anchor.diff:  species,"The SPECIES table is the backbone of FishBase, and has the scientific name as its basic unit. Every bit of information in FishBase is attached directly or indirectly to at least one species and it is mostly through this table that information is accessed. The SPECIES table covers all of the estimated 25,000 extant fishes.",http://www.fishbase.org/manual/english/fishbasethe_species_table.htm
   spawning,"The SPAWNING table therefore presents information on the spawning season, sex ratio, absolute and relative fecundity, fecundity-length relationship and daily spawning frequency of various stocks (populations) of the same species at various localities.",http://www.fishbase.org/manual/english/fishbasethe_spawning_table.htm
   speed,"This section describes the manner in which fish swim, something they do in a surprising num-ber of ways; also, available records on the swimming speed of fish are presented. ",http://www.fishbase.org/manual/English/PDF/FB_Book_ATorres_Swimming_Speed_RF_JG.pdf
  -stocks,"Fisheries scientists work with the exploited part of populations which they term “stocks”. Similarly, aquaculturists work with “strains”, i.e., races or varieties of a certain species. Again, the distinction between a population or “race” and a subspecies is unclear. ",http://www.fishbase.org/manual/english/fishbasethe_stocks_table.htm
  +stocks,"Fisheries scientists work with the exploited part of populations which they term "stocks". Similarly, aquaculturists work with "strains", i.e., races or varieties of a certain species. Again, the distinction between a population or "race" and a subspecies is unclear. ",http://www.fishbase.org/manual/english/fishbasethe_stocks_table.htm
   swimming,"This section describes the manner in which fish swim, something they do in a surprising num-ber of ways; also, available records on the swimming speed of fish are presented. ",http://www.fishbase.org/manual/English/PDF/FB_Book_ATorres_Swimming_Speed_RF_JG.pdf
   synonyms,"When we developed the FishBase concept, back in 1988, we had the notion that fish taxonomy was in a reasonably good state, that most names used in the literature would be correct, and that the rest could be dealt with through synonymies. While these assumptions were largely true, we dreadfully underestimated the remaining difficulties such as inconsistencies in recent publications, the necessity to keep track of and completely understand taxonomic works, and the sometimes detective-like work needed to assign a piece of information to the proper biological species.",http://www.fishbase.org/manual/english/fishbasethe_synonyms_table.htm
   taxa,"A table pre-computed by the API (and pre-cached by rfishbase) containing the full taxanomic classification (according to FishBase) of each species in FishBase, along with the SpecCode, FishBase Name, and possible taxonomic codes assigned to the species.",
  
positive.code: poplf,"Length-frequency data are widely used to derive growth estimates, especially in small tropical fishes (see the POPGROWTH table, this vol.). Froese and Binohlan (2000) have shown that length-frequency curves can also be used to get a first assessment of the status of a stock  if the data are plotted in a framework of asymptotic length, length at optimum yield, and length at first maturity (see Key Facts, this vol.). With this new table, we try to collect and preserve historical data from unfished or still lightly fished populations, to be contrasted with the curves typically produced from overexploited stocks, where the large, highly fecund fish (the Mega-spawners) have disappeared and the bulk of the catch is made up of juveniles which had no chance to reproduce. ",http://www.fishbase.org/manual/english/lengthfrequency.htm
  popll,"This table contains relationships for the conversion of one length type to another for over 8,000 species of fish, derived from different publications, e.g. Moutopoulos and Stergiou (2002) and Gaygusuz et al (2006), or from fish pictures, e.g. Collette and Nauen (1983), Compagno (1984) and Randall (1997)",http://www.fishbase.org/manual/english/PDF/FB_Book_CBinohlan_Length-Length_RF_JG.pdf
  popqb,"population-based estimates of food consumption (i.e., estimates that account for the age structure of populations)",http://www.fishbase.org/manual/english/fishbasethe_popqb_table.htm
  poplw," Length-weight relationships are important in fisheries science, notably to raise length-frequency samples to total catch, or to estimate biomass from underwater length observations. The LENGTH-WEIGHT table presents the a and b values of over 5,000 length-weight relationships of the form W = a × Lb, pertaining to about over 2,000 fish species.  The units of length and weight in FishBase are centimeter and gram, respectively.",http://www.fishbase.org/manual/english/fishbasethe_length_weight_table.htm
  predats,Predators table,http://www.fishbase.org/manual/english/fishbasethe_predators_table.htm
  ration,"Individual-level species consumption, i.e., as the consumption of a particular food type by a fish of a certain size, in the form of a daily ration",http://www.fishbase.org/manual/english/fishbasethe_ration_table.htm
  refrens,Bibliographical information for scientific references cited in FishBase (by RefID),http://www.fishbase.org/manual/english/fishbasethe_references_table.htm
  
negative.code: ecology,"The head section of this table, defining habitats, is straightforward, and consists mainly of yes/no choice fields indicating the environmental preferences of a species. The categorical breakdown of possible habitats summarizes the otherwise lengthy text descriptions for species found in different types of environment, and makes such descriptive data accessible to rigorous queries. ",http://www.fishbase.org/manual/english/fishbasethe_ecology_table.htm
  ecosystem,,
  faoareas,"The FAOAREAS table lists all the FAO statistical areas in which a species occurs, and vice-versa. A choice field classifies such occurrence into: native; endemic (i.e., naturally occurring in no other FAO area); introduced; extirpated (i.e., extinct in this area but still existing in other FAO areas); reintroduced (i.e., after extirpation); unclear. Note that strains and artificial hybrids are always classified as introduced, even if the strain originates from the FAO area in question, because hybrids and strains are by definition genetically distinct from wild populations. ",http://www.fishbase.org/manual/english/fishbasethe_faoareas_table.htm
  faoarref,"The FAOAREAS REF table contains the names of the 27 statistical areas as defined by FAO, together with some notes on these, based on data from the World Resources Institute (WRI 1990, 1996). These include the length of the Coastline, the estimated Shelf area to 200 m depth, and the area of the exclusive economic zone (EEZ) [not presently shown in user version]. Note, however, that coastline length has a fractal dimension and thus should not be used in comparative studies unless measured with the same 'stick length'. WRI is working on such standardized coastline lengths, and we will use these as soon as they become available. ",http://www.fishbase.org/manual/english/fishbasethe_faoareas_ref_table.htm
  fecundity,,
  fooditems,"The FOOD ITEMS table highlights from a set list, the food items reported to be consumed by a particular fish species. Clicking on any of the highlighted food items (under the Food II field) leads, via a list, to the FOOD ITEM DETAILS, with information on the Food group, Food name, Stage/part, Commonness of the food item, Country where the sample was obtained and a Remarks field. ",http://www.fishbase.org/manual/english/fishbasethe_food_items_table.htm
  genera,"Table of species genera, by species code.  This information is all available in the taxa endpoint as well.",
  