The Life Cycle of A Blue Crab in Florida | 水產百科網
Thebluecrabstartsherlifeasalarva,anearly-lifestagethatlookscompletelydifferentthanheradultform.Shewillspend31-49daysgoingthroughsevenlarval ...
Overgeous (egg-bearing) female blue crabThe female can retain sperm for a year or more before extruding eggs. This allows crabs mating in fall or winter to wait until warmer weather to hatch their eggs. Eggs are fertilized as they pass out of the crabs body and are deposited under the apron. The apron is actually the curled-under abdomen, and has small appendages[1] to which the eggs attach. Egg masses have an average of two million eggs, and can have up to eight million eggs. At first the egg mass appears orange due to the high amount of yolk in each egg, then turns brown as yolk is consumed and eyes develop. After one to two weeks the eggs hatch into zoea larvae.
Thus the cycle of life is complete. Only one out of every one million (0.0001%) eggs survives to become an adult. Predators, adverse environmental conditions, and disease all take their toll on the millio...
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【遠海梭子蟹Portuns pelagicus】梭子蟹科 (Portunidae)
水產分類:澎湖的蟹類中文名稱:遠海梭子蟹學名:Portunspelagicus科別名稱:梭子蟹科(Portunidae)命名學者:(Linnaeus1766)
【凶狠圓軸蟹Cardisoma carnifex】地蟹科 (Gecarcinidae)
水產分類:澎湖的蟹類中文名稱:凶狠圓軸蟹學名:Cardisomacarnifex科別名稱:地蟹科(Gecarcinidae)命名學者:(Herbst1794)
【短指和尚蟹Mictyris brevidactylus】和尚蟹科 (Mictyridae)
水產分類:澎湖的蟹類中文名稱:短指和尚蟹學名:Mictyrisbrevidactylus科別名稱:和尚蟹科(Mictyridae)命名學者:Stimpson1858
【銅鑄熟若蟹Zosimus aeneus】扇蟹科 (Xanthidae)
水產分類:澎湖的蟹類中文名稱:銅鑄熟若蟹學名:Zosimusaeneus科別名稱:扇蟹科(Xanthidae)命名學者:(Linnaeus1758)
【漢氏梭子蟹Portunus haanii】梭子蟹科 (Portunidae)
水產分類:澎湖的蟹類中文名稱:漢氏梭子蟹學名:Portunushaanii科別名稱:梭子蟹科(Portunidae)命名學者:Stimpson1858
【雙齒近相手蟹Perisesarma bidens】方蟹科 (Grapsidae)
水產分類:澎湖的蟹類中文名稱:雙齒近相手蟹學名:Perisesarmabidens科別名稱:方蟹科(Grapsidae)命名學者:(DeHaan1835)
【繡斑蟳Charybdis feriatus】梭子蟹科 (Portunidae)
水產分類:澎湖的蟹類中文名稱:繡斑蟳學名:Charybdisferiatus科別名稱:梭子蟹科(Portunidae)命名學者:(Linnaeus1758)
【青鋸蟹Scylla serrata】蟹 (Portunidae)
水產分類:澎湖的蟹類中文名稱:青鋸蟹學名:Scyllaserrata科別名稱:蟹(Portunidae)命名學者:(Forsskal)
【蛙型蟹Ranina ranina】蛙蟹科 (Raninidae)
水產分類:澎湖的蟹類中文名稱:蛙型蟹學名:Raninaranina科別名稱:蛙蟹科(Raninidae)命名學者:(Linnaeus1758)
【毛足圓軸蟹Discoplax hirtipes】地蟹科 (Gecarcinidae)
水產分類:澎湖的蟹類中文名稱:毛足圓軸蟹學名:Discoplaxhirtipes科別名稱:地蟹科(Gecarcinidae)命名學者:(Dana1852)
【欖綠青蟳Scylla olivacea】梭子蟹科 (Portunidae)
水產分類:澎湖的蟹類中文名稱:欖綠青蟳學名:Scyllaolivacea科別名稱:梭子蟹科(Portunidae)命名學者:(Herbst1796)
【鋸緣青蟳Scylla serrata】梭子蟹科 (Portunidae)
水產分類:澎湖的蟹類中文名稱:鋸緣青蟳學名:Scyllaserrata科別名稱:梭子蟹科(Portunidae)命名學者:(Forskal1755)
【毛掌梯形蟹Trapezia cymodoce】梯形蟹科 (Trapeziidae)
水產分類:澎湖的蟹類中文名稱:毛掌梯形蟹學名:Trapeziacymodoce科別名稱:梯形蟹科(Trapeziidae)命名學者:(Herbst1799)
【饅頭蟹Calappa calappa】饅頭蟹科 (Calappidae)
水產分類:澎湖的蟹類中文名稱:饅頭蟹學名:Calappacalappa科別名稱:饅頭蟹科(Calappidae)命名學者:(Linnaeus1758)
【真綿蟹Dromidiopsis dormia】綿蟹科 (Dromiidae)
水產分類:澎湖的蟹類中文名稱:真綿蟹學名:Dromidiopsisdormia科別名稱:綿蟹科(Dromiidae)命名學者:(Linnaeus1763)