) to 7.42% ( A. morar ). Protein content varied from 52.32% ( S . bacaila ) to 60.79% ( A. morar ). Fat, ash, fiber, Ca and P content varied from 15.56% to 29.76%, 11.52% to 17.96%, 0.09% to 0.35%, 3.17% to 5.87% and 1.54% to 3.06% respectively. Higher levels of protein in SIS make them an important dietary supplement to promote growth and tissue healing and can be able to reduce the animal protein requirements for increasing human population. The overall result reveals that the SIS of the region are highly nutritious.

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