Tuna Fisheries in India: India’s tuna fisheries have seen interesting recent trends, with a shift towards targeting oceanic resources and a focus on sustainability. What is Tuna Fishery? The tuna fishery is the commercial fishing industry that targets tuna species. Tuna are highly migratory fish found in temperate, tropical, and subtropical waters around the world….
Animal Diversity: Protecting animal diversity is critical, especially as our environment faces constant change. It’s a complex issue, but here’s a breakdown of why it’s important and what we can do? Animal Diversity Animal diversity is truly remarkable. There are estimated to be between 3 and 30 million different animal species on Earth, each with…
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Phylum Protozoa: The Phylum Protozoa comprising a diverse group of unicellular organisms. Let’s explore their characteristics and classification. Defination: The Protozoa may be defined as ‘microscopic, acellular animalcules existing singly or colonies, without tissues and organs, having one or more nuclei. When in colonies, they differ from Metazoa in having all the individuals alike except…
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Phylum Cnidaria: Cnidaria derives from the Greek word “cnidos,” which means “stinging thread.” Defination: The cnidaria may be defined as “diploblastic Metazoa with tissue grade of construction having nematocysts and a single gastrovascular cavity or the coelenteron.” The phylum Cnidaria is a large group of aquatic invertebrates, with over 11,000 described species. They are mostly marine…
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Phylum Arthropoda: Arthropods are the largest phylum in the animal kingdom, making up over two-thirds of all known animal species. They are incredibly diverse and can be found in almost every habitat on Earth, from the deepest oceans to the highest mountains. Here are some of the general characteristics of arthropods General Characters of Phylum…
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Phylum Mollusca: It is the second largest phylum in animal kingdom and consists of over 150,000 marine, freshwater and terrestrial species. Mollusca, the second largest animal phylum after Arthropoda, is a diverse group of soft-bodied invertebrates . They are found in almost all aquatic environments, from freshwater to the deepest parts of the ocean, as…
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Annelida: The phylum annelida was first coined by LAMARCK (1801) (Gr., annulus – little ring + eidos – form) for the higher segmented worms. There are around 16500 species included in the phylum Annelida. Appearence of metamerism represents their greatest Advancement, so they are called a Segmented worms. The unique characteristic of the phylum Annelida is metamerism….
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