Occurrence and temporal variation in the size-frequency distribution of2 bloom-forming jellyfishes, Catostylus perezi (L. Agassiz, 1862) and Rhizostoma pulmo (Cuvier, 1800), in the Indus Delta along the coast of Sindh, Pakistan

Waryani, Baradi; Siddiqui, Ghazala; Ayub, Zarrien; Khan, Shahzad Akbar

doi:10.3906/zoo-1401-13

Cited by 5 publications

(2 citation statements)

References 35 publications

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“…Very small, and illegal, mesh sizes (3.75-7.5 mm) are used in the netting of these gears (Waryani et al 2015) which retain every life form that enters in the range of these fishing gears including juvenile and undersized fishes (Ahmad and Hasan 1997). In the post-monsoon season, around 100-200 beach seine and estuarine bag nets are regularly operated in the surrounding areas of Keti Bandar.…”

Section: Study Areamentioning

confidence: 99%

Finfish diversity and seasonal abundance in the largest arid mangrove forest of the Indus Delta, Northern Arabian Sea

2016

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Finfish composition and seasonal abundance was studied in the world largest arid mangrove ecosystem of the Indus Delta, Pakistan. Sampling was done from February 2010 to July 2011 in a narrow creek with thick mangrove forest and in a wide creek with sporadic patches of mangrove forest along its banks. The sampling revealed 84 fish species, corresponding to 2,274 individuals in 60 genera and 29 families, weighing a total of 217 kg. A minimum of 8 species were recorded in December 2010 while a maximum of 32 species were recorded in April 2010 (average 21 ± 5.8). The most speciose families were the Mugilidae (9) followed bythe Sciaenidae (8) and the Ariidae (7), the remaining 26 families being represented by 1-5 species. The average sizes of 28 dominant species in the collection ranged from 76.9 to 284.6 mm (SL), consisting mostly of juveniles. Relative abundance (%) and relative biomass (%) of species was between 0.04 and 9.1 and 0.01-12.14, respectively. The Pearson correlation of 0.52 (r 2 0.27) was observed among the environmental parameters and found significant between temperature and dissolved oxygen (p < 0.03). The canonical correspondence analysis showed strong relationships of different salinity and temperature ranges with the diversity and biomass composition. The species occurrence frequency was 69% in the wide creek and 31% in the narrow creek. We conclude that the Indus Delta is a highly productive zone in terms of fish diversity, providing ideal habitat for a nursery rather than a fishing ground and propose it to be a marine protected area (MPA).

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Section: Study Areamentioning

confidence: 99%

Finfish diversity and seasonal abundance in the largest arid mangrove forest of the Indus Delta, Northern Arabian Sea

2016

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“…Recently, Lee et al (2013) and Prieto et al (2013) confirmed the validity of the morphological classification of R. pulmo as a separate species. As it's known, few demographic (Galil 2000, Kogovšek et al 2010, ecological (Lilley et al 2009, Gili et al 2009) and biological (Fuentes et al 2011, Purcell et al 2012, Waryani et al 2015 Here, phylogenetic analyses of R. pulmo were conducted on more samples collected along the Tunisian Coast, using sequences of mtDNA COI gene to: 1) describe in details the genetic diversity of R. pulmo in this region and 2) compare the present results with that previously published by Ramšak et al (2012) and Armani et al (2013) to check whether or not there is a recent evidence of genetic differentiation occurred by this species in the three biogeographic regions, Tunisian Coast, North Adriatic and Western Mediterranean. Table S1).…”

Section: Introductionmentioning

confidence: 99%

Significant genetic differentiation among meroplanktonic barrel jellyfishRhizostoma pulmo(Cnidaria: Scyphozoa) in the Mediterranean Sea

Faleh

Allaya

Armani

et al. 2017

African Journal of Marine Science

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Molecular data have shown that jellyfishes are more geographically restricted and evolutionarily divergent than previously thought. We examined genetic variation and divergence within the meroplanktonic barrel jellyfish Rhizostoma pulmo in the Mediterranean Sea; specific sampling areas were the northern Adriatic, western Mediterranean and Tunisian coast. A total of 19 sampling sites and 68 sequences of the mtDNA cytochrome c oxidase subunit I (COI) gene were used. Of the 68 COI sequences, 45 were newly collected specimens which originated from nine sampling sites along the Tunisian coast. A total of 24 haplotypes were obtained and the specimens sampled were characterised by relatively high levels of haplotype diversity (h = 0.866) and low levels of nucleotide diversity (Ï\u80 = 0.004). Haplotype network analysis showed the presence of three distinct phylogenetic lineages (populations), with separate geographic ranges in the northern Adriatic, western Mediterranean and Tunisian coast. The observed genetic differentiation between these three lineages was supported by the presence of significant genetic differentiation between the 19 populations (FST = 0.757, p < 0.001). The high level of genetic differentiation detected in the barrel jellyfish investigated could be attributed to either intrinsic and/or extrinsic barriers to genetic exchange between different populations that may have adapted to different environmental conditions

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First Record of Rhizostome Jellyfish Catostylus perezi Ranson 1945 (Cnidaria: Scyphozoa) from the Indian Coast

2019

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Occurrence and temporal variation in the size-frequency distribution of2 bloom-forming jellyfishes, Catostylus perezi (L. Agassiz, 1862) and Rhizostoma pulmo (Cuvier, 1800), in the Indus Delta along the coast of Sindh, Pakistan

Abstract: Blooms of jellyfishes were studied at 3 sites, namely Bhanbore, Mirpur

Cited by 5 publications

References 35 publications

Finfish diversity and seasonal abundance in the largest arid mangrove forest of the Indus Delta, Northern Arabian Sea

Finfish diversity and seasonal abundance in the largest arid mangrove forest of the Indus Delta, Northern Arabian Sea

Significant genetic differentiation among meroplanktonic barrel jellyfishRhizostoma pulmo(Cnidaria: Scyphozoa) in the Mediterranean Sea

First Record of Rhizostome Jellyfish Catostylus perezi Ranson 1945 (Cnidaria: Scyphozoa) from the Indian Coast

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