However, most caught off piers are fish under 5 kg in weight. California yellowtail are solitary or they may occur in small groups. The schools of juveniles are generally found in offshore waters, often near or beyond the continental shelf. The species is a powerful swimmer that is adapted to a pelagic life style and hence is prized by anglers. These fish are equipped with sensory cells (neuromasts) which are located
They can be found in depths between 50 feet and 300 feet. Red Snappers are a heavily regulated species with a smaller population. The Red Snapper is considered as reef fish, meaning that they eat smaller creature from the reefs (Oceana). Which consist of smaller fishes, crustaceans, octopuses, squids (Oceana). Most adult Red
Cuttlefish are marine organisms which classified into animalia kingdom. They are grouped into spiida order and cephalopoda class. The common cuttlefish are scientifically known as the Sepia officinalis. The cuttlefish fish possess W-shaped pupils, 2 tentacles which consist of the denticulated suckers. They vary in sizes.
Adaptation to live in the habitat lack of oxygen A. Crayfish: Crayfish lives in fresh water stream, which is an aquatic environment. The oxygen level in fresh water upper stream is higher than the lower stream, but the oxygen concentration is still low. The gills of crayfish are much bigger than the size at first glance. They occupied under the cephalothorax carapace in branched-shape and provided a large surface area to volume ratio to carry out gas exchange. Fresh water will be pulled into the cavity by the movement of the “gill bailers”.
Predation: Yellowfin Tunas are eaten by a wide variety of predators. When they are newly hatched, they are eaten by other fishes that specialize on eating plankton. As they grow, they are preyed upon by pelagic hunters including large tunas, wahoo, sharks, billfish and seabirds. Adult Yellowfins are not preyed upon except by largest and fastest such as toothed whales, largest billfishes, and some open ocean shark species such as the “mako” and great white. In general, because yellowfins are strong swimmers, they can escape most
Did you know that there are 28 species of clownfish, with many variations of colors and patterns living in the warm water? Whoa, that is a lot of colors. Hey Mate! I am Sydney, a clownfish living in Australia’s Great Barrier Reef. I am often mistaken
OCEANOGRAPHY PROJECT KILLER WHALE & BOTTLENOSE DOLPHIN BY NOAH HEBERT 1. Noah Hebert Research paper project February 10th, 2018 My first animal i would be talking about is the killer whale. More specifically the kingdom this animal comes from is the cetacea which is a diverse set of aquatic creatures such as porpoises, dolphins, and whales. Generally cetaceans are spread out worldwide but it’s shown that most of the species enjoy living in colder waters in both the southern and northern hemispheres. These animals that belong in this kingdom have evolved to adapt and prosper in the vast ocean.
Crayfish are decapods pertaining to the phylum arthropoda, which are invertebrates and contain an open-circulatory system.1 The system works by the hemolymph getting re-oxygenated in the gills before being transporting to the heart by brachio-cardiac veins and then pumped to sinuses that bathe tissues with oxygenated hemolymph.2 The crayfish contain a neurogenic heart that depends on neuronal input from cardiac ganglion.3 The neurogenic heart requires nerve impulses to produce contractions in contrast to a myogenic heart that can contract independently from the nervous system.3 The crayfish heart will beat due to the reaction of the ganglion to stimuli in the environment.4 Stimuli will affect the autonomic nervous system in the crayfish that control involuntary actions such as the heart rhythm.4 Neurotransmitters are the chemical signals in which the nervous system regulates both heart rate and contraction.3The autonomic nervous system breaks into two categories as parasympathetic system that is involved in relaxation of organs and the sympathetic system that will stimulate increased activity. Neurotransmitters can either increase or decrease heart rate by altering the patterns in neural activity of the heart.4 Crayfish are poikilotherms, which means they cannot metabolically thermoregulate thus conform to the ambient temperature in the water.
Animal: Jellyfish Hi, I’m Marvin Howell, and I am here to show you the interesting world of jellyfish. Jellyfish are some of the most versatile creatures in the world, with the largest being larger than a minivan and the smallest being only the size of a cubic centimeter. First off, there is a misconception that jellyfish are actually fish. Without bones, brains, or blood, jellyfish are not actually classified as fish but rather they are classified as Cnidaria, a classification that they share with sea anemones. One more thing scientists have recently discovered a jellyfish called turritopsis nutricula which they believe to be immortal, for it can return back to its embryonic state after it sustains damage, even after it has reached adulthood.
5) No scuba diving allowed. 6) No flash photography allowed. 7) Absolutely no feeding of fish allowed Here are some interesting facts about whale sharks you ought to know: -They are the largest fish on earth - They are not related to whales but are a type of shark; a very tame shark which feeds mostly by filtering plankton. - Whale sharks can reach weights of up to 12,000 kilos, or 24,000 pounds!! -A whale shark needs to move its whole body from side to side in order to swim, so it can only reach speeds of up to 5km/hr.