And many sea cucumbers provide a habitat for parasites such as crabs, worms, and snails. In some countries, echinoderms are considered delicacies. Around 50,000 tons of sea urchins are captured each year for food. They are consumed mostly in Japan, Peru, and France. Sea cucumbers are considered a delicacy in some South Eastern Asian countries.
Fish meal is clean, cooked, dried tissue of undecomposed fish. Fish meal contains protein: 55-70%, fats: 15%, mineral: 15%, vitamins, iron, calcium, phosphorous. The percentage of protein is high in fish meal as compare to other sources of protein which are used as peptone in formulation of laboratory media. The price of 500g nutrient agar is 2,222/-(HIMEDIA Laboratories PVT LTD) and the price 500g of experimental fish meal agar is 2000/-. (100ml distilled water + 2.8g experimental fish meal agar).
The brine shrimp were hatched from cysts in seawater and placed in jars, and the algae were contained in large flasks of seawater in various concentrations, for everyone to access. The number of brine shrimp were our independent variable and the algae concentration were our dependent variable. We obtained 6 clean jars for our group in which we created our miniature ecosystems. We labeled each jar with our group name, lab section number, and replicate number. After deciding on what algae concentration we wanted to hold constant in our jars, we calculated the volume of seawater and algae solution required to achieve the desired algae concentration of 50,000 cells/mL and a total volume of 50 mL (C1V1=C2V2).
The abdomen in female, or tail flap, is much broader than in the male crab. This broad tail flap allows accommodate and protect the very large number of eggs till hatching. In both male and female, the tip of the last segment of the tail flap is rounded. At the age of 4 to 5 years, the crab may weigh between 1 to 1.5
Hammerheads have wide-set eyes on the outer edges of the hammer adapted to give a wider and better visual range compared to other sharks. The eyes can rotate for a 360 degrees vision and one eye can see below while the other sees up simultaneously, however, the positioning of the eyes create a blind spot in front of the nose. The nostrils are expanded further enhancing their ability to follow scent and locate prey. Other features include two extra tall dorsal fins of different sizes. Most hammerheads have a lifespan of between 25 and 35 years though observations are currently indicating that more and more of this shark family live longer than 35
The Chromatophores give the animal a brown to olive-green appearance. The species is an active swimmer and burrower. Also, it is more active at night in open waters than it is during the daylight hours. The first 3 pairs of walking legs are chelate that in addition to its walking function, they help the animals to catch their food as well as in offending and defending. The two rounded, reddish-brown uropods are connected to the paddle-like telson.
Fish for Small Unheated Aquariums and Goldfish Bowls Filed under: Aquarium Fish Tanks andFish Tank Design andFreshwater Tropical Fish Certain fishes are often kept in bowls or small plastic aquariums that lack heating and filtration equipment. The fish most often kept in this way include goldfish, bettas, white cloud mountain minnows, and danios. Each of these fishes have different pros and cons when it comes to keeping them in this fashion. Goldfish, Carassius auratus: Superb in Large Unheated Aquariums Goldfish grow. Common goldfish can grow up to approximately 12 inches in length which is larger than some of the containers the juveniles are kept in.
Leather Back Turtle and its correlation with Human’s Food and Water Resourcing Activities. Species Description Weight: Adult: up to 2,000 pounds (900 kg) Hatchling: 1.5-2 ounces (40-50 g) Length: Adult: 6.5 feet (2 m) Hatchling: 2-3 inches (50-75 cm) Appearance: primarily black shell with pinkish-white coloring on their belly Lifespan: unknown Diet: soft-bodied animals, such as jellyfish and scalps, and pyro0somes Behavior: females lay clutches of approximately 100 eggs several times during a nesting season, typically at 8-12 day intervals. Life Cycle Juvenile leatherbacks may remain in tropical waters warmer than 26°C, near the coast, until they exceed 100cm in curved carapace length. Adults are pelagic and live in the open ocean, sometimes
*Paedocypris progenetica is the smallest fish (even smallest vertebrate) of the world.The size of mature female is7.9mm. It belongs to Indonesia. *Most fish reproduce by laying eggs but some fishes, (such as great white shark), give birth to live babies called pups. * A variety of low-pitched sounds are used by fish to convey messages to each other. *Some desert pupfish can live in hot springs that reach temperatures greater than 113°