Posts

Classification of caudal fin

-
Image
  Classification of caudal fin  The caudal fin, or tail fin, in fish can be classified into different types based on its shape and structure. The caudal fin, or tail fin, is a critical anatomical feature in fish, serving various functions essential for survival. Here are the primary functions of the caudal fin: Propulsion : The caudal fin is the main propulsive force for most fish, allowing them to swim forward. By moving the fin side to side, fish generate thrust that propels them through the water. Different types of caudal fins provide varying degrees of speed and power. Maneuverability : The shape and flexibility of the caudal fin allow fish to make precise movements, including quick turns and sudden stops. This maneuverability is crucial for avoiding predators, catching prey, and navigating complex environments like coral reefs or dense vegetation. Stability: The caudal fin helps maintain balance and stability in the water, preventing the fish from pitching (tilting forward or bac
Post a Comment
Read more

GANGA ACTION PLAN

-
Image
Ganga Action Plan I (GAP I)     Ganga Action Plan I (GAP I) was the first major initiative taken by the Government of India to clean and restore the Ganga River, one of the most important and sacred rivers in the country. Launched in 1985, this plan was a response to the alarming levels of pollution affecting the Ganga due to untreated sewage, industrial effluents, and other waste discharges from various sources along its course. Key Aspects of Ganga Action Plan I: Objective: The primary objective of GAP I was to improve the water quality of the Ganga River to acceptable standards by preventing pollution from entering the river. Initially, the goal was to reduce pollution levels, but in a 1987 meeting led by Prof. M. G. K. Menon, the objective was revised to restoring the river's water quality to the "Bathing Class" standard. The Bathing Class standard includes the following criteria: Bio-Chemical Oxygen Demand (BOD):
Post a Comment
Read more

Aquatic animal health management - final countdown solution

-
Image
 Aquatic animal health management - final countdown solution An SPF animal can be defined as one coming from a population that has tested negative for specific pathogens for at least___ six months Two year three years five years Survival increased from _______in SPF Shrimp Culture : 30–35 to 60–65% 45–50 to 70–75% 65–70 to 90–95% 75–80 to 100% ________ present in a population at all times but occurring only in small numbers of cases Pandemic disease Zoonotic disease Enzootic disease Epidemic disease Basic cell and tissue components staining readily with acidic dyes is called ______ Basophilic Eosinophilic Acidophilic Chromophilic The component of an antigen which stimulates an immune response and which binds with antibody is called _____ Antigenic determinant Antibody determinant Receptor determinant Epitope determinant Material, such as fluid, cells, or cellular debris, which has escaped from blood vessels and has been deposited in tissues or on tissue surfaces ______ Effusion Exudate
Post a Comment
Read more