Collection Data

Page Contents: Section | Significance | Background | Location & Dates | Taxonomic Contents | Documentation | Description of Collection | Collection Inventory | Collection Assets | Specimen Condition | Container Condition | Label Condition | Label Content | Level of Taxonomic Identification

Tjarno Collection

Section Responsible for Processing (Top)


Significance (Top)

Many northern European species have been reported from the northeast Pacific. In many cases these reports actually refer to native species because existing literature is inadequate to distinguish between them and similar European species. This means that local biodiversity is underestimated and the biogeographical ranges of many species is overestimated. This collection was created to provide good comparative material that can be used to correctly identify species. Special emphasis was placed on obtaining polychaete worms. Specimens belonging to other phyla were also collected to help supplement the NHMLAC's holdings.

Background (Top)

Leslie Harris (NHMLAC Polychaete Collection Manager) spent a month at Tjarno Marine Laboratory, Sweden, (TML) at her own expense to collect this material. While there, she also obtained a small collections of identified specimens donated by the TML (courtesy of Mr. Hans G. Hansson), plus the personal collection of Dr. Arne Nygren (University of Goteborg, Sweden).

Collection Location and Dates (Top)

Samples were collected between 3 - 29 April 2002. The majority of samples were made in the immediate area around Tjarno and within a steep-walled marine canyon, known as the Kosterfjorden. Habitats included soft-bottom mud, intertidal rock walls,boat docks, Pomatoceros reefs, Zostera beds, and gravel beds dominated by ascidians, Laminaria, and red algae. Depths ranged from intertidal to 217 meters.

Taxonomic Contents (Top)

The collection overwhelmingly consists of polychaetes. Out of a total of 899 lots, 818 lots contain polychaetes, 39 lots crustaceans,12 lots echinoderms, 17 lots molluscs, and 12 lots with either miscellaneous phyla or mixed, unsorted organisms.

Documentation (Top)

Original notebooks, transcribed data sheets, photographic slides, scanned images, maps, and electronic files are kept by Leslie Harris (NHMLAC, Polychaete Office).

Description of Collection (Top)

The entire collection is ethanol preserved. As of 22 July 2002, all 899 lots are in their original preservatives, either 10% formalin, 70% ethyl alcohol, or 95% ethyl alcohol. No voucher collection exists. Most polychaete lots consist of one species each, although a few have mixed species. Lots containing other phyla generally have mixed species, and 3 or 5 have unsorted grab residue containing multiple phyla. The collection is currently in the Polychaete Office except for the echinoderms and unsorted samples which have been transferred to the Echinoderm Section.

Collection Inventory (Top)

899 lots, the majority in 2 ml plastic screw-cap vials, and the rest in 5 ml plastic screw-cap vials, 1 oz. Nalgene jars or 2 oz. whirl-paks.

Collection Assets (Top)

Date Click to View Image Information
11/29/2010 View [186.5 kB] Raw data file

Specimen Condition (Top)

Date 4: New alcohol needed immediately (specimens will otherwise be irreparably damaged) 3: Containers need to be 'topped off' 2: New alcohol needed within next 6-12 months 1: No curation needed at present
07/24/2002 0% 0% 100% 0%

Container Condition (Top)

Date 4: Immediate short-term (less than 5 years) storage container replacement needed. Present containers are inadequate. Curate in the short-term with plastic buckets, whirltop bags, or similar. 3: Specimens contained in museum-grade long-term (greater than 5 years) storage containers. Jars need new closures (e.g. replace Bakelite and metal lids). 2: Transfer to museum-grade long-term storage containers. Replace or transfer to new jars and glass vials, replace cotton and closures. 1: Containers are museum-grade and meet highest curation standards.
07/24/2002 0% 0% 100% 0%

Label Condition (Top)

Date 4: New labels needed immediately (original labels in poor condition, paper torn/worn, legibility poor). 3: New labels needed within next 1-2 years (original labels beginning to wear, pencil writing fading, low quality paper was used). 2: New labels needed are as a result of curation and accretion of collection. 1: No new labels needed at present.
07/24/2002 0% 0% 100% 0%

Label Content (Top)

Date 2: New label or additional label needed because original label data is incomplete and supporting documentation provides additional collection data which greately enhances significance and value of each lot. 1: Label content complete. All collection data are contained on label.
07/24/2002 100% 0%

Level of Taxonomic Identification (Top)

Date 7: Not identified 6: Phylum 5: Class 4: Order 3: Family 2: Genus 1: Species
07/25/2002 0% 0% 0% 0% 0% 80% 20%