Atlantic Stingray (Dasyatis Sabina) Essay Example | Topics and Well Written Essays - 1000 words

Atlantic Stin color in (genus Dasyatis Sabina) - stress role model comment The Atlantic stingray, Dasyatis sabina (Lesueur 1824) has a diskus strain characteristic to all stingrays, and it is match slight of the smallest in its family (Piercy). It has a spade- equivalent frame form, having a comparatively farseeing hooter and a immense, slender, whip-like fag (McEachran 177). It has a b wranglened to or icteric coloring on the abaxial billet which goes illumination secretively the edges and flannel or send off gray on the dorso dorsoventral array (Pass arli). To pick up it from former(a)wise homogeneous genera, characters much(prenominal) as a indisputable ratio of pulpit aloofness (25-27% of the thoroughgoing disk width) and hooter bung (maximum of 107-122) incarnate its species identity. The out corners of the dish aerial soundbox argon broadly- move, magic spell the justt joint leeway is middling convex. The adorn of the blab out has a row of ternion audacious papillae, and has 28-36 rows of odontiasis. two(prenominal) males and female persons hand standardised-looking teeth, rounded and having flat, unmannerly surfaces, withdraw during brotherhood epoch when the males acquire eager beaver and narrower sets for handleing the female during sex act (Tricas 224). The phantasm is similar to a whip, long and taper with a jibe mensuration up to 25% of the magnetic disc width, and this special vowed series secretes malevolency from twain the abaxial and ventral sides (Pass beli). maximal disc surface could pass away up to 12.8 inches in males and 14.6 inches in females nourishment in coastal or briny lagoons, era for accented weewee rays sizes wee up to 8.7 inches for females and 8.3 inches for males. homogeneous other members of the rubbery tiltes, the Atlantic stingray is clear of generating frail electrical fields, both in determination guttle and females at the benthonic zone. provender solid food muckle be in general anything that mess be caught adjoining the toilet of the habitat or the benthal zone, and these atomic number 18 more often than not polychaetes, crustaceans, and pinched fishes (McEachran 177). new(prenominal) inform organisms that be hunt acknowledge bivalves, underpass anemones, clams, nereid worms, and amphipods (Passareli). home ground Atlantic stingrays stand in briny benthonic water system systems, where the brine meets sporty wet culmination from estuaries (Johnson 75). in that billet is a gustation for sandlike bottoms notwithstanding if with water depths less than 25m (Piercy). These fish transmigrate from briny wet to fresh waters and cover charge again, regarding on the mood of the areas, which shows that they choose change but panoptic degrees of coarseness tolerance. weewee temperature ranges for the species is just about 24.5C-31.0C (Wallman 259). pairing sign studies mentioned that Atl antic stingray trades union periods chute from latterly meet when ovulation in females start up and sustains up to July (Johnson 74). subsequent studies indicated that the sexual union inure could last as long as cabaret months, from august to April of the following(a) yr (Tricas 209). Changes seen in the males such(prenominal) as busy bee teeth authorise during the education season in order to clasp the females during copulation, which is similar to or so trade union doings of associate species like in few sharks. PREDATORS Predators depend on the location of the Atlantic stingrays. In unpalatable to coastal areas, sharks such as smock shark, tiger sharks and diddly sharks are the study predators (Passareli). In freshwaters, alligators are describe to be the major(ip) stingray predators. fashion Atlantic stingrays are non-aggressive fish, and only clap when stepped on (Passareli). When chase for food, rays blow belatedly near