123 research outputs found
Taxonomy and diversity of commercially important crustaceans
Crustaceans are a remarkable group of shelled animals (arthropods) that thrive in
almost all watery habitats, with a few even exploring land. This incredibly diverse
group boasts over 65,000 species found across the globe. Sizes range from microscopic
creatures a mere tenth of a millimeter long to gigantic crabs, lobsters, and isopods
reaching lengths of 4 meters and tipping the scales at 20 kilograms
Sea turtle diversity and taxonomy
There are seven species of sea turtles found worldwide, belonging to six genera and
two families. Five of these species inhabit India's coastline: olive ridley (Lepidochelys
olivacea), green (Chelonia mydas), hawksbill (Eretmochelys imbricata), loggerhead
(Caretta caretta), and leatherback (Dermochelys coriacea). Sadly, sea turtle populations
face global decline due to factors such as over-exploitation, pollution, habitat loss,
vessel strikes, and accidental bycatch in fishing gear
Marine mammal diversity and taxonomy
Marine mammals are warm-blooded, aquatic vertebrates within the class Mammalia.
They breathe air, use fins and flippers for movement, and nurse their young with milk.
There are four taxonomic groups: cetaceans (whales, dolphins, and porpoises),
sirenians (manatees and dugongs), pinnipeds (walruses, seals, and sea lions), and
fissipeds (polar bears and sea otters). Cetaceans and sirenians live their entire lives in
water, while other marine mammals may come ashore for parts of their life cycl
Diversity of commercially important crustaceans
Crustaceans are a diverse group of arthropods
found in nearly all aquatic environments, with
some even venturing onto land. They consist of
more than 65,000 species distributed worldwide.
Crustaceans show a great range of sizes from
microscopic species measuring as little as a tenth
of a millimeter to giant crabs, lobsters, and
isopods with a body size of up to 4 meters in
length, and weighing up to 20 kilograms.Thus
they are a very diverse group of invertebrate
animals that includes active animals such as
crabs, lobsters, shrimp, krill, copepods,
amphipods, and more sessile creatures like
barnacles.Like other arthropods, crustaceans
have an exoskeleton composed of chitin, which
they molt when they grow
Marine Mammal Diversity in Indian Waters
Marine mammals are aquatic vertebrates within
the class mammalia, characterized by being
warm-blooded, breathing air through lungs,
utilizing fins and flippers for locomotion, and
producing milk to nurture their offspring. They
are into four taxonomic groups: cetaceans
(whales, dolphins, and porpoises), sirenians
(manatees and dugong), pinnipeds (walrus, seals
and sea lions), and fissipeds (polar bear and sea
otters). While cetaceans and sirenians remain
exclusively in water throughout their lives, other
marine mammals may come ashore
intermittently for various reasons during specific
stages of their life cycl
Perspectives and future vision for augmenting seafood export from India
India is bestowed with a long coastline of 8129 km,
0.5 million sq.km of continental shelf, 2.02 million
sq.km of EEZ, and a catchable annual marine fishery
potential of 4.41 million tons. India is the second
largest fish-producing country in the world accounting
for 7.56 percent of global production and 4th largest
fish exporter. In 2021-22, India's total marine fish
production stood at 3,05 million tons
Report on morphological abnormality in Scylla serrata
Morphological abnormalities most commonly
reported in crabs are alterations in carapace (mainly
number and shape of antero-lateral teeth),
chelipeds, walking legs and shape of the abdomen.
Uran, a fishing village in Raigad district of
Maharashtra, supports a good fishery of Scylla
serrata commonly known as giant mud crab, found
in the coastal estuarine and mangrove areas
Plankton taxonomy
Plankton includes all those organisms that live suspended in the water column
of aquatic ecosystems. Unlike nektons, which swim actively against water currents,
plankton are characterized by feeble power of locomotion and drift in the water
column at the mercy of currents, winds, and tides. The term тАЬplanktonтАЭ was coined by
Victor Hensen from the Greek word "plankton" meaning drifter or wanderer
Sustainable development goals and fisheries sector: Progressing towards a sustainable future
With the present population trends, the global food
demand is expected to rise 50% by 2030 and it
becomes imperative to manage the resources thus to
sustain this demand. The United Nations Sustainable
Development Goals (SDGs) are a global call for action
to achieve sustainable development by 2030 through
a combined effort from all the countries. This Agenda
2030 for Sustainable Development is intended to
foster growth while safeguarding the environment and
bringing out a safer, healthier, and more prosperous
world by 2030. SDGs are centered on five PтАЩs viz.
people (wellbeing of all people), planet (protection of
the earthтАЩs ecosystems), prosperity (continued economic
& technological growth), peace (securing peace) and
partnership (improving international cooperation)
рдорд╣рд╛рд░рд╛рд╖реНрдЯреНрд░ рдХреА рдбреЛрд▓ рдЬрд╛рд▓ рдорд╛рддреНрд╕реНрдпрд┐рдХреА
рдорд╣рд╛рд░рд╛рд╖реНрдЯреНрд░ рдХреА рдбреЛрд▓ рдЬрд╛рд▓ рдорд╛рддреНрд╕реНрдпрд┐рдХ
- тАж