Downloads
Overview
The data include all known coastal anadromous fish runs spawning habitat and runs for three major inland rivers - the Nashua, the Concord and the Shawsheen. Note, this data layer should not be considered definitive in determining the presence or absence of fish runs, spawning habitat, barriers or fishways. It is the DFG GIS Program’s best current representation of these features. Neither should this layer or its derived maps be used for making site specific regulatory decisions. Rather, its appropriate use is for education and regional planning. This is a transition data layer. When MASSGIS completes its "hydro centerline" project, producing a complete hydro network for the Commonwealth, inherently linear features such as fish runs and many of the spawning habitat features will be represented as such. The layer is stored in ArcSDE as ANADFISH_PT.
Also in ArcSDE are five "views", to facilitate display and query and based on joins to the related tables listed below, as follows:
- ANADFISH_PT_DAMPRESENCE - presence of a dam
- ANADFISH_PT_FISHWAYEFFECT - based on EFFECTFISH field in ANADFISH_PT_BAR table
- ANADFISH_PT_FISHWAYTYPE - based on FISHWAY field in ANADFISH_PT_BAR table
- ANADFISH_PT_MANBARRIERTYPE - based on TYPEOTHERB field in ANADFISH_PT_BAR table
- ANADFISH_PT_NATBARRIERTYPE - based on TYPENATBAR field in ANADFISH_PT_BAR table
Production
During interviews with Division biologists the data points were compiled onto 1:25000 basemaps using the best available hydrographic data. "Heads-up" digitizing was used to automate the data points. Paper forms were completed with information regarding locations of barriers, fishways, beginning and ending of runs and spawning habitat. The information from these forms was used to populate the associated look up tables (RIV, RUN, BAR).
Attributes
The point attribute table contains references to (interview) form number, (form) page number and point id number. Form and point id number were combined to form a unique ID. The references to form and page number were designed to facilitate reference back to the appropriate forms during the data checking process.
There are three lookup tables: one to identify the river; one to identify the barriers and fishways; and one to identify the runs and spawning habitats. There is a one to many relationship between the data points and the beginning/ending points of runs and spawning habitats.
Fields in the layer's point attribute table (ANADFISH_POLY):
| FORM | # of form on which original data written down |
| PAGE | page # of form |
| PTID | # on form and on markup map which identifies a feature |
| COMMENTS | comment on feature |
| ANADID | concatenation of FORM and PTID to produce a unique coverage id which is used to relate points in the coverage to records in the the .luts |
Related tables
Note: starred fields have code definitions included below.
Fields in ANADFISH_PT_RIV:
| FORM_ | # of form on which original data written down |
| RIVPAGE | page # on form on which data for particular river begins |
| RIVPTID | # on form and on markup map which identifies the beginning of a river |
| CLASS* | # defines where river flows into {(1) bay or ocean; (2) into 1; (3) into 2} |
| NAME | name of river |
| ALIAS | other name of river |
| ISCOMMENT | yes or no, simplifies reselect |
| COMMENTS | |
| ANADRIVID | concatenation of FORM and RIVPTID to produce a unique id which is used to relate to the .pat or .luts |
Table relate note:
To identify a river with any point, relate ANADID from the point attribute table to ANADRIVID in ANADFISH_PT_RIV.
fields in the ANADFISH_PT_RUN:
| FORM | # of form on which original data written down |
| RIVPAGE | page # on form on which data for particular river associated with a run begins |
| RIVPTID | # on form and on markup map which identifies a feature |
| RUNPAGE | page # on form on which data for particular EVENTTYPE begins |
| BEGPTID | # on form and PTID on markup map which marks beginning of EVENTTYPE |
| ENDPTID | # on form and PTID on markup map which marks ending of EVENTTYPE |
| SPECIES* | species of fish (separate records maintained for each species, even if run is the same) |
| EVENTTYPE* | Run or Spawning |
| STATUS1* | existing or historical |
| STATUS2* | common or rare |
| STATUS3* | confirmed or unconfirmed |
| ISCOMMENT | yes or no, comments are rare, useful for finding them. |
| COMMENTS | |
| ANADRIVID | concatenation of FORM and RIVPTID to produce a unique coverage id which is used to relate to the .pat or luts |
| ANADBGID | concatenation of FORM and BEGPTID to produce a unique coverage id which is used to relate to the .pat to identify the beginning of an EVENTTYPE |
| ANADEDID | concatenation of FORM and ENDPTID to produce a unique coverage id which is used to relate to the .pat to identify the end of an EVENTTYPE |
Table relate notes:
To identify the beginning of an EVENTTYPE, relate ANADID from the point attribute table to ANADBGID in the ANADFISH_PT_RUN.
To identify the end of an EVENTTYPE, relate ANADID from the point attribute table to ANADEDID in the ANADFISH_PT_RUN.
fields in ANADFISH_PT_BAR:
| FORM | # of form on which original data written down |
| RIVPAGE | page # on form on which data for particular river containing barrier begins |
| RIVPTID | # on form and on markup map which identifies a feature |
| BARPAGE | page # on form on which data for a particular barrier is found |
| BARPTID | # on form and on markup map which identifies a barrier |
| DAM | yes or no, simplifies reselect |
| FISHWAY | yes or no, simplifies reselect |
| TYPEFISHWAY* | what kind of fishway |
| EFFECTFISHWAY* | {(1) all species pass; (2) some species pass; (3) no species pass} (field named EFFECTFISH in SDE) |
| NATURALBAR | yes or no, simplifies reselect |
| TYPENATBAR* | what kind of natural barrier |
| OTHERBAR | yes or no, simplifies reselect |
| TYPEOTHERBAR* | what kind of man made barrier (field named TYPEOTHERB in SDE) |
| ISCOMMENT | yes or no, simplifies reselect |
| COMMENTS | |
| ISDIAGRAM | yes or no, simplifies reselect |
| ANADRIVID | concatenation of FORM and RIVPTID to produce a unique coverage id which is used to relate to the .pat or luts to identify a river |
| ANADBARID | concatenation of FORM and BARPTID to produce a unique coverage id which is used to relate to the .pat to identify the barrier location |
Table relate note:
To identify a barrier or fishway, relate ANADID from the point attribute table to ANADBARID in ANADFISH_PT_BAR.
Coding for categorical fields underlined above is as follows:
| RELATED TABLE | FIELD | DEFINITIONS |
| ANADFISH_PT_RIV | CLASS | 1 - Empties into ocean or bay 2 - Empties into 1 3 - Empties into 2 |
| ANADFISH_PT_RUN | EVENTTYPE | LOC - Local concentration RUN - Run SPN - Spawning habitat |
| SPECIES | ALW- Alewife ASH - American Shad ASM - Atlantic Salmon ATS - Atlantic Sturgeon BBH - Blueback Herring LMP - Lamprey RBS - Rainbow Smelt SNS - Shortnosed Sturgeon WPR - White Perch |
|
| STATUS1 | E - existing H - historic |
|
| STATUS2 | C - common R - rare |
|
| STATUS3 | C - confirmed U - unconfirmed |
|
| ANADFISH_PT_BAR | EFFECTFISHWAY | 1 - All species pass 2 - Some species pass 3 - No species pass |
| TYPEFISHWAY | DN - Denil EL - Elevator FL - Fishladder LO - Locks used by fish ST - Steps TM - Temporary UN - Unknown VS - Vertical slot WB - Wooden boards WD - Weir pool and denil WF - Weir pool and Fishladder WP - Weir pool WS - Weir pool and steps |
|
| TYPENATBAR | NF - Natural falls BL - Boulders DRB - Dry river bed SB - Sand bar BB - Barrier beach BD - Bog dam RAPID - Rapid VG - Thick growth vegetation GE - Ground elevation LF - Low flow |
|
| TYPEOTHERBAR | SW - Sluiceway TG - Tidegate CUL - Culvert DI - Ditch PP - Power plant SCREEN |