Recorded captures of American lobster (Homarus Americanus) in Swedish waters and an observation of predation on the European lobster (Homarus Gammarus)

publishedVersio

Havbeite med hummer: Artsrapport

Program for Utvikling og Stimulering av Havbeite (PUSH)Program for Utvikling og Stimulering av Havbeite (PUSH) startet opp høsten 1990, og programfinansiert feltaktivitet ble avsluttet i 1997. Denne rapporten presenterer hummeraktivitetene i programmet. Ansvarlig for denne rapport er styringsgruppe for hummerforsøkene på Kvitsøy. Styringsgruppen har bestått av Fiskerisjefen i Rogaland som leder og med representanter fra Fiskeridirektoratet, Havforskningsinstituttet, Kvitsøy kommune og fiskarlaget.publishedVersio

Modelled dispersal of snow crab (Chionoecetes opilio) larvae and potential settlement areas in the western Barents Sea

Since the mid-1990s, a snow crab (Chionoecetes opilio) population has established in the eastern Barents Sea. Spawning females and newly hatched larvae are now also found in the central Barents Sea, warranting speculations on a further westward colonization by pelagic larvae. Here, we model the potential for larval dispersal and settlement into uncolonized areas in the western Barents Sea. We used a biophysical model of ocean currents and hydrography, coupled with a Lagrangian dispersal algorithm and larval survival functions as response to temperature. The model predicts limited dispersal from the central Barents Sea to western areas, primarily due to a mismatch between prevailing temperature regimes and temperature tolerances for the different larval stages. In addition, there was limited westward transport of water masses with temperatures that would allow completion of the pelagic larval development. We speculate that for larvae to successfully supply benthic recruits to the remaining uncolonized areas in the western Barents Sea, adult crabs would first need to establish new spawning aggregations, for example along the western slopes of the Barents Sea shelf. Immediate implications are limited potential for expanding the fishery to the western areas of the Barents Sea.publishedVersio

グンキモノガタリ ニオケル オンリョウ

担当教員: 久保勇(人文社会科学研究科)平成21年度(2009)教養コア科目授業C(芸術と文化)授業コード:G14C1510

ANALISIS PERILAKU ANTISOSIAL PADA KOMUNITAS PUNK DI KOTA BANDUNG

Di Kota Bandung sebagai salah satu kota besar di Indonesia, Punk tumbuh dan berkembang dengan cukup cepat dalam masyarakat. Macam-macam pemaknaan negatif sering dicapkan kepada para punker. Seperti bersikap antisosialdan melakukan perilaku-perilaku menyimpang yang meresahkan dan merugikan anggota masyarakat lain. Beberapa perilaku antisosial dan penyimpangan tercermin dari sikap mereka yang introvert, asosial, cenderung agresif, seringnya melakukan perilaku menyimpang, dan acuh terhadap nilai dan norma sosial. Penelitian ini bertujuan untuk mengetahui bagaimana gambaran perilaku, faktor penyebab, serta implikasi keberadaan mereka terhadap kehidupan masyarakat.Penelitian ini menggunakan metode studi kasus dengan pendekatan kualitatif. Menggunakan wawancara dan observasi sebagai alat pengumpul data. Perilaku antisosial sejatinya ditunjukan oleh para punker, hal ini ditunjukan oleh sikap dan perilaku yang tampak seperti cara berpenampilan seorang punkeryang sangat berbeda dibanding dengan masyarakat pada umumnya, pola perilaku keseharian yang tidak sesuai dengan nilai dan norma yang berlaku seperti sikap yang cenderung agresif, seringnya mengkonsumsi minuman beralkohol, terlibat perkelahian, penyalahgunaan obat-obatan dan acuh terhadap nilai dan norma yang berlaku di masyarakat.Faktor-faktor yang mempengaruhi munculnya perilaku penyimpangan dan sikap antisosial ini dilatar belakangi oleh kondisi keluarga Broken Home, lingkungan sosial individu yang bisa dengan mudah menemui perilaku menyimpang, teman sepermainan dan pendidikan yang rendah. Selain itu juga ada faktor-faktor lain yang mendukung munculnya perilaku tersebut seperti pengaruh media massa, keinginan diri untuk dipuji, pelampiasan rasa kecewa, faktor dorongan kebutuhan ekonomi, serta adanya ketidaksanggupan individu untuk menyerap norma-norma konformis.Keberadaan dari para punker ini berdampak pada kehidupan masyarakat baik secara langsung maupun tidak langsung. Dampak secara langsung tersebut diantaranya adalah adanya perasaan takut yang dirasakan oleh masyarakat akibat dari adanya beberapa perilaku mereka yang bisa dikategorikan mengancam, seperti seringnya bergerombol dalam jumlah banyak, mengamen dengan cara paksa, dan melakukan pemalakan. Implikasi lain yang muncul dari komunitas punk ini selain dirasakan secara langsung ada pula beberapa hal yang bersifat tidak langsung, diantaranya adalah dengan cara hidup mereka yang menjunjung tinggi kebebasan dan hidup seolah-olah tidak terikat oleh sistem norma yang berlaku dimasyarakat, para generasi tua memiliki semacam ketakutan bila hal tersebut akan berimplikasi terhadap ideologi pada generasi muda yang sejatinya masih dalam tahap pencarian jati diri kemudian terjerumus pada pola kehidupan yang mereka lihat dari komunitas Punk tersebut Kata Kunci : Punk, Antisosial, Perilaku Menyimpang Bandung as one of big cities in Indonesia . Punk has been growing and developing rapidly in society. punker often look as a bad behavior. Such as antisocial and do a deviate behavior that make another citizen feel uneasiness and suffer. Some antisocial and deviate behavior can reflected from their introvert, asocial, aggressive disposed, often do the deviate behavior, and ignoring about social value and norm. This research purposes are to knowing how the representation of behavior, causes factor, and their existence implication toward society. This research uses case study with qualitative approach. This research is using interview and observation as tools for collecting data. The antisocial behavior often represented by punkers. This thing represented by attitude and behavior that appear like clothing style which very different with another citizen. Behavior pattern in daily live that inappropriate with value and norm such as aggressive disposed, often consume alcohol, affray, drugs abuse and ignoring about social value and norm in society, the influence factors of deviate and antisocial behavior are caused by broken home family, social individual environment that could be easy faced deviate behavior, friends and lower education. Besides of that there are other factors which supporting deviate behavior such as mass media influence, feel to be praised, impingement of disappointed, economical needed factor, and individual disability to pervade conformist norm . The existence of punkers give directly and indirectly impact to society live. . Directly impact there are: society feel afraid to the punkers because some of their attitude are threat categorized such as they are often look in group in a large number . Busking forcedly, asking some money with threat. Another implication that arise from this punk community also felt indirectly there are with their lifestyle that hold in the high esteem of freedom and their live unbounded by norm in society, old generations feel afraid if that thing will implicating toward young generations’ ideology that they are still in stage where they are looking for who really they are then fall into live pattern that they see from punk community. Keywords: Punk, Antisocial, Deviatio

Effect of sea lice chemotherapeutant hydrogen peroxide on the photosynthetic characteristics and bleaching of the coralline alga Lithothamnion soriferum

The proliferation of sea lice (Lepeophtheirus salmonis) represents a major challenge for the salmonid aquaculture industry in Norway. Hydrogen peroxide (H2O2) is a chemotherapeutant frequently used on Norwegian farms, however, its toxicity to non-target benthic species and habitats remains poorly understood. Maerl beds are constructed by the accumulation of non-geniculate coralline algae and provide important ecological functions. Due to the rapid expansion of aquaculture in Norway and the continued use of H2O2 as an anti-sea lice treatment, it is crucial to understand the impact of H2O2 on the physiology of maerl-forming species. The effects of a 1 h exposure to H2O2 on the photophysiology and bleaching of the coralline alga Lithothamnion soriferum were examined here through a controlled time-course experiment. PAM fluorimetry measurements showed that H2O2 concentrations ≥ 200 mg l−1 negatively affected photosystem II (PSII) in thalli immediately after exposure, which was observed through a significant decline in maximum photochemical efficiency (Fv/Fm) and relative electron transport rate (rETR). The negative effects on PSII induced by oxidative stress, however, appear to be reversible, and full recovery of photosynthetic characteristics was observed 48 h to 28 days after exposure to 200 mg H2O2 l−1 and 2000 mg H2O2 l−1, respectively. At 28 days after exposure, there was evidence of two- to four-times more bleaching in thalli treated with concentrations ≥ 200 mg H2O2 l−1 compared to those in the control. This indicates that despite the recovery of PSII, persistent damages can occur on the structural integrity of thalli, which may considerably increase the vulnerability of coralline algae to further exposure to H2O2 and other chemical effluents from salmonid farms.publishedVersio

Kartlegging av fremmede marine arter i Rogaland

The method Rapid Coastal Survey was applied in 36 marinas in the county of Rogaland during five days in august 2010. 27 introduced species were targeted in this investigation. No new species to Norway was found, but six species already established in Norway were observed at a number of sites. The ascidian Styela clava, native to northwest Pacific, was recorded at eleven sites in the county, and was most abundant at sites near Stavanger, where the species was recorded for the first time in 1990. The Japanese wire weed Sargassum muticum was recorded on 26 of 36 sites, and was quite abundant on many of them. The method is well suited for mapping of sessile organisms in shallow waters, but is less applicable for recordings of mobile animals such as crustaceans