Biology 2601A/B Lecture 18: lobster and mussels regulation
4 Jan 2020
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Document Summary
American lobsters and blue mussels are crustaceans and they have different osmotic regulation machinery compared with other marine species. This lab focused on the effects of environmental salinities differences on both species" internal hemolymph osmolalities. Both species, blue mussel (mytilus edulis) and american lobster (homarus americanus) were acclimated separately under 25 or 35 ppt seawater for a week. Data were collected by measuring the vapor pressure of all liquid samples. The result indicated that both species" hemolymph-seawater values were significantly different between the two designed salinities, this result displayed that both the blue mussels and american lobsters were partial osmoregulators. The american lobster (homarus americanus) has significant commercial potential in the fishery in atlantic canada (dfo 2017). The lobster is found in a wide range in the north- Eastern american coast, from north carolina, us (35. 25 n) to labrador, canada (51. 73 n) (gro i. van der meeren et. al, 2016).
