Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Piontkovski, Sergey; Bileva, O K; Moryakova, V K (2008): Mesozooplankton average length during Mikhail Lomonosov cruise ML27, Part II [dataset]. Institute of Biology of the Southern Seas, National Academy of Sciences of Ukraine, Sevastopol, PANGAEA, https://doi.org/10.1594/PANGAEA.693612, In: Piontkovski, Sergey; Agafonov, E A; Akhundova; Akimov, A I; Aladin, N V; Altukhov, Dennis; Andreev, N I; Babanazarova, O V; Babayev, G B; Baksheeva, I P; Baldina, E P; Balymbetov, Kyanish S; Belyakov, Y M; Belyakov, U M; Belyakova, O M; Berg, Lev; Bezborodov, A A; Bileva, O K; Bobko, N I; Boguslavsky, S G; Boltachev, A R; Buivolova, O G; Burlakova, Z P; Ctelmach, L V; Danilenko, A F; Daribaev, A K; Demin, B D; Elibaev; Elmuratov, A E; Erekeev, U E; Eshimbaev; Finenko, Z Z; Georgieva, L V; Goubanova, A D; Greze, V N; Gvozdeva, D L; Hlystov, A Z; Hlystov, N Z; Ilin, Yuri P; Isaeva, F A; Kaminskiy, S T; Karakash, A I; Karnaushenko, N N; Kazakhbaev, S K; Khalturin, Vladimir I; Khlistov, A Z; Kiruhin, V G; Kiryuhin, V G; Kolesnikov, A N; Konovalov, Sergey K; Konovalov, Sergey S; Korol, Dobr; Koroleva, N N; Kortunova, T A; Kotovschikov, B B; Kovalev, Aleksandr V; Kovaleva, Tamara; Koveshnikov, L A; Kovrigina, N P; Krasheninnikov, Boris N; Kravtsov, G L; Krupa, Elena; Kuzmenko, Ludmila V; L'vov, V V; Maksimova, M P; Malinovskaya, A S; Man'kovsky, V I; Man'kovsky, Victor I; Mankovskaya, L I; Manzhos, Ludmila; Markov, A; Melnik, T; Melnikov, V V; Mihaylov, N N; Mishonov, Alexey V; Moryakova, V K; Nikolaev, Vladimir M; Novoselov, A A; Orlova, M I; Ostrovskaya, Nadezhda A; Panina, Oksana; Paranichev, L G; Pastuhov, A F; Pavlenko, N M; Pavlovskaya, T V; Plotnikov, V A; Plotnikov, I S; Polikarpov, I G; Popova, E; Prokhorenko, Yuri A; Prusova, I Yu; Rezen'kov, E M; Romanov, A S; Rossov, V V; Rusakova, O M; Saduakasova, R E; Samodurov, A S; Sazina; Senichkina, Ludmila G; Shalovenkov, Nikolai N; Shemshura, V E; Sherbatenko, P; Sheremeteva, A I; Shmeleva, Alexandra A; Shumakova, G V; Shumchenko, O A; Shurov, S V; Sidko, A F; Sitnikov, I F; Skopintsev, B A; Skryabin, V A; Smirnov, E V; Solov'ev, Mark V; Stel'makh, Lyudmila V; Stuge, Tamara S; Svirina, Ekaterina; Sychev, V I; Sysoev, A; Tagibergenov; Tamoikin, I Yu; Terehin, Yu V; Tolkachenko, Georgy A; Troshina, T; Vapnyar, D U; Vasilev, A S; Vladimirov, V L; Voronova, O; Voskresensky, V N; Yanchilenko, A G; Yastreb, B P; Yastreb, V P; Yunev, Oleg A; Zaika, Viktor E; Zhorov, S V (2002): The Global Plankton Database: an inventory and data from the Former Soviet Union expeditions [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.712421

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Related to:
Piontkovski, Sergey (2002): The Global Plankton Database: an inventory and data from the former Soviet Union expeditions. Darwin Initiative for the Survival of Species (Intas INFO 00-059), NATO Science for Stability TU-Black Sea project (1994-1997), NATO Science for Peace project (1999-2002); Plymouth Marine Laboratory, United Kingdom; Institute of Biology of the Southern Seas & Marine Hydrophysical Institute, Sevastopol, Ukraine; Institute of Zoology of Azerbaijan Academy of Sciences, Baku, Azerbaijan; Institute of Zoology, Almaty, Kazakhstan, CD-ROM
Coverage:
Median Latitude: 37.656966 * Median Longitude: 13.515296 * South-bound Latitude: 36.716700 * West-bound Longitude: 6.000000 * North-bound Latitude: 39.016700 * East-bound Longitude: 18.766700
Date/Time Start: 1972-12-19T11:00:00 * Date/Time End: 1973-04-18T23:01:00
Minimum DEPTH, water: 5.0 m * Maximum DEPTH, water: 528.5 m
Event(s):
ML27-track * Latitude Start: -26.416700 * Longitude Start: 14.350000 * Latitude End: -22.966700 * Longitude End: -22.950000 * Date/Time Start: 1973-02-02T10:00:00 * Date/Time End: 1973-03-19T19:32:00 * Location: South Atlantic Ocean * Campaign: ML27 * Basis: Mikhail Lomonosov * Method/Device: Underway cruise track measurements (CT)
Comment:
Mesozooplankton was sampled by open-closing JUDAY net with a 36 cm ring diameter and mesh size of 0.125 mm. The open-closing mechanism used was the Nansen mechanical lock system allowing nets to be vertically towed through standard depths (0-10, 10-25, 25-50, 50-100, 100-200, 200-300, 300-500 m) and closed at the upper depth level. Depth of tow was evaluated by wire paid out and the angle of wire inclination. The 10-20 ml samples were preserved in 3-4% buffered formaldehyde and processed on return to the laboratory. All of copepods were identified to genus level, other taxanomic groups - to type, class, order and family levels.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DATE/TIMEDate/TimeGeocode
2LATITUDELatitudeGeocode
3LONGITUDELongitudeGeocode
4DEPTH, waterDepth watermGeocode
5Depth, bathymetricBathy depthmBileva, O K
6Sample code/labelSample labelBileva, O K
7Depth, top/minDepth topmBileva, O K
8Depth, bottom/maxDepth botmBileva, O K
9VolumeVolm3Bileva, O K
10Ctenocalanus vanus, lengthC. vanus lmmBileva, O Kaverage
11Ctenocalanus vanus, female, lengthC. vanus f lmmBileva, O Kaverage
12Ctenophora, lengthCtenophora lmmBileva, O Kaverage
13Decapoda, lengthDecapoda lmmBileva, O Kaverage
14Decapoda, larvae, lengthDecapoda larv lmmBileva, O Kaverage
15Disco spp., lengthDisco spp. lmmBileva, O Kaverage
16Doliolidae, lengthDoliolidae lmmBileva, O Kaverage
17Doliolina muelleri, lengthD. muelleri lmmBileva, O Kaverage
18Dolioloides rarum, lengthD. rarum lmmBileva, O Kaverage
19Doliolum denticulatum, lengthD. denticulatum lmmBileva, O Kaverage
20Doliolum spp., lengthDoliolum spp. lmmBileva, O Kaverage
21Echinodermata, larvae, lengthEchinod larv lmmBileva, O Kaverage
22Euaugaptilus hecticus, lengthE. hecticus lmmBileva, O Kaverage
23Euaugaptilus hecticus, female, lengthE. hecticus f lmmBileva, O Kaverage
24Euaugaptilus spp., lengthEuaugaptilus spp. lmmBileva, O Kaverage
25Eucalanidae, lengthEucalanidae lmmBileva, O Kaverage
26Eucalanidae, c3, lengthEucalanidae c3 lmmBileva, O Kaverage
27Eucalanus elongatus, lengthE. elongatus lmmBileva, O Kaverage
28Eucalanus elongatus, copepodites, lengthE. elongatus c lmmBileva, O Kaverage
29Eucalanus elongatus, c1, lengthE. elongatus c1 lmmBileva, O Kaverage
30Eucalanus elongatus, c3, lengthE. elongatus c3 lmmBileva, O Kaverage
31Eucalanus elongatus, c4, lengthE. elongatus c4 lmmBileva, O Kaverage
32Eucalanus elongatus, female, lengthE. elongatus f lmmBileva, O Kaverage
33Euchaeta acuta, lengthE. acuta lmmBileva, O Kaverage
34Euchaeta acuta, female, lengthE. acuta f lmmBileva, O Kaverage
35Euchaeta acuta, male, lengthE. acuta m lmmBileva, O Kaverage
36Euchaeta hebes, female, lengthE. hebes f lmmBileva, O Kaverage
37Euchaeta marina, lengthE. marina lmmBileva, O Kaverage
38Euchaeta marina, female, lengthE. marina f lmmBileva, O Kaverage
39Euchaeta marina, male, lengthE. marina m lmmBileva, O Kaverage
40Euchaeta spp., lengthEuchaeta spp. lmmBileva, O Kaverage
41Euchaeta spp., copepodites, lengthEuchaeta spp. c lmmBileva, O Kaverage
42Euchaeta spp., c1, lengthEuchaeta spp. c1 lmmBileva, O Kaverage
43Euchaeta spp., c2, lengthEuchaeta spp. c2 lmmBileva, O Kaverage
44Euchaeta spp., c3, lengthEuchaeta spp. c3 lmmBileva, O Kaverage
45Euchaeta spp., c4, lengthEuchaeta spp. c4 lmmBileva, O Kaverage
46Euchaeta spp., c5, lengthEuchaeta spp. c5 lmmBileva, O Kaverage
47Euchaeta spp., male, lengthEuchaeta spp. m lmmBileva, O Kaverage
48Euchaetidae, copepodites, lengthEuchaetidae c lmmBileva, O Kaverage
49Euchirella messinensis, c5, lengthE. messinensis c5 lmmBileva, O Kaverage
50Euchirella messinensis, female, lengthE. messinensis f lmmBileva, O Kaverage
51Euchirella rostrata, lengthE. rostrata lmmBileva, O Kaverage
52Euchirella rostrata, copepodites, lengthE. rostrata c lmmBileva, O Kaverage
53Euchirella rostrata, c1, lengthE. rostrata c1 lmmBileva, O Kaverage
54Euchirella rostrata, c3, lengthE. rostrata c3 lmmBileva, O Kaverage
55Euchirella rostrata, c4, lengthE. rostrata c4 lmmBileva, O Kaverage
56Euchirella rostrata, c5, lengthE. rostrata c5 lmmBileva, O Kaverage
57Euchirella rostrata, female, lengthE. rostrata f lmmBileva, O Kaverage
58Euchirella rostrata, male, lengthE. rostrata m lmmBileva, O Kaverage
59Euchirella spp., lengthEuchirella spp. lmmBileva, O Kaverage
60Euchirella spp., copepodites, lengthEuchirella spp. c lmmBileva, O Kaverage
61Euchirella spp., c1, lengthEuchirella spp. c1 lmmBileva, O Kaverage
62Euchirella spp., c2, lengthEuchirella spp. c2 lmmBileva, O Kaverage
63Euchirella spp., c3, lengthEuchirella spp. c3 lmmBileva, O Kaverage
64Euchirella spp., c4, lengthEuchirella spp. c4 lmmBileva, O Kaverage
65Euchirella spp., c5, lengthEuchirella spp. c5 lmmBileva, O Kaverage
66Eudoxoides spiralis, lengthE. spiralis lmmBileva, O Kaverage
67Eudoxoides spiralis, female, lengthE. spiralis f lmmBileva, O Kaverage
68Euphausiacea, lengthEuphausiacea lmmBileva, O Kaverage
69Euphausiacea, larvae, lengthEuphausiacea larv lmmBileva, O Kaverage
70Euphausiacea, nauplii, lengthEuphausiacea naup lmmBileva, O Kaverage
71Euterpina acutifrons, female, lengthE. acutifrons f lmmBileva, O Kaverage
72Farranula carinata, female, lengthF. carinata f lmmBileva, O Kaverage
73Farranula carinata, male, lengthF. carinata m lmmBileva, O Kaverage
74Farranula curta, copepodites, lengthF. curta c lmmBileva, O Kaverage
75Farranula curta, female, lengthF. curta f lmmBileva, O Kaverage
76Farranula curta, male, lengthF. curta m lmmBileva, O Kaverage
77Farranula gracilis, female, lengthF. gracilis f lmmBileva, O Kaverage
78Farranula gracilis, male, lengthF. gracilis m lmmBileva, O Kaverage
79Farranula rostrata, lengthF. rostrata lmmBileva, O Kaverage
80Farranula rostrata, female, lengthF. rostrata f lmmBileva, O Kaverage
81Farranula rostrata, male, lengthF. rostrata m lmmBileva, O Kaverage
82Farranula spp., copepodites, lengthFarranula spp. c lmmBileva, O Kaverage
83Farranula spp., female, lengthFarranula spp. f lmmBileva, O Kaverage
84Farranula spp., male, lengthFarranula spp. m lmmBileva, O Kaverage
85Fritillaria pellucida, lengthF. pellucida lmmBileva, O Kaverage
86Fritillaria spp., lengthFritillaria spp. lmmBileva, O Kaverage
87Gaetanus kruppii, lengthG. kruppii lmmBileva, O Kaverage
88Gastropoda, lengthGastropoda lmmBileva, O Kaverage
89Haloptilus acutifrons, lengthH. acutifrons lmmBileva, O Kaverage
90Haloptilus acutifrons, female, lengthH. acutifrons f lmmBileva, O Kaverage
91Haloptilus angusticeps, lengthH. angusticeps lmmBileva, O Kaverage
92Haloptilus longicirrus, female, lengthH. longicirrus f lmmBileva, O Kaverage
93Haloptilus longicirrus, male, lengthH. longicirrus m lmmBileva, O Kaverage
94Haloptilus longicornis, lengthH. longicornis lmmBileva, O Kaverage
95Haloptilus longicornis, copepodites, lengthH. longicornis c lmmBileva, O Kaverage
96Haloptilus longicornis, c4, lengthH. longicornis c4 lmmBileva, O Kaverage
97Haloptilus longicornis, c5, lengthH. longicornis c5 lmmBileva, O Kaverage
98Haloptilus longicornis, female, lengthH. longicornis f lmmBileva, O Kaverage
99Haloptilus longicornis, male, lengthH. longicornis m lmmBileva, O Kaverage
100Haloptilus ornatus, female, lengthH. ornatus f lmmBileva, O Kaverage
101Haloptilus ornatus, male, lengthH. ornatus m lmmBileva, O Kaverage
102Haloptilus paralongicirrus, lengthH. paralongicirrus lmmBileva, O Kaverage
103Haloptilus paralongicirrus, female, lengthH. paralongicirrus f lmmBileva, O Kaverage
104Haloptilus paralongicirrus, male, lengthH. paralongicirrus m lmmBileva, O Kaverage
105Haloptilus spp., lengthHaloptilus spp. lmmBileva, O Kaverage
106Haloptilus spp., copepodites, lengthHaloptilus spp. c lmmBileva, O Kaverage
107Haloptilus spp., c5, lengthHaloptilus spp. c5 lmmBileva, O Kaverage
108Haloptilus spp., male, lengthHaloptilus spp. m lmmBileva, O Kaverage
109Heteropoda, lengthHeteropoda lmmBileva, O Kaverage
110Heterorhabdus papilliger, copepodites, lengthH. papilliger c lmmBileva, O Kaverage
111Heterorhabdus papilliger, c4, lengthH. papilliger c4 lmmBileva, O Kaverage
112Heterorhabdus papilliger, c5, lengthH. papilliger c5 lmmBileva, O Kaverage
113Heterorhabdus papilliger, female, lengthH. papilliger f lmmBileva, O Kaverage
114Heterorhabdus papilliger, male, lengthH. papilliger m lmmBileva, O Kaverage
115Heterorhabdus spp., lengthHeterorhabdus spp. lmmBileva, O Kaverage
116Heterorhabdus spp., copepodites, lengthHeterorhabdus spp. c lmmBileva, O Kaverage
117Heterorhabdus spp., c4, lengthHeterorhabdus spp. c4 lmmBileva, O Kaverage
118Hippopodius hippopus, lengthH. hippopus lmmBileva, O Kaverage
119Hydroidea, lengthHydroidea lmmBileva, O Kaverage
120Hydrozoa, lengthHydrozoa lmmBileva, O Kaverage
121Hyperiidae, lengthHyperiidae lmmBileva, O Kaverage
122Hyperiidae, larvae, lengthHyperiidae larv lmmBileva, O Kaverage
123Isopoda, lengthIsopoda lmmBileva, O Kaverage
124Lensia spp., lengthLensia spp. lmmBileva, O Kaverage
125Limacina inflata, lengthL. inflata lmmBileva, O Kaverage
126Limacina retroversa, lengthL. retroversa lmmBileva, O Kaverage
127Limacina spp., lengthLimacina spp. lmmBileva, O Kaverage
128Limacina trochiformis, lengthL. trochiformis lmmBileva, O Kaverage
129Lubbockia spp., lengthLubbockia spp. lmmBileva, O Kaverage
130Lubbockia spp., copepodites, lengthLubbockia spp. c lmmBileva, O Kaverage
131Lubbockia squillimana, lengthL. squillimana lmmBileva, O Kaverage
132Lubbockia squillimana, female, lengthL. squillimana f lmmBileva, O Kaverage
133Lucicutia clausi, lengthL. clausi lmmBileva, O Kaverage
134Lucicutia clausi, c5, lengthL. clausi c5 lmmBileva, O Kaverage
135Lucicutia clausi, female, lengthL. clausi f lmmBileva, O Kaverage
136Lucicutia clausi, male, lengthL. clausi m lmmBileva, O Kaverage
137Lucicutia flavicornis, lengthL. flavicornis lmmBileva, O Kaverage
138Lucicutia flavicornis, copepodites, lengthL. flavicornis c lmmBileva, O Kaverage
139Lucicutia flavicornis, c2, lengthL. flavicornis c2 lmmBileva, O Kaverage
140Lucicutia flavicornis, c3, lengthL. flavicornis c3 lmmBileva, O Kaverage
141Lucicutia flavicornis, c4, lengthL. flavicornis c4 lmmBileva, O Kaverage
142Lucicutia flavicornis, c5, lengthL. flavicornis c5 lmmBileva, O Kaverage
143Lucicutia flavicornis, female, lengthL. flavicornis f lmmBileva, O Kaverage
144Lucicutia flavicornis, male, lengthL. flavicornis m lmmBileva, O Kaverage
145Lucicutia gemina, lengthL. gemina lmmBileva, O Kaverage
146Lucicutia gemina, c5, lengthL. gemina c5 lmmBileva, O Kaverage
147Lucicutia gemina, female, lengthL. gemina f lmmBileva, O Kaverage
148Lucicutia gemina, male, lengthL. gemina m lmmBileva, O Kaverage
149Lucicutia ovalis, lengthL. ovalis lmmBileva, O Kaverage
150Lucicutia ovalis, copepodites, lengthL. ovalis c lmmBileva, O Kaverage
151Lucicutia ovalis, c4, lengthL. ovalis c4 lmmBileva, O Kaverage
152Lucicutia ovalis, c5, lengthL. ovalis c5 lmmBileva, O Kaverage
153Lucicutia ovalis, female, lengthL. ovalis f lmmBileva, O Kaverage
154Lucicutia ovalis, male, lengthL. ovalis m lmmBileva, O Kaverage
155Lucicutia spp., copepodites, lengthLucicutia spp. c lmmBileva, O Kaverage
156Lucicutia spp., c4, lengthLucicutia spp. c4 lmmBileva, O Kaverage
157Lucicutia spp., c5, lengthLucicutia spp. c5 lmmBileva, O Kaverage
158Lucicutia spp., female, lengthLucicutia spp. f lmmBileva, O Kaverage
159Lucicutia spp., male, lengthLucicutia spp. m lmmBileva, O Kaverage
160Lucifer spp., lengthLucifer spp. lmmBileva, O Kaverage
161Macrosetella gracilis, female, lengthM. gracilis f lmmBileva, O Kaverage
162Mecynocera clausi, copepodites, lengthM. clausi c lmmBileva, O Kaverage
163Mecynocera clausi, c5, lengthM. clausi c5 lmmBileva, O Kaverage
164Mecynocera clausi, female, lengthM. clausi f lmmBileva, O Kaverage
165Mecynocera clausi, male, lengthM. clausi m lmmBileva, O Kaverage
166Mesocalanus tenuicornis, lengthM. tenuicornis lmmBileva, O Kaverage
167Mesocalanus tenuicornis, c3, lengthM. tenuicornis c3 lmmBileva, O Kaverage
168Mesocalanus tenuicornis, c4, lengthM. tenuicornis c4 lmmBileva, O Kaverage
169Mesocalanus tenuicornis, c5, lengthM. tenuicornis c5 lmmBileva, O Kaverage
170Mesocalanus tenuicornis, female, lengthM. tenuicornis f lmmBileva, O Kaverage
171Mesocalanus tenuicornis, male, lengthM. tenuicornis m lmmBileva, O Kaverage
172Microsetella rosea, lengthM. rosea lmmBileva, O Kaverage
173Microsetella rosea, copepodites, lengthM. rosea c lmmBileva, O Kaverage
174Microsetella rosea, c5, lengthM. rosea c5 lmmBileva, O Kaverage
175Microsetella rosea, female, lengthM. rosea f lmmBileva, O Kaverage
176Microsetella spp., copepodites, lengthMicrosetella spp. c lmmBileva, O Kaverage
177Miracia efferata, lengthM. efferata lmmBileva, O Kaverage
178Mollusca, lengthMollusca lmmBileva, O Kaverage
179Mormonilla minor, lengthM. minor lmmBileva, O Kaverage
180Mormonilla minor, female, lengthM. minor f lmmBileva, O Kaverage
181Mormonilla spp., lengthMormonilla spp. lmmBileva, O Kaverage
182Mormonilla spp., copepodites, lengthMormonilla spp. c lmmBileva, O Kaverage
183Mormonilla spp., female, lengthMormonilla spp. f lmmBileva, O Kaverage
184Nannocalanus minor, c2, lengthN. minor c2 lmmBileva, O Kaverage
185Nannocalanus minor, c3, lengthN. minor c3 lmmBileva, O Kaverage
186Nannocalanus minor, c4, lengthN. minor c4 lmmBileva, O Kaverage
187Nannocalanus minor, c5, lengthN. minor c5 lmmBileva, O Kaverage
188Nannocalanus minor, female, lengthN. minor f lmmBileva, O Kaverage
189Nannocalanus minor, male, lengthN. minor m lmmBileva, O Kaverage
190Neocalanus gracilis, c1, lengthN. gracilis c1 lmmBileva, O Kaverage
191Neocalanus gracilis, c2, lengthN. gracilis c2 lmmBileva, O Kaverage
192Neocalanus gracilis, c3, lengthN. gracilis c3 lmmBileva, O Kaverage
193Neocalanus gracilis, c4, lengthN. gracilis c4 lmmBileva, O Kaverage
194Neocalanus gracilis, c5, lengthN. gracilis c5 lmmBileva, O Kaverage
195Neocalanus gracilis, female, lengthN. gracilis f lmmBileva, O Kaverage
196Neocalanus gracilis, male, lengthN. gracilis m lmmBileva, O Kaverage
197Neocalanus spp., c3, lengthNeocalanus spp. c3 lmmBileva, O Kaverage
198Oculosetella gracilis, lengthO. gracilis lmmBileva, O Kaverage
199Oikopleura dioica, lengthO. dioica lmmBileva, O Kaverage
200Oikopleura spp., lengthOikopleura spp. lmmBileva, O Kaverage
201Oikopleura spp., copepodites, lengthOikopleura spp. c lmmBileva, O Kaverage
202Oikopleura spp., larvae, lengthOikopleura spp. larv lmmBileva, O Kaverage
203Oithona atlantica, female, lengthO. atlantica f lmmBileva, O Kaverage
204Oithona decipiens, female, lengthO. decipiens f lmmBileva, O Kaverage
205Oithona decipiens, male, lengthO. decipiens m lmmBileva, O Kaverage
206Oithona hamata, female, lengthO. hamata f lmmBileva, O Kaverage
207Oithona linearis, female, lengthO. linearis f lmmBileva, O Kaverage
208Oithona nana, female, lengthO. nana f lmmBileva, O Kaverage
209Oithona plumifera, lengthO. plumifera lmmBileva, O Kaverage
Size:
2830 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML (shows only first 2000 rows)