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Linking fish and crustacean taxonomic composition with seasonal contrasts in the soft-bottom intertidal zone.
Gondal, M A; Iqbal, S; Atique, U; Saher, N U; Qureshi, N A; Mahboob, S; Al-Ghanim, K A; Al-Misned, F.
Afiliação
  • Gondal MA; Department of Biosciences, COMSATS University Islamabad, Islamabad, Pakistan.
  • Iqbal S; Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan.
  • Atique U; Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan.
  • Saher NU; Department of Bioscience and Biotechnology, Chungnam National University, South Korea.
  • Qureshi NA; Centre of Excellence in Marine Biology, University of Karachi, Pakistan.
  • Mahboob S; Government College Women University, Faisalabad, Pakistan.
  • Al-Ghanim KA; Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia.
  • Al-Misned F; Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia.
Braz J Biol ; 81(4): 1036-1049, 2021.
Article em En | MEDLINE | ID: mdl-33175007
The primary objective of this study was to investigate the seasonal fish and crustacean variations concerning taxonomic composition, species richness, and diversity in sandy beach habitat. For this purpose, we investigated the Sonmiani Hor lagoon area during four distinct seasons, i.e., northeast (NE) monsoon, pre-monsoon, south-west (SW) monsoon, and post-monsoon for one year. During each haul, the net was pulled about 100m along the beach in 0.5m depth. The results showed a strong linear correlation between the diversity index and equitability in fishes (r = 0.978). The diversity index was strong negatively correlated with the abundance and biomass (r = -0.978, -0.972, respectively). The physical attributes like sea surface water temperature and salinity showed a strong negative effect on species assemblages (r = -0.981 and -0.943, respectively). The mean air and water temperature illustrated approximately 3°C difference during NE and pre-monsoon seasons. However, salinity, pH, and electrical conductivity did not show any significant seasonal variabilities. Under the ecological indices, the fish species displayed higher diversity (H' = 3.19) during SW monsoon, whereas the lowest diversity was observed during pre-monsoon (H' = 1.58). The equitability and species richness, however, remained more noticeable during SW monsoon (J' = 0.81). The total number of individuals of fish and crustaceans reached 4799 with 3813 fish individuals and 986 individuals of crustaceans. A total of 27 families of fish while five crustacean families comprising of 30 genera and 38 fish species while ten genera and 17 species of crustaceans were recorded. Liza subviridis displayed the highest abundance among the sampled fish species. In conclusion, fish species constituted a significant part of the coastal fauna in the study area. The seasonal variations displayed distinct variations in fish species composition and diversity.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ecossistema / Peixes Limite: Animals / Humans Idioma: En Revista: Braz J Biol Assunto da revista: BIOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Paquistão País de publicação: Brasil

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ecossistema / Peixes Limite: Animals / Humans Idioma: En Revista: Braz J Biol Assunto da revista: BIOLOGIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Paquistão País de publicação: Brasil