ʻO ka ʻōpae ʻĀkau ʻĀkau (Pandalus borealis) no ka papa crustacean. ʻO ia kahi ʻano aneto o ka wai anuanu i waiwai nui i ka ʻoihana.
ʻO ka wahi noho o ka ʻōpae poni ʻākau.
Noho ka ʻōpae ʻĀkau ʻĀkau i ka hohonu mai 20 a 1330 mau mika. Noho lākou ma nā lepo palupalu a silty, i ka wai kai me nā mahana mai 0 ° C a +14 ° C a me ka paʻakai o 33-34. Ma kahi hohonu o ʻekolu haneli mau mika, hana ʻia nā ʻōpala.
E hohola i ka ʻōpae māka ʻākau.
Māhele ʻia ka ʻōpae ʻĀkau ʻĀkau i ka Moana ʻAkelanika mai ke kapakai o New England, Kanada, ke kapakai hikina (mai Newfoundland a me Labrador) a i Southland a me East Greenland, ʻIlia. Noho lākou i ka wai o Svalbard a me Nolewai. Loaʻa ma ke Kai ʻĀkau a hiki i ke Alanui ʻEnelani. Ua pālahalaha lākou i loko o ka wai o Iapana, i ke kai o Okhotsk, ma waena o ke kaha ʻo Bering St a hiki i ka hema o ʻAkau ʻAmelika. Ma ka Pākīpika ʻĀkau, loaʻa lākou i ke kai ʻo Bering.
Nā hōʻailona kūwaho o ka ʻākala ʻākala ʻākau.
Ua hoʻomaʻamaʻa ka ʻōpae ʻĀkau ʻĀkau i ka ʻauʻau ʻana i ke kolamu wai. He kino lōʻihi kona, kaomi ʻia ma nā ʻaoʻao, nona nā ʻāpana ʻelua - ka cephalothorax a me ka ʻōpū. Lōʻihi ka cephalothorax, ʻaneʻane like me ka lōʻihi o ka lōʻihi o ke kino. Aia kekahi o nā maka i loko o nā kaumaha o ke kaʻina ihu elongated. Kūpilikiʻi nā maka a paʻa i nā helehelena maʻalahi, ka nui o ia mau mea e hoʻonui i ka ulu ʻana o ka ʻōpae. ʻO ka ʻike a Shrimp he mosaic ia, me ke kiʻi o kahi mea i haku ʻia o nā kiʻi he nui i ʻike ʻia ma kēlā me kēia ʻaoʻao kaʻawale. ʻAʻole maopopo a maopopo ʻole ia ʻano hihiʻo o ke ao holoʻokoʻa.
ʻO ka iwi chitinous shell kahi pale pono no nā gills; ma ka lalo e lahilahi.
He ʻelua pālua lālā o ka ʻōpae māka ʻĀkau. ʻOkoʻa kā lākou mau hana: antennae nā mea ʻāpilikia o ka hoʻopā. ʻIndlau nā Mandibles i ka meaʻai, paʻa nā ʻāʻī i ka pio. Hoʻololi ʻia nā lālā lōʻihi, i mākaukau ʻia me nā māiʻuʻu liʻiliʻi, e hoʻomaʻemaʻe i ke kino a me nā gills mai ka hoʻohaumia ʻana me nā waihona silt. Hana ke koena o nā lālā i kahi hana kaʻa, ʻo lākou ka lōʻihi a me ka mana. Kōkua ka wāwae o ka ʻōpū i ka ʻauʻau ʻana, akā i kekahi mau ʻōpala ua lilo lākou i kino kope (i nā kāne), i nā wahine lawelawe lākou i ka lawe hua.
Nā hana pilikino o nā ʻōpala ʻākala ʻākau.
Hoʻopili mālie nā ʻōmaʻomaʻo ʻĀkau i ka wai i ko lākou mau lālā, ʻaʻole like ka neʻe ʻana me ka ʻauʻau ʻana. Lele wikiwiki nā crustacea weli me ke kōkua o ke kūlou ʻana o kahi pahu caudal ākea ākea. He pale nui kēia maneuver i nā hoʻouka kaua predator. Eia kekahi, lele i hope nā ʻōpae i hope wale, no laila maʻalahi ka hopu ʻana iā lākou inā ʻoe e lawe mai i ka ʻupena ma hope, a hoʻāʻo e hopu iā ia mai mua. I kēia hihia, lele ka shrimp i ka ʻupena nona iho me ka hōʻino ʻole i ke kino.
ʻO ka hana hou ʻana i ka ʻōpae māka ʻākau.
ʻO ka ʻōpala ʻĀkau ʻĀkau nā meaola dioecious. He hermaphrodites protrandric lākou a hoʻololi i ka moekolohe ma kahi o ʻehā mau makahiki. Ma hope o ka pau ʻana o ka ulu ʻana o ka larval, ke 1.5 mau makahiki nā ʻōpae, he kāne kāne lākou. A laila aia kahi hoʻololi i ka moekolohe a me ka ʻōiwi e hānau ma ke ʻano he wahine. Hoʻopili lākou i nā hua i kau ʻia i nā wāwae o ka ʻōpū ma ka ʻōpū.
ʻO ka hoʻomohala ʻana i ka ʻōpae poni ʻākau a kū pololei a i ʻole me ka hoʻololi ʻana, i kēia hihia e puka mai ka larva.
Kapa ʻia ka ʻano larval mua ʻo nauplius; ʻike ʻia lākou e ke kū ʻana o ʻekolu mau hui a me hoʻokahi maka i hana ʻia e ʻekolu mau lobes. ʻO ka lua o ka ʻano - he huelo ko ka protozoa a ʻelua mau kaʻina (like kekahi me ka nuku, ʻo ka lua ma ke ʻano o kahi kākalaioa). Me ka hoʻomohala pololei, kū koke kahi crustacean liʻiliʻi mai ka hua manu. Hāpai nā wahine i nā keiki no 4-10 mau mahina. ʻAʻau ka larvae no kekahi manawa ma kahi hohonu pāpaʻu. Ma hope o 1-2 mau mahina hāʻule lākou i lalo, he ʻōpiopio liʻiliʻi lākou, a ulu koke. Kū ʻo Molt i nā manawa i ka crustaceans. I loko o kēia wā, pani ʻia ka uhi chitinous paʻakikī e kahi pale pale palupalu, kahi e hohola maʻalahi ai ma hope koke o ka hoʻoheheʻe ʻana.
A laila paʻakikī ia a pale i ke kino palupalu o ka ʻōpae. I ka ulu ʻana o ka crustacean, e liʻiliʻi a liʻiliʻi ka pūpū, a loli hou ka uhi chitinous. I ka wā hoʻoheheʻe, lilo nā ʻōpala ʻākala ʻākau i mea maʻalahi loa a lilo i mea pio no nā meaola kai. Noho nā ʻōpae ʻĀkau ʻĀkau i ke kai no kahi o 8 mau makahiki, a hiki i ke kino o 12.0 -16.5 cm.
E hanai ana i ka ula ʻula.
ʻAi ʻia ka ʻōpae māka ʻĀkau i ka detritus, nā mea kanu wai make, nā ilo, nā ʻelala, a me daphnia. ʻAi lākou i nā kupapaʻu o nā holoholona make. Hōʻiliʻili pinepine lākou i nā pūʻulu nui ma kahi kokoke i nā ʻupena lawaiʻa a ʻai i nā iʻa i hoʻopaʻa ʻia i loko o nā keena o ka ʻupena.
ʻO ka waiwai kālepa o ka ʻōpae poni ʻākau.
Ua lawaiʻa ʻia ka ʻōpae māka ʻĀkau i nā nui he nui, me nā paʻa makahiki o kekahi mau miliona tona. Lawe ʻia ka lawaiʻa ikaika i loko o ka wai o ke kai Barents. Aia nā wahi kalepa nui o ka ʻōpae i nā wahi ma ka ʻākau hikina o ka mokupuni ʻo Victoria.
ʻO nā waihona o nā crustacea i ke Kai Barents ma kahi o 400-500 tausani mau tona.
Ua lawaiʻa ʻia hoʻi ka ʻōpae ʻĀkau ʻĀkau ma ke kai komohana o ʻAkelanika a me ʻAkelanika ʻĀkau, me nā wahi lawaiʻa nui e kokoke ana i Greenland a i kēia manawa e kiʻi ʻia nei ma ka hema loa o ke awāwa ʻo St. Lawrence, Gulf of Fundy a me Gulf of Maine. Aia ka lawaiʻa ikaika ma ka moku ʻo Iceland a ma waho o ke kapakai ʻo Norewai. ʻO 80 a 90% mau iʻa i hopu ʻia ma ka ʻaoʻao komohana o Kamchatka, ke kai ʻo Bering a me ke Kai Kūʻono ʻo Alaska. Lawaiʻa kēia ʻano ʻōpae ma Kōlea, USA, Kanada.
Hoʻoweliweli i ka ʻĀlani Pink Shrimp.
ʻO ka lawaiʻa ʻōmaʻomaʻo ʻākau ākea e pono i kahi hoʻonohonoho honua. I kēia mau lā, ua emi ka hopu ʻana o ka ʻōpae i 5 mau manawa. Hoʻohui ʻia, ʻo nā hihia o ka nui o ka hopu ʻana o ke cod ʻōpio i lilo pinepine i ka wā o ka lawaiʻa.
I kēia manawa, lawaiʻa nā moku Lūkini a me Norewai i ka moku Spitsbergen ma lalo o kahi laikini kūikawā e hoʻoponopono ana i ka helu o nā lā kūpono a me ka nui o nā moku.
Eia kekahi, ʻo ka nui o ka nui o ka hei o 35 mm. I mea e kaupalena ai i ka hopu, ka pani ʻana o nā wahi lawaiʻa kahi e loaʻa ai ka haddock, cod, black halibut ʻeleʻele a me redfish.
Mālama mau ʻia ka lawaiʻa ʻōpae i ka wahi hoʻomalu lawaiʻa ma kahi o Svalbard, ke kū aʻe nā hopohopo e hoʻopau ʻia paha ka waihona o ka ʻalani ākea. Hāʻawi ʻia kēlā me kēia ʻāina i kekahi mau lā lawaiʻa. Ua hoʻemi ʻia ka nui o nā lā i hala i ka lawaiʻa ʻana e 30%.
