From the Bay and Back Again | 水產百科網
2016年3月20日—Atinyjuvenilecrabmeasuresjustonefifthofaninchfrompoint-to-pointwithclawscapableofpreyingonsmallfishandevenotherbabycrabs.
From the Bay and Back Again: The lifecycle of the blue crab March 20, 2016The blue crab[1] embodies a unique life experience for aquatic animals in the Chesapeake Bay.
Unlike finfish, this invertebrate has a hard exoskeleton and must molt, or shed, its shell in order to grow. As you can imagine, this process puts the crab in a vulnerable situation as it loses its protective hard shell and becomes a soft crab—a top menu item on many predators’ lists, including ours.
Before a crab can achieve this delectable point in its life, it must survive a gauntlet of challenges from the mouth of the Chesapeake Bay out into the Atlantic Ocean and back up the bay toward Maryland.
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【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
【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)
【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)