It has fully scaled cheeks and gill covers, and the top of the head has few or no scales. |
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The monofilament gill net is an unforgiving device, designed to snag and tear the gills. |
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The main focus of most efforts to restrict gear is the gill net, considered to be the main cause of the depletion of local fisheries. |
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It's the gill nets though, and drift nets we find, the really, really large ones, and they're the ones we're most concerned about actually. |
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Speaking as a former bailiff in the region, I can assure you that many island crofters prefer the use of a gill net to a fishing rod. |
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Next, place two fingers just into the gill cover and slide the fingers forward until you reach the jaw bone. |
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The gill covers are also armoured with sharp edges that can draw blood if handled without care. |
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The opercular series comprises each gill cover and generally consists of four bones. |
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Seines at least collected less mud and debris than weirs and staked gill nets. |
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At school we had a free gill of milk each morning break as part of the government's plan to build a nation of healthy young things. |
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Combined with strong jaw muscles and gill covers that assist in forcefully expelling a stream of water, the mouth acts like a water pistol. |
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A new report reveals that Tanzania's population of dugongs is on the verge of collapse as a result of accidental entanglement in gill nets. |
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Organisms along the lines of the cephalochordate amphioxus use the gill apparatus for filter feeding. |
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Although they retain the chordate characters as adults gill slits are present only in the embryonic stages of land vertebrates. |
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Another myth is the claim human embryos go through a fish-like stage and display gill slits. |
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This may be illustrated by the gill slits in the embryos of higher vertebrates like reptiles, birds and mammals. |
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It shows a dense arrangement of gill filaments, which in clams like the Venus clam here shown are grouped into similar, multiple folds. |
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Water is taken in through the spiracles, passed over the gills, and expelled through the gill slits on the underside of the body. |
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Ichthyostega had seven digits in the feet and still retained some gill arch rudiments and fin rays in the tail. |
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Adults are uniformly brownish gray, shiny on top and pale on the ventral side and around gill slits. |
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Several Novembers ago, off the coast of Greenland, the captain of a fishing vessel was puzzled by one of the fish caught in the boat's gill nets. |
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They have long ugly snouts and gill slits which seem almost to encircle the whole head. |
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A similar species is the stargazer, which has two venomous spines, one each side behind the gill covers. |
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These are formed from fused hyoid rays and articulate with the succeeding gill arches. |
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Fishermen use weirs, traps, gill nets, and dip nets for alewives, which they consider one of the easiest fish to catch. |
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The nape lacks cirri, and the first gill arch attaches to the operculum, the latter characteristic distinguishing Tripterygiidae from Clinidae. |
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If so, that would mean females would hold fertilized eggs in their gill chamber for four to five months. |
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For some experiments, samples of gill, claw muscle, hepatopancreas, gonad, and thoracic ganglion were also removed to serve as controls. |
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However, the gill arches seem to be jointed and they appear to be closely related to paired fin-folds on the anaspid model. |
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Catsharks have moderately large spiracles, or respiratory openings, and five pairs of gill slits. |
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Their close relative, the muskellunge, have scales covering only the upper half of their cheek and gill covers. |
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Inside their gill chambers are mats and hair-like setae covered in bacteria. |
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It's lovely, you sort of follow a gill that has alders like the River Cover, but almost different trees, small and gnarled and ancient looking. |
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Their diet consists primarily of parasitic copepods and other invertebrates that are taken from the mouth and gill openings of larger fish. |
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Her cheese pudding has an ounce and a half of breadcrumbs, an ounce of cheese, one gill of milk and half an egg. |
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Their stream-lined bodies entirely lack hindlimbs, their forelimbs are reduced, they have lidless eyes, and large external gills and gill slits. |
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The lake is well stocked with trout, large and small mouth bass, blue gill, crappie, and catfish. |
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Its single-stalked fruit body is much like the surface of a mushroom gill, rich with spores. |
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They're gill breathers, which means they can't survive out of oxygenated water. |
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Presumably, the increased chaperone need is induced by exaggerated gill protein denaturation in response to elevated body temperatures during emersion. |
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Before climbing out onto land, mudskippers fill their over-sized gill chambers with water, creating an oxygen tank that allows them to breathe out of water. |
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Immediately after this, gut and gill all fish you wish to eat. |
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Bat rays are often caught in trawling and gill nets as unwanted by-catch. |
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What the books often don't tell you is that there are another set of spikes on the side of the gill plates, which can also inflict a painful sting. |
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The larger fish not only refrain from devouring these small cleaner fish, but actually readily open their mouth and gill cavities so that they are able to clean. |
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We conclude that potentiation of gill contraction is not a general characteristic of bivalves and that the uneven distribution is not phylogenetically based. |
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These weights have a hole or holes bored into them and help, with the aid of buoyant floats, keep the net vertical in the water and fished as a gill or seine net. |
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One hypothesis is that jaws developed from the first gill arches in as yet undiscovered or unidentified agnathan fish. |
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The cleithrum is the semi-circular bony structure that forms the posterior edge of the gill opening. |
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Fish with jaws usually have five functional pairs of gill arches. |
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Two gill nets, eight Atlantic salmon, one sea trout and a small wooden boat were forfeited by the court. |
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It has an extremely large mouth with minute teeth, elongated gill slits, a pointed snout, and a crescent-shaped caudal fin. |
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The hagfish will twist itself into a knot to squeeze or slough off the mucous, so that water can pass through the gill openings for respiration. |
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The branchiomeric musculature of more primitive jawless fishes would probably have been similar for each of the gill arches. |
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The mesh in gill nets designed to catch fish, such as salmon, are just the right size to entangle a swimming puffin. |
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A week later gill, 32, was taking a break in the Lake District, a picturesque sweep of mountains outside Manchester. |
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Forget Los Angeles, gill and Li currently have no plans to move to London where rent is so much more expensive than in Manchester. |
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It can be used to prepare short-term and long-term baths for fish which suffer from external parasites such as protozoan, skin and gill flukes. |
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The eggs develop in the gill chamber of the mollusk, and the young bitterlings leave their host about a month later. |
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Possible threats to moulting seaducks include mollusk harvest, gill net fisheries, disturbance, hunting, oil spills, aqua-culture industry. |
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They are distinguished by the bony striations on their gill covers and the dark spots that run along their flanks. |
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Freed from the need to worry about how to make what they design, the company's engineers have found that the optimum shape resembles a fish gill. |
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It is probable that gill nets are responsible for all, or at least the majority of the bycatch of porpoises in recreational beach fisheries. |
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These fish have spiracles which are located in front of the main gill opening on each side of the head. |
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Mr. gill joined coughlin in the early 1970s and was responsible for establishing the company's western canadian operations, based in Winnipeg. |
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Zinc readily binds to gill mucus and can cause a rapid influx of metal ions through the gill tissue resulting in a toxic response. |
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The well-equipped vessel was lost with a full suite of gear, including VHF, echo sounder, plotter, autopilot, gill and trammel nets and a complete toolset. |
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Experts say catfishes, a species of siluroid, can survive even in seriously contaminated water because its gill and skin both perform the respiratory function. |
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The most widely discussed, if highly controversial, theory is that candirus are attracted to urine streams, mistaking them for the gill streams of fish. |
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When overcrowding occurred in the water, some of these fish, using their fins as rudimentary feet, took to the land and changed from gill breathing to lung breathing. |
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A tot is a sixth, a fifth, a quarter or a third of a gill of whisky. |
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The spike-tailed paradise fish is a labyrinth fish, and like all such fishes they extract atmospheric oxygen with the help of a vessel-lined cavity above their gill arches. |
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Studies of intact animals, isolated gills, gill lamellae, and membrane vesicles have produced a variety of models of osmoregulatory ion transport in euryhaline crustaceans. |
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For example, fishermen from the east coast, with the help of the federal government, are modifying their gill nets to avoid unintentionally entangling right whales and leatherback turtles. |
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As they age and their gill rakers fully developed, menhaden shift their diet to primarily consume phytoplankton. |
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No significant effects of EE2 on glochidia mortality, conglutinate condition, female marsupial gill condition, or mussel foot extension were observed. |
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The plastron of a diving beetle is not directly a source of oxygen, but acts as a gill, acquiring oxygen from the surrounding water. |
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Each gill has an incoming blood vessel connected to the hemocoel and an outgoing one to the heart. |
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However the nets can also function as gill nets if fish are captured when their gills get stuck in the net. |
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In October 2011, 279,000 salmon died in Lamlash after what was said to be an outbreak of amoebic gill disease. |
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Antennules may also be more easily collected with less damage to the animal than collection of gill tissue. |
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From Greendale the gill can be followed almost to the tarn, before branching off up the grassy slopes of Seatallan. |
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In May 2008, the Department of Planning and Natural Resources announced that it would enforce a ban on fishermen using gill and trammel nets, as the nets were seen as contributing to overfishing. |
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Gillnets are strings of single, double or triple netting walls, vertical, near the surface, in midwater or on the bottom, in which fish will gill, entangle or enmesh. |
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This gill contains a considerable flow of water in its rocky gorge, but it often has only a dry bed by the time it gets down to valley level. |
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These cells may be producing a mucus substance that assists in entrapping food items that are then carried to the labial palps and mouth by ciliary action on other parts of the gill filaments. |
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The gill it led to is not named on any map, but some authors have referred to it as Mines Gill. |
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The shortest route of all follows the gill past the old lead mine, perhaps better used as a descent. |
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Helvellyn Mine or Wythburn Mine opened in 1839 by the gill between Whelpside and Helvellyn Screes. |
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The narrow leat which once diverted water from Brownrigg Well into the gill beside the mine may also be seen, much higher up the fellside. |
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Changes in gill adenosinetriphosphatase activity associated with parr-smolt transformation in steelhead trout, coho, and spring chinook salmon. |
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Getting to the ceremony proved another huge challenge for gill. |
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The lateral pockets of the pharyngeal cavity, called the pharyngeal pouches, perforate the mesodermal layer, reach the ectoderm, and break through to form pharyngeal, or gill, clefts. |
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Since the inner ear and nerves of equilibrium and hearing come from the otic vesicle, separate from the gill structure, in most cases of deformed or absent outer ear the hearing nerve is normal. |
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The counts of gill rakers and teeth were facilitated by clearing and staining with alizarin red. |
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They can grow up to 6 feet in length, have large heads, gill slits and wide mouths. |
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The Pirana is a truly freaky mini-Jaws-looking lure with gaping mouth, teeth and gill slits where water and bubbles can exit. |
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In a nutshell, the provisions for the mackerel box stipulate that there shall be no directed fishery for mackerel in the area, with the exception of vessels fishing exclusively with gill nets or hand lines. |
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The basking shark has been the target of harpoon fishing from small boats, but it has also been taken in nets, including bottom gill nets and occasionally bottom and pelagic trawls. |
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The gill symbiont of the hydrothermal vent mussel Bathymodiolus thermophilus is a psychrophilic, chemoautotrophic, sulfur bacterium. |
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The abundance of common carp found after rotenone application was better represented from boat electrofishing sampling than gill nets. |
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He had one and a half years of experience in gill net fishing. |
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Pectoral fins and gill openings are also small. |
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Manta rays are under increasing threat from targeted fisheries driven by East Asian demand for their gill rakers for use in Chinese medicine. |
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An international team including Empa researcher Francis Schwarze has sequenced the genome of the common split gill mushroom, Schizophyllum commune, a widely distributed fungus which grows on and decomposes wood. |
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The work is richly illustrated with drawings of different bones, sensory lines, pharyngeal bones and gill rakers. |
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The only way to truly identify this species is to count gill rakers, lateral scale rows, and pectoral rays. |
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The commission should recommend that the maximum mesh size and hang-ratio of conventional gill nets be reformatted, which would permit larger sockeye to escape to spawning grounds. |
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This primitive arrangement of chondrocranium and gill arches forms the basis of the skull in all jawed vertebrates. |
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Government attempts to limit the gill netting of salmon by the Micmacs repeatedly failed. |
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Adnate mushroom gills are broadly attached to the stalk slightly above the bottom of the gill, with most of the gill fused to the stem. |
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A vivid black beauty mark with a reddish, crescent border flares out from the trailing edge of its gill cover. |
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Hook-and-line gear, gill nets, fyke nets, and otter trawls were used to capture fish. |
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Alvarez E, Sutton DA, Cano J, Fother gill AW, Stchigel A, Rinaldi MG, et al. |
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It shows that the pathogmonomic of the diseases caused by VNN was more visible in both hepar and gill tissue than other tissue. |
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In order to access the otoliths, the gill arches and flesh covering the parasphenoid bones were first removed. |
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But why should it have unmistakable gill slits unless its remote ancestors did respire with the aid of gills? |
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They're a type of parasitic catfish from Brazil that swim into the gill slits of larger fish to suck blood. |
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Occasionally, gill architectures were disrupted by heavy hemocyte infiltration. |
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Exposure of gill cells to algal extracts, brevetoxins and PST toxins was for 2 hrs, and to karlotoxin for 2, 3, 4 and 5 hrs. |
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These are good examples in Cumbria for this type of gill and are also biologically important due to their species richness. |
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In amphibians and some primitive bony fishes, the larvae bear external gills, branching off from the gill arches. |
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It has anatomical adaptations for filter feeding, such as a greatly enlarged mouth and highly developed gill rakers. |
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Its snout is conical and the gill slits extend around the top and bottom of its head. |
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They shed and renew their gill rakers in an ongoing process, rather than over one short period. |
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Various fishing methods, most notably purse seine fishing for tuna and the use of drift and gill nets, unintentionally kill many dolphins. |
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The main threat to porpoises is static fishing techniques such as gill and tangle nets. |
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Cod have a distinct white lateral line running from the gill slit above the pectoral fin, to the base of the caudal or tail fin. |
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Biologists distinguish these two groups based on differences in their gill structures. |
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The gill structure is lamellar in carideans but branching in dendrobranchiates. |
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Batoid gill slits lie under the pectoral fins on the underside, whereas a shark's are on the sides of the head. |
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It is able to dart forward to grab its prey by expelling water forcibly through its gill openings. |
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Filter feeding fish usually use long fine gill rakers to strain small organisms from the water column. |
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Mesopelagic plankton feeders have small mouths with fine gill rakers, while the piscivores have larger mouths and coarser gill rakers. |
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Like their Atlantic counterpart, Gulf menhaden have a prominent black spot found behind the gill cover followed by a row of smaller spots. |
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One People for the Ethical Treatment of Animals staffer went out on a commercial gill netter, and she watched as fish after fish was violently extracted from the net. |
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By inserting the OIT into the exhalant chamber, the distal margin of the gill and the abfrontal surface of the filaments of 7 snails were also observed. |
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Here the saints' self-sacrifice performs as the remissive gill. |
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Lesions present in control shrimp were limited to gill crusting, melanosis, and hypercellularity, whereas Cd-treated PLs exhibited lesions of the gills and other sites. |
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Fish collected by gill net, and epibenthic and modified epibenthic sleds were processed in the field to remove approximately 10 g of dorsal epaxial white muscle tissue. |
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The basking shark is a ram feeder, filtering zooplankton, very small fish, and invertebrates from the water with its gill rakers by swimming forwards with their mouths open. |
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Although GAAP does not allow businesses to generally derecognize liabilities until the liability has been relieved, there is a special exception dealing with gill cards. |
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Another well-supported monophyletic grouping within the larger mollusk mite branch is one that is formed by African and Laurasian gill mites along with the mantle mites. |
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This is problematic for some organisms with pervious skins or with gill membranes, whose cell membranes may burst if excess water is not excreted. |
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In some aquatic insects, the tracheae exchange gas through the body wall directly, in the form of a gill, or function essentially as normal, via a plastron. |
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The junction between the head and body is indistinct because there are no gill slits, the gills opening as pores near the base of the pectoral fins. |
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It is unknown why porpoises become entangled in gill nets, since several studies indicate they are able to detect these nets using their echolocation. |
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Owing to the peculiar shape of the pompano and the relatively large mesh in the pompano gill nets, the fish are not caught by being actually gilled. |
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Some fish, like sharks and lampreys, possess multiple gill openings. |
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The locations in which the gill lice attached to the host fish varied, but the majority were found attached to gills, branchial rims, and opercula. |
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Changes in electrophoretic profiles of gill mucus proteases of the Eastern oyster Crassostrea virginica in response to infection by the turbelhtrian Urastoma cyprine. |
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Each gill is supported by a cartilagenous or bony gill arch. |
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A popper would glug, glug, glug as it pushed water out of its path on the retrieve and then erupt in a splash of teeth and gill rakers flaring like a bad monster movie. |
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One was wholly debranchiate, the other had but one gill plume remaining. |
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It has frontoparietal stripes on the top of its head, a faint golden midlateral line, and a distinctive black spot on the hind border of the gill cover. |
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Most molluscs have only one pair of gills, or even only one gill. |
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In the nineteenth century a leat was constructed to direct the water of this spring into the gill to its north to serve the needs of the Helvellyn Mine further down. |
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Rays are distinguished by their flattened bodies, enlarged pectoral fins that are fused to the head, and gill slits that are placed on their ventral surfaces. |
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