نوع مقاله : مقاله کامل علمی - پژوهشی
نویسندگان
گروه زیست شناسی دریا دانشکده منابع طبیعی و علوم دریایی دانشگاه تربیت مدرس
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The process of bioirrigation is one of the most important interactions between benthic invertebrates and marine sediments, which plays a fundamental role in biogeochemical cycles, nutrient exchange, and the stability of coastal ecosystems. We investigated the role of benthic invertebrates in bioirrigation process as well as its relationship with biodiversity and functional traits of the benthic species. Sampling was conducted in winter 2023 in the Musa Bay in the northwest of the Persian Gulf. Samples were collected from three transects which included two habitats namely mangrove habitats and surrounding mudflats., A total of 404 samples belonging to 13 species were identified. The bioirrigation was calculated using the biomass, abundance, burrow type, feeding type and injection depth of the species. The results showed that Shannon-Wiener, Simpson and species evenness indices in the mangrove habitat were significantly higher than that of the surrounding mudflat habitat. The complex structure of mangrove roots and the influx of organic matter from the tide provide favorable conditions which increases bio-irrigation rates in mangrove habitats. Results showed that detrivore were the most dominant group at both habitats. In addition, U and Y shape burrows and blind ended burrows were the dominant burrow type in mangrove and mudflats, respectively. Burrow depth and feeding type are key factors in exchange of water and dissolved substances between sediments and water column.
کلیدواژهها [English]
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