人类活动对尼日利亚热带Ikang河底栖大型无脊椎动物和鱼类区系分布和多样性的影响

Q3 Environmental Science Ribarstvo, Croatian Journal of Fisheries Pub Date : 2023-03-01 DOI:10.2478/cjf-2023-0001
A. Andem, C. Odey, Solomon B. Beshel, Opeyemi Babasegun Ojo, M. Etuk
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引用次数: 0

摘要

摘要尼日利亚东南部的热带水生态系统通常由红树林沼泽和河岸森林组成,这两个地区在过去60年中都已濒临灭绝。本研究的目的是确定人类对水质对热带河(Ikang)底栖大型无脊椎动物和鱼类分布和多样性的影响和活动的程度。对该河的地表水、底栖大型无脊椎动物和鱼类进行了采样和鉴定,以创建一个参考信息数据库。已鉴定出两(2)门的十二(12)种底栖大型无脊椎动物。1号站的底栖大型无脊椎动物丰度最高,为58(35.65%),而3号站的丰度最低,为52(31.70%)。坦盖里乌卡是最丰富的底栖大型底栖无脊椎动物,丰度百分比为28(17.07%),而Dinocras sp.、Macromia sp.和Gomphus sp.是丰度百分比为3.66%的最不丰富的底栖巨型无脊椎动物。此外,鉴定出6科7种鱼类。在研究过程中,克拉贝科的数量最多,而锦囊鱼科的数量最少。河流温度与江豚科和麻鱼科呈正相关,与斑尾鹬科呈负相关,与水豚科无相关。总溶解固体(TDS)与锦鱼科、麻鱼科和克拉鱼科呈正相关,而电导率仅与石首鱼科呈正相关性,与锦鱼、麻鱼和克拉鱼科负相关。海底大型无脊椎动物和鱼类的丰度和多样性通常受到水的物理和化学特性、食物的可获得性以及人类影响和活动的程度的影响。为了确保我们环境中的可持续水质和生物多样性保护,有必要对河流和周围的生态系统进行适当的管理。
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Human-Induced Impact on the Distribution and Diversity of Benthic Macroinvertebrates and Fish Fauna in the Tropical Ikang River, Nigeria
Abstract South-eastern Nigeria’s tropical water ecosystems typically consist of mangrove swamps and riparian forests, both of which have become endangered in the last six decades. The purpose of this research was to determine the extent of human-induced impact and activities on the effect of water quality on the distribution and diversity of benthic macroinvertebrates and fish fauna in the Tropical River (Ikang). The river’s surface water, benthic macroinvertebrates, and fish fauna were sampled and identified to create a database of reference information. Twelve (12) species of benthic macroinvertebrates from two (2) phyla were identified. Station 1 had the highest benthic macroinvertebrate abundance of 58 (35.65%), while Station 3 had the lowest abundance of 52 (31.70%). Uca tangeri was the most abundant benthic macroinvertebrate with a percentage abundance of 28 (17.07%), while Dinocras sp., Macromia sp., and Gomphus sp. were the least abundant benthic macroinvertebrates with a percentage abundance of 3.66%. In addition, seven (7) fish species from six (6) families were identified. During the study, the family Claroteidae was the most abundant, while the family Carangidae was the least abundant. The temperature of the river had a positive correlation with the families Carangidae and Mugilidae, a negative correlation with the family Clupeidae, and no correlation with the family Claroteidae. Total dissolved solids (TDS) correlated positively with the families Carangidae, Mugilidae, and Clariidae, while conductivity correlated positively only with the family Sciaenidae and negatively with the families Carangidae, Mugilidae and Clariidae. The abundance and diversity of benthic macroinvertebrates and fish fauna were generally influenced by the physical and chemical characteristics of the water, the availability of food, and the extent of human impacts and activities. In order to ensure sustainable water quality and biodiversity conservation in our environment, it is necessary to manage the river and the surrounding ecosystem appropriately.
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来源期刊
Ribarstvo, Croatian Journal of Fisheries
Ribarstvo, Croatian Journal of Fisheries Environmental Science-Ecology
CiteScore
1.10
自引率
0.00%
发文量
15
审稿时长
10 weeks
期刊介绍: The Croatian Journal of Fisheries was established in 1938 and today possesses a long-term tradition of publishing papers that deal with both freshwater and marine fisheries. Areas covered by the Journal include ichthyology, aquaculture, ecology and diseases of fish and other aquatic organisms, problems of open waters and other topics related to the fisheries field. Prior to publication, articles pass through rigorous review by senior scientists from around the world. The Journal features articles that reflect original research, interpretative content and subject matter of interest to the fisheries profession.
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