Structure of Macrozoobenthos of the East Dongting Nature Reserve, with Emphasis on Relationships with Environmental Variables

Xie, Zhicai; Cai, Qinghua; Tang, Tao; Ma, Kai; Liu, Ruiqiu; Ye, Lin

doi:10.1080/02705060.2003.9663976

Cited by 11 publications

(7 citation statements)

References 21 publications

(13 reference statements)

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“…Similar features have been found in Lake Dongting, another large Yangtze-connected lake and the 2nd largest freshwater lake in China (Dai et al, 2000;Xie et al, 2003). The great abundance of bivalves in Lake Poyang might be a result of the prevalence of sandy bottoms, which are preferred by the dominant filterer C. fluminea (Karatayev et al, 2003).…”

Section: Figuresupporting

confidence: 54%

Community structure and decadal changes in macrozoobenthic assemblages in Lake Poyang, the largest freshwater lake in China

Cai

Zhen-bin

et al. 2014

Knowl. Managt. Aquatic Ecosyst.

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Key-words:Yangtze River, floodplain lake, macrozoobenthos, community structure, sand mining Lake Poyang is the largest freshwater lake in China and contains unique and diverse biota within the Yangtze floodplain ecosystem. However, knowledge of its macrozoobenthic assemblages remains inadequate. To characterize the current community structure of these assemblages and to portray their decadal changes, quarterly investigations were conducted at 15 sites from February to November 2012. A total of 42 taxa were recorded, and Corbicula fluminea, Limnoperna fortunei, Gammaridae sp., Nephtys polybranchia, Polypedilum scalaenum and Branchiura sowerbyi were found to dominate the community in terms of abundance. The bivalves Corbicula fluminea, Lamprotula rochechouarti, Arconaia lanceolata and Lamprotula caveata dominated the community in biomass due to their large body size. The mean abundance of the total macrozoobenthos varied from 48 to 920 ind·m −2 , the mean biomass ranged from 28 to 428 g·m −2 . The substrate type affected strongly the abundance, biomass, and diversity of the macrozoobenthos, with muddy sand substrates showing the highest values. Compared with historical data, remarkable changes were observed in the abundance of macrozoobenthos and the identity of the dominant species. The mean total abundance decreased from 724 ind·m −2 in 1992 to 228 ind·m −2 in 2012. The dominant species have shifted dramatically. Large unionids were dominant before 1998, whereas pollution-tolerant species (e.g., Branchiura sowerbyi) increased in dominance after 2008. Our findings should have implications for the conservation of the benthic biodiversity of this large Yangtzeconnected lake. RÉSUMÉLa structure des communautés et les changements décennaux dans les assemblages du macrozoobenthos du lac Poyang, le plus grand lac d'eau douce en Chine Mots-clés :fleuve Yangtze, Le lac Poyang est le plus grand lac d'eau douce en Chine et contient des biotes uniques et diversifiés de l'écosystème de la plaine inondable du Yangtzé. Cependant, la connaissance de ses assemblages macrozoobenthiques reste insuffisante. Pour caractériser la structure de la communauté actuelle de ces assemblages et présenter leurs changements décennaux, des inventaires

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Section: Figuresupporting

confidence: 54%

Community structure and decadal changes in macrozoobenthic assemblages in Lake Poyang, the largest freshwater lake in China

Cai

Zhen-bin

et al. 2014

Knowl. Managt. Aquatic Ecosyst.

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“…(Pratiwi, 2010), keanekaragaman mencakup 2 hal penting yaitu banyaknya jenis yang ada dalam suatu komunitas dan kelimpahan dari masing -masing jenis tersebut, sehingga semakin kecil jumlah jenis dan variasi jumlah individu tiap jenis atau ada beberapa individu yang jumlahnya lebih besar maka keanekaragaman suatu ekosistem akan mengecil. Menurut Xie (2003), menyatakan bahwa kelimpahan makrozoobentos dipengaruhi oleh beberapa faktor yang paling berpengaruh diantaranya adalah kedalaman air, pH, konduksivitas, dan Ca 2+ , adalah faktor lingkungan yang signifikan mempengaruhi pola makrozoobentos. Tingkat eutrofikasi juga dapat menjadi faktor keanekaragaman makrozoobentos, semakin tinggi tingkat eutrofikasi maka semakin rendah keanekaragaman makrozoobentos dan beberapa spesies memiliki kemampuan toleransi terhadap oksigen terlarut (Gong & Xie, 2001).…”

Section: Indeksunclassified

Keanekaragaman Makrozoobentos di Pantai Tukak Kabupaten Bangka Selatan

Rosalina

Sofarini

Serdiati

et al. 2022

Jurnal Kelautan Nasional

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Makrozoobentos adalah hewan yang hidup di dasar perairan. Makrozoobentos dipergunakan sebagai hewan indikator terhadap pencemaran di suatu perairan. Penelitian tentang makrozoobentos di Pantai Tukak Kabupaten Bangka Selatan telah dilakukan pada April 2012. Tujuan penelitian ini menghitung kepadatan, kepadatan relatif, frekuensi kehadiran, nilai penting, keanekaragaman, keseragaman, dominansi dan korelasi antara parameter fisik-kimia perairan dengan keanekaragaman. Metode yang digunakan adalah Purposive Random Sampling. Hasil penelitian menunjukkan bahwa makrozoobenthos yang ditemukan dalam stasiun pengamatan terdiri dari 30 spesies dari kelas Gastropoda, Bivalvia, Polychaeta, Merostomata, Holothuroidea, Asteroidea dan Crustacea. Nilai kepadatan 52-745 ind/m2. Semua stasiun memiliki kepadatan relatif dan frekuensi relatif yang sama yaitu 100. Semua stasiun memiliki Nilai penting yang sama yaitu 200. Nilai keanekaragaman berkisar antara 1,682 – 2,413. Nilai keseragaman jenis berkisar antara 0,427 - 0,881. Nilai dominansi berkisar antara 0,108 - 0,219. Korelasi antara keanekaragaman dengan salinitas, pH, liat, DO, debu dan nitrogen adalah positif. Nilai korelasi antara keanekaragaman dengan suhu, pasir, kecepatan arus, C-organik dan fosfor adalah negatif.

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“…Menurut Xie (2003), menyatakan bahwa kelimpahan makrozoobentos dipengaruhi oleh beberapa faktor yang paling berpengaruh diantaranya adalah kedalaman air, pH, konduksivitas, dan CA 2+ , adalah faktor lingkungan yang signigfikan mempengaruhi pola macrozoobentos.…”

Section: Pendahuluanunclassified

Makrozoobhentos di Pesisir Pantai Kalaki Kec. Palibelo Kab. Bima Nusa Tenggara Barat

Noris¹

2021

BIOEDUKASI

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Sampling of macrozoobenthos was carried out in the coastal areas of Kalaki, Pallibelo sub-district, Bima, consisting of Station I (the coastal area near the salt ponds) and Station II (the coastal area far from the salt ponds). Determination of the station is done by purposive sampling method. This type of research is a quantitative exploratory survey. The type of data taken is 1) macrozoobhentos data, 2) habitat data (abiotic factors). Data analysis uses the shannon-wiener index (H '), the Population Density Index (KP), and the Krebs Uniformity Index (E). The results showed temperature (30-33 oC:

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Structure of Macrozoobenthos of the East Dongting Nature Reserve, with Emphasis on Relationships with Environmental Variables

Cited by 11 publications

References 21 publications

Community structure and decadal changes in macrozoobenthic assemblages in Lake Poyang, the largest freshwater lake in China

Community structure and decadal changes in macrozoobenthic assemblages in Lake Poyang, the largest freshwater lake in China

Keanekaragaman Makrozoobentos di Pantai Tukak Kabupaten Bangka Selatan

Makrozoobhentos di Pesisir Pantai Kalaki Kec. Palibelo Kab. Bima Nusa Tenggara Barat

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