http://hdl.handle.net/1834/2872 Wed, 08 Feb 2012 06:05:53 GMT 2012-02-08T06:05:53Z http://www.oceandocs.org:80/retrieve/7142/LOGOINP.jpg http://hdl.handle.net/1834/2872 http://hdl.handle.net/1834/2970 Title: Distribución y abundancia de los recursos demersales en la plataforma continental del Ecuador durante octubre de 1995 Authors: Revelo, W. Abstract: The demersal phase (from 18th to November 01th, 1995) of cruise T95/10/04 DO, covered an area of 15632,6 km2 between 00º36'0”N-80º34'3”O and 03º22'8”S-80º49'5”O, of the Ecuadorian Continental Plataform, the depth range from 14 to 115 meters. 120 species were recorded, divided into 85 osseous fish species, three sharks, 11 ray, 18 crustaceans, two molluscan and one holothurid (sea cucumber). Total biomass was estimated as 95297,5 t; with 97,3% of this biomass distributed between 01º00'0”S and 03º23'S. The most abundant species were: barriga juma (Larimus spp) (11153 t), corvina (Cynoscion spp) (4523 t), gallineta (Prionotus spp) (55651 t), perela (Palabrax callaensis) (3774 t) and ravi junco (Centrithmus signifer) (2407 t). Mon, 01 Jan 1996 00:00:00 GMT http://hdl.handle.net/1834/2970 1996-01-01T00:00:00Z http://hdl.handle.net/1834/2969 Title: Distribución del ictioplancton y zooplancton en el Golfo de Guayaquil y costa central de Manabí durante noviembre de 1995 Authors: Ortega, D.; Elías, E. Abstract: Are presented the distribution of ichthyoplankton and zooplankton between the 2th and 6th of november 1995 were observed from the central coast of Manabí province and the Gulf of Guayaquil waters, 27 stations were surveyed being carried out oblique haulages with nets type bongo of 500~km, 300~km y 150~km, hasta una profundidad de 200 m; superficial haulage were carried out by using a net of 200~km as well twenty families and eleven gennus of ichthyoplankton were identified. The Engraulidae family was the most representative with 3671 larvas (10 m2)-1 while the Scombridae and Clupeidae families registered 46 and 121 larvas (10 m2)-1 respectively. There were identified larvas of demersal fish with: Sciaenidae, Carangidae, Serranidae and Gerridae. In the zooplankton were registered 29 groups between the most abundants was: Copepods, Chaetognats, Daphinds and Euphausids. The major concentrations of zooplanktonic biomass was registered at the south-east (open ocean) of the Guayaquil Gulf with 7 g (10 m3)-1; and the minor quantity toward the north-west of the Santa Elena Punta and North of Manabí coast. A distribution homogenean relation between the abundance of ichthyoplankton and zooplankton with the phytoplankton concentration and the temperature values were between 22~'C and 25~'C. Mon, 01 Jan 1996 00:00:00 GMT http://hdl.handle.net/1834/2969 1996-01-01T00:00:00Z http://hdl.handle.net/1834/2967 Title: Características oceanográficas frente a Ecuador durante noviembre de 1995 Authors: Cuadra, T. de la Abstract: In this work, the oceanographics and atmospheric index showed normals climatical conditions. The horizontal and vertical distributions obtained from 34 oceanographic stations, partitioned the area researched in two: The 1th area in association with weak upwelling in the south of Golfo de Guayaquil, and influenced probably the distributions and abundance of fishery resources. The 2th in the north of the point Sta Elena, in association with a strong thermocline. Mon, 01 Jan 1996 00:00:00 GMT http://hdl.handle.net/1834/2967 1996-01-01T00:00:00Z http://hdl.handle.net/1834/2966 Title: Distribución del ictioplancton y zooplancton en la costa ecuatoriana septiembre 1995 Authors: Ortega, D.; Elías, E.; Zurita, C. Abstract: Between the 6 and 13 of september of 1995, a study about the abundance, distribution of fish eggs and larvae in relation of the abundance and presence of the zooplankton in the Gulf of Guayaquil was carried out. The biggest fish larvae quantity was registered at station 16, 37 and 60 with values 500 and 1000 larvae.(10 m2)-1 which position at was long. 81~'00' - 82~'00'W; lat. 01~'00'S - 3~'04'S while the fish eggs concentration was 500 eggs.(10 m2)-1 at station 21. The smalles fish larvae quantity was registered between 6 and 73 larvae.(10 m2)-1, situated long. 81~'30' - 82~'00'W - lat. 02~'40' - 00~'59'S and 01~'00' south. At north of Gulf near of Puntilla of Santa Elena, Lat. 02~'00'S - Long. 81~'00'W, in the Center of the Ecuadorian coast, near of San Lorenzo cope at station 60 and the South zone near of Saint Clare Island at station 7 were registered fish larvae of commercial concern as Clupeidae, Engraulidae and Scombridae were registered. In the same area higher densities of mesoplanktonic organisms were registered at surface waters, finded 32 groups which values were between 517 and 1183 org.(m3)-1, where more the outstanding were: Cladocers, Quetognates, Copepods, Foraminifers and larvae Gasteropods while in oceanic waters there was less variety of microzooplankton, with values from 272 to 563 org.(m3)-1, 15 zooplanktonic groups were identified, being the most representatives: Foraminifers, Copepods, Cladocers y Quetognats. The highest zooplanktonic biomass concentration was registered at South - east of the Guayaquil Gulf with values from 2 and 7 gr.(100 m3)-1, and the lowest was registered at the North zone of the Ecuadorian coast with value of 1 gr.(100 m3)-1. 36 fish larvae families were identified with 40 gennus and 32 zooplanktonic groups. The fish eggs and larvae abundance was directly related to the zooplanckton presence. Mon, 01 Jan 1996 00:00:00 GMT http://hdl.handle.net/1834/2966 1996-01-01T00:00:00Z