
	Where results make sense

Topic: Second dorsal fin

Related Topics

dorsal fin

dorsal stream

dorsal root ganglion

lateral dorsal nucleus

dorsal respiratory group

dorsal tegmental area

dorsal root

dorsal interossei muscles

Dorsal Metacarpal Arteries

dorsal artery

dorsal striatum

Second dorsal fin

In the News (Mon 30 Nov 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Distribution of sharks: Texas Gulf of Mexico, Texas, Flowergardens and Caribbean - Class Chondrichthyes - Skates, Rays ...
		Second dorsal fin is much smaller than first one and is of similar height as the anal fin that is opposite to it.
		Second dorsal fin is small and low (height about 1.7 to 2.1% of total body length) with origin over or slightly posterior to origin of anal fin.
		Second dorsal fin with a short rear tip and its origin is over or slightly anterior to the anal fin's origin.
	www.exploreuw.com /fish_info_01_chondrichthyes.html (4762 words)

	Bluefinclub.com
		The body of the bluefin is deepest near the insertion of the pelvic fins, and tapers significantly to the caudal peduncle.
		The second dorsal fin is taller than the first, and is followed by 7 to 10 finlets.
		The first dorsal fin is yellow or blue, the second is red or brown.
	www.bluefinclub.com /biology.html (257 words)

	Striped bonito
		But they are much stouter-bodied than mackerel or chub mackerel, and their second dorsal fin originates close to the rear end of the first dorsal, instead of being separated from the latter by a long interspace.
		The first dorsal fin (about 15 spines) is not only much longer, relatively, than that of the mackerel, but its upper edge is abruptly concave behind the second spine, with the last 9 or 10 spines much shorter.
		The second dorsal is triangular, with concave rear edge; almost the whole of it stands in front of the anal; the anal is as large as the second dorsal and of about the same shape.
	octopus.gma.org /fogm/Euthynnus_pelamis.htm (554 words)

	Bioline International Official Site (site up-dated regularly)
		Second dorsal fin with 10 segmented rays; papillae row 5i absent; row 6i with 10 papillae; row os with 10-12 papillae.
		Dorsal fins dark to fl with 2-4 horizontal light stripes; margins of dorsal and anal fins white, remaining fins dark to colourless.
		Horizontal rows of dark dots on dorsal fin; in dark fish (mostly males) the dorsal fins are dark with white upper margins.
	www.bioline.org.br /request?fs96001 (6053 words)

	SDNHM Shark Structure
		The unpaired first dorsal fin, along with the smaller second dorsal and anal fins, keeps the shark's body stable as it swims through the water.
		Second dorsal fin -- The unpaired second dorsal fin assists in thrust as the shark swims, and helps stabilize it, preventing it from rolling from side to side as it swims.
		Caudal fin -- The caudal fin is the tail fin.
	www.sdnhm.org /kids/sharks/anatomy.html (740 words)

	[No title]
		Second dorsal fin originating ahead of the level of the vent, not connected to caudal fin.
		Second (last) dorsal fin originating ahead of the level of the vent, containing 69 to 83 rays.
		Dorsally grey to brown, shading to white ventrally; posterior region of vertical fins dark with pale margins.
	www.cfsan.fda.gov /~frf/gatable.html (3556 words)

	Blue marlin
		Futhermore, the second dorsal fin and the second anal fin of the marlin are relatively larger, and the pectorals smaller than those of the swordfish, while there are two small longitudinal keels on either side of its caudal peduncle instead of one broad one; its body is more slender; and its head is relatively shorter.
		The first dorsal fin, with 47 to 48 stiff rays is separated from the second dorsal by a space about as long as the latter in one fish seen by us; by a shorter space in another.
		The short second anal is similar to the second dorsal fin and originates a little in front of the latter.
	www.gma.org /fogm/Makaira_ampla.htm (1108 words)

	Sculpin Patterns Feature - Information
		The small pelvic fins are situated beneath the pectoral fins and have one hidden spine in the flesh followed by 3 -4 soft rays.
		The chin is uniformly pigmented and not mottled.
		The dorsal fin of the mottled sculpin is pigmented with a spot fore and aft, which becomes continuous in breeding males to form a dark band with a broad orange distal edge.
	globalflyfisher.com /streamers/fish/muddler/sculpininfo.htm (2394 words)

	KEY TO GENERA OCCURRING IN THE AREA:
		The majority of gobies have the pelvic fins united to form a ventral disc; those gobies whose pelvic fins are not united are typically found in coral reef areas.
		The terminal ray of the second dorsal and anal fins is divided to its base (but only counted as a single element.) The head is often scaled, scales being either cycloid or ctenoid.
		Dorsal and anal fins connected to caudal fin, both dorsal fins united by membrane; mud-burrowing, elongate gobies with pink to purple skin...................................................................................................................
	gobiidae.com /FAO_WA_gobies.htm (4544 words)

	Scombe_regali
		The spinous portion of the dorsal fin is separated from the soft rays by a deep notch.
		The first dorsal fin is fl in the anterior third, and white posteriorly.
		It has been hypothesized that the finlets on the posterior dorsal and ventral surfaces of scombrids aid locomotion, and may, in fact, be accessory locomotor structures that act to deflect water longitudinally to the area of the keels, where flow is then accelerated (Walters 1962).
	www.sms.si.edu /irlspec/Scombe_regali.htm (1004 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		Males with forntal tenaculum upturned distally with spines along dorsal upturned edge, prepelvic tenacula with lateral fold of tissue, bearing spines along medial edge and on lateral surface, and pelvic claspers with pale fleshy distal lobes, divided distally for 1/3 their length, tips usually extending beyond distal edge of pelvic fins.
		Dorsal surface of the tenaculum upturned distally with denticles extending onto the dorsal surface along the upturned edge.
		Hydrolagus trolli also differs from H. pallidus in having pelvic clapsers that reach beyond the distal margin of the pelvic fins, a frontal tenaculum that is upturned and its distal edge not flat, first dorsal fin with pale margin rather than the darker margin observed in some specimens of H. pallidus.
	www.acnatsci.org /press/special/DidierandSeretfinal.doc (2525 words)

	Fishing bait
		The dorsal fin is marked by several oblique, white spots arranged into stripes, and there is a large dark spot on the last dorsal spine.
		The existence of a spine in the second dorsal fin, the absence of head markings, and the lack of an interspace between the dorsal fins distinguish the bluefish from the similar looking greater amberack (Seriola dumerili).
		The second dorsal fin is long and consists of one spine and 23-28 soft rays.
	www.macsbait.com /bait.html (2625 words)

	Group 1 - Sharks and Rays
		Gill slits anterior to origin of pectoral fins; second dorsal fin nearly as large as the first; teeth long, narrow, smooth and protrude from the mouth.
		Skin silky, leading edge of first dorsal fin curved, second dorsal fin and anal fin with long posterior tip, serrated triangular teeth more strongly serrated at base becoming more oblique toward the corners of the mouth.
		Snout very short and broad, dorsal fin high and triangular, pectoral fins as long as distance from pectoral fin origin to tip of snout, upper teeth triangular and heavily serrated, lower teeth narrower and finely serrated.
	www.graysreef.nos.noaa.gov /fishguide/Group1/Group1.html (757 words)

	Bioline International Official Site (site up-dated regularly)
		The species characters used for identification are the number of joined pectoral-fin rays and second dorsal-rays, colouration of the pectoral fin and first dorsal fin, breast squamation, and number of gill rakers and a few other meristic and morphometric features.
		The first, spine-like element of the anal fin and the first element of the second dorsal fin (which may appear spinelike) are recorded as soft rays.
		Pectoral fin with gray pigment on membranes; rays pale, except for an intense fl area on ventral 3 rays, bordered dorsally with 3 to 5 white, irregularly shaped streaks.
	www.bioline.org.br /request?sm03002 (8362 words)

	Bigeye Tuna Photos and Fish Species Information
		Its anal and second dorsal fin are pale yellow, and the finlets are bright yellow, edged in fl.
		The Bigeye Tuna's anal fin is wider and shorter than the Yellowfin Tuna's, and it is colored all silver, with a fringe of yellow and 11 to 15 rays.
		The pectoral fin of a Bigeye Tuna will not cover this extension of scales, while on a Yellowfin Tuna these scales extend barely as far as the second dorsal fin and the pectoral fin will completely cover these scales.
	www.mexfish.com /fish/beyetuna/beyetuna.htm (1062 words)

	Mass. Division of Marine Fisheries: Yellofin Tuna - Species Profile
		The yellowfin pectoral fin reaches the beginning of the second dorsal fin.
		The albacore pectoral fin always goes beyond the start of the second dorsal and the bluefin pectoral fin never reaches the second dorsal fin.
		The combination of color and pectoral fin size should suffice in most cases, although in small yellowfin, a combination of the above and gill raker counts (27-33) and presence of a smooth liver may be needed for a positive identification.
	www.mass.gov /dfwele/dmf/recreationalfishing/yellowfin.htm (1997 words)

	FIGIS - FAO/SIDP Species Identification Sheet: Heterodontus galeatus
		Second dorsal-fin origin well in front of pelvic-fin rear tips, second dorsal fin somewhat falcate or angular and nearly as large as first dorsal fin.
		Anal fin subangular or rounded to weakly falcate, apex reaching lower caudal-fin origin when laid back; anal-caudal space between 1 and 2 times anal-fin base.
		Egg cases with flat thin spiral flanges that are diagonal to case axis and a pair of long, slender tendrils on case apex, flanges with 6 or 7 turns.
	www.fao.org /figis/servlet/species?fid=12656 (587 words)

	Sliteye shark (Loxodon macrorhinus)
		First dorsal fin erect with origin behind the rear tips of the pectoral fins.
		Second dorsal fin is much smaller than the first one with origin approximately over the insertion (end) of the anal fin.
		Pectoral fins relatively broad and triangular, slightly falcate, with origin under the interspace between third and fourth gill slits.
	www.shark.ch /Database/Search/species.html?sh_id=1095 (194 words)

	Scombe_cavall
		Two dorsal fins are present, separated by a deep notch between them.
		A series of 7 - 10 finlets (usually 10) lie posterior to the second dorsal fin and to the anal fin on the ventral surface (Collette and Nauen 1983).
		It is easily distinguished from these by its unique lateral line, which curves sharply downward towards the abdomen at the second dorsal fin.
	www.sms.si.edu /irlspec/Scombe_cavall.htm (1997 words)

	NOVA Online \| Island of the Sharks \| Orectolobiformes
		The anal fin is partly in front of the second dorsal fin and well ahead of the short caudal fin.
		The anal fin is formed as a low rounded keel well behind the second dorsal fin and just in front of the short caudal fin.
		The anal fin is slightly behind the second dorsal fin and just in front of the short caudal fin.
	www.pbs.org /wgbh/nova/sharks/world/orectolobiformes.html (946 words)

	Lesser amberjack - Discover The Outdoors (Site not responding. Last check: 2007-10-31)
		The larger second dorsal fin, which is not connected to the first, has one spine and 30 to 32 rays.
		The second dorsal fin and smaller anal fin have similar shapes, with the front ends extending to a peak.
		In the lesser, the stripe extending from the eye doesn’t reach the dorsal fin; in the greater, it does.
	www.dto.com /swfishing/species/speciesnostate.jsp?speciesid=453 (647 words)

	Triplefin Identification Article (Site not responding. Last check: 2007-10-31)
		All triplefin species have three dorsal fins and are all less than 1½ inches long.
		On the Lofty and Blackedge, the first dorsal fin is equal to or taller than the second dorsal fin.
		Supposedly, the first dorsal spine on the first dorsal fin is taller than the rest of the spines in that first dorsal fin.
	www.reef.org /member/forum/articles/triplefins.htm (649 words)

	Scomberomorus commerson (Site not responding. Last check: 2007-10-31)
		First dorsal fin lower than second dorsal fin.
		Second dorsal fin origin slightly in front of anal fin origin.
		Caudal fin forked (in small specimens) to lunate with two keels on its base and a median keel on caudal peduncle.
	www.ciesm.org /atlas/Scomberomoruscommerson.html (257 words)

	Atlantic spadefish - Discover The Outdoors (Site not responding. Last check: 2007-10-31)
		That, combined with the nearly identical second dorsal fin and anal fin, gives the fish a spade-like profile.
		They appear similar to, and are often confused with, angelfish but can be distinguished from the latter by the fact that Atlantic spadefish have two dorsal fins while angelfish have only one.
		This second dorsal fin and the anal fin’s anterior lobes are elongated and pointed.
	www.dto.com /swfishing/species/speciesnostate.jsp?speciesid=409 (499 words)

	Florida Museum of Natural History Ichthyology Department (Site not responding. Last check: 2007-10-31)
		6a) First dorsal spine over or posterior to inner corner of pectoral fin; midpoint of base of pelvic fin much nearer to origin of second dorsal fin than to rear base of first dorsal fin.........
		20b) Second dorsal fin large, free rear tip,shorter or equal to vertical height of fin; first dorsal broadly triangular, posterior margin nearly straight to slightly falcate; pelvic fin margin strongly falcate........................................................................
		36a) First dorsal fin high with nearly straight anterior margin and pointed tip, snout length about 3/4 or less of the fin height in all sizes; second dorsal fin somewhat larger, length of its free rear tip 1.3-1.7 times its height....................
	www.flmnh.ufl.edu /fish/education/sharkkey/sharkkeynew.htm (1629 words)

	[No title] (Site not responding. Last check: 2007-10-31)
		Gobies are a large family of bottom dwelling fishes having their pelvic fins uniquely modified into a tubular cup or disk.
		Anal fin is the same size as the second dorsal fin and in males contains a dark horizontal band.
		Anal fin is directly under and identical to the second dorsal fin.
	www.humboldt.edu /~raf1/fishbook/bony/b32.html (417 words)

	Sport Fishing - Mystery Tailer
		The problems: The tail is very tall, and there seems to be a small second dorsal fin about halfway between the first dorsal fin and the tail, which would rule out any of the billfishes.
		However, a marlin's second dorsal fin should be farther back, much nearer the tail than the dorsal fin.
		In this fish, the central position of the second dorsal fin is closer to that found in tunas, but the fins aren't the right size or shape for a tuna either.
	www.sportfishingmag.com /article.jsp?ID=21113 (414 words)

	Golden Weedfish, Cristiceps aurantiacus
		Note that the first dorsal fin originates in front of the supraorbital tentacle.
		The Golden Weedfish has a tall first dorsal fin that originates in front of both the eye and the supraorbital tentacle.
		The Crested Weedfish has a lower first dorsal fin that originates over the eye (not in front of it) and behind the supraorbital tentacle.
	www.amonline.net.au /fishes/fishfacts/fish/caurant.htm (253 words)

	About the Bluefin Tuna - WBA
		As a member fo the tuna family, the bluefin tuna has a sleek, rounded, streamlined body, tapering to a narrow junction with the tail.
		The pectoral fins fold into grooves on the body, and the eyes are flush with the body surface.
		They are distinguished from other fishes by a series of finlets behind the second dorsal fin and the anal fin.
	www.winterbluefin.org /winterbluefin.cfm (310 words)

	modified 16 Dec 94 Eleotrididae
		Six branchiostegal rays; pelvic fins separate and not connected by membrane.
		The second dorsal fin and the anal fin relatively short‑based; origin of anal fin just posterior to a vertical with origin of second dorsal fin; terminal ray of second-dorsal and anal fins divided to its base (but counted as a single element.) Head typically scaled, scales being either cycloid or ctenoid.
		Gobiidae: base of second dorsal much longer than distance from end of second dorsal fin to base of caudal fin; pelvic fins connected to form a disc in species from fresh and brackish water, separated only in species living on or around reefs.
	gobiidae.com /FAO_WA_Eleo.htm (490 words)

Try your search on: Qwika (all wikis)