Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Key Words: biodiversity, invasive species, ecological niche, Cichlidae
In recent years, many
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
negative impact on the native ecosystems, representing
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
hotspot, harboring many types of organisms. Therefore, it is necessary to elucidat
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
Cichlidae:
urophthalmu
Figure 1. Oreochromis niloticus
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
: biodiversity, invasive species, ecological niche, Cichlidae
In recent years, many invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
negative impact on the native ecosystems, representing
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
hotspot, harboring many types of organisms. Therefore, it is necessary to elucidat
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
ichlidae: Oreochromis niloticus
mus used as aquarium fish (Fig. 1, 2, 3).
Oreochromis niloticus
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
: biodiversity, invasive species, ecological niche, Cichlidae
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
negative impact on the native ecosystems, representing
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
hotspot, harboring many types of organisms. Therefore, it is necessary to elucidat
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
Oreochromis niloticus and
used as aquarium fish (Fig. 1, 2, 3).
Oreochromis niloticus
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Bangkok, Thailand
: biodiversity, invasive species, ecological niche, Cichlidae
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
negative impact on the native ecosystems, representing
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
hotspot, harboring many types of organisms. Therefore, it is necessary to elucidat
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
and O. mossambicus
used as aquarium fish (Fig. 1, 2, 3).
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Bangkok, Thailand
: biodiversity, invasive species, ecological niche, Cichlidae
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
negative impact on the native ecosystems, representing one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
hotspot, harboring many types of organisms. Therefore, it is necessary to elucidat
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
O. mossambicus introduced as food resources and
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Bangkok, Thailand
: biodiversity, invasive species, ecological niche, Cichlidae
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
hotspot, harboring many types of organisms. Therefore, it is necessary to elucidat
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
introduced as food resources and
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Place of fieldwork: Thailand
Name: DAIKI TOMOJIRI
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
hotspot, harboring many types of organisms. Therefore, it is necessary to elucidate the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
introduced as food resources and
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Place of fieldwork: Thailand
Name: DAIKI TOMOJIRI
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
introduced as food resources and
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Year: 2014
Place of fieldwork: Thailand
Name: DAIKI TOMOJIRI
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
introduced as food resources and Cichlasoma
Year: 2014
Place of fieldwork: Thailand
Name: DAIKI TOMOJIRI
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
Cichlasoma Figure 2. Cichlasoma uropht
Figure 3. Oreochromis mossambicu
The purpose of this study is to assess the impact of the invasive Cichlidae species on the native ecosystem and
human activities related to food habits, aquaculture, etc. The biological part of the research studied the feeding
habits of Cichlidae
contents analysis and stable isotope analysis. The sociological research addresses the impact on human activities
by conducting surveys and interviews.
There was a si
introduced species are generally considered to have negative impact on the native ecosystems and therefore
should be eliminated. In Thailand, however most of the
value and, apart from few biologists, they are not aware of their impact on the ecosystem. Moreover, Thai people
usually release organisms, most of which are introduced species, for belief. There ar
different types of introduced species (Fig. 4). This finding was unexpected and entailed correct evaluation of
Cichlasoma uropht
Oreochromis mossambicu
The purpose of this study is to assess the impact of the invasive Cichlidae species on the native ecosystem and
human activities related to food habits, aquaculture, etc. The biological part of the research studied the feeding
habits of Cichlidae in order to elucidate the ecological niche they occupy by using two methods, the stomach
contents analysis and stable isotope analysis. The sociological research addresses the impact on human activities
by conducting surveys and
ผลกระทบต่อระบบนิเวศของสามปลาหมอสายพันธุ์รุกรานในแม่น้ำเจ้าพระยาด้านล่างคำสำคัญ: ความหลากหลายทางชีวภาพ พันธุ์รุกราน ระบบนิเวศ โพรง Cichlidaeในปีที่ผ่านมา มากสำหรับกีฬาตกปลา ปลาเหล่านี้มากมายแล้วได้ก่อตั้งขึ้นในสภาพแวดล้อมธรรมชาติ และส่วนใหญ่มีการผลกระทบเชิงลบในระบบนิเวศดั้งเดิม แทนการศึกษาน้อยมีเกี่ยวกับพันธุ์ปลารุกรานเอเชียตะวันออกเฉียงใต้ ภูมิภาคที่ถือว่าเป็นความหลากหลายทางชีวภาพจุด harboring หลายชนิดของสิ่งมีชีวิต ดังนั้น จำเป็นต้อง elucidatพันธุ์ที่ได้รับการแนะนำไปยังเอเชียตะวันออกเฉียงใต้ การศึกษานี้เน้นประเทศไทย และดำรงชีวิตในระบบนิเวศและผลกระทบต่อสังคมวิทยาพันธุ์รุกรานในระบบนิเวศของน้ำ ชนิดเป้าหมายสามรุกรานCichlidae:urophthalmuรูปที่ 1 ปลานิลผลกระทบต่อระบบนิเวศของสามปลาหมอสายพันธุ์รุกรานในแม่น้ำเจ้าพระยาด้านล่าง: ความหลากหลายทางชีวภาพ พันธุ์รุกราน ระบบนิเวศโพรง Cichlidaeในปีที่ผ่านมา ปลาหลายรุกรานได้ถูกแนะนำไปยังเอเชียตะวันออกเฉียงใต้เป็นทรัพยากรอาหาร ลูกบอล หรือสำหรับกีฬาตกปลา ปลาเหล่านี้มากมายแล้วได้ก่อตั้งขึ้นในสภาพแวดล้อมธรรมชาติ และส่วนใหญ่มีการผลกระทบเชิงลบในระบบนิเวศดั้งเดิม แทนการศึกษาน้อยมีเกี่ยวกับพันธุ์ปลารุกรานเอเชียตะวันออกเฉียงใต้ ภูมิภาคที่ถือว่าเป็นความหลากหลายทางชีวภาพจุด harboring หลายชนิดของสิ่งมีชีวิต ดังนั้น จำเป็นต้อง elucidatพันธุ์ที่ได้รับการแนะนำไปยังเอเชียตะวันออกเฉียงใต้ การศึกษานี้เน้นประเทศไทย และดำรงชีวิตในระบบนิเวศและผลกระทบต่อสังคมวิทยาพันธุ์รุกรานในระบบนิเวศของน้ำ ชนิดเป้าหมายสามรุกรานichlidae: ปลานิลบรรยากาศเป็นกันใช้เป็นพิพิธภัณฑ์สัตว์น้ำปลา (Fig. 1, 2, 3)ปลานิลผลกระทบต่อระบบนิเวศของสามปลาหมอสายพันธุ์รุกรานในแม่น้ำเจ้าพระยาด้านล่าง: ความหลากหลายทางชีวภาพ พันธุ์รุกราน ระบบนิเวศโพรง Cichlidaeปลารุกรานได้แนะนำไปยังเอเชียตะวันออกเฉียงใต้เป็นทรัพยากรอาหาร ลูกบอล หรือสำหรับกีฬาตกปลา ปลาเหล่านี้มากมายแล้วได้ก่อตั้งขึ้นในสภาพแวดล้อมธรรมชาติ และส่วนใหญ่มีการผลกระทบเชิงลบในระบบนิเวศดั้งเดิม แทนการศึกษาน้อยมีเกี่ยวกับพันธุ์ปลารุกรานเอเชียตะวันออกเฉียงใต้ ภูมิภาคที่ถือว่าเป็นความหลากหลายทางชีวภาพจุด harboring หลายชนิดของสิ่งมีชีวิต ดังนั้น จำเป็นต้อง elucidatพันธุ์ที่ได้รับการแนะนำไปยังเอเชียตะวันออกเฉียงใต้ การศึกษานี้เน้นประเทศไทย และดำรงชีวิตในระบบนิเวศและผลกระทบต่อสังคมวิทยาพันธุ์รุกรานในระบบนิเวศของน้ำ ชนิดเป้าหมายสามรุกรานปลานิล และใช้เป็นพิพิธภัณฑ์สัตว์น้ำปลา (Fig. 1, 2, 3)ปลานิลผลกระทบต่อระบบนิเวศของสามปลาหมอสายพันธุ์รุกรานในแม่น้ำเจ้าพระยาด้านล่างกรุงเทพมหานคร ไทย: ความหลากหลายทางชีวภาพ พันธุ์รุกราน ระบบนิเวศโพรง Cichlidaeปลารุกรานได้แนะนำไปยังเอเชียตะวันออกเฉียงใต้เป็นทรัพยากรอาหาร ลูกบอล หรือfor sport fishing. Many of these fishes are already established in the natural environment and mostly have anegative impact on the native ecosystems, representingfew studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversityhotspot, harboring many types of organisms. Therefore, it is necessary to elucidatspecies that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecologicaland sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasiveand O. mossambicusused as aquarium fish (Fig. 1, 2, 3).Ecological impact of three invasive cichlid species in lower Chao Phraya River,Bangkok, Thailand: biodiversity, invasive species, ecological niche, Cichlidaeinvasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, orfor sport fishing. Many of these fishes are already established in the natural environment and mostly have anegative impact on the native ecosystems, representing one of the largest threats to biodiversity. However, onlyfew studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversityhotspot, harboring many types of organisms. Therefore, it is necessary to elucidatspecies that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecologicaland sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasiveO. mossambicus introduced as food resources andEcological impact of three invasive cichlid species in lower Chao Phraya River,Bangkok, Thailand: biodiversity, invasive species, ecological niche, Cichlidaeinvasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, orfor sport fishing. Many of these fishes are already established in the natural environment and mostly have aone of the largest threats to biodiversity. However, onlyfew studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversityhotspot, harboring many types of organisms. Therefore, it is necessary to elucidatspecies that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecologicaland sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasiveintroduced as food resources andEcological impact of three invasive cichlid species in lower Chao Phraya River,Place of fieldwork: ThailandName: DAIKI TOMOJIRIinvasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, orfor sport fishing. Many of these fishes are already established in the natural environment and mostly have aone of the largest threats to biodiversity. However, onlyfew studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversityhotspot, harboring many types of organisms. Therefore, it is necessary to elucidate the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
introduced as food resources and
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Place of fieldwork: Thailand
Name: DAIKI TOMOJIRI
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
introduced as food resources and
Ecological impact of three invasive cichlid species in lower Chao Phraya River,
Year: 2014
Place of fieldwork: Thailand
Name: DAIKI TOMOJIRI
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
introduced as food resources and Cichlasoma
Year: 2014
Place of fieldwork: Thailand
Name: DAIKI TOMOJIRI
invasive fishes have been introduced to Southeast Asia as food resource, aquarium fish, or
for sport fishing. Many of these fishes are already established in the natural environment and mostly have a
one of the largest threats to biodiversity. However, only
few studies are available about invasive fish species in Southeast Asia, a region that is considered a biodiversity
the influence of invasive fish
species that have been introduced to Southeast Asia. This study focuses on Thailand and assesses the ecological
and sociological impacts of invasive species on its aquatic ecosystems. The target species are three invasive
Cichlasoma Figure 2. Cichlasoma uropht
Figure 3. Oreochromis mossambicu
The purpose of this study is to assess the impact of the invasive Cichlidae species on the native ecosystem and
human activities related to food habits, aquaculture, etc. The biological part of the research studied the feeding
habits of Cichlidae
contents analysis and stable isotope analysis. The sociological research addresses the impact on human activities
by conducting surveys and interviews.
There was a si
introduced species are generally considered to have negative impact on the native ecosystems and therefore
should be eliminated. In Thailand, however most of the
value and, apart from few biologists, they are not aware of their impact on the ecosystem. Moreover, Thai people
usually release organisms, most of which are introduced species, for belief. There ar
different types of introduced species (Fig. 4). This finding was unexpected and entailed correct evaluation of
Cichlasoma uropht
Oreochromis mossambicu
The purpose of this study is to assess the impact of the invasive Cichlidae species on the native ecosystem and
human activities related to food habits, aquaculture, etc. The biological part of the research studied the feeding
habits of Cichlidae in order to elucidate the ecological niche they occupy by using two methods, the stomach
contents analysis and stable isotope analysis. The sociological research addresses the impact on human activities
by conducting surveys and
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