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Schmitt, W.L. 1941 Obituary. Charles Branch Wilson, October 20, 1861- August 18, 1941. Science, New York
Volume: 94:358-359.
Wilson: paper
Vasechkina, E.F. & V.D. Yarin 2009 Object-based modeling of the coastal marine ecosystem. Physical Oceanography C/C of Marskoi Gidrofizicheskii Zhurnal
Volume: 19(5):315-338.
 
Culver, D.C., L.L. Master, M.C. Christman & H.H. Hobbs, III 2000 Obligate cave fauna of the 48 contiguous United States. Conservation Biology
Volume: 14(2):386-401.
 
Klebanovsky, V.A. 1974 Obnaruzhenie Microcyclops planus (Copepoda, Cyclopoidae) v zapadnoi Sibiri. A finding of Microcyclops planus (Copepoda, Cyclopoidae) in West Siberia. Zoologicheskii Zhurnal
Volume: 53(6):936-938, figs. 1-11. (28-v-1974, Russian with English summary.)
 
Dolgikh, A.V. & L.I. Sazhina 1967 Obnaruzhenie Trochicola entericis Dollf (Crustacea. Copepoda) u mollyuskov Chernogo morya. A finding of Trochicola entericus Dollf. in molluscs of the Black Sea. Zoologicheskii Zhurnal
Volume: 46(11):1714-1715, figs.1-2. (14-xi-1967, Russian with English summary).
Wilson: paper
Dilgikh, A.V. & L.I. Sazhina 1967 Obnaruzhenie Trochicola entericus Dollf. (Crustacea, Copepoda) u mollyuskov Chernogo morya. A finding of Trochicola entericus Dollf. in molluscs of the Black Sea. Zoologicheskii Zhurnal
Volume: 46(11):1714-1715, figs. 1-2. (14-xi-1967, Russian with English summary).
Wilson: paper
Beklemishev, K.V. 1954 Obnaruzhenie kremnevykh obrazovanii v kozhnykh pokrovakh nizshikh rakoobraznykh. (The discovery of silicid acid for the protection of the skin in Copepoda). Doklady Akademii Nauk SSSR
Volume: 97(3):543-545, figs. 1-3. (Russian.)
 
Monchenko, V.I. & V.V. Polishchuk 1982 Obnaruzhenie predstavitelya roda Halicyclops (Crustacea, Copepoda) v kontinental'no chasti Ukrainy. A finding of a representative of the genus Halicyclops (Crustacea, Copepoda) in mainland Ukraine. Vestnik Zoologii
Volume: 1982(6):75-78, figs. 1-6. (23-xi-1982, Russian with English summary).
Wilson: paper
Avdeev, G.V. 1980 Obosnovanie novogo roda Cephalocolax g.n. (Copepoda, Cyclopoida) i opisanie novogo vida C. katsuwoni sp. n. ot tuntsa iz Bengal'skogo zaliva. The erection of the new genus Cephalocolax g.n. (Copepoda, Cyclopoida) and description of the new species C. katsuwoni sp. n. from Katsuwonus pelamis from the Bay of Bengal. Parazitologiya
Volume: 14(4):333-339, figs. l-3. ( 12-vi-1980, Russian with English summary.)
Wilson: paper
Zhuravel, P.A. 1967 Obrazovanie novykh ochagov fauny limanno-Kaspiiskogo kompleksa v vodoemakh rezlichnykh klimaticheskikh zon SSSR. Formation of new fauna locations of the estuary Caspian complex in water reservoirs of different climatic zones of the USSR. Zoologicheskii Zhurnal
Volume: 46(8):1152-1162. (28-vii-1967, Russian with English summary.)
 
Rioja, E. 1940 Observaciones acerca del plancton del Lago de Pátzcuaro. Anales del Instituto de Biología, Universidad Nacional Autónoma de México, Serie Zoología
Volume: 11(2):417-425. (vi-1940)
Wilson: paper
Armengol, J., M. Estrada, A. Guiset, R. Margalef, D. Planas, J. Toja & F. Vallespinos 1975 Observaciones limnologicas en las lagunas de la Mancha Boletín de la Estación Central de Ecología
Volume: 4(8):11-27, figs. 1-2, tabs. 1-7.
 
Gómez, S. 1975 Observaciones plantónicas en la bahía de Cartagena (10°20'N - 75°30'W), en febrero y marzo de 1974. [Observations of the plankton in Cartagena Bay (10°20'N - 75°30'W), in February and March 1974.] In: Pérez-Rodríguez (Ed.). Memorias Simposio Latinoamericano sobre Oceanografía Biológica, México D.F. 382 p.
Volume: Pp. 172-182. [In Spanish.]
 
Jansa, J. 1986 Observaciones sobre Acartia clausi, Centropages ponticus y algunos espetos generales del zooplankton del Puerto de Mahon a lo largo de 1980 y 1981. Bolleti de la Societat d'Historia Natural de les Balears
Volume: 30:105-125, figs. 1-11. (Engish summary.)
 
Ringuelet, R.A., S.R. Olivier, S.A. Guarrera & R.H. Aramburu 1955 Observaciones sobre antoplancton y mortandad de peces en Laguna del Monte (Buenos Aires, República Argentina). Noticias del Museo de La Plata 'Eva Peron', Serie Zoología
Volume: 18(159):71-80.
 
Pallares, R.E. 1980 Observaciones sobre el ciclo biologico y comportamiento 'in vitro' de un copépodo harpacticoide litoral Tigriopus californicus (Backer). Contribuciones Científicas del Centro de Investigaciones de Biología Marina (CIBIMA) Buenos Aires
Volume: 169:5-38, fig. 1, Photo 1, Graphs 1-19.
Wilson: paper
Suárez-Caabro, J.A. & S. Gómez-Aguirre 1966 Observaciones sobre el plancton de la laguna de Términos, Campeche, México. Bulletin of Marine Science
Volume: 15(4):1072-1120, tabs. 1-5, figs. 1-19. (31-i-1966).
 
Zúñiga, L.R. & T.P. Domínguez 1977 Observaciones sobre el zooplancton de lagos chilenos. Anales del Museo de Historia Natural de Valparaíso
Volume: 10:107-120, figs. 1-3, tabs. 1-5.
Wilson: paper
Romano, J.E. 1984 Observaciones sobre el zooplancton de red en la zona de acceso al Puerto de Mar del Plata. [Observations on the net zooplankton in the access zone to the Port of Mar del Plata.] Tesis de Licenciatura, Universidad Nacional, Facultad de Ciencias Exactas y Naturales, Mar del Plata, Argentina.
Volume: 20 pp. [In Spanish.]
 
Welez, J.A., J. Pozo & E. Orive 1988 Observaciones sobre la distribución del zooplacton en el area estuárico-costera del Abra de Bilbao. Observations on the zooplankton distribution in the Abra of Bilbao estuarine-coastal area. Munibe (Ciencias Naturales)
Volume: 40:91-98. [In Spanish; abstracts in Basque and English.]
 
De Aracama, J.D. 1987 Observaciones sobre la distribución vertical del plancton en la zone interna del estuario de Bahía Blanca. Tesis de Licenciatura, Universidad Nacional del Sur, Bahía Blanca, Argentina
No Volume Data Available
 
Osorio-Tafall, B.F. 1943 Observaciones sobre la fauna acuatica de las cuevas de la región de Valles, San Luis Potosi (México). Revista de la Sociedad Mexicana de Historia Natural
Volume: 4:43-71. (vi-1943, Spanish with English summary)
Wilson: paper
Barth, R. 1963 Observaçoes micro-anatômicas sobre a locomoçao de certos Copépodos (Crustácea). Notas Técnicas do Instituto de Pesquisas Marinhas, Rio de Janeiro
Volume: 5:1-14, figs. 1-4, pl. 1. (ii-1963)
 
Ceccarelli, P.S., L.B. Figueira, C.L.B. Ferraz de Lima & C.A. Oliveira 1990 Observaçoes sobre a ocorrência de parasitas no CEPTA entre 1983 e 1990. Boletim Técnico do CEPTA, Pirassununga, Sao Paulo
Volume: 3:43-54.
 
Figueira, L.B. & P.S. Ceccarelli 1991 Observaçoes sobre a presença de ectoparasitas em pisciculturas tropicais do interior (CEPTA e regiao). Boletim Técnico do CEPTA, Pirassununga, Sao Paulo
Volume: 4(1):57-65.
 
Barth, R. 1959 Observaçoes sobre duas amostras de plâncton, provenientes da Enseada de Copacabana. Anais da Academia Brasileira de Ciências
Volume: 31:617-622, figs. 1-8, tabs. 1-2. (31-xii-1959)
 
Popescu, E. 1960 Observatii asupra planctonului ín regiunea de Amonte a DunArii inferioare (Km 1042 - Km 957). Buletinul Institutului Cercetari si Proiectari Piscicole
Volume: 19(3):5-17, tabs. 1-6. (vii/ix-1960)
 
Boisteanu, T. 1979 Observatii asupra zooplanktonului din lacul Schiauca jud. Ialomia. (Observations on zooplankton of Lake Shiauca, Ialomita). Analele Stiintifice ale Universitatii Al. 1. Cuza din Iasi, n. ser.
Volume: (2, Biol.), 25:139-142, fig. 1, tab. 1. (Romanian with French summary).
 
Bacescu, M. 1942 Observatii biologice si faunistice in legatura cu Balta Greaca. Rev. St. 'Adamachi' Iasi
Volume: 28(2-3).
 
Boisteanu, T. 1981 Observatii privind zooplanktonul lacului Nuntai judeul Constanta. (Observations on the zooplankton from Nuntas Lake, Constanta County). Analele Stiintifice ale Universitatii Al. 1. Cuza din Iasi, n. ser.
Volume: (2, Biol.), 27:135-140, fig. 1, tab. 1. (Romanian with French summary).
 
Hirabayashi, K., T. Arakawa, N. Yoshida, F. Kazama, K. Yoshizawa, K. Ariizumi & K. Nagasawa 2005 Observation of free living Argulus japonicus in the natural lake. Proceedings of General Assembly of The Japanese Society of Limnology
Volume: 69:176. [Abstract; in Japanese.]
 
Pandey, B.L., P.L.N. Rao, B.K. Singh & M.D. Pisolkar 1995 Observation on qualitative abundance of plankton in Bhatghar reservoir, Pune, Maharashtra. Journal of the Inland Fisheries Society of India
Volume: 25(2):48-50. (For 1993)
 
Rajkumar, R. 1990 Observation on species environmental relationships in urban aquatic ecosystems. M.Phil. Thesis, University of Madras, Guindy Campus, Chennai, Madras, India.
No Volume Data Available
 
Ishida, T. 1974 Observation on the abundance of plankton crustaceans in Lake Shikotsu. Results in 1971-1973. Scientific Reports of the Hokkaido Salmon Hatchery
Volume: 28:27-31. [In Japanese with English abstract.]
 
Bhandarkar, S.V. & G.T. Paliwal 2010 Observation on the collection of zooplankton in Lakhani lake, district Bhandara, Maharashtra (India). Environment Conservation Journal
Volume: 11(3):109-111.
 
Leong, T.S. 1978 Observation on the helminths in some economically important marine fish in Pulau Pinang. Medical Journal of Malaysia
Volume: 32(4):328-330.
 
Huda, I.A. & J. Ahmed 1985 Observation on the seasonal variation in the composition of zooplankton and distribution of the planktonic biomass in inshore waters of Karachi coast (Korangi creek). Records of the Zoological Survey of Pakistan
Volume: 10(1&2):91-99.
 
Roubaud, E. 1913 Observation sur la biologie du ver de Guinée infection intestinale des Cyclops. Observation on the biology of the Guinea-worm intestinal infection of Cyclops. Marine and Freshwater Research
Volume: 6:281-288. [In French.]
 
Somov 1954 Observational data of the scientific research drifting station of 1950-1951. Izd. Morskoi Transport. Translation American Abstr. Soc.
Volume: AF 19(604)-1936, Astia doc. no. AD117135.
 
Gao, Y.H. & S. Li 1990 Observational experiments on feeding rates of Centropages tenuiremis. Tropic Oceanology
Volume: 9(3):59-65.
 
Vernet, H. 1871 Observations anatomiques et physiologiques sur le genre Cyclops. Dissertation Inaugurale Presentée à la Faculté de Philosophie de Zurich
Volume: 47pp. figs.1-5.
Wilson: paper
Tett, P. & A. Walne 1995 Observations and simulations of hydrography, nutrients and plankton in the southern North Sea. Ophelia
Volume: 42:371-416.
 
Gotto, R.V. & L.T. Threadgold 1980 Observations and speculations on the alate processes of the ascidicolous copepod Notopterophorus papilio (Cyclopoida: Notodelphyidae). Journal of Zoology, London
Volume: 190(3):337-363, figs. 1-3, pls. 1-8. (11-iii-1980)
Wilson: paper
Lefevre, S., E. Leloup & L. Van Meel 1956 Observations biologiques dans le port d'Ostende. Mémoires de l'Institut Royal des Sciences Naturelles de Belgique
Volume: 133:1-157, pls. 1-3. (30-vi-1956)
 
Schodduyn, R. 1927 Observations biologiques marines faites dans un parc à huitres. Bulletin de l'Institut Océanographique, Monaco
Volume: 498:1-44. (20-vii-1927)
 
Dumitrescu, E., A. Marcus & M. Gutu 1973 Observations biologiques sur le Vectoriella marinovi Stock, 1968 (Copepoda, Cyclopoida) trouvé à Mamaia. Travaux du Museum National d'Histoire Naturelle Grigore Antipa
Volume: 13:101-104, figs. 1-3.
Wilson: paper
Risbec, J. 1930 Observations biologiques sur quelques mollusques de la Nouvelle-Caledonie. Bulletin du Muséum National d'Histoire Naturelle, Paris, n.s.
Volume: 2(6):660-664. figs.1-8.
 
Petran, A. & T. Onciu 1981 Observations concernant les migrations nycthémérales d'Acartia clausi de la côte roumaine (Mer Noire). Rapports et Procès-Verbaux des Réunions de la Commission Internationale pour l'Exploration Scientifique de la Mer Méditerranée, Monaco
Volume: 27(7): 187-188. (26-X-1981, English Summary).
 
Joblot, L. (ed.) 1754 Observations d'histoire naturelle, faites avec le microscope. No Journal Data Available
Volume: 2, 1(1): i-xx, 1-38, pls. 1-14; 1(2): 1-124, pls. 1-15.
 
Maury, A. 1933 Observations d'un Copépode parasite: Lernaeenicus enchrassicolus Turt. Bulletin de la Société Linnéenne de Normandie
Volume: (8)5:8-9.
 
Marcus, A. 1975 Observations écologiques sur les Copépodes trouvés dans le 'Champ de Phyllophora' de la mer Noire. Travaux du Museum National d'Histoire Naturelle Grigore Antipa
Volume: 16:71-75.
Wilson: paper
Caillet, C. & A. Raibaut 1979 Observations expérimentales sur la sexualité du Copépode Caligoïde Clavellodes macrotrachelus( Brian, 1906), parasite brachial du Sar Diplodus sargus (Linné, 1758). Comptes Rendus Hebdomadaires des Séances de l'Académie des Sciences, Paris
Volume: (D)288(2):223-226, figs. 1-2. (15-i-1979)
Wilson: paper
Schodduyn, R. 1926 Observations faites dans la baie d'Ambleteuse (Pas de Calais). Bulletin de l'Institut Océanographique, Monaco
Volume: 482:1-64. (15-x-1926)
 
Aguesse, P.C. & L. Bigot 1960 Observations floristiques et faunistiques sur un étang de Moyenne Camargue: La Baisse Salée de la Tour du Valet. Vie et Milieu
Volume: 11(2):284-307, figs. 1-5, tabs. 1-3. (viii-1960)
 
Leentvaar, P. 1967 Observations in guanotrophic environments. Hydrobiologia, The Hague
Volume: 29(3-4):441-489, figs. 1-7, tabs. 1-10. (30-v-1967)
 
Topping, M.S. 1972 Observations of Diaptomus siciloides and Diaptomus clavipes. Transactions of the Kansas Academy of Science
Volume: 74:239-240. (7-iv-1972)
 
Prophet, C.W. 1978 Observations of Leptodora kindtii (Focke) (Crustacea: Cladocera) and associated zooplankters in southeastern Kansas lakes. Southwestern Naturalist
Volume: 23(1):168-170.
 
Osgood, K.E. & D.M. Checkley, Jr. 1997 Observations of a deep aggregation of Calanus pacificus in the Santa Barbara Basin. Limnology and Oceanography
Volume: 42(5 part 1):997-1001.
 
Hoffmayer, E.R., J.S. Franks, W.B. Driggers, III, K.J. Oswald & J.M. Quattro 2007 Observations of a feeding aggregation of whale sharks, Rhincodon typus, in the north central Gulf of Mexico. Gulf and Caribbean Research
Volume: 19(2):69-73.
 
Hoffmayer, E.R., J.S. Franks, W.B. Driggers, III, K.J. Oswald & J.M. Quattro 2007 Observations of a feeding aggregation of whale sharks, Rhincodon typus, in the north central Gulf of Mexico. Proceedings of the Gulf and Caribbean Fisheries Institute
Volume: 59:612. [Abstract.]
 
Kampa, E.M. 1975 Observations of a sonic-scattering layer during the total solar eclipse 30 June, 1973. Deep Sea Research and Oceanographic Abstracts
Volume: 22(6):417-420.
 
Lapota, D. & J.R. Losee 1984 Observations of bioluminescence in marine plankton from the Sea of Cortez. Journal of Experimental Marine Biology and Ecology
Volume: 77(3):209-240, figs. 1-14, tabs. 1-3. (31-v-1984)
 
Byron, E.R., P.T. Whitman & C.R. Goldman 1983 Observations of copepod swarms in Lake Tahoe. Limnology and Oceanography
Volume: 28(2):378-382, figs. 1-2. (iii-1983)
Wilson: paper
Ceccuzzi, P., G. Terova, F. Brambilla, M. Antonini & M. Saroglia 2010 Observations of Eurasian perch (Perca fluviatilis L.) post-larvae growth performances reared in an illuminated floating cage in Varese lake (N-W Italy) over a two years period. Italian Journal of Animal Science
Volume: 9(1):e14. http://ijas.pagepress.org/index.php/ijas/article/viewArticle/ijas.2010.e14/1249
 
Penston, M.J., M. McKibben, D.W. Hay & P.A. Gillibrand 2002 Observations of sea lice larvae distributions in Loch Shieldaig, western Scotland. ICES
Volume: CM2002/T:09.
 
Koeller, P.A. 1977 Observations of some bathypelagic copepods living in British Columbia mainland inlets. Journal of the Oceanographical Society of Japan
Volume: 33(4):219-226, tabs. 1-3. (viii-1977)
 
Rajakumar, R., R. Ramanibai & N. Devaraj 1994 Observations of species (plankton) - environment relationships in urban aquatic ecosystems. Journal of Environmental Biology
Volume: 15(3):177-183.
 
Strickler, J.R. 1977 Observations of swimming performances of planktonic copepods. Limnology and Oceanography
Volume: 22(1):165-170. (i-1977).
 
Lincoln, R.J. 1971 Observations of the effects of changes in hydrostatic pressure and illumination on the behaviour of some planktonic crustaceans. Journal of Experimental Biology
Volume: 54(3):677-688, figs. 1-3. (vi-1971)
 
Drummond, J.C. & E.R. Gunther 1934 Observations of the fatty constituents of marine plankton. III. The vitamin A and D content of oils derived from plankton. Journal of Experimental Biology
Volume: 11:203-209, tabs. 1-3.
 
Saiz, E. 1994 Observations of the free-swimming behavior of Acartia tonsa: effects of food concentration and turbulent water motion. Limnology and Oceanography
Volume: 39(7):1566-1578.
 
Tamura, T. 1951 Observations of the plankton in drift ice. Bulletin of the Faculty of Fisheries, Hokkaido University
Volume: 1(3-4):134-138, tabs. 1-5. (Japanese.)
 
Boisteanu, T. 1987 Observations of the zooplankton of Lake Negreni Basin, Botosani region. Analele Stiintifice ale Universitatii Al. 1. Cuza din Iasi, n. ser.
Volume: Sect. II, (A)33:65-66, unpaginated figs., tabs. (Romanian with English summary).
 
Fonda-Umani, S., L. Milani & M. Specchi 1985 Observations of zooplankton in the north and central Adriatic Sea. Rapports et Procès-Verbaux des Réunions de la Commission Internationale pour l'Exploration Scientifique de la Mer Mediterranée, Monaco
Volume: 29(9):303-305.
 
Dobson (Miss) & Samouelle (Mr.) 1836 Observations on Argulus foliaceus Jurine, as injurious to gold and silver fishes. Naturalist
Volume: 1(Aug): ? (also in Mag. of Natural History, 9:498)
 
Williams, J.A. & J. Reubold 1990 Observations on Aurelia aurita within the zooplankton of Southampton water, with particular reference to its 'absence' in summer 1988. Porcupine Newsletter
Volume: 4(8):192-197.
 
Werner, I. & H.J. Hirche 2001 Observations on Calanus glacialis eggs under the spring sea ice in the Barents Sea. Polar Biology
Volume: 24(4):296-298.
 
Kabata, Z. 1960 Observations on Clavella (Copepoda) parasitic on some British gadoids. Crustaceana (Leiden)
Volume: 1(4):342-352, fig. 1, tabs. 1-2. (12-x-1960)
Wilson: paper
Kellicott, D.S. 1879 Observations on Lerneocera cruciata. American Journal of Microscopy and Popular Science, New York
Volume: 4(10-12):192-194. (x/xii-1879)
 
Kellicott, D.S. 1880 Observations on Lerneocera cruciata. Proceedings of the American Society of Microscopists
Volume: 1:64-68, pls. 1-2.
Wilson: paper
Natarajan, P. & N. Balakrishnan Nair 1972 Observations on Pseudocycnus armatus (Bassett-Smith) parasitic on Indocybium guttatum (Bloch & Sch.). Hydrobiologia
Volume: 40(1):69-76, figs. 1-7, pl. (31-viii-1972)
Wilson: paper
Gotto, R.V. 1984 Observations on Synaptiphylus tridens (T. & A. Scott), an ecto-associate of holothurians. In: Vervoort, W. (ed.). Studies on Copepoda II. Proceedings of the First International Conference on Copepoda, Amsterdam, The Netherlands, 24-28 August 1981. Crustaceana, Supplement
Volume: 7:214-216. (10-viii-1984)
Wilson: paper
Kurian, C.V. 1948 Observations on a copepod Caligus pterois sp. nov.) parasitic on scorpion fish Pterois russellii (van Hass). Proceedings of the Indian Science Congress
Volume: 35(3):193-194. (Abstract.)
 
Sebastian, M.J. 1966 Observations on a few parasitic copepods from South India. Bulletin of the Department of Marine Biological Oceanography, University of Kerala
Volume: 2:19-25, figs. 1-18. (xii-1966)
Wilson: paper
Haley, A.J. & H.E. Winn 1959 Observations on a lernean parasite of freshwater fishes. Transactions of the American Microscopical Society
Volume: 88(2):128-129, figs. 1-2. (iv-1959)
Wilson: paper
Olivier, P.A.S., S.M. Dippenaar, L.F. Khalil & N.M. Mokgalong 2000 Observations on a lesser-known monogenean, Udonella myliobati, from a copepod parasite, Lepeophtheirus natalensis, parasitizing the spotted ragged-tooth shark, Carcharias taurus, from South African waters. Onderstepoort Journal of Veterinary Research
Volume: 67(2):135-140. (vi.2000)
Wilson: paper
Abe, T., K. Sekiguchi, H. Onishi, K. Muramatsu & T. Kamito 2012 Observations on a school of ocean sunfish and evidence for a symbiotic cleaning association with albatrosses. Marine Biology (Berlin)
Volume: 159(5):1173-1176.
 
Sehgal, K.L. 1962 Observations on biology of the two species of diaptomids: Heliodiaptomus viduus Gurney and Neodiaptomus strigilipes Gurney commonly occurring in fish ponds at Cuttack. Proceedings of the Indian Science Congress
Volume: 49(3):392-393.
 
Lapota, D., T.E. Bowman & J.R. Losee 1988 Observations on bioluminescence in the nauplius of Metridia longa (Copepoda, Calanoida) in the Norwegian Sea. Crustaceana (Leiden)
Volume: 54(3):314-320, fig. 1, tab. 1. (v.1988)
Wilson: paper, PDF
Johnston, C.E. & D. Dykeman 1987 Observations on body proportions and egg production in the female parasitic copepod (Salmincola salmoneus) from the gills of Atlantic salmon (Salmo salar) kelts exposed to different temperatures and photoperiods. Canadian Journal of Zoology
Volume: 65(2):415-419.
 
Hart, R.C. 1987 Observations on calanoid diet, seston, phytoplankton, zooplankton relationships, and inferences on calanoid food limitation in a silt-laden reservoir. Archiv für Hydrobiologie
Volume: 111(1):67-82.
Wilson: paper
Johansen, F. 1931 Observations on Canadian freshwater Crustacea made in 1927-29. Canadian Field-Naturalist, Ottawa
Volume: 45(4):80-83.
Wilson: paper
Metz, C. & S.B. Schnack-Schiel 1995 Observations on carnivorous feeding in Antarctic calanoid copepods. Marine Ecology Progress Series
Volume: 129:71-75. (14.xii.1995)
Wilson: paper
Moore, Benjamin 1909 Observations on certain marine organisms of (a) variations in reaction to light, and (b) a diurnal periodicity of phosphorescence. Biochemical Journal
Volume: 4(1-2):1-29.
 
Scott, T. 1905 Observations on Crustacea collected during the hydrographic cruises, 1902-1903. Report of Fisheries and Hydrographic Investigation in the North Sea, etc. Fishery Board of Scotland
Volume: 1905:215-257.
Wilson: paper
Corkett, C.J. 1984 Observations on development in copepods. In: Vervoort, W. (ed.). Studies on Copepoda II. Proceedings of the First International Conference on Copepoda, Amsterdam, The Netherlands, 24-28 August 1981. Crustaceana, Supplement
Volume: 7:150-153. (10-viii-1984)
Wilson: paper
Corkett, C.J. 1981 Observations on development in copepods. In: Vaupel Klein, J.C. von (ed.). First International Conference on Copepoda, Amsterdam, 24-28 August 1981. Collected Abstracts.
Volume: :13. (Abstract.)
Wilson: paper
Motoda, S. 1953 Observations on diurnal migration of plankton crustaceans in lakes Shikotsu, Hokkaido, and Tsugarujuni, Aomori, and some experiments on photo- and geotropism. Memoirs of the Faculty of Fisheries, Hokkaido University
Volume: 1(1):1-56, figs. 1-10, tabs. 1-15.
Wilson: paper
Ianora, A. & B. Scotto di Carlo 1987 Observations on egg production rates and seasonal changes in the internal morphology of Mediterranean populations of Acartia clausi and Centropages typicus. In: World Association of Copepodologists: Third International Conference on Copepoda, British Museum (Natural History), London, 10-14 August 1987, Program and Abstracts
Volume: :unpaginated supplement. (Abstract.)
Wilson: paper
Ianora, A. & B. Scotto di Carlo 1988 Observations on egg production rates and seasonal changes in the internal morphology of Mediterranean populations of Acartia clausi and Centropages typicus. In: Boxshall, G.A. & H.K. Schminke (eds.). Biology of Copepods. Proceedings of the Third International Conference on Copepoda. Dev. Hydrobiol., Kluwer Academic Publishers. Dordrecht, Boston, London.
Volume: 47 (= Hydrobiologia, 167-168):247-253, figs. 1-5.
Wilson: paper
Shrivastava, Y., B. Fernandes, S.C. Goswami, U. Goswami & C.T. Achuthankutty 1999 Observations on feeding behaviour and survival rates in the estuarine calanoid copepods Acartia spinicauda and Heliodiaptomus cinctus (Crustacea: Copepoda: Calanoida). Indian Journal of Marine Sciences
Volume: 28(2):222-224. (vi.1999)
 
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Lahav, M. & S. Sarig 1964 Observations on the biology of Lernaea cyprinacea L. in fish ponds in Israel. Bamidgeh, Bulletin for Fish Culture in Israel
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Govindankutty, A.G. & N.B. Nair 1973 Observations on the breeding periods of certain interstitial nematodes, gastrotrichs and copepods of the south-west coast of India. Journal of the Marine Biological Association of India
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Kauvee, I.K.V., Gibbons, M.J. & H.M. Verheye 2005 Observations on the composition of the copepod community either side of the Lüderitz upwelling cell. B.Sc. (Honors) Thesis, University of the Western Cape, Tygerberg, South Africa.
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Grobler, N.J., K.W. Christison, P.A.S. Olivier & J.G. Van As 2003 Observations on the development of Udonella caligorum Johnston, 1835 (Monogenea: Polyonchoinea) on a parasitic copepod species of Caligus (Copepoda: Caligidae), collected from Lake St Lucia, South Africa. African Zoology
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Moravec, F. & T. Scholz 1994 Observations on the development of Syncuaria squamata (Nematoda: Acuariidae), a parasite of cormorants, in the intermediate and paratenic hosts. Folia Parasitologica, Ceske Budejovice
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Ilyichev, V.I., V.V. Anikiev, E.G. Starodubtsev, N.A. Rodionov, N.M. Kulinich & A.V. Shornikov 1982 Observations on the distribution of the red tide in Peter the Great Bay (Sea of Japan). Biologiya Morya, Vladivostok / Russian Journal of Marine Biology
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De Decker, A.H.B. 1964 Observations on the ecology and distribution of Copepoda in the marine plankton of South Africa. Investigational Reports of the Division of Sea Fisheries, Republic of South Africa
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Bricker, K.S., J.E. Gannon, L.S. Roberts & B.G. Torke 1978 Observations on the ecology and distribution of free-living Ergasilidae (Copepoda, Cyclopoida). Crustaceana (Leiden)
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Onwuliri, C.O.E., R.C. Obi & J.C. Anosike 1991 Observations on the ecology of Cyclops in Nigeria. Tropical Ecology
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Razouls, S. 1985 Observations on the ecophysiology of a planktonic Crustacean, Drepanopus pectinatus (Copepoda, Calanoida, Pseudocalanidae), from southern islands. In: Gray, J.S. & M.E. Christiansen (eds.). Marine Biology of Polar Regions and Effects of Stress on marine Organisms. Proceedings XVIII. European marine Biology Symposium
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Pillai, N.K. 1963 Observations on the genus Abasia (Copepoda) with the description of a new species. Crustaceana (Leiden)
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West, G.A. 1987 Observations on the genus Colobomatus, copepod parasites of the lateral-line canals of fishes. Ph.D. Thesis, University of Queensland, Brisbane, Queensland, Australia.
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Pillai, N.K. & R.S. Lal Mohan 1967 Observations on the genus Heniochophilus (Copepoda) with a redescription of the type species. Journal of the Marine Biological Association of India
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Saraswathy, M. 1961 Observations on the genus Ratania (Copepoda) with a description of the type species. Bulletin of the Central Research Institute, University of Kerala
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Packard, A.S., Jr. 1867 Observations on the glacial phenomena of Labrador and Maine, with a view of the recent invertebrate fauna of Labrador. Memoirs of the Boston Society of Natural History
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Tedla, S. & C.H. Fernando 1969 Observations on the glochidia of Lampsilis radiata (Gmelin) infesting yellow perch, Perca flavescens (Mitchell) in the Bay of Quinte, Lake Ontario. Canadian Journal of Zoology
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Thomas, M.M. 1961 Observations on the habits and post-embryonic development of a parasitic branchiuran Argulus puthenveliensis Ramakrishna. Journal of the Marine Biological Association of India
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Rahemo Zohair, I.F., H.S. Bushra & Al-Neemi 1999 Observations on the histopathology caused by some parasites of the freshwater fish, Silurus glanis L. Rivista di Parassitologia
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Joy, J.E. & L.P. Jones 1973 Observations on the inflammatory response within the dermis of a white bass, Morone chrysops (Rafinesque), infected with Lernaea cruciata (Copepoda: Caligidae). Journal of Fish Biology
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Miller, R.B. & W.A. Kennedy 1948 Observations on the lake trout of Great Bear Lake. Journal of the Fisheries Research Board of Canada
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Wang, P.Q. & Y.R. Zhao 1980 Observations on the life history of Anguillicola globiceps (Nematoda: Anguillicolidae). Acta Zoologica Sinica
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Herrington, W.C., H.M. Bearse & F.E. Firth 1939 Observations on the life history, occurrence, and distribution of the redfish parasite Sphyrion lumpi. Special Scientific Report of the United States Bureau of Fisheries
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Forester, S.J. 1990 Observations on the meiobenthos associated with seagrass (Thalassia testudinum) beds and coral sand, Belize. B.Sc. Thesis, Queen Mary and Westfield College, University of London, London, U.K.
No Volume Data Available
 
Walker, E.R. 1908 Observations on the micro-fauna of an Oregon pond. Transactions of the American Microscopical Society
Volume: 28:75-83, pl. 6. (ix-1908)
Wilson: paper
Gannon, J.E. & S.A. Gannon 1975 Observations on the narcotization of crustacean zooplankton. Crustaceana (Leiden)
Volume: 28(2):220-224, tabs. 1-2. (3-iv-1975)
Wilson: paper
Dowidar, N.M. & A.M. El-Maghraby 1971 Observations on the neritic zooplankton community in Abu qir Bay during the flood season. Rapports et Procès-Verbaux des Réunions de la Commission Internationale pour l'Exploration Scientifique de la Mer Mediterranée, Monaco
Volume: 20(3): 385-389, fig. 1, tabs. 1-3.
 
Foxton, P. & H.S.J. Roe 1974 Observations on the nocturnal feeding of some mesopelagic decapod Crustacea. Marine Biology
Volume: 28:37-49.
Wilson: paper
Razaq, A. 1999 Observations on the occurrence of copepod ectoparasites of Theila (Catla catla) (Hamilton) from fish hatchery, Pirowal, (Punjab, Pakistan). M.Sc. Thesis, Institute of Pure & Applied Biology, B.Z. University, Multan, Pakistan
No Volume Data Available
 
Fischthal, J.H. 1956 Observations on the occurrence of parasites in the fishes of certain south-central New York streams. New York Fish and Game Journal
Volume: 3(2):225-233. (vii-1956)
 
Kruger, I., J.G. van As & J.E. Saayman 1983 Observations on the occurrence of the fish louse Argulus japonicus Thiele, 1900 in the western Transvaal. South African Journal of Zoology
Volume: 18(4):408-410.
 
Gotto, R.V. 1960 Observations on the orientation and feeding of the copepod Sabelliphilus elongatus M. Sars on its fanworm host. Proceedings of the Zoological Society of London
Volume: 133(4):619-628, fig. 1, pl. 1. (iii-1960)
Wilson: paper
Santhakumari, V. & N. Balakrishnan Nair 1982 Observations on the parasites and associates of wood boring molluscs and crustaceans of the south-west coast of India. Fishery Technology
Volume: 19(2):65-73.
 
Costello, M.J. & A.A. Myers 1989 Observations on the parasitism on Aora gracilis (Bate) (Amphipoda) by Sphaeronella leuckartii Salensky (Copepoda), with a review of amphipod - Sphaeronella associations. Journal of Natural History
Volume: 23(1):81-91.
Wilson: paper
Santos, M.J. 1996 Observations on the parasitofauna of wild sea bass (Dicentrarchus labrax L.) from Portugal. Bulletin of the European Association of Fish Pathologists
Volume: 16(3):77-79.
 
Van As, J.G., A.J. Reinecke & H.J. Schoonbee 1981 Observations on the passive immigration and emigration of the Cladocera and Copepoda of an irrigation reservoir in the Transvaal, South Africa. Wetensch. Bijdraes Potchefstroomse Univ. Christelike Hoere Onderwys
Volume: (B)109: 1-17, figs.
 
Clarke, G.L. 1933 Observations on the penetration of daylight into mid-Atlantic and coastal waters. Biological Bulletin, Woods Hole
Volume: 65(2):317-337.
Wilson: paper
De Kay, J.E. 1822 Observations on the 'Pennatule flèche' (P. sagitta of LaMarck) in the Cabinet of Dr. Mitchell. American Journal of Science
Volume: 4:87-89, fig. 1. (Marked x-1821, which seems to be incorrect).
 
Belsare, S.G., D.H. Mhasawade & P.S. Gore 1975 Observations on the plankton and hydrological features of Bombay waters. Journal of Biological Sciences
Volume: 18:11-21.
 
Kaliyamurthy, M. 1977 Observations on the plankton ecology of Pulicat Lake. Indian Journal of Fisheries
Volume: 22(1-2):86-95, figs. 1-5, tab. 1. (viii-1977)
 
Motoda, S. & M. Anraku 1952 Observations on the plankton of Funda Bay, Hokkaido. 1. Vertical distribution of plankton at the mouth of the Bay in August, 1950. Bulletin of the Hokkaido National Fisheries Research Institute
Volume: 5:17-20, figs. 1-2, tab. 1. (viii-1952, Japanese with English summary).
Wilson: paper
Peck, J.I. & N.R. Harrington 1898 Observations on the plankton of Puget Sound. Transactions of the New York Academy of Science
Volume: 16:378-387.
Wilson: paper
Haberyan, K.A., G. Umaña V., C. Collado & S.P. Horn 1995 Observations on the plankton of some Costa Rican lakes. Hydrobiologia
Volume: 312(2):75-85.
 
George, M.J. 1958 Observations on the plankton of the Cochin backwaters. Indian Journal of Fisheries
Volume: 5:375-401, figs. 1-13.
 
Smyly, W.J.P. 1968 Observations on the planktonic and profundal Crustacea of the lakes of the English Lake District. Journal of Animal Ecology
Volume: 37:693-708, figs. 1-4, tabs. 1-5. (x-1968)
Wilson: paper
Leentvaar, P. 1957 Observations on the populations of plankton and microorganisms in an old branch cut off from the river Waal. Beaufortia
Volume: 5(64):205-211, figs. 1-3. (28-vi-1957)
 
Smyly, W.J.P. 1970 Observations on the rate of development, longevity and fecundity of Acanthocyclops viridis (Jurine) (Copepoda, Cyclopoida), in relation to type of prey. Crustaceana (Leiden)
Volume: 18(1):21-36, figs. 1-2, tabs. 1-6. (3-iii-1970)
 
Spooner, G.M. 1933 Observations on the reactions of marine plankton to light. Journal of the Marine Biological Association of the United Kingdom
Volume: 19:385-438, figs. 1-22. (viii-1933)
 
Huff, N.H. 1923 Observations on the relation of alage to certain aquatic animals of Vadnais Lake, Minnesota. Minnesota University Studies in Biological Sciences
Volume: 4:185-198.
 
Lemma, B. 2009 Observations on the relations of some physico-chemical features and DVM of Paradiaptomus africanus in Lakes Bishoftu-Guda and Hora-Arsedi, Bishoftu, Ethiopia. Limnologica - Ecology and Management of Inland Waters
Volume: 39(3):230-243.
 
Urry, D.L. 1965 Observations on the relationship between the food and survival of Pseudocalanus elongatus in the laboratory. Journal of the Marine Biological Association of the United Kingdom
Volume: 45:49-58, fig. 1, tabs. 1-7. (9-iv-1965)
Wilson: paper
Ohgushi, R. 1970 Observations on the remarkable daily fluctuations of freshwater plankton in a creek of Bangkok, Thailand. In: Kira, T. & K. Iwata (eds.). Nature and Life in Southeast Asia
Volume: 6:113-124, figs. 1-5, pls. 1-3, tabs. 1-2.
 
Castro-Romero, R. 1999 Observations on the reproduction and hatching of Peniculus sp. In: World Association of Copepodologists: Seventh International Conference on Copepoda, Curitiba, 25-31 July 1999; Program and Abstracts
Volume: :75. (Abstract; 25.vii.1999)
 
Ranade, M.R. 1957 Observations on the resistance of Tigriopus fulvus (Fischer) to changes in temperature and salinity. Journal of the Marine Biological Association of the United Kingdom
Volume: 36:115-119, figs. 1-2.
Wilson: paper
Markowski, S. 1960 Observations on the response of some benthonic organisms to power station cooling water. Journal of Animal Ecology
Volume: 29:349-357, figs. 1-2, tabs. 1-2.
 
Tedla, S. & C.H. Fernando 1969 Observations on the seasonal changes of the parasite fauna of yellow perch (Perca flavescens) from the Bay of Quinte, Lake Ontario. Journal of the Fisheries Research Board of Canada
Volume: 26(4):833-843, figs. 1-2, tab. 1. (iv-1969)
 
Menon, M.A.S. 1945 Observations on the seasonal distribution of the plankton of the Trivandrum coast. Proceedings of the Indian Academy of Sciences
Volume: (B)22(2):31-62.
 
Patnaik, S. 1973 Observations on the seasonal fluctuations of plankton in the Chilka Lake. Indian Journal of Fisheries
Volume: 20(1):43-55, figs. 1-3, tab. 1. (vi-1973)
 
Avenant, A. & J.G. Van As 1986 Observations on the seasonal occurrence of the fish ectoparasite Dolops ranarum (Stuhlmann, 1891) (Crustacea: Branchiura) in the Transvaal.` South African Journal of Wildlife Research
Volume: 16(2):62-64.
Wilson: paper
Jolly, V.H. 1967 Observations on the smelt Retropinna lacustris Stokell. New Zealand Journal of Science
Volume: 10(1):330-355. (copepods p.351.)
Wilson: paper

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