Dataset: Fish lengths - juveniles
Deployment: Carr_1999

juvenile fish lengths

Principal Investigator:

Mark Carr (University of California-Santa Cruz, UCSC)

Co-Principal Investigator:

Christopher Edwards

Dr John Carlos Garza (University of California-Santa Cruz, UCSC)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Integrative evaluation of larval dispersal and delivery in kelp rockfish using inter-generational genetic tagging, demography and oceanography (Larval Dispersal in Kelp Rockfish)

Data URL:

https://www.bco-dmo.org/dataset-deployment/684460/data

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Description

Methods & Sampling

Dataset acquisition description

Tissue samples are collected from juvenile fish for genetic samples. Samples from juvenile fishes are collected from larval collectors (SMURFs) and by divers using collecting nets (BINCKE) at the kelp canopy surface. Juvenile fish are taken aboard a vessel, fin-clipped (a small portion of the second dorsal or caudal fin) to obtain tissue for genetic analysis, measured, and returned to nearby kelp canopy habitat. Dataset includes the date and location of sampling, species, individual length (total length to the nearest mm), and disposition of the sampled individual (sacrificed or released).

Data Processing Description

Dataset Processing Description

Data are entered by hand and double checked for accuracy. Dataset is checked for valid entries and completeness.

BCO-DMO Processing Notes:
- added conventional header with dataset name, PI name, version date
- modified parameter names to conform with BCO-DMO naming conventions
- re-formatted date from m/d/yyyy to yyyy-mm-dd
- blank values replaced with no data value 'nd'
- changed lat/lon (0,0 - no location) to nd's

Dataset version 1 (2017-03-17) replaced by version 2 (2021-06-16)
* Rows for data with the following dates and gear/locations had a comment that was just a single double quote character ("). That was causing parsing issues in the dataset so the character was changed to the missing data identifier instead in data version 2.

2015-08-27 BINCKE M086 B2047 GBY

2015-08-27 BINCKE M086 BC15 GBY

2015-08-27 BINCKE M086 BC16 GBY

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1260693	NSF Division of Ocean Sciences

Instruments

BINCKE net

Supplied Name:

Supplied Description:

Used by divers to collect juvenile fish

Instrument Type

Generic Name: BINCKE net

Generic Description:

The Benthic Ichthyofauna Net for Coral/Kelp Environments (BINCKE) is a rectangular net opened and closed by means of a rigid, hinged frame at one end and of variable size depending upon the size and behavior of targeted species. It is used for the collection of fishes from structurally complex environments (e.g., coral reefs, kelp forests.
See Anderson T.W. and M.H. Carr. 1998. BINCKE: A highly efficient net for collecting reef-associated fishes. Environmental Biology of Fishes 51:111-115.

larval fish collector

Supplied Name: SMURF

Supplied Description:

SMURFs used in this study were adapted from a design used by Steele et al. (2002). Each SMURF (1.0×0.35 m dia.) was constructed using a 1.2×1.0 m section of green plastic mesh with 2.5 cm grid (Grow Guard™, model #038-2416, Israel) rolled into a cylinder. A haphazardly folded 4.5×1.2 m section of black plastic mesh with 5.0×7.5 cm grid (Conwed Plastics, model #XB 5968-100-SSF, USA) was inserted into the cylinder. The outer mesh of 2.5 cm grid did not restrict movement of settlement size fish into or out of the SMURF, it did however, prevent entry of larger fish.

M.A. Steele, J.C. Malone, A.M. Findlay, M.H. Carr, G.E. Forrester. A simple method for estimating larval supply in reef fishes and a preliminary test of population limitation by larval delivery in the kelp bass, Paralabrax clathratus. Mar. Ecol. Prog. Ser., 235 (2002), pp. 195–203

Instrument Type

Generic Name: larval fish collector

Acronym: SMURF

Generic Description:

The Standard Monitoring Unit for the recruitment of Reef Fishes (SMURF) consists of a cylinder of fine mesh plastic grid that contains a folded section of larger mesh plastic grid.

See Ammann, A.J. 2004. SMURFs: standard monitoring units for the recruitment of temperate reef fishes. Journal of Experimental Marine Biology and Ecology 299:135– 154. http://dx.doi.org/10.1016/j.jembe.2003.08.014

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
date	date sample was collected formatted as yyyy-mm-dd	unitless	date
gear	gear type used for collection: SMURF=Standardized Monitoring Unit for the Recruitment of Fishes - deployed 2m below the surface. (Ammann A.J. 2004) BINCKE=Benthic Ichthyofauna Net for Coral/Kelp Environments. (Anderson T.W. and M.H. Carr. 1998) BENTHIC SMURF=SMURF deployed on the seafloor unknown=sample with unknown collection method.	unitless	instrument
sample	Sample ID number. (NA if no sample taken)	unitless	sample
species	Code for fish species identification abbreviated as first letter of genus and first three letters of species names. See "species codes" worksheet for values and definitions.	unitless	species
length_mm	total length of the fish (nd if no length measured)	millimeters (mm)	length
fate	whether the fish was released live or killed for sampling: released; sacrificed; unknown	unitless	no_bcodmo_term
condition	condition of fish released live: good; fair; poor; unknown	unitless	no_bcodmo_term
count_fish_captured	number of individuals represented in this sample	individual	count
count_samples	number of samples collected from this capture	sample	count
lat_gps	latitude at which sample was collected; obtained from GPS unit	decimal degrees in WGS84 coordinate system	lat
lon_gps	longitude at which sample was collected; obtained from GPS unit	decimal degrees in WGS84 coordinate system	lon
concerns	comment	unitless	comment
comments	further comment	unitless	comment
year	sampling year	unitless	year
month	sampling month	unitless	month
day	sampling day	unitless	day
location	samplling site code	unitless	site
subregion	subregion of sampling area	unitless	site
SMURF_array	identifier code of sampler	unitless	instrument
date_delivered_to_NMFS	date sample was delivered to NMFS	unitless	date
NMFS_id	sample identifier at NMFS; formatted as yyyy-mm-dd	unitless	sample

Database

Contribute Data

Dataset: Fish lengths - juveniles
Deployment: Carr_1999

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Fish lengths - juvenilesDeployment: Carr_1999

Dataset acquisition description

Dataset Processing Description

Dataset: Fish lengths - juveniles
Deployment: Carr_1999