Journal of Zoology and Systematics <p style="margin: 0in;"><span style="font-size: 10.0pt;">Journal of Zoology and Systematics is an open peer-reviewed journal that considers articles and reviews articles on all aspects of animal sciences.</span></p> <p style="margin: 0in;"><strong><span style="font-size: 10.0pt;">ISSN:</span></strong><span style="font-size: 10.0pt;"> 3005-8309</span></p> <p style="margin: 0in;"><strong><span style="font-size: 10.0pt;">Frequency:</span></strong><span style="font-size: 10.0pt;"> Semiannual</span></p> <p style="margin: 0in;"><strong><span style="font-size: 10.0pt;">Access:</span></strong><span style="font-size: 10.0pt;"> Open</span></p> <p style="margin: 0in;"><strong><span style="font-size: 10.0pt;">Publication Charges:</span></strong><span style="font-size: 10.0pt;"> <a href="">Click here</a></span></p> <p style="margin: 0in;"><strong><span style="font-size: 10.0pt;">Quick Submission: <a href="">CLICK HERE TO SUBMIT</a></span></strong></p> en-US (Dr. Laiba Shafique) (Dr. Shakeela Parveen) Mon, 27 May 2024 00:00:00 +0000 OJS 60 Heavy Metals Cause Toxicity, Histopathological Abnormalities and Oxidative Stress in Major Carps (Catla catla, Labeo rohita and Cirrhinus mrigala) <p>An aquatic ecosystem is significantly contaminated by the unrestricted release of heavy metals from agricultural and industrial waste. Enhancement of industries correlates with improper dumping of waste products, influencing water pollution via releasing elevated concentrations of heavy metals, including nickel (Ni), chromium (Cr), copper (Cu), silver (Ag), cadmium (Cd), zinc (Zn), and iron (Fe). Metals are the primary motive for causing a variety of anomalies in aquatic animals, including fish. Commercially, humans use freshwater fish as food in various regions of Asia. The excessive release of these metals causes toxicity in fish, which is unsafe for human consumption. Heavy metals cause histological alteration and abnormalities in various fish species, including Indian significant carps (Thala, rohu, mori). Additionally, their toxicity causes oxidative stress in aquatic species. Various techniques have recently been applied to reduce toxic contaminants in marine environments. However, the bioremediation process plays a major role in lowering the toxicants through microorganisms, especially various species of bacteria. The objective of the recent study was to specify the specific organs (liver, gills, kidney, brain, muscle, and heart) of fish that are examined for histopathological impacts. </p> Maria Saeed Khan, Abdul Ghaffar, Habiba Jamil, Shumaila Khalid, Batha Tafazul Copyright (c) 2024 Sat, 01 Jun 2024 00:00:00 +0000 Review on Fisheries Resources and the Effect of Marine Pollution in Coastal Waters of Pakistan <p>The people who reside in the Balochistan and Sindh Provinces rely on the abundant fish and shellfish resources in Pakistan's coastal waters for food and a living. The fish populations in the two marine provinces are at different levels because of their very different topographies. Fisheries make a minimal contribution to the national GDP (0.32%), and their contribution to Pakistan's agricultural GDP is 1.4%, whereas 0.01% of employment is derived from fisheries. Fish production reached 800,000 metric tonnes in 2022, with varying production from marine waters. Just 25% of the country's total fishery production was exported, with 496 million US dollars. The stagnant trend in fish production, especially in Sindh province, indicates that fish stocks are being overfished. The Government of Pakistan's Marine Fisheries Department and the FAO worked together from 2009 to 2015 to conduct a number of fish stock assessment surveys. The final evaluation report states that large fishing fleets and current fishing practices amount to "fishing for catastrophe," with the principal fish populations in Pakistani seas being overfished and decimated by 60-90 percent. Prominent ecological changes include the decrease of large-bodied, slowly growing, highly valuable predatory species; an increase in short-lived, fast-growing, small-sized species with low commercial value; a wide variety of cephalopods, mainly squids and cuttlefish (an opportunistic, fast-growing group); and an abundance of jellyfish, which further disrupts resources severely. The fishing fleet's overcapacity, harmful fishing gear, inadequate storage on fishing vessels, lack of cool chain maintenance, inadequate landing place infrastructure, and destruction of mangroves are some of the major problems facing marine fisheries. Along the Karachi shore, the primary effects of pollution are habitat loss, eutrophication in some areas due to deteriorating water quality, hazardousness to aquatic life, particularly to the commercial species’ larval stages, suffocation of intertidal marine vegetation and animals, sub-lethal effects on development and reproduction, red tides, pathogen-contaminated fish and shellfish, and the bioaccumulation of hazardous substances, especially heavy metals. Ultimately, these factors lead to the nearshore ecosystem depleting its marine life resources.</p> Muhammad Wasim Khan Wasim, Ghulam Abbas Copyright (c) 2024 Fri, 14 Jun 2024 00:00:00 +0000 Serological effects of cypermethrin on the kidneys of rabbit (Oryctolagus cuniculus) <p>Cypermethrin a commonly used synthetic pyrethroid insecticide, has become a big concern due to its harmful impact on animals. In this study, cypermethrin's (CY) serological effects were studied on the kidneys of rabbit (<em>Oryctolagus cuniculus</em>). Twenty rabbits were divided into four groups including three experimental (G<sub>2</sub>, G<sub>3</sub> &amp; G<sub>4</sub>) and one control group (G<sub>1</sub>). The three experimental groups were exposed to 500mg/kg (G<sub>2</sub>), 1000mg/kg (G<sub>3</sub>), and 1500mg/kg (G<sub>4</sub>) of dose of cypermethrin respectively, every day for fifteen days. Blood sampling was done on the 5th, 10th, and 15th day of the experiment, the serum was separated from blood samples and two parameters including urea and creatinine were studied. The results indicated that both Urea and Creatine values were significantly different (p≤0.05) in all three experimental groups that were given cypermethrin treatment compared to the control group. In conclusion, cypermethrin is highly dangerous for mammals including rabbits when exposed to high doses.</p> Habiba Shabbir, Dilawar Hussain, Zahra Hussain, Maham Rafiq, Khadeeja Akram, Areeba Subtain, Shanza Nazar, Mahnoor Raja Copyright (c) 2024 Mon, 27 May 2024 00:00:00 +0000