摘要：Research aim is to analyse any social changes and dynamic of space capacity and critical point of social structure in coastal ecosystem. The main factor of structural change is external factor of structural formation (individu,system),or increase of community access to the change of local social environment,and external social environment. Dynamics of space capacity of social structure in coastal ecosystem of Karanggongso during periode of research can be explained through the two indicators, objective and subjective. There are a general critical point and a special critical point. This results explain that a evolution theory suggest a high possibility to be synthesized with any other theories,e.g. a conflict theory,an equilibrium theory,and a “timbul-tenggelam” theory. The synthesis process is an operational stage in a schematic mapping of theories by Appelbaum. Dynamics of social structure must be known bt any goverment and NGO,which have any development plans in the fisherman community. social change,space capacity,critical point,coastal ecosystem..
其他摘要：Tujuan penelitian ini adalah menganalisis perubahan sosial masyarakat dan dinamika kapasitas ruang dan titik kritis struktur sosial dalam ekosistem pesisir. Penyebab utama perubahan struktur adalah masuknya unsur-unsur pembentuk struktur dari luar (indivi
